Model 3390 Arbitrary Waveform Generator User`s Manual

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

Model 3390

Arbitrary Waveform Generator

User’s Manual

3390-900-01 Rev. C / January 2009

Model 3390


User’s Manual

3390-900-01 Rev. C / January 2009 w w w . k e i t h l e y . c o m

A G R E A T E R M E A S U R E O F C O N F I D E N C E A G R E A T E R M E A S U R E O F C O N F I D E N C E

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

WARRANTY

Keithley Instruments, Inc. warrants this product to be free from defects in material and workmanship for a period of one (1) year from date of shipment.

Keithley Instruments, Inc. warrants the following items for 90 days from the date of shipment: probes, cables, software, rechargeable batteries, diskettes, and documentation.

During the warranty period, Keithley Instruments will, at its option, either repair or replace any product that proves to be defective.

To exercise this warranty, write or call your local Keithley Instruments representative, or contact

Keithley Instruments headquarters in Cleveland, Ohio. You will be given prompt assistance and return instructions.

Send the product, transportation prepaid, to the indicated service facility. Repairs will be made and the product returned, transportation prepaid. Repaired or replaced products are warranted for the balance of the original warranty period, or at least 90 days.

LIMITATION OF WARRANTY

This warranty does not apply to defects resulting from product modification without Keithley Instruments’ express written consent, or misuse of any product or part. This warranty also does not apply to fuses, software, non-rechargeable batteries, damage from battery leakage, or problems arising from normal wear or failure to follow instructions.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY

IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. THE REMEDIES

PROVIDED HEREIN ARE BUYER’S SOLE AND EXCLUSIVE REMEDIES.

NEITHER KEITHLEY INSTRUMENTS, INC. NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY

DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE

OF ITS INSTRUMENTS AND SOFTWARE, EVEN IF KEITHLEY INSTRUMENTS, INC. HAS BEEN ADVISED IN

ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES. SUCH EXCLUDED DAMAGES SHALL INCLUDE, BUT

ARE NOT LIMITED TO: COST OF REMOVAL AND INSTALLATION, LOSSES SUSTAINED AS THE RESULT OF

INJURY TO ANY PERSON, OR DAMAGE TO PROPERTY.

A G R E A T E R M E A S U R E O F C O N F I D E N C E

Keithley Instruments, Inc.

Corporate Headquarters • 28775 Aurora Road • Cleveland, Ohio 44139

440-248-0400 • Fax: 440-248-6168 • 1-888-KEITHLEY (1-888-534-8453) • www.keithley.com


3/07

This page left blank intentionally.


Model 3390


User’s Manual

©2008, Keithley Instruments, Inc.

Cleveland, Ohio, USA

All rights reserved.

Any unauthorized reproduction, photocopy, or use the information herein, in whole or in part, without the prior written approval of Keithley Instruments, Inc. is strictly prohibited.

KiWAVE™ is a trademark of Keithley Instruments, Inc. All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments, Inc. Other brand names are trademarks or registered trademarks of their respective holders.

Document Number: 3390-900-01 Rev. C / January 2009




Safety Precautions

The following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with non-hazardous voltages, there are situations where hazardous conditions may be present.

This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the product. Refer to the user documentation for complete product specifications.

If the product is used in a manner not specified, the protection provided by the product warranty may be impaired.

The types of product users are:

Responsible body

is the individual or group responsible for the use and maintenance of equipment, for ensuring that the equipment is operated within its specifications and operating limits, and for ensuring that operators are adequately trained.

Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the instrument.

They must be protected from electric shock and contact with hazardous live circuits.

Maintenance personnel

perform routine procedures on the product to keep it operating properly, for example, setting the line voltage or replacing consumable materials. Maintenance procedures are described in the user documentation. The procedures explicitly state if the operator may perform them. Otherwise, they should be performed only by service personnel.

Service personnel are trained to work on live circuits, perform safe installations, and repair products. Only properly trained service personnel may perform installation and service procedures.

Keithley Instruments products are designed for use with electrical signals that are rated Measurement Category I and Measurement

Category II, as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and data I/O signals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with high transient over-voltages. Measurement Category II connections require protection for high transient over-voltages often associated with local AC mains connections. Assume all measurement, control, and data I/O connections are for connection to Category I sources unless otherwise marked or described in the user documentation.

Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on cable connector jacks or test fixtures. The

American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30V RMS, 42.4V peak, or 60VDC are present. A good safety practice is to expect that hazardous voltage is present in any unknown circuit before measuring.

Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential human contact.

Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If the circuit is capable of operating at or above 1000V, no conductive part of the circuit may be exposed.

Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedance-limited sources. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card.

Before operating an instrument, ensure that the line cord is connected to a properly-grounded power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.

11/07


When installing equipment where access to the main power cord is restricted, such as rack mounting, a separate main input power disconnect device must be provided in close proximity to the equipment and within easy reach of the operator.

For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under test.

ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.

Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground. Always make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measured.

The instrument and accessories must be used in accordance with its specifications and operating instructions, or the safety of the equipment may be impaired.

Do not exceed the maximum signal levels of the instruments and accessories, as defined in the specifications and operating information, and as shown on the instrument or test fixture panels, or switching card.

When fuses are used in a product, replace with the same type and rating for continued protection against fire hazard.

Chassis connections must only be used as shield connections for measuring circuits, NOT as safety earth ground connections.

If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the use of a lid interlock.

If a screw is present, connect it to safety earth ground using the wire recommended in the user documentation.

The !

symbol on an instrument indicates that the user should refer to the operating instructions located in the user documentation.

The symbol on an instrument shows that it can source or measure 1000V or more, including the combined effect of normal and common mode voltages. Use standard safety precautions to avoid personal contact with these voltages.

The

The

symbol on an instrument shows that the surface may be hot. Avoid personal contact to prevent burns.

symbol indicates a connection terminal to the equipment frame.

If this symbol is on a product, it indicates that mercury is present in the display lamp. Please note that the lamp must be properly disposed of according to federal, state, and local laws.

The WARNING heading in the user documentation explains dangers that might result in personal injury or death. Always read the associated information very carefully before performing the indicated procedure.

The CAUTION heading in the user documentation explains hazards that could damage the instrument. Such damage may invalidate the warranty.

Instrumentation and accessories shall not be connected to humans.

Before performing any maintenance, disconnect the line cord and all test cables.

To maintain protection from electric shock and fire, replacement components in mains circuits - including the power transformer, test leads, and input jacks - must be purchased from Keithley Instruments. Standard fuses with applicable national safety approvals may be used if the rating and type are the same. Other components that are not safety-related may be purchased from other suppliers as long as they are equivalent to the original component (note that selected parts should be purchased only through Keithley Instruments to maintain accuracy and functionality of the product). If you are unsure about the applicability of a replacement component, call a Keithley Instruments office for information.

To clean an instrument, use a damp cloth or mild, water-based cleaner. Clean the exterior of the instrument only. Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the instrument. Products that consist of a circuit board with no case or chassis

(e.g., a data acquisition board for installation into a computer) should never require cleaning if handled according to instructions. If the board becomes contaminated and operation is affected, the board should be returned to the factory for proper cleaning/servicing.


Table of Contents

Section

1

2

3

4

Topic Page

Introduction

............................................................................................. 1-1

General information

.................................................................................... 1-2

Contact information

.............................................................................. 1-2

Inspection

............................................................................................. 1-2

Options and accessories

...................................................................... 1-2

Model summary

.......................................................................................... 1-2

Features

............................................................................................... 1-2

Handle adjustment

...................................................................................... 1-3

Removing the handle

........................................................................... 1-3

Adjusting the handle position

............................................................... 1-4

Connect and power the instrument

............................................................. 1-5

Line power connection

......................................................................... 1-5

Ventilation

................................................................................................... 1-6

Front Panel

.............................................................................................. 2-1

Front panel description

............................................................................... 2-2

Front panel .................................................................................................. 2-3

Power key

............................................................................................ 2-3

Graph/Local key

................................................................................... 2-3

Menu operation soft keys

..................................................................... 2-3

Display

................................................................................................. 2-3

Navigation wheel, cursor keys, and numeric keypad

........................... 2-3

Output connector

.................................................................................. 2-4

Sync output connector

......................................................................... 2-4

Trigger key

........................................................................................... 2-4

Output key

............................................................................................ 2-4

Help menu key

..................................................................................... 2-4

Utility menu key

.................................................................................... 2-4

Store/Recall menu key

......................................................................... 2-5

Modulation, Sweep, and Burst keys

..................................................... 2-5

Waveform selection keys

..................................................................... 2-5

Rear Panel

............................................................................................... 3-1

Rear panel description

................................................................................ 3-2

Rear panel connections

.............................................................................. 3-2

10 MHz Out and In connectors

............................................................ 3-2

Power connector

.................................................................................. 3-3

GPIB, USB, and LAN ports

.................................................................. 3-3

Trig In/Out, FSK / Burst connector

....................................................... 3-3

Modulation In connector

....................................................................... 3-3

Digital Output/low voltage transistor-transistor logic (LVTTL) port

....... 3-3

Setup Basics

........................................................................................... 4-1

Editing parameter values and settings

........................................................ 4-2

Numerical entry

.................................................................................... 4-2

Alphabetical entry

................................................................................. 4-2

General functions and settings

................................................................... 4-2

Selecting output function

...................................................................... 4-2

Setting frequency or period

.................................................................. 4-3

Setting amplitude

................................................................................. 4-3

Setting DC offset voltage

...................................................................... 4-4


Table of Contents

5

6

7

A

Model 3390 Arbitrary Waveform Generator User’s Manual

Setting pulse high and low levels

......................................................... 4-5

Setting waveform polarity

..................................................................... 4-5

Setting output termination

..................................................................... 4-5

Setting voltage auto ranging

................................................................. 4-6

Front panel connections

.............................................................................. 4-7

Controlling the output signal

................................................................. 4-7

Controlling the sync signal

.................................................................... 4-7

Default settings

........................................................................................... 4-8

Restoring factory default settings

......................................................... 4-9

Waveform Output Operations

............................................................. 5-1

Introduction

................................................................................................. 5-2

Output operations

........................................................................................ 5-2

Sine waveform

...................................................................................... 5-2

Square waveform

................................................................................. 5-3

Ramp waveform

................................................................................... 5-4

Noise waveform

.................................................................................... 5-5

Pulse waveform

.................................................................................... 5-5

Arbitrary waveform

............................................................................... 5-7

Amplitude modulation

........................................................................... 5-9

Frequency modulation

........................................................................ 5-10

Phase modulation

............................................................................... 5-12

Frequency-shift keying modulation

..................................................... 5-14

Pulse width modulation waveform

...................................................... 5-15

Frequency sweep

............................................................................... 5-17

Burst operation

................................................................................... 5-20

Pattern output operation

..................................................................... 5-24

System Operations

................................................................................ 6-1

Introduction

................................................................................................. 6-2

Instrument system operations

..................................................................... 6-2

Storing the instrument state

.................................................................. 6-2

Controlling the display

.......................................................................... 6-4

Controlling the error beep

..................................................................... 6-4

Controlling the system sound

............................................................... 6-4

Performing self-test

............................................................................. 6-5

Remote Programming

........................................................................... 7-1

Remote interface operation

......................................................................... 7-2

KiWAVE™ software installation

............................................................ 7-2

USB interface

....................................................................................... 7-2

IEEE-488 (GPIB) interface

................................................................... 7-3

LAN interface

........................................................................................ 7-3

LXI™ function

....................................................................................... 7-5

Remote interface commands

...................................................................... 7-8

SCPI Command Reference

................................................................. A-1

SCPI commands

........................................................................................ A-2

Command format

....................................................................................... A-2

Command separators

................................................................................. A-2

Using the MIN and MAX parameters

......................................................... A-3

Querying parameter settings

...................................................................... A-3

Command terminators ................................................................................ A-3

IEEE-488.2 common commands

............................................................... A-3

Parameter types

......................................................................................... A-4

Output data formats

................................................................................... A-5

SCPI status model

..................................................................................... A-6

Status register sets

.............................................................................. A-7

Status Byte Register and service request

............................................ A-7

Questionable Data Register

................................................................. A-8

Standard Event Register

...................................................................... A-8

SCPI command summary

.......................................................................... A-9 ii 3390-900-01 Rev. C / January 2009



B

C

Error Messages

...................................................................................... B-1

Introduction

................................................................................................ B-2

Error message definitions

.......................................................................... B-2

Application Programs

.......................................................................... C-1

About application programs

....................................................................... C-2

Application examples

................................................................................. C-2

Index

.................................................................................................................... Index-1

Table of Contents

3390-900-01 Rev. C / January 2009

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com iii

Table of Contents



iv 3390-900-01 Rev. C / January 2009


List of Figures

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

4

4

4

4

4

4

4

4

3

4

2

2

1

2

1

1

1

1

5

5

5

5

5

5

5

Section Figure Title Page

Figure 1-1 Moving the handle to an upright position

....................................... 1-3

Figure 1-2 Removing the handle from the instrument

..................................... 1-4

Figure 1-3 Default handle position for packing

................................................ 1-4

Figure 1-4 Operation handle position

.............................................................. 1-5

Figure 1-5 Carrying handle position

................................................................ 1-5

Figure 2-1 Model 3390 front panel

.................................................................. 2-2

Figure 2-2 Graph mode

................................................................................... 2-3

Figure 2-3 Default local mode

......................................................................... 2-3

Figure 3-1 Model 3390 rear panel

................................................................... 3-2

Figure 4-1 Setting instrument frequency

......................................................... 4-3

Figure 4-2 Setting instrument period

............................................................... 4-3

Figure 4-3 Setting instrument amplitude

......................................................... 4-4

Figure 4-4 Setting DC offset voltage

............................................................... 4-4

Figure 4-5 Setting waveform polarity

.............................................................. 4-5

Figure 4-6 Setting voltage auto ranging to Auto

.............................................. 4-6

Figure 4-7 Setting voltage auto ranging to Hold

.............................................. 4-6

Figure 4-8 Setting the instrument to default

.................................................... 4-9

Figure 4-9 Accept default setting change

........................................................ 4-9

Figure 5-1 Setting the high-voltage level

......................................................... 5-2

Figure 5-2 Setting the low-voltage level

.......................................................... 5-2

Figure 5-3 Setting up a sine waveform

........................................................... 5-3

Figure 5-4 Setting up a square waveform

....................................................... 5-4

Figure 5-5 Setting up a ramp waveform

.......................................................... 5-4

Figure 5-6 Setting up a noise waveform

......................................................... 5-5

Figure 5-7 Setting up a pulse waveform

......................................................... 5-7

Figure 5-8 Press the soft key under Select Wform

......................................... 5-8

Figure 5-9 Press the soft key under Built In

.................................................... 5-8

Figure 5-10 Press the soft key corresponding with the desired waveform

........ 5-8

Figure 5-11 Press the soft keys corresponding with AM

................................. 5-10

Figure 5-12 Press the soft keys corresponding with FM

................................. 5-12

Figure 5-13 Press the soft keys corresponding with PM

................................. 5-13

Figure 5-14 Press the soft keys corresponding with FSK

............................... 5-15

Figure 5-15 Press the soft keys corresponding with PWM

............................. 5-16

Figure 5-16 Press the soft keys corresponding with frequency sweep

........... 5-19

Figure 5-17 Press the soft keys corresponding with trigger setting

................ 5-19

Figure 5-18 Press the soft keys corresponding with trigger selection

(internal triggering shown)

.................................................................... 5-22

Figure 5-19 Press the soft keys corresponding with trigger slope

.................. 5-23

Figure 5-20 Press the soft keys corresponding with gated burst

.................... 5-23

Figure 5-21 Setting frequency or period for pattern output

............................. 5-24

Figure 5-22 Setting start address for pattern output

....................................... 5-24

Figure 5-23 Setting end address for pattern output

........................................ 5-24

Figure 5-24 Setting repeat on or off for pattern output

.................................... 5-25

Figure 5-25 Selecting waveform for pattern output

......................................... 5-25


List of Figures

6

6

6

6

5

5

5

5

7

7

A


Figure 5-26 Selecting slope for pattern output

................................................ 5-25

Figure 5-27 Pattern generator cable

................................................................ 5-26

Figure 5-28 Socket pin out structure

............................................................... 5-26

Figure 5-29 Connector pin out structure

.......................................................... 5-26

Figure 6-1 Press the Store / Recall key to access the instrument state menu

6-2

Figure 6-2 Enter the name for the selected memory location

.......................... 6-2

Figure 6-3 Select the desired memory location for recall

................................ 6-3

Figure 6-4 Select the desired memory location for deletion

............................ 6-3

Figure 7-1 LXI browser Web Control interface

................................................ 7-7

Figure 7-2 LXI browser Web Control Help page

.............................................. 7-8

Figure A-1 Model 3390 status model

.............................................................. A-6

2 3390-900-01 Rev. C / January 2009


List of Tables

Section Table

B

B

B

B

A

A

A

A

A

A

4

5

4

4

2

3

C

C

C

C

C

B

B

B

C

Title Page

Table 2-1 Item descriptions............................................................................ 2-2

Table 3-1 Rear panel item descriptions ......................................................... 3-2

Table 4-1 Waveform function frequency ranges ............................................ 4-3

Table 4-2 Sync signal and function relationships........................................... 4-7

Table 4-3 Factory default settings.................................................................. 4-8

Table 5-1 Parameters for each burst mode ................................................. 5-20

Table A-1 IEEE-488.2 Common commands .................................................. A-3

Table A-2 Output data formats ....................................................................... A-5

Table A-3 Status Byte register........................................................................ A-7

Table A-4 Questionable Data register ............................................................ A-8

Table A-5 Standard Event register ................................................................. A-8

Table A-6 SCPI command summary.............................................................. A-9

Table B-1 Command errors............................................................................ B-2

Table B-2 Execution errors............................................................................. B-3

Table B-3 Device-dependent errors ............................................................... B-8

Table B-4 Query errors................................................................................... B-8

Table B-5 Instrument errors ........................................................................... B-9

Table B-6 Self-test errors ............................................................................... B-9

Table B-7 Arbitrary waveform errors .............................................................. B-9

Table C-1

APPLy

example commands.......................................................... C-2

Table C-2 SRQ example commands.............................................................. C-2

Table C-3 Amplitude modulation example commands ................................... C-2

Table C-4 Linear sweep example commands ................................................ C-3

Table C-5 Pulse waveform example commands ............................................ C-3

Table C-6 Pulse width modulation example commands................................. C-3


List of Tables



2 3390-900-01 Rev. C / January 2009


In this section:

Topic

General information .................................................................................

Contact information .........................................................................

Inspection ........................................................................................

Options and accessories .................................................................

Model summary .......................................................................................

Features ..........................................................................................

Handle adjustment ..................................................................................

Removing the handle ......................................................................

Adjusting the handle position ..........................................................

Connect and power the instrument .........................................................

Line power connection ....................................................................

Ventilation ................................................................................................

Page

1-3

1-3

1-4

1-5

1-5

1-6

1-2

1-2

1-2

1-2

1-2

1-2

Section 1

Introduction


Section 1: Introduction


General information

Contact information

If you have any questions after reviewing this information, please contact your local Keithley

Instruments representative or call one of our applications engineers at 1-888-KEITHLEY

(1-888-534-8453) within the U.S. and Canada. You can also visit the Keithley Instruments website at www.keithley.com for updated worldwide contact information.

Inspection

Your Keithley Instruments Model 3390 Arbitrary Waveform Generator was carefully inspected electrically and mechanically before shipment. After unpacking all items from the shipping carton, check for any obvious signs of physical damage that may have occurred during transit (there may be a protective film over the display lens, which can be removed). Report damage to the shipping agent immediately. Save the original packing carton for possible future shipment.

The following items are included with every instrument order:

• Arbitrary Waveform Generator with power cord

• One universal serial bus (USB) cable (USB-B-1)

• One pattern generator cable (005-003-00003)

• One Ethernet crossover cable (CA-180-3)

• Accessories as ordered

• Product Information CD-ROM containing the User's Manual and any applicable release notes or addenda

Options and accessories

• Model KUSB-488A USB-to-GPIB interface adapter for USB

Model summary

The 50 MHz Model 3390 Arbitrary Waveform Generator gives you the operational flexibility suitable for use in many different applications.

Features

• 50 MHz sine and 25 MHz square waveforms

• Pulse, ramp, noise, and DC waveforms

• 14-bit, 125 MSamples/second, 256K point arbitrary waveforms

• AM, FM, PM, FSK, and PWM modulation types

• Linear and logarithmic sweep and burst operations

• Built-in external time base (10 MHz +/- 500 Hz) synchronization

• 16-bit pattern out with a synchronized clock (up to 50 MHz)

• Universal serial bus (USB) and local area network (LAN) interfaces (general purpose interface bus, GPIB is optional)

• LXI™ Class C compliant

• Save up to four waveforms in nonvolatile memory

1-2

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Handle adjustment

You can adjust the carrying handle to suit your needs. The following text provides detailed information regarding handle adjustment and removal.

Removing the handle

1. Pull slightly outward on both sides of the handle and slowly rotate the handle upright to a

90º angle with the instrument (see

Figure 1-1 ).

Figure 1-1:

Moving the handle to an upright position

3390-900-01 Rev. C / January 2009

Return to

Section Topics


1-3



2. After the handle is turned to a 90º angle with the generator, pull the handle sides out from the instrument (see

Figure 1-2 ).

Figure 1-2:

Removing the handle from the instrument

Adjusting the handle position

You can adjust the handle of the Model 3390 for packing (

Figure 1-3 ), operation (

Figure 1-4 ), and

carrying ( Figure 1-5 )

.

Position 1: Default packing position

Figure 1-3:

Default handle position for packing

1-4

Return to

Section Topics

3390-900-01 Rev. C / January 2009



Position 2: Operation position

Figure 1-4:

Operation handle position


Position 3: Carrying position

Figure 1-5:

Carrying handle position

Connect and power the instrument

Line power connection

Follow the procedure below to connect the Model 3390 to line power and turn on the instrument.

The Model 3390 operates from a line voltage of 100 V to 240 V at a frequency of 50 Hz or 60 Hz.

Line voltage is automatically sensed; there are no switches to set. Ensure the operating voltage in your area is compatible.

CAUTION Operating the instrument on an incorrect line voltage may cause damage to the instrument, possibly voiding the warranty.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


1-5



To connect and power your Model 3390:

1. Connect the female end of the supplied power cord to the power connector (AC receptacle) on the rear panel. Connect the other end of the power cord to a grounded AC outlet.

2. Turn on the instrument by pressing the front-panel power key.

WARNING The power cord supplied with the Model 3390 contains a separate ground for use with grounded outlets. When proper connections are made, instrument chassis is connected to power line ground through the ground wire in the power cord. Failure to use a grounded outlet may result in personal injury or death due to electric shock.

Ventilation

The Model 3390 has a fan and cooling vents to keep it from overheating.

CAUTION

Observe the following precautions to maintain proper ventilation:

Do not block the cooling vents.

Do not position any devices near the instrument that force air

(heated or unheated) into or onto the instrument's surfaces or cooling vents. Additional airflow could compromise accuracy performance.

Ensure adequate airflow around the instrument rear and sides for proper cooling.

1-6

Return to

Section Topics

3390-900-01 Rev. C / January 2009



Topic

Front panel description ............................................................................

Front panel ..............................................................................................

Power key .......................................................................................

Graph/Local key ..............................................................................

Menu operation soft keys ................................................................

Display ............................................................................................

Navigation wheel, cursor keys, and numeric keypad ......................

Output connector ............................................................................

Sync output connector ....................................................................

Trigger key ......................................................................................

Output key .......................................................................................

Help menu key ................................................................................

Utility menu key ...............................................................................

Store/Recall menu key ....................................................................

Modulation, Sweep, and Burst keys ................................................

Waveform selection keys ................................................................

Page

2-2

2-4

2-4

2-4

2-4

2-5

2-5

2-5

2-3

2-3

2-4

2-4

2-3

2-3

2-3

2-3

Section 2

Front Panel


Section 2: Front Panel


Front panel description

The Keithley Instruments Model 3390 Arbitrary Waveform Generator front panel is described in

this section ( Figure 2-1

).

Figure 2-1:

Model 3390 front panel

Table 2-1:

Item descriptions

Item

11

12

13

14

15

16

3

4

1

2

5, 6, 7

8

9

10

Description

Power key

Graph/Local key

Menu operation soft keys

Display

Navigation wheel, cursor keys, and numeric keypad

Output connector

Sync output connector

Trigger key

Output key

Help menu key

Utility menu key

Store/Recall menu key

Modulation, Sweep, and Burst keys

Waveform selection keys

2-2

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Front panel

Power key

Press this key to turn the Model 3390 on. Press it again to turn the Model 3390 off.

Graph/Local key

Pressing the Graph key enables the graph mode (

Figure 2-2

). You can view the waveform visually in the graph mode and change the waveform parameters by rotating the navigation wheel and pressing the cursor keys. The parameter values that the navigation wheel can reach in the graph mode are limited due to resolution.

To make an exact entry, use the numeric keypad to enter the desired value. Press the Graph key again to return to the local mode.

Figure 2-2:

Graph mode

Menu operation soft keys

Press the soft key located directly beneath the desired parameter to select that parameter. Press the soft key again to select the display menu options. When a particular parameter is selected, the indicator will light accordingly.

Display

The Model 3390 display provides visual information on the present active settings. The display will update as you enter changes using the soft keys, navigation wheel, and cursor keys. Figures displaying different modes, operations, and selections are used throughout this publication.

The following figure is an example of the display in local mode (

Figure 2-3

). This mode is the default mode for the instrument display. Upon startup, the Freq, Ampl, and Vos indicators are lit.

The default waveform output of the Model 3390 is sine waveform.

Figure 2-3:

Default local mode

Navigation wheel, cursor keys, and numeric keypad

Use the numeric keypad, cursor keys, and the navigation wheel to enter numerical and alphabetical parameters. Refer to

Section 4 ,

Editing parameter values and settings

for further information.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


2-3



2-4

Output connector

This connector houses the main signal output. Refer to Section 4

,

Editing parameter values and settings for details.

Sync output connector

The sync out signal is delivered at this connector. Refer to Section 4 ,

Front panel connections

for details.

Trigger key

Press the Trigger key to manually generate an immediate trigger that is independent of the trigger source. This is applicable to sweep, burst, and pattern out operations only.

Output key

Press the Output key to manually enable or disable the generation of waveform signals from the front-panel output channel. The default setting is OFF. The Output key is lit when enabled.

Help menu key

The Help menu key allows access to the following information:

• View remote command error: Error messages are issued when an incorrect remote command is sent to the instrument for output. These are stored in a queue and can be retrieved in the first-in-first-out (FIFO) order.

• Get HELP on any key: You can view a short description of any front-panel key by pressing and holding the key for a few seconds.

• Generate a DC voltage level: Instructions are provided for you to enable the DC-only voltage level option.

• Generate a modulated waveform: Follow the instructions provided to produce a modulated waveform.

• Default state resetting: Instructions enable you to return the instrument to the factory default state.

• View a waveform in Graph Mode: This information details use of the graph mode.

• Synchronize multiple instruments: Follow the detailed instructions for connecting multiple instruments.

• KEITHLEY Technical Support: Keithley Instruments technical support contact information is located here.

Utility menu key

The Utility menu key allows access to the following settings and parameters:

• DC: The DC offset voltage setting can be changed from the Utility menu. The default DC offset voltage is zero (0) volt for all functions.

• Sync: The sync out signal can be turned on and off from the Utility menu. All standard output functions (with the exception of DC and noise) can be associated with a sync-out signal. The signal is delivered at the Sync connector on the front panel.

• Output Setup: This key contains a number of different parameters. The output termination setting can be changed, voltage auto ranging can be turned on and off, waveform polarity can be specified as normal or inverted, the phase offset of the output waveform can be adjusted, and lastly, the 10 MHz time base output can be turned on and off.

Return to

Section Topics

3390-900-01 Rev. C / January 2009




• I/O: The general purpose interface bus (GPIB) and local area network (LAN) remote interface configurations can be set up through the Utility menu. In addition, you can view the universal serial bus (USB) interface identification here.

• PATT Mode: You can set up pattern output through the Utility menu. Pattern output provides five built-in patterns and up to four user-defined patterns that are stored in nonvolatile memory.

• System: Several system parameters can be accessed through the Utility menu. The error beeper and sound can be turned on and off, and the calibration and self-test menus can be entered.

Store/Recall menu key

The Model 3390 has five storage locations in nonvolatile memory to store instrument state. The stored instrument state holds all the parameters for the selected function, including the waveform, frequency, DC offset, amplitude, duty cycle, symmetry, modulation type, and modulation parameters.

The instrument may also be reset to its factory default settings.

Modulation, Sweep, and Burst keys

Modulation, sweep, and burst operations for the Model 3390 can be waveform-specific. The parameters for each operation are found in

Section 5 , Waveform Output Operations .

Waveform selection keys

The Model 3390 has five types of standard waveforms: Sine, square, ramp, pulse, and noise

(refer to

Section 5

,

Waveform Output Operations

for detailed information). In addition, there are five built-in arbitrary waveforms.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


2-5




2-6

Return to

Section Topics

3390-900-01 Rev. C / January 2009



Topic

Rear panel description ............................................................................

Rear panel connections ...........................................................................

10 MHz Out and In connectors .......................................................

Power connector .............................................................................

GPIB, USB, and LAN ports .............................................................

Trig In/Out, FSK / Burst connector ..................................................

Modulation In connector ..................................................................

Digital Output/low voltage transistor-transistor logic (LVTTL) port ..

Page

3-2

3-2

3-2

3-3

3-3

3-3

3-3

3-3

Section 3

Rear Panel


Section 3: Rear Panel


Rear panel description

The Keithley Instruments Model 3390 Arbitrary Waveform Generator rear panel is described in this section (

Figure 3-1 ).

Figure 3-1:

Model 3390 rear panel

Table 3-1:

Rear panel item descriptions

Item

8

9

10

1, 2

3

4

5, 6, 7

Description

10 MHz Out and In connectors

Vent

Power connector

GPIB, USB, and LAN ports

Trig In/Out, FSK / Burst connector

Modulation In connector

Digital Output/low voltage transistor-transistor logic (LVTTL) port

Rear panel connections

10 MHz Out and In connectors

The 10 MHz Out connector delivers a 10 MHz single-phase signal locked to the internal instrument clock. The 10 MHz In connector accepts an external 10 MHz clock signal. You can use these connections to synchronize multiple instruments and control phase offset.

To set up 10 MHz Out and In from a remote interface:

Use this command to specify degrees or radians:

UNIT:ANGLe {DEGree|RADian}

Use this command to specify the phase offset of the output waveform. This value can be set in degrees or radians as specified by the UNIT:ANGL command:

PHASe {<angle>|MINimum|MAXimum}

3-2

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Use this command to reset to a zero-phase reference point. This command does not affect the output waveform:

PHASe:REFerence

Use this command to enable or disable the phase-lock loss error generator. This setting is stored in volatile memory and will be reset to default (OFF) with a power off:

PHASe:UNLock:ERRor:STATe {OFF|ON}

Power connector

Connect to a grounded AC power outlet using the supplied line cord.

GPIB, USB, and LAN ports

The Model 3390 supports three remote interfaces: Universal serial bus (USB), local area network

(LAN) and general purpose interface bus (GPIB or IEEE-488). Instructions for setting up these remote interfaces can be found in

Section 7

,

Remote Programming

.

For GPIB communication, connect to the GPIB port using an IEEE-488 cable (Keithley

Instruments Model 7007-1 or 7007-2).

Trig In/Out, FSK / Burst connector

This connector routes input and output signals.

Modulation In connector

Modulate the carrier waveform with an external waveform present at the Modulation In connector on the rear panel (external source must be selected).

Digital Output/low voltage transistor-transistor logic (LVTTL) port

This parallel interface includes an edge-selectable clock and 16-bit data (for pattern out operations). The 40-pin cable is used to connect the socket with your board or device.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


3-3




3-4

Return to

Section Topics

3390-900-01 Rev. C / January 2009



Topic

Editing parameter values and settings ....................................................

Numerical entry ...............................................................................

Alphabetical entry ...........................................................................

General functions and settings ................................................................

Selecting output function .................................................................

Setting frequency or period .............................................................

Setting amplitude ............................................................................

Setting DC offset voltage ................................................................

Setting pulse high and low levels ....................................................

Setting waveform polarity ................................................................

Setting output termination ...............................................................

Setting voltage auto ranging ...........................................................

Front panel connections ..........................................................................

Controlling the output signal ...........................................................

Controlling the sync signal ..............................................................

Default settings .......................................................................................

Restoring factory default settings ....................................................

Page

4-2

4-2

4-2

4-4

4-5

4-5

4-5

4-6

4-2

4-2

4-3

4-3

4-7

4-7

4-7

4-8

4-9

Section 4

Setup Basics


Section 4: Setup Basics


Editing parameter values and settings

Use the keypad, cursor keys, and navigation wheel to adjust the Model 3390 settings. The liquid crystal display (LCD) will update as changes are made.

Numerical entry

Enter a desired value with the numeric keypad, or use the cursor keys to move the cursor on the display and increase or decrease the digit by turning the navigation wheel.

When you use the numeric keypad for an entry, all the available units for that parameter will be shown on the display. Press the soft key under the desired unit to finish the entry, or press Cancel to cancel the changes. In some cases, you may need to select the soft key under DONE to finish the entry.

Alphabetical entry

For the entry of a string of letters, turn the navigation wheel until the desired letter appears on the display. Use the cursor keys to move the cursor to the next letter or modify the letter previously entered. You can also use the +/- key to delete the letter previously entered.

General functions and settings

Selecting output function

Waveforms

The Model 3390 has five standard waveforms: Sine, square, ramp, pulse, and noise. To select a desired output function, press the corresponding front-panel key, and then set related parameters

(refer to

Section 5 , Waveform Output Operations

for detailed information). The default waveform output is sine waveform.

There are also five built-in arbitrary waveforms. You can create a custom waveform with the

KiWAVE™ waveform editor software provided with the instrument. Refer to

Section 7

,

KiWAVE™ software installation

for software installation instructions.

Modulation, Sweep, and Burst operations

• Mod: The Model 3390 has modulation for sine, square, ramp, and arbitrary waveforms using amplitude modulation (AM), frequency modulation (FM), phase modulation (PM), or frequency-shift keying (FSK). You can also use pulse width modulation (PWM) for a pulse waveform.

• Sweep: Linear and logarithmic frequency sweeping modes are included for sine, square, ramp, and arbitrary waveforms.

• Burst: Burst waveforms can be generated with any one of the standard or arbitrary waveforms (except DC).

To select the output function from a remote interface:

FUNCtion {SINusoid|SQUare|RAMP|PULSe|NOISe|DC|USER|PATTern}

You may also use the APPLy command to select the function, frequency, amplitude, and offset in one command.

4-2

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Setting frequency or period

Each waveform function has its own frequency range, but the default frequency is 1 kHz for all functions. Refer to

Table 4-1 for a list of the frequency ranges.

Table 4-1:

Waveform function frequency ranges

Function

Sine

Square

Ramp

Pulse

Arbitrary

Frequency range

1 μ Hz to 50 MHz

1 μ Hz to 25 MHz

1 μ Hz to 200 kHz

500 μ Hz to 10 MHz

1 μ Hz to 10 MHz

You may choose to set a frequency or period value. Press the Freq / Perd soft key to toggle between frequency (

Figure 4-1 ) and period ( Figure 4-2 ).

Figure 4-1:

Setting instrument frequency

Figure 4-2:

Setting instrument period

To set frequency or period:

1. Press the function key of your selection.

2. Press the soft key under Freq / Perd to select frequency or period. Ensure your selection is highlighted.

3. Use the navigation wheel with the cursor keys, or the numeric keypad to change the value.

You can change the units by using the numeric keypad in combination with the soft keys.

To set frequency or period from a remote interface:

FREQuency {<frequency>|MINimum|MAXimum}

Setting amplitude

The default amplitude for all functions is 100 mV peak-to-peak (into 50 Ω).

To set amplitude:

1. Press the function key for your selection.

2. Press the soft key under Ampl / High. Ensure Ampl is highlighted ( Figure 4-3 ).



3390-900-01 Rev. C / January 2009

Return to

Section Topics


4-3


Figure 4-3:

Setting instrument amplitude


NOTE A momentary disruption in the output waveform may occur while changing amplitude. You can disable the voltage auto ranging function (refer to

Setting voltage auto ranging ) to

prevent output disruption.

To set output amplitude from a remote interface:

VOLTage {<amplitude>|MINimum|MAXimum}

Use this command to set units:

VOLTage:UNIT {VPP|VRMS|DBM}

Setting DC offset voltage

The default DC offset voltage for all functions is zero (0) V.

To set DC offset voltage, use one of these two methods:

Method A

1. Press the function key of your selection.

2. Press the soft key under Vos / Low. Ensure Vos is highlighted (

Figure 4-4

).



Figure 4-4:

Setting DC offset voltage

4-4

Method B

NOTE

Method B can be used to specify a DC voltage line out only. Also, if you use it to set the DC offset voltage; it will hold the setting when you enter the function key of your selection.

2. Press the soft key under DC to choose DC / ON. Ensure ON is highlighted.



To set DC offset voltage from a remote interface:

VOLTage:OFFSet {<offset>|MINimum|MAXimum}

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Setting pulse high and low levels

You can set a high and low level versus specifying amplitude and DC offset. Parameters are calculated as follows:

Amplitude = |High Level| + |Low Level|

Offset = (High Level + Low Level) / 2

To set pulse high and low levels:

1. Press the function key for your selection.

2. Press the soft key under Ampl / High. Ensure High is highlighted.



4. Press the soft key under Vos / Low. Ensure Low is highlighted.



To set pulse high and low levels from a remote interface:

VOLTage:HIGH {<voltage>|MINimum|MAXimum}

VOLTage:LOW {<voltage>|MINimum|MAXimum}

Setting waveform polarity

Waveform polarity can be specified as normal or inverted. When a non-zero offset is specified, the waveform is inverted relative to the offset voltage, and the offset remains the same in the inverted waveform. An inverted waveform does not affect the associated sync signal.

To set waveform polarity:

2. Press the soft key under Norm / Invt to choose between normal and inverted (

Figure 4-5

).

Ensure your selection is highlighted.

3. Press the soft key under DONE to finish your selection.

Figure 4-5:

Setting waveform polarity

To set waveform polarity from a remote interface:

OUTPut:POLarity {NORMal|INVerted}

Setting output termination

The default output impedance to the front-panel Output connector is 50 Ω. The termination setting is stored in nonvolatile memory and remains after a remote interface reset, or the instrument power is turned off.

NOTE If the actual load impedance does not match the value specified, the output amplitude and offset levels will be incorrect. Invalid results may occur.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


4-5



To set output termination:

2. To set a load value: Press the soft key under Load / Hi-Z (

Figure 4-5

). Ensure Load is highlighted. Use the navigation wheel with the cursor keys, or the numeric keypad to change the value. You can change the units by using the numeric keypad in combination with the soft keys.

To select high impedance: Press the Load / Hi-Z soft key again to highlight Hi-Z.


To set output termination from a remote interface:

OUTPut:LOAD {<ohms>|INFinity|MINimum|MAXimum}

Setting voltage auto ranging

Auto ranging is enabled at power up (by default) and finds optimal settings for the output amplifier and attenuators. If auto ranging disabled, the instrument uses the current amplifier and attenuator settings.

To enable/disable voltage auto ranging:

2. Press the soft key under Rang to select Auto ( Figure 4-6 ) or Hold ( Figure 4-7

). Ensure your selection is highlighted.


Figure 4-6:

Setting voltage auto ranging to Auto

Figure 4-7:

Setting voltage auto ranging to Hold

To set voltage auto ranging from a remote interface:

VOLTage:RANGe:AUTO {OFF|ON|ONCE}

4-6

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Front panel connections

The Sync and Output connectors are both located on the front panel of the Model 3390.

Controlling the output signal

Signal from the Output connector is controlled by the Output key. The output is disabled by default at power up; this protects equipment connected to the instrument.

Press the Output key to enable the Output connector. The key is lit when output is enabled.

To enable or disable the output signal from a remote interface:

OUTPut {OFF|ON}

Controlling the sync signal

All Model 3390 output functions (except DC and noise) can be associated with a sync-out signal

(

Table 4-2 ). The sync-out signal is delivered at the Sync connector. The output signal is at a logic

"low" level when the sync signal is disabled. The sync setting is stored in nonvolatile memory and remains after a remote interface reset, or the instrument power is turned off.

The sync signal has three settings, ON, OFF and AUTO. The AUTO setting enables the instrument to vary the signal with the associated function.

Table 4-2:

Sync signal and function relationships

Function

Sine, ramp, and pulse waveforms

Square waveform

Arbitrary waveform

Internally-modulated AM, FM,

PM, and PWM

Externally-modulated AM,

FM, PM, and PWM

FSK

Triggered burst

Externally-gated burst

Relationship

Sync signal is a square waveform with a 50% duty cycle.

Relative to 0 volts, the signal is transistor-transistor logic (TTL)

"high" when waveform output is positive and TTL "low" when the waveform output is negative.

Sync signal is a square waveform with the same duty cycle.

Sync signal is a square waveform with a 50% duty cycle. The signal is TTL "high" when the first waveform point is delivered.

Sync signal is a square waveform with a 50% duty cycle that is aligned with the modulating waveform. The signal is TTL "high" during the first half of the waveform.

Sync signal is a square waveform with a 50% duty cycle that is aligned with the carrier waveform.

Sync signal is aligned with shifts in frequency. The signal is TTL

"high" during output of the hop frequency and TTL "low" during output of the carrier frequency.

The sync signal becomes TTL "high" when the burst is triggered and transitions to TTL "low" at the end of the specified number of cycles.

The sync signal starts at TTL "high" with the external gate signal and transitions to TTL "low" at the end of the last cycle.

To set the sync output:

2. Press the soft key under Sync. Press the soft key corresponding with your selection (ON,

OFF or AUTO).

To enable or disable the sync signal from a remote interface:

OUTPut:SYNC {OFF|ON}

3390-900-01 Rev. C / January 2009

Return to

Section Topics


4-7



Default settings

Table 4-3 shows the factory default settings for the Model 3390. These settings will be recalled at

power up unless you set the instrument to enable a stored state.

Table 4-3:

Factory default settings

Output configuration Default setting

Function

Frequency

Amplitude/offset

Output units

Output termination

Auto range

Sine waveform

1 kHz

100 mV peak-to-peak/0.000 V DC

V peak-to-peak

50 Ω

On

Carrier

Modulation settings

1 kHz Sine (AM, FM, PM, FSK)

Modulation waveform (AM)

1 kHz Pulse (PWM)

100 Hz Sine

Modulation waveform (PM, FM, PWM) 10 Hz Sine

AM depth

FM deviation

PM deviation

FSK hop frequency

100%

100 Hz

180°

100 Hz

FSK rate

PWM width deviation

Modulation state

10 Hz

10 μs

Off

Start/stop frequency

Sweep time

Sweep mode

Sweep state

Burst count

Burst period

Burst start phase

Burst state

Power-down recall

Display mode

Error queue

Output state

Trigger source

GPIB address

DHCP

Sweep settings

100 Hz/1 kHz

1 s

Linear

Off

Burst settings

1 cycle

10 ms

0°

Off

System-based operations

Disabled

On

0 errors

Off

Triggering operations

Internal (immediate)

Remote interface configuration

16

On

4-8

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Restoring factory default settings

You can choose to reset the Model 3390 to its original factory default settings.

To restore factory default settings:

1. Press key.

2. Press the soft key under Set to Def (

Figure 4-8

).

3. Press the soft key under YES to finish your selection (

Figure 4-9 ).

Figure 4-8:

Setting the instrument to default

Figure 4-9:

Accept default setting change

To restore factory default settings from a remote interface:

*RST

3390-900-01 Rev. C / January 2009

Return to

Section Topics


4-9




4-10

Return to

Section Topics

3390-900-01 Rev. C / January 2009


Section 5

Waveform Output Operations


Topic

Introduction .............................................................................................

Output operations ....................................................................................

Sine waveform ................................................................................

Square waveform ............................................................................

Ramp waveform ..............................................................................

Noise waveform ..............................................................................

Pulse waveform ..............................................................................

Arbitrary waveform ..........................................................................

Amplitude modulation .....................................................................

Frequency modulation ....................................................................

Phase modulation ...........................................................................

Frequency-shift keying modulation .................................................

Pulse width modulation waveform ...................................................

Frequency sweep ............................................................................

Burst operation ................................................................................

Pattern output operation .................................................................

Page

5-2

5-10

5-12

5-14

5-15

5-17

5-20

5-24

5-5

5-5

5-7

5-9

5-2

5-2

5-3

5-4


Section 5: Waveform Output Operations


Introduction

This section describes each of the Model 3390 waveform types, associated front-panel menu options, and remote interface operations for each.

General parameters:

• Frequency and amplitude limits exist: The instrument will automatically adjust frequency or amplitude as necessary each time a new function is selected.

• You can specify a high and low voltage level, or the amplitude and DC offset. For example, if you set the high level to +2 volts (

Figure 5-1

) and the low level to -3 volts (

Figure 5-2 ), the

resulting amplitude will be 5 V peak-to-peak, with an offset voltage of -0.5 V.

The default output unit is volts peak-to-peak (Vpp), but you can also select V RMS or dBm.

The output unit cannot be set to dBm if the output termination is set to high impedance

(Hi-Z). Output amplitude limits can be affected by the output units selected.

The unit setting is stored in volatile memory during operation. The default unit (Vpp) will be restored after a power up or a remote interface reset.

Figure 5-1:

Setting the high-voltage level

Figure 5-2:

Setting the low-voltage level

• The output amplitude and DC offset values are constrained by the equation below:

V peak-to-peak

≤

2× ( Vmax - |Voffset| )

Where: Vmax is the maximum allowed peak voltage for the selected output termination (5 V for a 50 Ω load, or 10 V for a high-impedance load). When the output termination setting is changed, the output amplitude automatically adjusts.

Output operations

Sine waveform

A sine waveform is a uniform waveform with a constant frequency and amplitude.

To generate a sine waveform:

1. The default waveform output of the Model 3390 is the sine waveform. If the current output function is not sine, press the Sine key.

5-2

Return to

Section Topics

3390-900-01 Rev. C / January 2009




2. Refer

for configuring common parameters including frequency/

period, amplitude, and DC offset voltage ( Figure 5-3 ).

Figure 5-3

Setting up a sine waveform

To generate a sine waveform from a remote interface:

APPLy:SINusoid [<frequency>[,<amplitude>[,<offset>]]] or

FUNCtion {SINusoid}


VOLTage {<amplitude>|MINimum|MAXimum }

VOLTage:OFFSet {<offset>|MINimum|MAXimum }

Square waveform

A square waveform has instantaneous transitions between two voltage levels. The duty cycle of a square waveform represents the amount of time in each cycle that the wave is at the high level

(the waveform is not inverted):

Duty Cycle = (Time Interval at High Level) / Period x 100%

The default value for duty cycle is 50%. The setting is stored in volatile memory and it will be restored after power off or a remote interface reset. During operation, if the square waveform duty cycle value is changed, it is stored and will be resumed when square waveform is re-selected (until instrument power off). For square waves with frequency set above 10 MHz, the range of the duty cycle is 40% to 60%. For lower frequency, the range is 20% to 80%. If you change frequency to a value that is out of scope for the current duty cycle, the Model 3390 will automatically adjust the duty cycle to the closest possible value for the new frequency. If square waveform is selected as the modulating waveform, the duty cycle is fixed at 50%. The duty cycle setting applies to square wave carrier waveform for AM, FM, PM, or PWM.

To generate a square waveform:

2. Refer



3. Press the soft key under Duty / Cycle. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under % to finish the entry or the soft key under Cancel to cancel the changes.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-3


Figure 5-4:

Setting up a square waveform


To generate a square waveform from a remote interface:

APPLy:SQUare [<frequency>[,<amplitude>[,<offset>]]] or

FUNCtion {SQUare}




FUNCtion:SQUare:DCYCle {<percent>|MINimum|MAXimum }

Ramp waveform

A ramp waveform is a triangle waveform with adjustable symmetry. Symmetry represents the percentage of time in a cycle when the ramp waveform is rising (waveform polarity is not inverted).

The default symmetry is 100%.The symmetry value is stored in volatile memory and it will be restored after power-off or a remote interface reset. During operation, if the output function is changed from ramp waveform, the symmetry is stored in memory and will be resumed when ramp waveform is re-selected (until instrument power off). The symmetry setting is not applicable when ramp waveform is used as the modulating waveform for AM, FM, PM, or PWM.

To generate a ramp waveform:

2. Refer



3. Press the soft key under Symmetry. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under % to finish the entry or the soft key under Cancel to cancel the changes.

Figure 5-5:

Setting up a ramp waveform

5-4

To generate a ramp waveform from a remote interface:

APPLy:RAMP [<frequency>[,<amplitude>[,<offset>]]]

(The command generates a ramp waveform with 100% symmetry.) or

FUNCtion {RAMP}



Return to

Section Topics

3390-900-01 Rev. C / January 2009





FUNCtion:RAMP:SYMMetry {<percent>|MINimum|MAXimum}

Noise waveform

A Gaussian noise waveform with a 20 MHz bandwidth can be generated.

To generate a noise waveform:

2. Refer

for configuring common parameters including amplitude

and DC offset voltage ( Figure 5-6

).

Figure 5-6:

Setting up a noise waveform

To generate a noise waveform from a remote interface:

APPLy:NOISe [<frequency|DEF>[,<amplitude>[,<offset>]]]

FUNCtion {NOISe}



NOTE In the APPL:NOIS command, the frequency parameter has no effect, but you still must specify a value or DEFault for it.

Pulse waveform

A pulse waveform has a pulse period, a pulse width or pulse duty cycle, an ascending edge, and a descending edge.

Pulse period / frequency

The default pulse period is 1 ms (or 1 kHz in frequency), and the allowable value ranges from 100 ns to 2000 s (or 10 MHz down to 0.5 mHz in frequency). Pulse period constrains the other parameters according to the following equation:

Pulse Period

≥

Pulse Width + 1.6 x Edge Time

NOTE The waveform generator adjusts the other parameters when necessary to accommodate the given pulse period.

Pulse width

The pulse width represents the time from the 50% point of the ascending edge to the 50% point of the following descending edge. The default pulse width is 100 μs, and the possible value ranges from 20 ns to 2000 s. The actual allowable range is determined as follows:

1.6 x Edge Time

≤

Pulse Width

≤

Pulse Period - 1.6 x Edge Time

Wmin

≤

Pulse Width

≤

Pulse Period - Wmin

3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-5



Where: Wmin is the minimum allowable value determined by the following conditions on pulse period:

Wmin = 20 ns, if pulse period is

≤

10 s

200 ns, if 10 s < pulse period

≤

100 s

2 µs, if 100 s < pulse period

≤

1000 s

20 µs, if 1000 s < pulse period

Pulse duty cycle

Specifying pulse duty cycle is another way to define a pulse waveform (versus specifying pulse width). Pulse duty cycle is defined as follows:

Duty Cycle = Pulse Width / Pulse Period x 100%

If the specified pulse duty cycle conflicts with the specified pulse width, or pulse width conflicts with the duty cycle, the most recently specified parameter will be accepted. The default duty cycle is

10%, and the acceptable range is from 0% to 100% with the following constraints:

DutyCycle

≥

Wmin / PulsePeriod x 100%

DutyCycle

≤

(1.0 - Wmin / PulsePeriod) x 100%

Where: Wmin is the minimum allowable value for pulse width as defined under the

Pulse width

topic.

Edge time

The edge time represents the time from the 10% point to the 90% point of an ascending or descending edge. The default edge time is 5 ns, and the possible value ranges from 5 ns to 100 ns, with the following constraint on the maximum allowable value:

EdgeTime

≤

0.625 x PulseWidth

To generate a pulse waveform:

2. Refer



3. Press the soft key under Width / Duty to select between setting pulse width or duty cycle.

Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press a unit soft key, or press %, to finish the entry. Press the soft key under Cancel to cancel the changes.

NOTE

You can choose to hold pulse width or duty cycle constant during changes in frequency. Press the soft key to highlight your selection (Width or Duty), then enter your frequency value.

4. Press the soft key under Edge / Time and use the navigation wheel with cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a new value and then press the soft key under nsec to finish the entry. Press the soft key under Cancel to cancel the changes.

5-6

Return to

Section Topics

3390-900-01 Rev. C / January 2009



Figure 5-7:

Setting up a pulse waveform


To generate a pulse waveform from a remote interface:

APPLy:PULSe [<frequency>[,<amplitude>[,<offset>] ]]

Or

FUNCtion {PULSe}

FREQuency {<frequency>|MINimum|MAXimum }



PULSe:PERiod {<seconds>|MINimum|MAXimum}

FUNCtion:PULSe:WIDTh {<seconds>|MINimum|MAXimum }

FUNCtion:PULSe:DCYCle {<percent>|MINimum|MAXimum }

FUNCtion:PULSe:TRANsition {<seconds>|MINimum|MAXimum }

Arbitrary waveform

The Model 3390 has five built-in arbitrary waveforms including, exponential-rise, exponential-fall, negative-ramp, sinc, and cardiac. The default arbitrary waveform is an exponential-rise waveform.

In addition, up to four user-defined arbitrary waveforms can be stored in nonvolatile memory. For each user-defined waveform, you may create up to 262,144 (256 K) points from the remote interface. You can use the KiWAVE™ waveform editor software to create waveforms, or import the

waveforms captured previously from an oscilloscope. Refer to Section 7 ,

KiWAVE™ software installation for software installation instructions.

If you choose an arbitrary waveform as the modulating waveform for AM, FM, PM, or PWM, the waveform is automatically limited to 4 K points and extra points will be removed by decimation.

NOTE If the data points do not span the full range of the output digital-to-analog converter (DAC), the maximum amplitude will be limited.

IEEE-488.2 binary block format

Following is an example of binary block format:

# 5 32768

This data begins with a number symbol (#) and is followed by a single digit that represents the number of characters in the length. The third number represents the number of bytes (32,768 bytes = 16,384 points).

A waveform data point is represented as a 16-bit integer sent in two bytes. The total number of bytes is always an even number that is twice the number of data points in the waveform.

Use the FORM:BORD command to select the byte order for binary block transfers. The default command is FORM:BORD NORM, in which the most-significant byte (MSB) of each data point is sent first. If you specify FORM:BORD SWAP, the least-significant byte (LSB) of each data point is sent first. The DATA:DAC command overwrites the waveform in volatile memory without generating an error.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-7



The following commands are point specific:

• DATA:DAC VOLATILE, {<binary block>|<value>, <value>, …}

Enter this command to download binary or decimal integer values from -8191 to +8191 into volatile memory. The values -8191 and +8191 correspond to the peak values of the waveform with the offset set at zero volts.

You can download from 1 to 65,536 (64K) points per waveform in IEEE-488.2 binary block format, or as a list of values. The range of values corresponds to the values available using internal 14-bit DAC codes.

• DATA VOLATILE, <value>, <value>, …

Enter this command to download floating-point values from -1 to +1 into volatile memory.

The values -1 and +1 correspond to the peak values of the waveform with the offset set at zero volts. You can download from 1 to 65,536 points per waveform.

NOTE

If the data points do not span the full range of the output digital-to-analog converter (DAC), the maximum amplitude will be limited. Also, the Model 3390 expands the number of points to fill the waveform memory; less than 16,384

(16K) points will automatically generate a waveform with 16,384 points. More than 16,384 points will automatically generate a waveform with 65,536 points.

To generate a built-in arbitrary waveform:

2. Press the soft key under Select Wform (

Figure 5-8

), and then the soft key under Built In

( Figure 5-9

).

Figure 5-8:

Press the soft key under Select Wform

Figure 5-9:

Press the soft key under Built In

3. Choose the desired waveform from the five built-in choices by pressing the corresponding soft key (

Figure 5-10

). The instrument will automatically update to the chosen waveform.

Figure 5-10:

Press the soft key corresponding with the desired waveform

4. Refer

for configuring common parameters including frequency/ period, amplitude, and DC offset voltage.

5-8

Return to

Section Topics

3390-900-01 Rev. C / January 2009




To generate an arbitrary waveform from a remote interface:

FUNCtion USER {EXP_RISE | EXP_FALL | NEG_RAMP | SINC | CARDIAC}

DATA:DAC VOLATILE, {<binary block>|<value>, <value>, …}

DATA VOLATILE, <value>, <value>, …

FORMat:BORDer {NORMal|SWAPped}

DATA:COPY <destination arb name> [,VOLATILE]

Amplitude modulation

Amplitude modulation allows the amplitude of the carrier waveform to vary with the modulating waveform. Only one type of modulation can be active at one time; if amplitude modulation is enabled, the previously selected modulation is automatically disabled. In addition, when amplitude modulation is enabled, sweep mode and burst mode are disabled.

Carrier waveform

The default carrier waveform is sine. You can also choose square, ramp, and arbitrary waveforms.

The default carrier frequency is 1 kHz for all waveforms. Each carrier waveform has its own acceptable range of frequencies. Refer to

Table 4-1 , Waveform function frequency ranges for

details.

Modulating waveform

The Model 3390 accepts either an internal or external modulating source.

The default source is internal with a default frequency of 100 Hz (the acceptable range is 2 mHz to

20 kHz). The default internal modulating waveform is a sine waveform, but you can also select any of the following:

• Square waveform with 50% duty cycle

• URamp (up or positive ramp with 100% symmetry)

• DRamp (down or negative ramp with 0% symmetry)

• Triangle waveform (ramp with 50% symmetry)

Select the external modulating source to modulate the carrier waveform with an external signal present at the Modulation In connector on the rear panel.

Modulation depth

The modulation depth controls the magnitude of the amplitude variation of the modulation output.

It is defined in the following formula:

Modulation Depth = (Max Amplitude - Min Amplitude) / Amplitude x 100%

Where: Amplitude is the specified amplitude of the carrier waveform; Max Amplitude and Min

Amplitude are the maximum and minimum amplitudes of the resulting modulation waveform.

When Modulation Depth is 0%, the amplitude of the modulation waveform stays at half of the specified amplitude of the carrier waveform. As a result, Min Amplitude may be negative when

Modulation Depth is larger than 100%. The default Modulation Depth is 100% and the allowable range is from 0% to 120%.

Choosing the external source means the modulation is controlled by the specified modulation depth and the ±5 V signal levels of the external waveform. When the external waveform is at +5 V,

3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-9



the amplitude of the output will reach Max Amplitude. When the external waveform is at -5 V, the amplitude of the output will reach Min Amplitude.

The modulation output of the Model 3390 will not exceed ±5 V peak (into a 50 Ω load) even if the modulation depth is greater than 100%.

To set up amplitude modulation:

1. Select the carrier waveform (Sine, Square, Ramp, or Arb). Follow the instructions for setting up that specific waveform as given in this publication. Refer to

Section 4

,

Setup

Basics

for assistance.

3. Press the soft key under Type; then press the soft key under AM to select amplitude modulation (

Figure 5-11

). An amplitude modulation output will be generated with the set parameters.

Figure 5-11:

Press the soft keys corresponding with AM

4. Press the soft key under Src to select between internal source (Int) and external source

(Ext) for the modulating waveform (

Figure 5-11 ). If internal source is selected:

a) Press the soft key under Shape to select the modulating waveform. If arbitrary waveform (Arb) is chosen, the instrument will use the currently selected arbitrary waveform. Press the Mod key to see which arbitrary modulating waveform is currently selected.

b) Press the soft key under AM / Freq. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

5. Press the soft key under AM / Depth ( Figure 5-11

). Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under % to finish the entry, or the soft key under Cancel to cancel the changes.

To set up amplitude modulation from a remote interface:

FUNCtion {SINusoid|SQUare|RAMP|USER}




AM:INTernal:FUNCtion {SINusoid|SQUare|RAMP|NRAMp|TRIangle|NOISe|USER}

AM:INTernal:FREQuency {<frequency>|MINimum|MAXimum}

AM:DEPTh {<depth in percent> MINimum|MAXimum }

AM:SOURce {INTernal|EXTernal}

AM:STATe {OFF|ON}

5-10

Frequency modulation

Frequency modulation allows the frequency of the carrier waveform to vary with the modulating waveform. Only one type of modulation can be active at one time. If frequency modulation is

Return to

Section Topics

3390-900-01 Rev. C / January 2009



Section 5: Waveform Output Operations enabled, the previously selected modulation is automatically disabled. In addition, when frequency modulation is enabled, sweep mode and burst mode are disabled.




Table 4-1 : Waveform function frequency ranges for

details.




20 kHz). The default internal modulating waveform is a sine waveform, but you can also select from the following:






Frequency deviation

The frequency deviation represents the peak variation in the frequency of the modulation output, based on that of the carrier waveform. The default value is 100 Hz. If a value is set greater than allowed, the instrument will automatically adjust it to the instrument maximum. Each type of carrier waveform has a different acceptable range:

The maximum allowable value is also affected by the following:

• The frequency deviation cannot be greater than the carrier frequency.

• The sum of frequency deviation and the carrier frequency cannot be greater than the maximum frequency of the selected carrier waveform plus 100 kHz; (50.1 MHz for sine;

25.1 MHz for square; 300 kHz for ramp; and 10.1 MHz for arbitrary waveforms).

Choosing the external source means the modulation is controlled by the specified frequency deviation and the ±5 V signal levels of the external waveform. When the external waveform is at

+5 V, the output will reach positive maximum frequency deviation. When the external waveform is at -5 V, the output will reach negative maximum frequency deviation.

To set up frequency modulation:


Section 4

,

Setup

Basics

for assistance.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-11



3. Press the soft key under Type; then press the soft key under FM to select frequency modulation (

Figure 5-12

). A frequency modulation output will be generated with the set parameters.

Figure 5-12:

Press the soft keys corresponding with FM





b) Press the soft key under FM / Freq. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit.

Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

5. Press the soft key under Freq / Dev (

Figure 5-12

). Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

To set up frequency modulation from a remote interface:





FM:INTernal:FUNCtion {SINusoid|SQUare|RAMP|NRAMp|TRIangle|NOISe|USER}

FM:INTernal:FREQuency {<frequency>|MINimum|MAXimum}

FM:DEViation {<peak deviation in Hz>|MINimum|MAXimum }

FM:SOURce {INTernal|EXTernal}

FM:STATe {OFF|ON}

Phase modulation

Phase modulation allows the phase of the carrier waveform to vary with the modulating waveform.




Table 4-1 : Waveform function frequency ranges

for details.



5-12

Return to

Section Topics

3390-900-01 Rev. C / January 2009











Phase deviation

The phase deviation represents the peak variation in the phase of the modulation output, based on that of the carrier waveform. The range of the phase deviation is from 0º to 360º, and the default is 180º.

Choosing the external source means the modulation is controlled by the specified phase deviation and the ±5 V signal levels of the external waveform. When the external waveform is at +5 V, the output will reach maximum positive phase deviation. When the external waveform is at -5 V, the output will reach maximum negative phase deviation.

To set up phase modulation:


Section 4

,

Setup

Basics

for assistance.

3. Press the soft key under Type; then press the soft key under PM to select phase modulation

( Figure 5-13 ). A phase modulation output will be generated with the set parameters.

Figure 5-13:

Press the soft keys corresponding with PM





b) Press the soft key under PM / Freq. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

5. Press the soft key under Phase / Dev ( Figure 5-13 ). Use the navigation wheel with the

cursor keys to change the value, and then press another soft key to finish the entry and exit.

Or use the numeric keypad to enter a desired value and then press the soft key under deg to finish the entry, or the soft key under Cancel to cancel the changes.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-13



To set up phase modulation from a remote interface:





PM:INTernal:FUNCtion {SINusoid|SQUare|RAMP|NRAMp|TRIangle|NOISe|USER}

PM:INTernal:FREQuency {<frequency>|MINimum|MAXimum}

PM:DEViation {<deviation in degrees>|MINimum|MAXimum }

PM:SOURce {INTernal|EXTernal}

PM:STATe {OFF|ON}

Frequency-shift keying modulation

Frequency-shift keying (FSK) modulation allows the frequency of the carrier waveform to shift between two discrete frequencies (the carrier frequency and the hop frequency). The shifting rate is determined by the modulating signal.


The default carrier waveform is sine. You can also choose square, ramp and arbitrary waveforms.


Table 4-1 : Waveform function frequency ranges

for details.



The default source is internal, and the internal modulating waveform is a square waveform with a

50% duty cycle.

Select the external modulating source to modulate the carrier waveform with an external signal present at the Trig In/Out, FSK / Burst connector on the rear panel.

Hop frequency

The default frequency is 100 Hz. Each waveform has a different acceptable range:

5-14

Choosing the external source means the modulation is controlled by the signal levels of the external waveform. When the external waveform is at the logic "low" level, the output is at the carrier frequency. When the external waveform is at the logic "high" level, the output is at the hop frequency.

FSK rate

The FSK rate is the rate at which the output frequency shifts between the carrier frequency and the hop frequency when internal source is selected. The default FSK rate is 10 Hz and the range is from 2 mHz to 100 kHz.

Return to

Section Topics

3390-900-01 Rev. C / January 2009




To set up FSK modulation:


Section 4

,

Setup

Basics

for assistance.

3. Press the soft key under Type; then press the soft key under FSK to select FSK modulation

( Figure 5-14 ). An FSK modulation output will be generated with the set parameters.

Figure 5-14:

Press the soft keys corresponding with FSK



Figure 5-14 ). If internal source is selected, press the soft

key under FSK / Rate. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

5. Press the soft key under Hop / Freq. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

To set up FSK modulation from a remote interface:





FSKey: FREQuency {<frequency>|MINimum|MAXimum}

FSKey:INTernal:RATe {<rate in Hz>|MINimum|MAXimum }

FSKey:SOURce {INTernal|EXTernal}

FSKey:STATe {OFF|ON}

Pulse width modulation waveform

Pulse Width Modulation (PWM) allows the pulse width of the carrier waveform to vary with the modulating waveform. The pulse width can be specified in either time units or duty cycle.


Pulse is the carrier waveform. The default period for the carrier pulse is 1 ms and the acceptable range is 100 ns to 200 s.





3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-15







• Arbitrary waveform (limited to 4 K points with automatic decimation)


Width deviation

The width deviation represents the peak variation in the pulse width of the modulation output based on that of the original carrier waveform. The range of the width deviation is from 0 s to

1000 s, and the default is 10 μs.

The deviation cannot be greater than the pulse width of the carrier waveform, and has the following constraints:

WidthDeviation

≤

PulseWidth - Wmin

WidthDeviation

≤

Period - (PulseWidth + Wmin)

Where: Wmin is the minimum pulse width as described in the

Pulse waveform section.

Choosing the external source means the modulation is controlled by the specified width deviation and the ±5 V signal levels of the external waveform. When the external waveform is at +5 V, the output will reach the maximum pulse width. When the external waveform is at -5 V, the output will reach the minimum pulse width.

To set up PWM:

this publication. Refer to Section 4 , Setup Basics

for assistance.





b) Press the soft key under PWM / Freq. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

Figure 5-15:

Press the soft keys corresponding with PWM

5-16

4. Press the soft key under Width / Dev ( Figure 5-15 ). Use the navigation wheel with the

cursor keys to change the value, and then press another soft key to finish the entry and exit.

Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

Return to

Section Topics

3390-900-01 Rev. C / January 2009




To set up PWM from a remote interface:



PULSe:PERiod {<seconds>|MINimum|MAXimum}

FUNCtion:PULSe:WIDTh {<seconds>|MINimum|MAXimum}

FUNCtion:PULSe:TRANsition {<seconds>|MINimum|MAXimum}

FUNCtion:PULSe:DCYCle{<percent>|MINimum|MAXimum}

PWM:INTernal:FUNCtion {SINusoid|SQUare|RAMP|NRAMp|TRIangle|NOISe|USER}

PWM:INTernal:FREQuency {<frequency>|MINimum|MAXimum}

PWM:DEViation {<deviation in seconds>|MINimum|MAXimum}

PWM:DEViation:DCYCle {<deviation in percent>| MINimum|MAXimum}

PWM:SOURce {INTernal|EXTernal}

PWM:STATe {OFF|ON}

Frequency sweep

Frequency sweep allows a waveform to gradually step from one frequency to another at a specified rate. The waveform can sweep up or down in frequency with logarithmic or linear spacing. Sine, square, ramp, and arbitrary waveforms work with frequency sweep.

Sweep mode

The waveform generator has two sweep modes:

• Linear: The frequency steps with spacing calculated in a linear function.

• Logarithmic: The frequency steps with spacing calculated in a logarithmic function.

The default sweep mode is linear.

Setting frequency sweep range

You may specify start and stop frequency settings, or a center frequency and frequency span.

Start frequency and stop frequency

The waveform generator sweeps from the start frequency to the stop frequency. The instrument will sweep down when the start frequency is greater than the stop frequency. The instrument will sweep up when the stop frequency is greater than the start frequency.

The default start frequency is 100 Hz and the default stop frequency is 1 kHz. The allowable range is 1 μHz to 50 MHz for sine; 1 μHz to 25 MHz for square; 1 μHz to 200 kHz for ramp; and 1 μHz to

10 MHz for arbitrary waveforms.

Center frequency and frequency span

The waveform generator sweeps from the center frequency through the distance of the frequency span. Set a positive frequency span for sweeping up and a negative frequency span for sweeping down.

The default center frequency is 550 Hz. The allowable range is 1 μHz to 50 MHz for sine; 1 μHz to

25 MHz for square; 1 μHz to 200 kHz for ramp; and 1 μHz to 10 MHz for arbitrary waveforms. The default frequency span is 900 Hz. The allowable range of the frequency span is dependent on center frequency setting and waveform selection.

Sweep time

The sweep time is the period of time (in seconds) required to sweep from the start frequency (or center frequency) to the stop frequency (or the endpoint of the frequency span). The number of

3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-17



discrete frequency points is calculated by the waveform generator according to the sweep time specified. The default sweep time is 1 second, and the range is from 1 ms to 500 s.

Marker frequency

Marker frequency controls the sync signal that is output from the front panel Sync connector. The default marker frequency is 500 Hz and the range of the marker frequency is dependent on stop frequency setting or frequency span setting. The marker frequency must be less than or equal to the maximum output frequency.

Performing a sweep with an enabled marker frequency (selected in Hz), starts the sync signal at transistor-transistor logic (TTL) "high" at the beginning of the sweep and turns it to "low" at the marker frequency. For sweeps with Marker Off, the Sync signal is a square waveform with a 50% duty cycle. The Sync signal is at TTL "high" at the beginning of a sweep and turns to "low" at the midpoint of the sweep. The frequency of the Sync signal is the reciprocal of the specified sweep time.

Trigger source

The waveform generator outputs a single sweep when it receives a trigger signal, and it continues delivering the same type of waveform with the start frequency before it receives the next trigger and sends another sweep.

Trigger source can be internal, external, or manual. The default is internal.

The trigger sources perform as follows:

• Internal trigger source: The waveform generator continuously delivers sweeps at the specified sweep time.

• External trigger source: The trigger signal is a TTL pulse with specified polarity applied to the Trig In/Out connector on the rear panel. The trigger period cannot be less than 1 ms plus the specified sweep time.

• Manual trigger source: The waveform generator sends out a sweep each time the Trigger key on the front panel is pressed.

Trigger out signal

A trigger out signal is delivered at the Trig In/Out, FSK / Burst connector on the rear panel.

Trigger out signals perform as follows:

• Internal trigger source: A square waveform with 50% duty cycle is delivered at the Trig Out connector with the sweep output.

• Manual trigger source: A pulse is delivered (with pulse width > 1 μs) at the Trig Out connector at the beginning of each sweep.

To set up frequency sweep:


Section 4

,

Setup

Basics

for assistance.

3. Press the soft key under Linear / Log to choose between linear or logarithmic mode

( Figure 5-16 ).

5-18

Return to

Section Topics

3390-900-01 Rev. C / January 2009



Figure 5-16:

Press the soft keys corresponding with frequency sweep


4. Select a start frequency and a stop frequency, or select a center frequency and a frequency span:

• Start and stop frequency: Press the soft key under Start / Cntr to specify a start frequency (ensure Start is highlighted,

Figure 5-16

). Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes. Press the soft key under Stop / Span to specify a stop frequency. Follow the same value entry procedures.

• Center frequency and frequency span: Press the soft key under Start / Cntr to specify a center frequency (ensure Cntr is highlighted). Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

Press the soft key under Stop / Span to specify a span frequency. Follow the same value entry procedures.

5. Press the soft key under Sweep / Time. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

6. Press the soft key under Mkr to toggle between Freq and OFF. Use the navigation wheel with the cursor keys to enter a frequency value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

7. Press the soft key under Trig / Setup to configure the trigger setting ( Figure 5-17 ). Press

the soft key under Src to select among Int (internal), Ext (external), or Man (manual) for the trigger source.

• Internal or manual source: Press the Trig / Out soft key, then select among OFF, risingedge, or falling edge trigger.

• External source: Press the Slope soft key, then select rising edge or falling edge trigger.

Figure 5-17:

Press the soft keys corresponding with trigger setting

8. Press the Graph key to view the waveform parameters in the graph mode.

To set up frequency sweep from a remote interface:

SWEep:SPACing {LINear|LOGarithmic}

SWEep:TIME {<seconds>|MINimum|MAXimum}

FREQuency:STARt {<frequency>|MINimum|MAXimum}

FREQuency:STOP {<frequency>|MINimum|MAXimum}

FREQuency:CENTer {<frequency>|MINimum|MAXimum}

3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-19



FREQuency:SPAN {<frequency>|MINimum|MAXimum}

MARKer:FREQuency {<frequency>|MINimum|MAXimum}

MARKer {OFF|ON}

SWEep:STATe {OFF|ON}

Use this command to specify the trigger source:

TRIGger:SOURce {IMMediate|EXTernal|BUS}

Use this command to specify whether the sweep is triggered on the rising or the falling edge:

TRIGger:SLOPe {POSitive|NEGative}

Use the following commands to configure the Trig Out signal:

OUTPut:TRIGger:SLOPe {POSitive|NEGative}

OUTPut:TRIGger {OFF|ON}

Burst operation

The burst operation generates a selected waveform with a specified number of cycles (a burst).

Bursts can be triggered internally or manually. Bursts can also be triggered (or gated) externally by a signal applied to the Trig In/Out, FSK / Burst connector on the rear panel. Sine, ramp, pulse, square, and arbitrary waveforms can be generated in both triggered and gated burst modes. Noise can be generated only in the gated burst mode.

Burst mode

You can select triggered or gated burst mode.

Table 5-1 presents the modes and the parameters

affecting each:

• Triggered burst mode: This mode generates a waveform with a specified number of cycles

(burst count) each time it receives a trigger. When the specified number of cycles is generated, the instrument pauses and waits for next trigger. You can choose to trigger the bursts using internal source, manual press of the trigger key, external signal at the Trig In/

Out, FSK / Burst connector on the rear panel, or software trigger through the remote

interface (refer to Section 7 , Remote Programming for details). Triggered burst mode is the

default burst mode.

• Gated burst mode: In gated burst mode, the length of a burst is determined by the voltage level of the external signal applied at the Trig In/Out, FSK / Burst connector on the rear panel. When the external signal is logic true, the waveform generator outputs a continuous waveform. When the gate signal is logic false, the output waveform remains at the same voltage level as the starting burst phase of the selected waveform. The output stops immediately following a noise burst when the gate signal becomes logic false.

Table 5-1:

Parameters for each burst mode

Burst mode Burst phase Burst count Burst period

External trigger signal polarity

Triggered mode

Gated mode

Internal

External and

Manual

X

X

X

X

X

X

X

5-20

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Burst phase

Burst phase defines the starting phase of a burst. The default is 0º and the range is from -360º to

+360º. You can set the burst phase in degrees from the front panel; however, degrees and radians are both available through remote interface operation.

For sine, square, and ramp waveforms, 0º is the point at which the waveform crosses zero volt, or the DC offset, when ascending. For arbitrary waveform, it is the first waveform point specified.

In gated burst mode, when the gate signal turns false, the waveform generator will complete the current waveform and then stop. At this point, the output will remain at the same voltage level as the starting burst phase.

Burst count

The burst count represents the number of cycles in each burst and is only applicable in triggered burst mode. The default burst count is 1 cycle, and the range is from 1 to 50,000 cycles in single-cycle increments. You can also set an infinite burst count.

NOTE

If a new burst count is specified when the instrument is in gated mode, the instrument will store the new count and implement it when a triggered mode is selected.

Burst Period

The burst period represents the time interval between the start times of two consecutive bursts. It is only applicable in the internally triggered burst mode. The default burst period is 10 ms and the range is from 1 μs to 500 seconds.

Waveform frequency

The waveform frequency defines the frequency of the output waveform when trigger signal is logic true. In triggered mode, the specified number of cycles is delivered at the waveform frequency. In gated mode, the waveform frequency is delivered when the external gate signal is logic true.

The default waveform frequency is 1 kHz. The range is from 1 μHz to 200 kHz for ramp; 1 μHz to

25 MHz for square; 1 μHz to 10 MHz for pulse and arbitrary; and 1 μHz to 50 MHz for sine waveforms. The minimum frequency is 2.001 mHz for internally triggered burst mode. For sine and square waveforms, frequencies greater than 10 MHz are permitted only when an infinite burst count is set.

Trigger source

Trigger source can be internal, external or manual.

The trigger sources perform as follows:

• Internal trigger source: Internal trigger source delivers bursts repeatedly at a rate determined by the specified burst period, which represents the time interval between the start times of two consecutive bursts. The burst count must be less than the product of the burst period and the waveform frequency:

Burst Count < Burst Period x Waveform Frequency

3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-21



If the burst period is set too short, the instrument automatically adjusts it to the shortest value (up to its maximum) that can accommodate the specified burst count and waveform frequency:

Burst period > (Burst Count ÷ Waveform Frequency) + 200 ns

• External trigger source: External trigger source delivers a burst each time a TTL pulse with specified polarity is received at the Trig In/Out connector on the rear panel. The instrument ignores any trigger signals received during the output of a burst. Burst period is not applicable.

• Manual trigger source: Manual trigger source delivers a burst with each press of the

Trigger key. Burst period is not applicable.

Trigger out signal

The instrument can be set to deliver a trigger out signal at the Trig In/Out connector on the rear panel. This signal can be enabled when the instrument is set for internal or manual triggered burst mode, and it is synchronized with the burst output.

Trigger out signals perform as follows:

• Internal trigger source: A square waveform with 50% duty cycle is delivered at the Trig

Out connector at the beginning of the burst.

• Manual trigger source: A pulse is delivered (with pulse width > 1 µs) at the Trig Out connector at the beginning of each sweep.

To set up burst output:

1. Select the carrier waveform (Sine, Square, Ramp, or Arb. Noise is permitted in gated burst mode only). Follow the instructions for setting up that specific waveform as given in this publication. Refer to

Section 4

,

Setup Basics

for assistance.

3. Press the soft key under N Cyc / Gated to choose between the triggered and external gated

modes ( Figure 5-18 ). Ensure your selection is highlighted.

Figure 5-18:

Press the soft keys corresponding with trigger selection (internal triggering shown)

5-22 a) Press the soft key under #Cyc / Inf to choose between finite and infinite burst count:

• Finite burst count: Ensure that #Cyc is highlighted. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under Cyc to finish the entry, or the soft key under Cancel to cancel the changes.

• Infinite burst count: Ensure that Inf is highlighted. The display will automatically highlight the Start / Phase selection. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under Deg to finish the entry, or the soft key under Cancel to cancel the changes.

Return to

Section Topics

3390-900-01 Rev. C / January 2009




b) Press the soft key under Trig / Setup to configure the trigger setting ( Figure 5-18 ).

Press the soft key under Src to select among Int (internal), Ext (external), or Man

(manual) for the trigger source.

• Internal trigger source: Press the Trig / Out soft key, then select among OFF, rising-edge, or falling edge trigger. Press the soft key under Burst / Perd. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under the desired units to finish the entry, or the soft key under Cancel to cancel the changes.

• External trigger source: Press the Slope soft key, then select rising edge or falling

edge trigger ( Figure 5-19 ).

• Manual trigger source: Press the Trig / Out soft key, then select among OFF, rising-edge, or falling edge trigger.

c) Press the soft key under Done to finish the trigger setting.

Figure 5-19:

Press the soft keys corresponding with trigger slope

• External gated burst mode: a) Press the soft key under Polar to choose between Neg and Pos for the polarity of the external signal (

Figure 5-20 ).

b) Press the soft key under Start / Phase. Use the navigation wheel with the cursor keys to change the value, and then press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under Deg to finish the entry, or the soft key under Cancel to cancel the changes.

Figure 5-20:

Press the soft keys corresponding with gated burst c) Press the Graph key to view the waveform parameters in the graph mode

To set up burst operation from a remote interface:

FUNCtion {SINusoid|SQUare|RAMP|PULSe|USER}


BURSt:MODE {TRIGgered|GATed}

BURSt:GATE:POLarity { NORMal|INVerted }

BURSt:NCYCles {<#cycles>|INFinity|MINimum|MAXimum}

BURSt:INTernal:PERiod {<seconds>|MINimum|MAXimum}

BURSt:PHASe {<angle>|MINimum|MAXimum}

UNIT:ANGLe {DEGree|RADian}

TRIGger:SOURce {IMMediate|EXTernal|BUS}

TRIGger:SLOPe {POSitive|NEGative}

OUTPut:TRIGger:SLOPe {POSitive|NEGative}

OUTPut:TRIGger {OFF|ON}

BURSt:STATe {OFF|ON}

3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-23



Pattern output operation

Pattern output allows you to specify a pattern of up to 256k points in 16-bit resolution. Similar to arbitrary waveforms, pattern output provides five built-in patterns and up to four user-defined patterns that are stored in nonvolatile memory. The built-in patterns are exponential-rise, exponential-fall, negative-ramp, sinc, and cardiac. The default pattern output is an exponential-rise waveform.

You can import waveforms captured with an oscilloscope, or create a custom pattern with the

KiWAVE™ waveform and pattern editor software provided with the instrument. Refer to Section 7 ,

KiWAVE™ software installation for software installation instructions.

To set up pattern output:

2. Press the soft key under PATT / Mode to access the pattern menu.

3. Press the soft key under Fclk / Perd ( Figure 5-21 ) to choose between frequency (Fclk) and

period (Perd). Refer to Section 4 , Setup Basics

for assistance.

Figure 5-21:

Setting frequency or period for pattern output

4. Press the soft key under Start / Addr to specify a start point for the pattern output

( Figure 5-22 ). Use the navigation wheel with the cursor keys to change the value, and then

press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under Enter to finish the entry, or the soft key under Cancel to cancel the changes.

Figure 5-22:

Setting start address for pattern output

5. Press the soft key under End / Addr to specify an end point for the pattern output

( Figure 5-23 ). Use the navigation wheel with the cursor keys to change the value, and then

press another soft key to finish the entry and exit. Or use the numeric keypad to enter a desired value and then press the soft key under Enter to finish the entry, or the soft key under Cancel to cancel the changes.

Figure 5-23:

Setting end address for pattern output

5-24

6. Press the soft key under Output / Setup.

a) Press the soft key under RPT. to choose between ON and OFF ( Figure 5-24

).

Select ON to enable the repeat output of the pattern.

b) Press the soft key under CLK to select rising edge or falling edge.

c) Press the soft key under Done to finish the selection.

Return to

Section Topics

3390-900-01 Rev. C / January 2009



Figure 5-24:

Setting repeat on or off for pattern output


7. Press the soft key under Select / Wform to access the waveform menu. Press the soft keys to select among Built / In, Saved / Wform (saved waveform), or Delete / Saved

( Figure 5-25 ).

• Press the soft key under Built / In and choose from the five built-in patterns by pressing the corresponding soft key.

• Press the soft key under Saved / Wform and choose the desired user-defined pattern by pressing the corresponding soft key.

• Press the soft key under Delete / Saved to delete a user-defined pattern. Choose the pattern to be deleted and press the corresponding soft key.

Figure 5-25:

Selecting waveform for pattern output

8. Press the soft key under Trig / Setup to configure the trigger setting. Press the soft key under Src to select Ext (external) or Man (manual) for the trigger source.

• Manual source: Press the Trig Out soft key, then select among OFF, rising-edge, or falling edge trigger.

( Figure 5-26 ).

Press the soft key under Done to finish the trigger setting.

Figure 5-26:

Selecting slope for pattern output

To set up pattern output operation from a remote interface:

FUNCtion:PATTern {data name}

FUNCtion:PATTern?

DIGital:PATTern:FREQuency {<frequency>, MINimum, MAXimum}

DIGital:PATTern:FREQuency? {MINimum, MAXimum}

DIGital:PATTern:STARt {<address>, MINimum, MAXimum}

DIGital:PATTern:STARt? {MINimum, MAXimum}

DIGital:PATTern:STOP {<address>, MINimum, MAXimum}

DIGital:PATTern:STOP? {MINimum, MAXimum}

DIGital:PATTern:REPeat {OFF|ON}

DIGital:PATTern:REPeat?

DIGital:PATTern:CLOCk {POSitive|NEGative}

DIGital:PATTern:CLOCk?

DIGital:PATTern:TRIGger:SOURce {EXTernal|BUS}

DIGital:PATTern:TRIGger:SOURce?

3390-900-01 Rev. C / January 2009

Return to

Section Topics


5-25



DIGital:PATTern:TRIGger:SLOPe {POSitive|NEGative}

DIGital:PATTern:TRIGger:SLOPe?

DIGital:PATTern:OUTPut:TRIGger {OFF|ON}

DIGital:PATTern:OUTPut:TRIGger?

DIGital:PATTern:OUTPut:TRIGger:SLOPe {POSitive|NEGative}

DIGital:PATTern:OUTPut:TRIGger:SLOPe?

DATA:PATTERN VOLATILE, <binary block>

Pattern generator cable

Your Model 3390 was shipped with one pattern generator cable (005-003-00003). This cable should be used when generating a pattern output function. Refer to Figures

5-27

,

5-28 and 5-29

for additional information.

Figure 5-27:

Pattern generator cable

Figure 5-28:

Socket pin out structure

Figure 5-29:

Connector pin out structure

5-26

Return to

Section Topics

3390-900-01 Rev. C / January 2009


Section 6

System Operations


Topic

Introduction .............................................................................................

Instrument system operations .................................................................

Storing the instrument state ............................................................

Controlling the display .....................................................................

Controlling the error beep ...............................................................

Controlling the system sound ..........................................................

Performing self-test .........................................................................

Page

6-2

6-2

6-2

6-4

6-4

6-4

6-5


Section 6: System Operations


Introduction

The Model 3390 can store up to five instrument states. You can also control the front display screen, control the sound, and perform test and calibration operations.

Instrument system operations

Storing the instrument state

The Model 3390 has five storage locations in nonvolatile memory for storing instrument state. The stored instrument state holds all the parameters for the selected function, including the waveform, frequency, DC offset, amplitude, duty cycle, symmetry, modulation type, and modulation parameters.

The first location, indexed at "0," is automatically assigned for instrument state at power off and can only be accessed from the remote interface. Any information stored in this location during operation will be overwritten when the instrument is turned off.

You may assign a custom name to any of these locations from the remote interface. The name can contain up to 12 characters; the first character must be a letter and the rest can be numbers, letters, or the underscore character (_). You cannot assign a name for location "0" from the front panel.

To store or recall the instrument state:

Press the Store / Recall key to access the instrument state menu (

Figure 6-1 ). You can choose to

store a state, recall a state, delete a state, or set a power-up state. You can also restore the

instrument to the factory default state (refer to Section 4 ,

Restoring factory default settings

for details).

Figure 6-1:

Press the Store / Recall key to access the instrument state menu

To store a state:

1. Press the soft key under Store / State to access the store / state menu.

2. Press the soft key under your desired location number (1 through 4 are available from the front panel).

3. Enter a name for the selected memory location. Use the numeric keypad and the navigation

wheel with the cursor keys ( Figure 6-2

).

to cancel the entry.

Figure 6-2:

Enter the name for the selected memory location

6-2

Return to

Section Topics

3390-900-01 Rev. C / January 2009




To store a state from a remote interface:

*SAV {0|1|2|3|4}

MEMory:STATe:NAME {0|1|2|3|4} [,<name>]

To recall a state:

1. Press the soft key under Recall / State to access the recall / state menu.

2. Press the soft key under your desired location number to recall the state from that memory location (

Figure 6-3

).

3. Press soft key to recall the selected state, or press the Cancel soft key to cancel the entry.

Figure 6-3:

Select the desired memory location for recall

To recall a state from a remote interface:

*RCL {0|1|2|3|4}

To set a power-up state:

1. Press the soft key under PwrON / Def to access the power-up menu.

2. Press the soft key under your desired location number to choose the state from that memory location (1 through 4 are available from the front panel. You can also select

State / Def to set the power-up state to the default settings.

To delete the instrument state:

1. Press the soft key under Del / State to access the delete state menu.

2. Press the soft key under your desired location number to delete the state from that memory location (

Figure 6-4

).

3. Press soft key to delete the selected state, or press the Cancel soft key to cancel the entry.

Figure 6-4:

Select the desired memory location for deletion

To delete a state from a remote interface:

MEMory:STATe:DELete {0|1|2|3|4}

3390-900-01 Rev. C / January 2009

Return to

Section Topics


6-3



Controlling the display

You can choose to turn off the front display screen for security reasons, or to speed up command execution from the remote interface. This option is possible through remote operation only. Error messages will display at all times.

The display is automatically enabled when the instrument is powered up, returned to local frontpanel operation, or the *RST (reset) command is issued.

The display setting may be saved with the *SAV command. When the instrument state is restored using the *RCL command, the display setting will return to the saved state.

To control the front display screen from a remote interface:

Use this command to turn off the front panel display:

DISP OFF

Use this command to display a message and turn the display back on:

DISP:TEXT 'message to display'

Use this command to clear the current message on display.

DISP:TEXT CLEar

Controlling the error beep

The Model 3390 beeps when an error is detected. This setting is stored in nonvolatile memory and remains after the instrument is turned off, or when the reset command is issued from remote operation.

To control the error beep: system menu.

is highlighted.

Controlling the system sound

The Model 3390 beeps with every keystroke. This setting is stored in nonvolatile memory and remains after the waveform generator is turned off, or when the reset command is issued from the remote operation.

To control the system sound: system menu.

is highlighted.

To control the system sound from a remote interface:

SYSTem:BEEPer:STATe {OFF|ON}

6-4

Return to

Section Topics

3390-900-01 Rev. C / January 2009



Performing self-test

You can perform a self-test on the Model 3390.

To access the self-test function: menu.


NOTE Press the Cal / Info soft key to view the most recent instrument calibration date.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


6-5




6-6

Return to

Section Topics

3390-900-01 Rev. C / January 2009


Section 7

Remote Programming


Topic

Remote interface operation .....................................................................

KiWAVE™ software installation .......................................................

USB interface ..................................................................................

IEEE-488 (GPIB) interface ..............................................................

LAN interface ..................................................................................

LXI™ function .................................................................................

Remote interface commands ..................................................................

Page

7-2

7-2

7-2

7-3

7-3

7-5

7-8


Section 7: Remote Programming


Remote interface operation

The Model 3390 supports universal serial bus (USB), local area network (LAN), and IEEE-488

(general purpose interface bus, GPIB) remote interfaces. This section describes the operations for setting up these remote interfaces.

KiWAVE™ software installation

You can use the Keithley Instruments KiWAVE program to remotely create and configure waveforms for the Model 3390.

To install the software:

NOTE You must have one of the following items installed on your computer: Keithley I/O Layer

7.0 or greater, or NI-VISA™ 3.2 or greater. Keithley I/O Layer 7.0 is included on the CD-

ROM that shipped with your instrument.

1. Load the CD-ROM that came with your Model 3390. Double-click the KIWave_setup.exe file.

3. Read the agreement and select I Agree.

4. Accept the default settings and select Next.

5. Accept the default pathway and select Install.

6. When the software installation is complete, select Finish.

7. When KiWAVE launches, it will search for Java™ on your system.

• If Java is found, KiWAVE will start.

• If Java is not found, your system will ask for permission to download Java from www.java.com. Select OK to proceed with the Internet download, or you can install Java from your Model 3390 CD-ROM. To install from the CD-ROM, select Cancel to exit

KiWAVE. Then open the CD-ROM and double-click the jre-6u7-windows-i586-p.exe file to install Java (accept all default settings).

NOTE For LAN and IEEE-488 interfaces, skip to step number 11 to complete this process. For

USB interfaces, proceed to step number 8.

8. Connect the USB cable between the Model 3390 and the USB port on your remote computer.

9. The "Found New Hardware Wizard" will launch, and you will see a dialogue box asking,

"Can Windows connect to Windows Update to search for software?" Select No, then select

Next .

10. "USB Test and Measurement device" will appear on the computer screen; select Next, then select Finish.

11. The icon for KiWAVE will appear on your desktop. Double-click this icon to launch the program.

USB interface

Connect the USB cable from the USB connector on the rear panel of the instrument to your computer. The waveform generator sets up the USB interface automatically once the cable is properly connected.

To verify the USB ID:

7-2

Return to

Section Topics

3390-900-01 Rev. C / January 2009




3. Press soft key to verify the USB interface ID.

4. Press the soft key under DONE to finish the entry.

IEEE-488 (GPIB) interface

Before setting up the GPIB interface, you must make the proper connections and installations:

1. Insert the GPIB interface card into the interface slot on the waveform generator's rear panel.

2. Install the Model 3390 application onto your PC, and then start the application.

3. Connect the waveform generator to your computer with the GPIB cable.

To set up the IEEE-488 (GPIB) interface:

3. Press the soft key under GPIB / Addr and enter a GPIB address using the numeric keypad or navigation wheel. The factory default GPIB address is 16, however it can be set to any number between 0 and 30. The address is stored in nonvolatile memory, so it is not affected by turning the instrument power off, or by receiving a remote interface reset command. The address you choose must be different than the address for the GPIB interface card in your computer.

4. Press the soft key under DONE to finish the entry.

LAN interface

The following parameters must be set before using the LAN interface. Contact your network administrator to obtain the LAN settings for your waveform generator.

IP address

An IP address is a unique identifier assigned to a device in the network. It is expressed in the dot notation: "nnn.nnn.nnn.nnn", where "nnn" is a byte value from 0 to 255. The value is stored in nonvolatile memory, so it is not affected by turning the instrument power off, or by receiving a remote interface reset command.

If dynamic host configuration protocol (DHCP) is used, the device will automatically obtain an IP address from the DHCP server in the network. If the device fails to get an IP address from a DHCP server, it will assign itself an IP address using Auto-IP. The IP address will be randomly chosen in the range from 169.254.0.0 to 169.254.255.255.

Subnet mask

Subnetting is used to divide a network so that the network traffic is evenly distributed and the administration process is simplified. The subnet mask represents the portion of the host address to be used to identify the subnet. For example, the subnet mask 255.255.255.0 for a host IP address

10.10.3.101 indicates that the host belongs to the subnet of hosts addressed from 10.10.3.1 to

10.10.3.254. The subnet mask setting is stored in nonvolatile memory so it is not affected by turning the instrument power off, or by receiving a remote interface reset command.

If DHCP is used, the device will automatically obtain a subnet mask from the DHCP server.

Default gateway

A gateway is a network device that provides connectivity between two networks. The default gateway setting is the IP address of the gateway to which the waveform generator is connected.

The value is stored in nonvolatile memory, so it is not affected by turning the instrument power off, or by receiving a remote interface reset command.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


7-3



If DHCP is used, the instrument will automatically obtain the IP address of the default gateway from the DHCP server.

Host name

Host name is the human-readable identifier for the device. Together with the domain name, the host name represents the device in the networks. Each character in the name can be a number, letter, dash (?), or underscore (_).

Domain name

A domain is an administrator for managing hosts in the networks. The name of a domain is in human-readable format. Each character in the name can be a number, letter, dash (-), or underscore (_).

Domains are structured in a hierarchy. Top domains are typically .edu, .com, and .org. A subdomain under a top domain generally represents an organization. The smallest domain is a host itself. For example, the domain "www.keithley.com" consists of a host name, "www," and two domains "keithley" and "com". The host name and names of its domains are linked with the period

(.) in the full domain name of the host.

DNS server

Domain name service (DNS) translates a domain name or a host name into an IP address. The

DNS server address is the IP address of the server that provides this service. The setting is stored in nonvolatile memory, so it is not affected by turning the instrument power off, or by receiving a remote interface reset command.

To set up the LAN interface:

3. Press the soft key under LAN to enter the LAN menu.

4. Press the soft key under Current / Conf to view the current LAN configuration.

To return the LAN settings to the default values:

To configure the IP setup:

NOTE To enable your Mode setting changes, you must power off and restart the instrument after setup is complete.

• Enables the instrument to seek DHCP availability.

• Manual (Man): Reveals the IP / Addr, Sub / Mask, and Def / Gate soft keys:

i.

IP address: Use the numeric keys to enter an IP address. Press the soft key under Enter to finish the entry, or the soft key under Cancel to cancel the changes.

ii. Subnet mask: Use the numeric keys to enter a subnet mask. Press the soft key under Enter to finish the entry, or the soft key under Cancel to cancel the changes.

7-4

Return to

Section Topics

3390-900-01 Rev. C / January 2009




iii. Default gateway: Use the numeric keys to enter a default gateway. Press the soft key under Enter to finish the entry, or the soft key under Cancel to cancel the changes.

• DONE soft key to return to the Modify / Set menu.

To configure the DNS setup (if applicable): b) Press the soft key under Host / Name to enter a host name. Use the navigation wheel with the cursor keys, or the numeric keypad to enter the name, and then press the soft key under DONE to finish the entry.

c) Press the soft key under Domain / Name to enter a domain name. Use the navigation wheel with the cursor keys, or the numeric keypad to enter the name and then press the soft key under DONE to finish the entry.

d) Press the soft key under DNS / Serv to enter a DNS server address. Use the navigation wheel with the cursor keys, or the numeric keypad to enter the address and then press the soft key under DONE to finish the entry.

To enter a password: navigation wheel with the cursor keys, or the numeric keypad to enter the information. b) Press the soft key under DONE to finish the entry

LXI™ function

The Model 3390 is designed to LAN extensions for instrumentation (LXI) Class C standards. Using your computer’s Ethernet port, the Model 3390 can be connected to your computer directly, or remotely through your LAN.

The LXI setup and online control of the Model 3390 is described in this section.

NOTE Before attempting the LXI setup, contact your network administrator for your specific network requirements.

LXI setup

Direct connection to a computer

For direct connection of the Model 3390, you need the following:

• Model 3390 Arbitrary Waveform Generator

• Computer with Ethernet interface

• One CAT5E crossover cable (shipped with your instrument)

To set up a connection between your Model 3390 and your computer:

1. Configure the IP address and subnet mask of the instrument. Refer to the

LAN interface

topic for details. Set the IP address to 10.1.1.1 and the subnet mask to 255.255.255.

2. Configure the IP address and subnet mask of your computer’s Ethernet interface. Set the IP address to 10.1.1.2 and the subnet mask to 255.255.255.0.

3. Connect one end of the CAT5E crossover cable to your Model 3390, and then connect the other end to your computer.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


7-5


7-6


4. Launch your web browser and enter the instrument’s IP address (http://10.1.1.1). The LXI

Web Interface – Welcome Page is displayed.

Network connection

For network connection of the Model 3390, you need the following:

• Model 3390 Arbitrary Waveform Generator

• Computer with Ethernet interface

• One standard CAT5E cable

• Ethernet switch or other Ethernet port

To set up a connection between your Model 3390 and a network:

Determine if your network uses a DHCP server to automatically assign an IP address, or if IP addresses are assigned manually (by your network administrator).

To set up using a DHCP server:

a. Set up the LAN interface. Refer to the LAN interface

topic for details. Ensure the Mode is set to Auto.

b. Connect one end of the CAT5E cable to your Model 3390. Then connect the other end to the network switch. The instrument will automatically connect to the network and obtain an IP address.

c. To view the IP address:

i.

Utility key.

iii. Press the soft key under LAN to enter the LAN menu.

iv. Press the soft key under Current / Conf to view the current LAN configuration.

To set up using a manual IP address:

a. Configure the IP address and subnet mask of the instrument. Refer to the LAN interface

topic for details.

b. Configure the IP address and subnet mask of your computer’s Ethernet interface.

c. Connect one end of the CAT5E cable to your Model 3390, and then connect the other end to the network switch. The instrument will automatically connect to the network.

d. Launch your web browser and enter the instrument’s IP address. The LXI Web Interface

– Welcome Page is displayed.

LXI web interface

Welcome Page

The LXI Web Interface – Welcome Page is the default launch page for your Model 3390. This page displays all of the LAN setup and model information for your instrument. IP information displayed

on this page can be modified. Refer to the IP Configuration topic for details.

Click the ID button to identify the instrument from the front panel. The front panel of the instrument will display “Web Identify.”

Web Control

The Web Control page allows you to control the device from a virtual interface. All keys and soft

keys have the same functionality as during front panel operation ( Figure 7-1

). Refer to Section 2 ,

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Front panel for a review of the front panel keys. Detailed setup and operation instructions for the

output functions can be found in

Section 4

,

Section 5

, and Section 6 of this manual.

You will be prompted to login from this page. It is only necessary to enter the password, and you can obtain the instrument’s password by following these steps:

3. Press the soft key under LAN to enter the LAN menu.

4. Press soft key to enter the Modify / Set menu. The password is displayed.

Click the Refresh button to refresh the web page with the instrument’s current state.

Figure 7-1:

LXI browser Web Control interface

IP Configuration

The IP Configuration page displays the current configuration of your instrument, and allows you to modify configuration details.

You must log into the web interface to make configuration changes. Refer to the Web Control topic

for login details.

Click the Modify button to access the modification page. After you have entered your changes, click the Submit button. To enable your changes, you must power the instrument off, and then restart it.

System Status

The System Status page displays various details regarding your system configuration. This page is for information only and cannot be changed.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


7-7



Print Display

The Print Display page allows you to print the information displayed in your web browser window.

Print preferences can be selected from the Print dialog box.

Help with this Page

Click Help with this Page to display specific help information for the LXI interface. Select a page, and then click Help with this Page for the associated help file. For example

, Figure 7-2 shows the

help page associated with the Web Control screen.

Figure 7-2:

LXI browser Web Control Help page

Remote interface commands

After the remote interface is set, you can output waveforms using the standard commands for programmable instruments (SCPI). Refer to

Appendix A , SCPI Command Reference for the

commands for this instrument.

7-8

Return to

Section Topics

3390-900-01 Rev. C / January 2009


Appendix A

SCPI Command Reference


Topic

SCPI commands .....................................................................................

Command format ....................................................................................

Command separators ..............................................................................

Using the MIN and MAX parameters .......................................................

Querying parameter settings ...................................................................

Command terminators .............................................................................

IEEE-488.2 common commands ............................................................

Parameter types ......................................................................................

Output data formats .................................................................................

SCPI status model ...................................................................................

Status register sets ..........................................................................

Status Byte Register and service request .......................................

Questionable Data Register ............................................................

Standard Event Register .................................................................

SCPI command summary .......................................................................

Page

A-5

A-6

A-7

A-7

A-8

A-8

A-2

A-2

A-2

A-3

A-3

A-3

A-3

A-4

A-9


Appendix A: SCPI Command Reference


SCPI commands

Standard commands for programmable instruments (SCPI) is an ASCII-based command language designed for testing and measurement instruments. SCPI is based on a hierarchical structure, also known as a tree system. In this system, associated commands are grouped together under a common root, and form subsystems. A portion of the system-related commands is shown as an example:

SYSTem:

ERRor?

BEEPer

BEEPer:

STATe

SYSTem

is the root keyword of the command; ERRor and BEEPer are second-level keywords; and

STATe

is a third-level keyword. A colon (:) separates the keyword levels.

Command format

Most commands (and some parameters) are expressed as a combination of upper- and lowercase letters. The upper-case letters indicate the letters that must be specified for the command.

For shorter program lines, send the abbreviated form. For better program readability, use the long form. For example, STAR and START are both acceptable forms of the same command. You may also mix upper- or lower-case letters in a command. For example, START, star, and Star are all acceptable forms of the same command. Other forms, such as STA will generate an error.

• Braces ( { } ) enclose parameter choices for a command string. The braces are not sent with the command.

• Vertical bars ( | ) separate multiple parameter choices for a command string.

• Triangle brackets ( < > ) indicate that you must specify a value for the enclosed parameter.

The brackets are not sent with the command string. You must specify a value for the parameter such as STAR 6000.

• Some parameters are enclosed in square brackets ( [ ] ). The brackets indicate that the parameter is optional and can be omitted. The brackets are not sent with the command string. If you do not specify a value for an optional parameter, the waveform generator uses the default value.

Command separators

A colon ( : ) is used to separate a command keyword from a lower-level keyword. You must insert a blank space to separate a parameter from a command keyword. If a command requires more than one parameter, you must use a comma between two parameters:

APPL:SIN 5 KHZ, 3.0 VPP, -2.5 V

A semicolon ( ; ) is used to separate commands within the same subsystem, and can reduce typing efforts. For example, sending the following command string:

BURSt:MODE TRIG; NCYCles 10 is the same as sending the following two commands:

BURSt:MODE TRIG

BURSt:NCYCles 10

Use a colon and a semicolon to link commands from different subsystems. For example, in the following command string, an error is generated if you do not use both the colon and semicolon:

BURSt:STATe ON;:TRIG:SOUR EXT

A-2

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Using the MIN and MAX parameters

You can use MINimum or MAXimum in place of a parameter for some commands. For example, see the following command:


Instead of specifying a specific frequency value, use MIN to set the frequency to its minimum value or MAX to set the frequency to its maximum value.

Querying parameter settings

You can query the current value of a parameter by adding a question mark ( ? ) to the command.

For example, the following command sets the start frequency to 5000 Hz:

FREQ:STAR 5000

You can query the start frequency:

FREQ:STAR?

You can also query the minimum or maximum start frequency allowed for the current waveform function:

FREQ:STAR? MIN

FREQ:STAR? MAX

NOTE

If you send two query commands without reading the response from the first, then when you attempt to read the response, you may receive some data from the first response followed by the complete second response. Typically, the unit gives a -410 Query Interrupted error. To avoid this error, do not send a query command without reading the response. When you cannot avoid this situation, send a device clear command before sending the second query command.

Command terminators

A command string sent to the Model 3390 must terminate with a "new line" character (<nl>). The

IEEE-488 end-or-identify (EOI) message is interpreted as a new line character and can be used to terminate a command string in place of a new line character. A carriage return (<cr>) followed by a <nl> is also accepted. A command string terminator will reset the current SCPI command path to the root level.

IEEE-488.2 common commands

The IEEE Standard 488.2 defines a set of common commands that perform reset, self-test, and status operations. Common commands begin with an asterisk ( * ), are four to five characters in length, and may include one or more parameters (

Table A-1 ). The command keyword is separated

from the first parameter by a blank space. Use a semicolon ( ; ) to separate multiple commands:

Table A-1:

IEEE-488.2 Common commands

Command

*CLS

*ESE <value>

Description

Clear the status structure.

Set the Standard Event register mask.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


A-3



Table A-1:

IEEE-488.2 Common commands

Command

*ESE?

*ESR?

*IDN?

*LRN?

*OPC

*OPC?

*PSC 0

*PSC 1

*PSC?

*RCL <value>

*RST

*SAV <value>

*SRE <value>

*SRE?

*STB?

*TRG

*TST?

*WAI

Description

Read the Standard Event enable register.

Read the Standard Event event register.

Read the instrument’s Identification string.

Read the instrument’s Learn string (current settings).

Set the Operation Complete Bit when all pending actions are completed.

Read the status of the Operation Complete Bit.

Save the contents of the Enable Register through power off and on.

Clear the contents of the Enable Register through power off and on.

Read the Power On status clear setting.

Recall the complete instrument setting from memory.

Reset the instrument to factory default settings.

Save the complete instrument setting to memory.

Set the Service Request Enable mask.

Read the Service Request Enable mask.

Read the Status Byte Register.

Trigger the instrument.

Start the instrument self-test.

Wait until all pending actions are complete.

Parameter types

The SCPI language defines several different data formats to be used in program messages and response messages.

Numeric parameters: Commands that require numeric parameters will accept all commonly used decimal representations of numbers including optional signs, decimal points, and scientific notation. Special values for numeric parameters such as MINimum, MAXimum, and DEFault are also accepted. You can also send engineering unit suffixes with numeric parameters (MHz or kHz).

If specific numeric values are necessary, the waveform generator will automatically round the input numeric parameters. The following example has a numeric parameter option:


Discrete parameters: Discrete parameters are used in the settings where only a limited number of values (BUS, IMMediate, EXTernal) are accepted. They have short and long forms and you can mix upper- and lower-case letters. Query responses will return the short form in all upper-case letters. The following example has a discrete parameter:

TRIGger:SOURce {BUS|IMMediate|EXTernal}

Boolean parameters: A Boolean parameter represents a condition that is either true or false. For a false condition, the instrument accepts "OFF" or "0" as the parameter value. For a true condition, the instrument accepts "ON" or "1" as the parameter value. When you query a Boolean parameter, the instrument will return "0" or "1." The following example has a Boolean parameter:

SWEep:STATe {OFF|ON}

String parameters: A string parameter can contain any set of ASCII characters. A string must begin and end with matching angle brackets. You can include the quote delimiter as part of the string by typing it twice without any characters in between. The following example has a string parameter:

DISPlay:TEXT <quoted string>

A-4

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Output data formats

Output data will be in one of formats shown ( Table A-2 ):

Table A-2:

Output data formats

Type of output data

Non-reading queries

Single reading

Multiple readings

Output data format

< 80 ASCII character string

(IEEE-488)SD.DDDDDDDDESDD<nl>

(IEEE-488)SD.DDDDDDDDESDD,...,...,<nl>

S

: Negative sign or positive sign

D

: Numeric digits

E

: Exponent

<nl>

: New line character

<cr>

: Carriage return character

3390-900-01 Rev. C / January 2009

Return to

Section Topics


A-5



SCPI status model

The SCPI status model shows the structure of the various registers used by the Model 3390

(

Figure A-1 ). These registers record conditions of the instrument and allow you to monitor and

manipulate events. The core of the model is the Status Byte Register.

Figure A-1:

Model 3390 status model

Questionable Data Register

C

12

13

14

15

8

9

10

11

6

7

4

5

2

3

0

1

Voltage overload

Loop unlocked

Calibration error

External reference

EV

12

13

14

15

8

9

10

11

6

7

4

5

2

3

0

1

EN

< 1 >

< 2 >

< 4 >

< 8 >

< 16 >

< 32 >

< 64 >

< 128 >

< 256 >

< 512 >

< 1024 >

< 2048 >

< 4096 >

< 8192 >

< 16384 >

NOT USED

STAT:QUES:COND?

STAT:QUES:EVEN?

Logic

OR

STAT:QUES:ENAB<value>

STAT:QUES:ENAB?

Error Queue

SYST:ERR?

Output buffer

RQS

Status Byte Register

C

6

7

4

5

2

3

0

1

EN

< 1 >

< 2 >

< 4 >

< 8 >

< 16 >

< 32 >

< 128 >

Logic

OR

*STB?

*SRE<value>

*SRE?

Operation complete

Query error

Device error

Execution error

Command error

Power on

Standard Event Register

EV

6

7

4

5

2

3

0

1

EN

< 1 >

< 2 >

< 4 >

< 8 >

< 16 >

< 32 >

< 64 >

< 128 >

Logic

OR

*ESR? *ESE<value>

*ESE?

C = Condition Register

EV = Event Register

EN = Enable Register

A-6

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Status register sets

Condition register: Contains the current status of the hardware and firmware, is continuously updated, and is not latched or buffered. Condition registers are read-only.

Event register: Latches transition events from the condition register. Event registers are cleared by reading, by query command, or with the *CLS command. Event registers are read-only, and bits are not buffered, so subsequent events are not recorded.

Enable register: Defines which bits in an event register are included in the Logic OR, and entered into the summary bit. These bits are then reported to the Status Byte Register. Enable registers are read-write and are not affected by *CLS or querying.

Status Byte Register and service request

The Status Byte Register summarizes the information from all other status groups. The summary bit for the Status Byte Register is located in Bit 6, request for service (RQS). When RQS is set, it generates a service request (SRQ) on the IEEE-488 bus.

The Status Byte Register is read using a serial poll sequence or with the *STB? query. An SRQ is enabled by setting the associated bit in the Service Request Enable Register with the *SRE command. This register can be read using the *SRE? query.

Clear the Status Byte condition register by reading an event register from another group, or with a

*CLS

(clear status) command. Clear the Status Byte enable register with an *SRE 0 command.

You can also set the instrument to clear the enable register using the *PSC 1 command; the instrument will clear the enable register at power up.

Bits in the Status Byte Register are summarized in Table A-3 .

Table A-3:

Status Byte register

Bit

6

7

4

5

2

3

0

1

Decimal value

4

8

1

2

16

32

64

128

Description

Not used (always 0).


Error queue stores one or more errors.

Questionable Data Register contains one or more bits.

Output buffer contains available message (data).

Standard Event Register contains one or more bits.

Status Byte Register contains one or more bits.


3390-900-01 Rev. C / January 2009

Return to

Section Topics


A-7



A-8

Questionable Data Register

The Questionable Data Register reports information regarding possible instrument problems

(

Table A-4 ). The Questionable Data Register is enabled by using the STAT:QUES:ENAB

<value>

command. Refer to

Figure A-1 for condition register, event register, and enable register

queries.

Clear the Questionable Data event register by querying the register, or with a *CLS (clear status) command. Clear the Questionable Data enable register with the *STAT:PRES command or the

*STAT:QUES:ENAB 0

command. The instrument will also clear this enable register at power up.

Table A-4:

Questionable Data register

Bit

12

13

14

15

8

9

10

11

6

7

4

5

2

3

0

1

Decimal value Description

256

512

1024

2048

4096

8192

16384

32768

4

8

1

2

16

32

64

128

Voltage overload on Output connector. Output is disabled.





Loop unlocked. Instrument frequency accuracy is affected.



Calibration error, calibration memory loss, or calibration is unsecured.

External time base reference is in use.







Standard Event Register

The Standard Event Register reports a number of occurrences including power up, errors, and the

*OPC command (

Table A-5 ). The Questionable Data Register is enabled by using the *ESE

<value>

command. Refer to

Figure A-1 for event register and enable register queries.

Clear the Standard Event event register by querying the register, or with a *CLS (clear status) command. Clear the Standard Event enable register with an *ESE 0 command. You can also set the instrument to clear the enable register using the *PSC 1 command; the instrument will clear the enable register at power up.

Table A-5:

Standard Event register

1

2

Bit

0

3

4

2

4

Decimal value

1

8

16

Description

Operation complete. All commands have completed including the previous commands, the

*OPC

command, and the overlapping commands.


Query error. Output buffer was empty, or previous query was not read before new command was received, or input and output buffers are full.

Device error. Device-specific error exists including self test or calibration.

Execution error exists.

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Table A-5:

Standard Event register

Bit

5

6

7

Decimal value

32

64

128

Description

Command syntax error exists.


Power has been turned off and on. Event register is cleared.

SCPI command summary

NOTE

The list of IEEE-488.2 Common Commands for the Model 3390 is in the IEEE-

488.2 common commands

section.

Table A-6:


APPLy commands

Command

APPLy

:SINusoid

:SQUare

:RAMP

:PULSe

:NOISe

:DC

:USER

Parameters Definition

[<frequency>]

[<amplitude>]

[<offset>]

[<frequency | DEF>]

[<amplitude>] [<offset>]

[<frequency | DEF>]

[<amplitude| DEF>]

[<offset>]

[<frequency>]

[<amplitude>] [<offset>]

See

Sine waveform

.

See

Square waveform

.

See

Ramp waveform

.

See

Pulse waveform .

See

Noise waveform

.

Output a DC voltage at the specified offset level.

Output an arbitrary waveform currently specified by the

FUNC:USER

command with the set frequency, amplitude, and offset.

Query the current configuration.

:APPLy?

Output configuration commands

Command

FUNCtion

FUNCtion?

FREQuency

FREQuency?


{SINusoid | SQUare | RAMP |

PULSe | NOISe | DC | USER}

{<frequency> | MINimum |

MAXimum}

[MINimum | MAXimum]

See

Sine waveform

,

Square waveform

,

Ramp waveform

,

Pulse waveform , Noise waveform

,

Amplitude modulation

,

Frequency modulation

,

Phase modulation

,

Frequency-shift keying modulation ,

Burst operation .

Query the current output function.

See

Sine waveform

,

Square waveform

,

Ramp waveform

,

Pulse waveform , Noise waveform

,


,


,

Phase modulation

,

Frequency-shift keying modulation ,

Burst operation .

Query the frequency setting for the current function.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


A-9


Table A-6:


VOLTage

VOLTage?

VOLTage

:OFFSet

:OFFSet?

:HIGH

:HIGH?

:LOW

:LOW?

:RANGe:AUTO

:RANGe:AUTO?

:UNIT

:UNIT?

FUNCtion

:SQUare:DCYCle

:SQUare:DCYCle?

:RAMP:SYMMetry

:RAMP:SYMMetry?

OUTPut

OUTPut?

OUTPut

:LOAD

:LOAD?

:POLarity

:POLarity?

:SYNC

:SYNC?

Pulse configuration commands

Command


{<amplitude> | MINimum |

MAXimum}

[MINimum | MAXimum]

See

Sine waveform ,

Square waveform

,

Ramp waveform

,

Pulse waveform

,

Noise waveform

,

Amplitude modulation ,


,

Phase modulation ,

Frequency-shift keying modulation

,

Pulse width modulation waveform

.

Query the output amplitude for the current function.

{<offset> | MINimum |

MAXimum}

[MINimum | MAXimum]

{<voltage> | MINimum |

MAXimum}

[MINimum | MAXimum]

{<voltage> | MINimum |

MAXimum}

[MINimum | MAXimum]

{OFF | ON | ONCE}

{Vpp | Vrms | dBm}

See

Sine waveform ,

Square waveform

,

Ramp waveform

,

Pulse waveform

,

Noise waveform

,

Amplitude modulation ,


,

Phase modulation ,

Frequency-shift keying modulation

,


.

Query the DC offset voltage for the current function.

See

Setting pulse high and low levels

.

Query the high voltage level.

See

Setting pulse high and low levels

.

Query the low voltage level.

See

Setting voltage auto ranging

.

Query the auto-ranging state.

See

Setting amplitude

.

Query the output amplitude units.

{<percent> | MINimum |

MAXimum}

[MINimum | MAXimum]


MAXimum}

[MINimum | MAXimum]

{OFF | ON}

{<ohms> | INFinity |

MINimum | MAXimum}

[MINimum | MAXimum]

{NORMal | INVerted}

{OFF | ON}

See

Square waveform

.

Query the current duty cycle percentage.

See

Ramp waveform .

Query the current symmetry setting percentage.

See

Controlling the output signal .

Query the on/off state of the Output connector.

See

Setting output termination

.

Query the current load setting in ohms.

See

Setting waveform polarity

.

Query the waveform polarity.

See

Controlling the sync signal

.

Query the on/off state of the Sync connector.


A-10

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Table A-6:


PULSe

:PERiod

:PERiod?

FUNCtion

:PULSe:HOLD

:PULSe:HOLD?

:PULSe:WIDTh

:PULSe:WIDTh?

:PULSe:DCYCle

:PULSe:DCYCle?

:PULSe:TRANsition

:PULSe:TRANsition?

Arbitrary waveform commands

Command

FUNCtion USER

FUNCtion?

DATA VOLATILE,

DATA

:DAC VOLATILE

:COPY

:CATalog?

:NVOLatile:CATalog?

:NVOLatile:FREE?

:ATTRibute:AVERage?

:ATTRibute:CFACtor?

:ATTRibute:POINts?

:ATTRibute:PTPeak?

FORMat

:BORDer

FUNCtion

:USER

:USER?

Amplitude modulation commands

{<seconds> | MINimum |

MAXimum}

[MINimum | MAXimum]

{WIDTh | DCYCle}

[WIDTh | DCYCle]


MAXimum}

[MINimum | MAXimum]


MAXimum}

[MINimum | MAXimum]


MAXimum}

[MINimum | MAXimum]

See

Pulse waveform

,


.

Query the period of the pulse waveform.

See

Pulse waveform .

Query the value of the pulse width or duty cycle being held.

See

Pulse waveform ,


.

Query the pulse width.

See

Pulse waveform ,


.

Query the pulse duty cycle.

See

Pulse waveform ,


.

Query the edge time.


Output the waveform currently specified by the

FUNC:USER

command.

Query the current selection of the

FUNC:USER

command.

See

Arbitrary waveform .

<value>, <value>…

{<binary block> | <value>,

<value>…}

<destination arb name>,

[VOLATILE]

[<arb name>]

[<arb name>]

[<arb name>]

[<arb name>]

See


Copy the currently specified waveform to non-volatile memory.

Query for a list of all waveforms currently stored.

Query for a list of all waveforms currently stored in nonvolatile memory.

Query for a list of open storage slots in nonvolatile memory.

Query for the average of all data points for the specified waveform.

Query for the crest factor of all data points for the specified waveform.

Query for the number of points for the specified waveform.

Query for the peak-to-peak value of all data points for the specified waveform.

{NORMal|SWAPped}

See


{<arb name>|VOLATILE}

See


Query the currently selected arbitrary waveform.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


A-11



Table A-6:


Command

AM

:INTernal:FUNCtion


:INTernal:FUNCtion?

:INTernal:FREQuency

:INTernal:FREQuency?

:DEPTh

:DEPTh?

:SOURce

:SOURce?

:STATe

:STATe?


NRAMp | TRIangle | NOISe |

USER}

See


.


MAXimum}

Query the modulating function.

See


.

[MINimum | MAXimum]

{<depth in percent> |

MINimum | MAXimum}

Query the internal modulating frequency.

See


.

[MINimum | MAXimum]

{INTernal | EXTernal}

{OFF | ON}

Query the modulation depth.

See


.

Query the modulating source.

See


.

Query the on/off state of amplitude modulation.

Frequency modulation commands

Command

FM

:INTernal:FUNCtion


:INTernal:FUNCtion?

:INTernal:FREQuency


:DEViation

:DEViation?

:SOURce

:SOURce?

:STATe

:STATe?



USER}

See


.


See


.


MAXimum}

[MINimum | MAXimum]


See


.

{<peak deviation in Hz> |

MINimum | MAXimum}

[MINimum | MAXimum]


{OFF | ON}

Query the peak frequency deviation.

See


.


See


.

Query the on/off state of frequency modulation.

Phase modulation commands

Command

PM

:INTernal:FUNCtion


:INTernal:FUNCtion?

:INTernal:FREQuency


:DEViation



USER}

See

Phase modulation

.


MAXimum}


See

Phase modulation

.

[MINimum | MAXimum]

{<peak deviation in degrees> | MINimum |

MAXimum}


See

Phase modulation

.

A-12

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Table A-6:


:DEViation?

:SOURce

:SOURce?

:STATe

:STATe?

[MINimum | MAXimum]


{OFF | ON}

Query the phase deviation.

See

Phase modulation

.


See

Phase modulation

.

Query the on/off state of phase modulation.

Frequency-shift keying commands

Command

FSKey

:FREQuency


:FREQuency?

:INTernal:RATE

:INTernal:RATE?

:SOURce

:SOURce?

:STATe

:STATe?


MAXimum}

[MINimum | MAXimum]

{<rate in Hz> | MINimum |

MAXimum}

[MINimum | MAXimum]


{OFF | ON}

See

Frequency-shift keying modulation .

Query the hop frequency.

See


Query the frequency-shift keying rate.

See


Query the frequency-shift keying source.

See


Query the on/off state of frequency-shift keying.

Pulse width modulation commands

Command Parameters Definition

PWM

:INTernal:FUNCtion

:INTernal:FUNCtion?

:INTernal:FREQuency


:DEViation

:DEViation?

:DEViation:DCYCle

:DEViation:DCYCle?

:SOURce

:SOURce?

:STATe

:STATe?

Sweep commands

Command

FREQuency

:STARt



USER}

See


.


MAXimum}

Query the internal modulating function.

See


.

[MINimum | MAXimum]

{< deviation in seconds> |

MINimum | MAXimum}


See


.

[MINimum | MAXimum]

{< deviation in percent> |

MINimum | MAXimum}

Query the pulse width deviation.

See


.

[MINimum | MAXimum]


{OFF | ON}

Query the duty cycle deviation.

See


.


See


.

Query the on/off state of PWM.


:STARt?


MAXimum}

[MINimum | MAXimum]

See

Frequency sweep

.

Query the sweep start frequency.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


A-13



Table A-6:


:STOP

:STOP?

:CENTer

:CENTer?

:SPAN

:SPAN?

SWEep

:SPACing

:SPACing?

:TIME


MAXimum}

[MINimum | MAXimum]


MAXimum}

[MINimum | MAXimum]


MAXimum}

[MINimum | MAXimum]

See

Frequency sweep

.

Query the sweep stop frequency.

See

Frequency sweep

.

Query the sweep center frequency.

See

Frequency sweep

.

Query the sweep span frequency.

{LINear | LOGarithmic}


MAXimum}

[MINimum | MAXimum]

{OFF | ON}

See

Frequency sweep

.

Query the sweep spacing.

See

Frequency sweep

.

Query the sweep time.

See

Frequency sweep

.

Query the on/off state of sweep.

:TIME?

:STATe

:STATe?

TRIGger

:SOURce

:SOURce?

:SLOPe

:SLOPe?

OUTPut

:TRIGger:SLOPe

:TRIGger:SLOPe?

:TRIGger

:TRIGger?

MARKer

:FREQuency

{IMMediate | EXTernal |

BUS}

See

Frequency sweep

.

{POSitive | NEGative}


{OFF | ON}

Query the trigger source.

See

Frequency sweep

.

Query the trigger slope.

See

Frequency sweep

.

Query the edge for the trigger out signal.

See

Frequency sweep

.

Query the on/off state of trigger out.

:FREQuency?

MARKer

MARKer?


MAXimum}

[MINimum | MAXimum]

{OFF | ON}

See

Frequency sweep

.

Query the marker frequency.

See

Frequency sweep

.

Query the on/off state of the frequency marker.

Burst commands

Command

BURSt

:MODE

:MODE?

:NCYCles

:NCYCles?

:INTernal:PERiod

:INTernal:PERiod?

:PHASe


{TRIGgered | GATED}

{<# cycles> | INFinity |

MINimum | MAXimum}

[MINimum | MAXimum]


MAXimum}

[MINimum | MAXimum]

{<angle> | MINimum |

MAXimum}

[MINimum | MAXimum]

See

Burst operation

.

Query the burst mode.

See

Burst operation

.

Query the burst count.

See

Burst operation

.

Query the burst period.

See

Burst operation

.

Query the burst starting phase.

:PHASe?

A-14

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Table A-6:


:STATe

:STATe?

:GATE:POLarity

:GATE:POLarity?

UNIT

:ANGLe

:ANGLe?

TRIGger

:SOURce

:SOURce?

:SLOPe

:SLOPe?

OUTPut

:TRIGger:SLOPe

:TRIGger:SLOPe?

:TRIGger

:TRIGger?

Pattern commands

Command

FUNCtion

:PATTern

:PATTern?

DIGital

:PATTern:FREQuency

:PATTern:FREQuency?

:PATTern:STARt

:PATTern:STARt?

:PATTern:STOP

:PATTern:STOP?

:PATTern:REPeat

:PATTern:REPeat?

:PATTern:CLOCk

:PATTern:CLOCk?

:PATTern:TRIGger:

SOURce

:PATTern:TRIGger:

SOURce?

:PATTern:TRIGger:

SLOPe

:PATTern:TRIGger:

SLOPe?

Parameters

{OFF | ON}

{NORMal | INVerted}

{DEGree | RADian}

See

Burst operation

.

Query the on/off state of the burst mode.

See

Burst operation

.

Query the logic levels at the Ext Trig connector (

NORM

is true high).

See

Burst operation

.

Query the unit of the starting phase for the burst.

{IMMediate | EXTernal |

BUS}

See

Burst operation

.


Query the trigger source.

See

Burst operation

.

Query the trigger slope.


{OFF | ON}

See

Burst operation

.

Query the edge for the trigger out signal.

See

Burst operation

.

Query the on/off state of trigger out.

Definition

{data name}

See

Pattern output operation

.

Query the file name of the pattern.


MAXimum}

[MINimum | MAXimum]

{<address> | MINimum |

MAXimum}

[MINimum | MAXimum]

{<address> | MINimum |

MAXimum}

[MINimum | MAXimum]

{OFF | ON}


See


.

Query the minimum or maximum frequency of the pattern.

See


.

Query the start address of the pattern.

See


.

Query the end address of the pattern.

See


.

Query the on/off state of the pattern mode.

See


.

Query the edge for the data clock.

See


.

{EXTernal | BUS}

Query the trigger source of the pattern.

See


.


Query the edge for the trigger slope.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


A-15



Table A-6:


:PATTern:OUTPut:

TRIGger

:PATTern:OUTPut:

TRIGger?

:PATTern:OUTPut:

TRIGger:SLOPe

:PATTern:OUTPut:

TRIGger:SLOPe?

DATA

:PATTERN VOLATILE

Trigger commands

Command

{OFF | ON}


<binary block>

See


.

Query the on/off state of the trigger.

See


.

Query the edge for the output trigger slope.

See


.

NOTE All other trigger commands are included in the applicable Sweep or Burst section.


TRIGger

*TRG

State storage commands

Command Parameters

Issue a trigger from the remote interface.

Issue a trigger from the remote interface.

Definition

*SAV

*RCL

MEMory

:STATe:NAME

:STATe:NAME?

:STATe:DELete

:STATe:RECall:AUTO

:STATe:RECall:AUTO?

:STATe:VALid?

:NSTates?

{0|1|2|3|4}

{0|1|2|3|4}

{0|1|2|3|4} [<name>]

{0|1|2|3|4}

{0|1|2|3|4}

{OFF | ON}

{0|1|2|3|4}

See

Instrument system operations .

See

Instrument system operations

.

See


.

Query the name of the specified storage location.

See


.

Enable or disable automatic recall of the power-down state from the “0” location

when power is turned on. See Default settings

.

Query the on/off state of automatic recall of the power-down state.

See


Query the number of available state storage locations.

System-related commands

Command

NOTE

All other system-related commands are included in the applicable IEEE-488.2 common commands

section.


DISPLay

DISPLay?

DISPlay

:TEXT

:TEXT?

{OFF | ON}

<quoted string>

See


.

Query the on/off state of the display.

See


Query the message sent to the front panel display.

See


:TEXT:CLEar

SYSTem

:ERRor?

Query and clear one error from the error queue.

A-16

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Table A-6:


:VERSion?

:BEEPer

:BEEPer:STATe

:BEEPer:STATe?

:KLOCk[:STATe]

:KLOCk:EXCLude

:KLOCk:EXCLude?

:SECurity:IMMediate

{OFF | ON}

{OFF | ON}

{NONE | LOCal}

Query the instrument’s current SCPI version.

Issue a single beep tone.

See


Query the on/off state of the system sound.

Disable or enable the front panel key lock.

Choose to include or exclude the Local key when locking the front panel keys.

Query if Local key is included or excluded when locking the front panel keys.

Clear all memory except startup parameters and calibration constants.

Reset all settings to their

*RST

values.

Interface configuration commands

Command

SYSTem

:COMMunication:

RLSTate

Phase-lock commands

Command

{LOCal | REMote | RWLock}

Set the instrument state to local, remote, or remote with lock.


PHASe

PHASe?

PHASe

:REFerence

:UNLock:ERRor:STATe

:UNLock:ERRor:STATe?

{<angle> | MINimum |

MAXimum}

[MINimum | MAXimum]

{OFF | ON}

See


.

Query the phase offset value.

See

10 MHz Out and In connectors .

See


.

Query the on/off state of the unlock error setting.

UNIT

:ANGLe

:ANGLe?

{DEGree | RADian}

See

10 MHz Out and In connectors .

Query the phase offset value.

Status reporting commands

Command

NOTE All other status reporting commands are included in the applicable

IEEE-488.2 common commands

section.


STATus

:PREset

:QUEStionable:

CONDition?

:QUEStionable:

ENABle

:QUEStionable:

ENABle?

:QUEStionable

[:EVENt]?

Parameters

<enable value>

Definition

See

Questionable Data Register

.

Query the condition register.

See

Questionable Data Register

.

Query the enable register.

Query the event register.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


A-17




A-18

Return to

Section Topics

3390-900-01 Rev. C / January 2009


Appendix B

Error Messages


Topic

Introduction .............................................................................................

Error message definitions .......................................................................

Page

B-2

B-2


Appendix B: Error Messages


Introduction

Error messages are issued when an incorrect command is sent to the Keithley Instruments Model

3390 Arbitrary Waveform Generator. Error messages are stored in an error queue and can be retrieved in the first-in-first-out (FIFO) order.

If more than 20 errors exist, the last error stored in the queue (the most recent error) is replaced with -350, Queue Overflow. Additional errors are not saved until errors are read and cleared from the queue.

The error queue is cleared with power off and on, or a *CLS (clear status) command.

Error messages are categorized and listed in this section for your reference (see

Error message definitions ). If you cannot find a particular error message in this section, contact your service

representative.

To read error messages:

2. Use the up and down soft keys to scroll through the selections until View remote command error is highlighted.

3. Press the soft key under Select to display the error messages.

4. Press the soft key under DONE to exit the error display.

Remote interface operation:

Use this command to read one error from the error queue:

SYSTem:ERRor?

Use this command to clear all the errors in the error queue:

*CLS

Error message definitions

Table B-1:

Command errors

Error code

-101 Invalid character

-102 Syntax error

-103 Invalid separator

-105 GET not allowed

-108 Parameter not allowed

-109 Missing parameter

-112 Program mnemonic too long

-113 Undefined header

-123 Exponent too large

-124 Too many digits

-128 Numeric data not allowed

-131 Invalid suffix

-138 Suffix not allowed

B-2

Description

An invalid character was detected in the command string.

Invalid syntax was detected in the command string.

An invalid separator was detected in the command string.

GET

is not valid in a command string.

Received more parameters than expected.

Received fewer parameters than expected.

Received more characters than allowed in the command header.

An invalid command was received.

Detected a numeric parameter with an exponent larger than 32,759.

Detected a numeric parameter with too many digits.

A numeric parameter was received when the instrument was expecting a string parameter.

A suffix was incorrectly specified for a numeric parameter.

A suffix is not supported for this command.

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Table B-1:

Command errors

Error code

-148 Character data not allowed

-151 Invalid string data

-158 String data not allowed

-161 Invalid block data

-168 Block data not allowed

-170 to -178 Expression errors

Description

A discrete parameter was received when it was not expected.

An invalid character string was received.

A character string was received when it was not permitted for this command.

For a definite-length block, the number of bytes of data sent does not match the number of bytes specified in the block header.

This command does not accept the data format.

Mathematical expressions are not acceptable for the instrument.

Table B-2:

Execution errors

Error code

-211 Trigger ignored

-221 Settings conflict; turned off infinite burst to allow immediate trigger source

-221 Settings conflict; infinite burst changed trigger source to BUS

-221 Settings conflict; burst period increased to fit entire burst

-221 Settings conflict; burst count reduced to fit entire burst

-221 Settings conflict; triggered burst not available for noise

-221 Settings conflict; amplitude units changed to Vpp due to high-Z load

-221 Settings conflict; trigger output disabled by trigger external

-221 Settings conflict; trigger output connector used by burst gate

-221 Settings conflict; trigger output connector used by FSK

-221 Settings conflict; trigger output connector used by trigger external

-221 Settings conflict; frequency reduced for user function

Description

A

GET

or

*TRG

trigger was received, but the trigger was ignored.

An infinite burst count command can only be sent from a remote interface.

An infinite burst count command can only be sent from a remote interface.

The specified number of cycles in the

BURS:NCYC command takes priority over the burst period. The instrument increased the burst period to accommodate the burst count or the waveform frequency.

The burst period is currently at its maximum. The waveform generator adjusted the burst count to accommodate the waveform frequency.

Noise function is not permitted in the triggered burst mode.

dBm is not available as a unit when the output termination is set to high impedance.

When accepting an external trigger source, the Trig

Out signal is automatically disabled.

If you have enabled burst and selected gated burst mode, the Trig Out signal is automatically disabled.

If you have enabled FSK and are using the external trigger source, the Trig Out signal is automatically disabled.

When accepting an external trigger source, the Trig

Out signal is automatically disabled.

The maximum output frequency for an arbitrary waveform is 10 MHz. When you change function from one allowing higher frequency to arbitrary waveform, the frequency is adjusted to 10 MHz.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


B-3


B-4


Table B-2:


Error code

-221 Settings conflict; frequency changed for pulse function

-221 Settings conflict; frequency reduced for ramp function

-221 Settings conflict; frequency made compatible with burst mode

-221 Settings conflict; burst turned off by selection of other mode or modulation

-221 Settings conflict; FSK turned off by selection of other mode or modulation

-221 Settings conflict; FM turned off by selection of other mode or modulation

Description

The maximum output frequency for a pulse waveform is 10 MHz. When you change function from one allowing higher frequency to pulse waveform, the frequency is adjusted to 10 MHz.

The maximum output frequency for a ramp waveform is 200 kHz. When you change function from one allowing higher frequency to ramp waveform, the frequency is adjusted to 200 kHz.

The minimum output frequency for an internallytriggered burst is 2.001 mHz. The waveform generator has adjusted the frequency to be compatible with the current setting.

Only one modulation can be enabled at one time.




-221 Settings conflict; AM turned off by selection of other mode or modulation

-221 Settings conflict; PM turned off by selection of other mode or modulation

-221 Settings conflict; PWM turned off by selection of other mode or modulation

-221 Settings conflict; sweep turned off by selection of other mode or modulation

-221 Settings conflict; not able to modulate this function




-221 Settings conflict; PWM only available in pulse function

-221 Settings conflict; not able to sweep this function

-221 Settings conflict; not able to burst this function

-221 Settings conflict; not able to modulate noise, modulation turned off

This waveform generator cannot generate an AM,

FM, PM, or FSK modulated waveform using the pulse, noise, or DC voltage function.

The waveform generator can only generate a PWM modulated waveform using the pulse function.

The waveform generator cannot generate a sweep using the pulse, noise, or DC voltage function.

The waveform generator cannot generate a burst using the DC voltage function.

The waveform generator cannot generate a modulated waveform using the noise function.

-221 Settings conflict; not able to sweep pulse, sweep turned off

-221 Settings conflict; not able to modulate dc, modulation turned off

-221 Settings conflict; not able to sweep dc, sweep turned off

The waveform generator cannot generate a sweep using the pulse function.

The waveform generator cannot generate a modulated DC voltage function.

The waveform generator cannot generate a sweep using the DC voltage function.

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Table B-2:


Error code

-221 Settings conflict; not able to burst dc, burst turned off

-221 Settings conflict; not able to sweep noise, sweep turned off

-221 Settings conflict; pulse width decreased due to period

-221 Settings conflict; pulse duty cycle decreased due to period

-221 Settings conflict; edge time decreased due to period

-221 Settings conflict; pulse width increased due to large period

-221 Settings conflict; edge time decreased due to pulse width

-221 Settings conflict; edge time decreased due to pulse duty cycle

-221 Settings conflict; amplitude changed due to function

-221 Settings conflict; offset changed on exit from dc function

-221 Settings conflict; FM deviation cannot exceed carrier

-221 Settings conflict; FM deviation exceeds max frequency

Description

The waveform generator cannot generate a burst using the DC voltage function.

The waveform generator cannot generate a sweep using the noise function.

With edge time at its minimum, the waveform generator has adjusted the pulse width to accommodate the specified period.

With edge time at its minimum, the instrument has adjusted pulse duty cycle to accommodate the specified period.

The edge time has been decreased to accommodate the period.

The instrument has adjusted the pulse width to accommodate the current period.

The waveform generator adjusts the edge time, then the pulse width or duty cycle, then the period (if needed) to accommodate the following: Edge Time

≤

0.625 x Pulse Width

. In this case, the edge time is decreased to accommodate the specified pulse width.

The waveform generator adjusts the edge time, then the pulse width or duty cycle, then the period (if needed) to accommodate the following: Edge Time

≤

0.625 x Period x Duty Cycle . In this case, the edge time is decreased to accommodate the pulse duty cycle.

When the new function chosen has smaller maximum amplitude, the waveform generator will automatically adjust the amplitude from the old value to the new, smaller maximum value. This may occur when the output units are V RMS or dBm because of the differences in crest factor for the various output functions.

In the DC voltage function, the voltage level is controlled by adjusting the offset voltage (the current amplitude is ignored). When you select a different function, the instrument will adjust the offset voltage as needed to be compatible with the current amplitude setting.

The frequency deviation cannot exceed the carrier frequency. The waveform generator will adjust the deviation to a maximum allowed value.

The sum of frequency deviation and the carrier frequency cannot be greater than the maximum frequency of the selected carrier waveform plus 100 kHz; (50.1 MHz for sine; 25.1 MHz for square; 300 kHz for ramp; and 10.1 MHz for arbitrary waveforms). If you set the carrier to a value that is not valid, the instrument will adjust the deviation to the maximum value allowed.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


B-5


B-6


Table B-2:


Error code

-221 Settings conflict; PWM deviation decreased due to pulse parameters

-221 Settings conflict; frequency forced duty cycle change

-221 Settings conflict; marker forced into sweep span

-221 Settings conflict; selected arb is missing, changing selection to default

-221 Settings conflict; offset changed due to amplitude

-221 Settings conflict; amplitude changed due to offset

-221 Settings conflict; low level changed due to high level

-221 Settings conflict; high level changed due to low level

-222 Data out of range; value clipped to upper limit

-222 Data out of range; value clipped to lower limit

-222 Data out of range; pulse edge time limited by period; value clipped to upper limit

-222 Data out of range; pulse width time limited by period; value clipped to...

-222 Data out of range; pulse duty cycle limited by period; value clipped to...

-222 Data out of range; large period limits minimum pulse width

-222 Data out of range; pulse edge time limited by width; value clipped to...

Description

The PWM deviation must follow the limitation concerning the pulse width or duty cycle, edge time, and period (see

Pulse width modulation waveform for

details). The waveform generator will adjust it automatically.

In the square wave function, if you change the frequency to a value that cannot produce the current duty cycle, the duty cycle will be automatically adjusted to the maximum value for the new frequency.

The marker frequency must be a value between the start and the stop frequency.

If you delete an arbitrary waveform after storing its instrument state, you will lose the waveform data and cannot generate the waveform. The built-in exponential-rise wave is generated instead.

When the existing offset voltage does not conform to the following limitation: |Voffset| + V peak-to-peak / 2

≤

Vmax , it is adjusted automatically to the maximum

DC voltage allowed with the specified amplitude.

When the existing amplitude does not conform to the following limitation: |Voffset| + V peak-to-peak / 2

≤

Vmax

, it is adjusted automatically to the maximum value allowed with the specified offset voltage.

The high level must always be greater than the low level. If you specify a high level that is smaller than the low level, the instrument will adjust the low level to be 1 mV less than the high level.

The high level must always be greater than the low level. If you specify a low level that is greater than the high level, the instrument will adjust the high level to be 1 mV greater than the low level.

The specified parameter is out of range and is adjusted to the maximum value allowed.

The specified parameter is out of range and is adjusted to the minimum value allowed.

The specified edge time does not conform within the existing period and is adjusted to the maximum value allowed.

The specified pulse width does not conform to the following condition and is adjusted to accommodate the period: Pulse Width

≤

Period – (1.6 x Edge

Time) .

The specified duty cycle does not conform to the following condition and is adjusted to accommodate the period: Duty Cycle

≤

(1 – 1.6 x Edge Time /

Period) x 100%

.

The minimum pulse width is larger (for pulse waveforms with a period larger than 10 s). Refer to

Pulse waveform

for details.

The specified pulse edge time does not conform to the following condition, and is adjusted to accommodate the pulse width: Edge Time

≤

0.625 x

Pulse Width .

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Table B-2:


Error code Description

-222 Data out of range; pulse edge time limited by duty cycle; value clipped to...

The specified pulse edge time does not conform to the following condition, and is adjusted to accommodate the duty cycle: Edge Time

≤

0.625 x

Period x Duty Cycle.

The pulse period is out of range and is adjusted.

-222 Data out of range; period; value clipped to...

-222 Data out of range; frequency; value clipped to...

-222 Data out of range; user frequency; value clipped to upper limit

-222 Data out of range; ramp frequency; value clipped to upper limit

-222 Data out of range; pulse frequency; value clipped to upper limit

The frequency is out of range and is adjusted.

The frequency is out of range and is adjusted to the maximum value allowed to accommodate the selected arbitrary waveform.

The frequency is out of range and is adjusted to the maximum value allowed to accommodate the selected ramp waveform.

The frequency is out of range and is adjusted to the maximum value allowed to accommodate the selected pulse waveform.

The burst period is out of range and is adjusted.

-222 Data out of range; burst period; value clipped to...

-222 Data out of range; burst count; value clipped to...

The burst count is out of range and is adjusted.

-222 Data out of range; burst period limited by length of burst; value clipped to lower limit

-222 Data out of range; burst count limited by length of burst; value clipped to upper limit

The burst period is too short to accommodate the burst count and frequency, and is adjusted to the minimum value allowed.

The burst count is out of range. When the immediate trigger source is selected, the burst count must be less than the product of the burst period and the waveform frequency.

The amplitude is out of range and is adjusted.

-222 Data out of range; amplitude; value clipped to...

-222 Data out of range; offset; value clipped to...

-222 Data out of range; frequency in burst mode; value clipped to...

-222 Data out of range; frequency in FM; value clipped to...

-222 Data out of range; marker confined to sweep span; value clipped to...

-222 Data out of range; pulse width; value clipped to...

-222 Data out of range; pulse edge time; value clipped to...

-222 Data out of range; FM deviation; value clipped to...

-222 Data out of range; FM deviation limited by minimum frequency

The offset voltage is out of range and is adjusted.

The frequency is adjusted, as indicated by the burst period.

The carrier frequency is adjusted to the lower boundary determined by the

FM:DEV

command.

The carrier frequency must be greater than or equal to the frequency deviation.

The specified marker frequency is out of range and is adjusted to the start or stop frequency, whichever is closer.

The desired pulse width is limited to the upper or lower boundary, as indicated by the instrument hardware.

The desired edge time is limited to the upper or lower boundary, as indicated by the instrument hardware.

The desired frequency deviation is limited to the upper or lower boundary set by the carrier frequency.

The frequency deviation is limited to the lower limit.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


B-7


B-8


Table B-2:


Error code

-222 Data out of range; FM deviation limited by maximum frequency; value clipped to upper limit

-222 Data out of range; PWM deviation

-222 Data out of range; PWM deviation limited by pulse parameters

-222 Data out of range; duty cycle; value clipped to...

-222 Data out of range; duty cycle limited by frequency; value clipped to upper limit

-223 Too much data

-224 Illegal parameter value

Description

The frequency deviation cannot exceed the carrier frequency.

The width deviation is permitted to be in the range of

0, and the width of the underlying pulse waveform.

The duty cycle deviation is in the range of 0, and the duty cycle of the underlying pulse waveform. This message indicates that either parameter is further limited by minimum pulse width and edge time parameters.

The PWM deviation (width or duty cycle) is adjusted to accommodate current pulse parameters such as pulse width/duty cycle, period, and edge time.

The square wave duty cycle is adjusted to within

20% to 80%.

The square wave duty cycle is adjusted to within

40% to 60% when the frequency is greater than

25 MHz.

An arbitrary waveform specified contains more than

65,536 points. Verify the number of points in the

DATA VOLATILE

or

DATA:DAC VOLATILE command.

An exact parameter value was expected.

Table B-3:

Device-dependent errors

Error code

-313 Calibration memory lost; memory corruption detected

-314 Save/recall memory lost; memory corruption detected

-315 Configuration memory lost; memory corruption detected

-350 Queue overflow

Description

A checksum error was detected in the nonvolatile memory (used to store calibration constant).

A checksum error was detected in the nonvolatile memory (used to store instrument states).

A checksum error was detected in the nonvolatile memory (used to store configuration settings).

More than 20 errors were found and the error queue is full.

Table B-4:

Query errors

Error code

-410 Query INTERRUPTED

-420 Query UNTERMINATED

-430 Query DEADLOCKED

Description

A command was received, but the output buffer contained data from a previous command (the previous data is lost).

A query command was sent to read the output buffer over the interface, but no such command that generates data to the output buffer was previously sent for execution.

An executed command generated too much data for the output buffer and the input buffer is also full. The command continues to execute but the data is lost.

Return to

Section Topics

3390-900-01 Rev. C / January 2009




Table B-4:

Query errors

Error code

-440 Query UNTERMINATED after indefinite response

Description

The

*IDN?

command must be the last query command within a series of commands in a command string.

Table B-5:

Instrument errors

Error code

501 Cross-isolation UART framing error

502 Cross-isolation UART overrun error

Description

Internal hardware failure.

580 Reference phase-locked loop is unlocked

The

PHAS:UNL:ERR:STAT

has been turned on and the internal phase-locked loop is currently unlocked.

Table B-6:

Self-test errors

Error code Description

621 Self-test failed; square-wave threshold DAC

A possible malfunctioning digital-to-analog converter

(DAC), failed DAC multiplexer channels, or associated circuitry.

623 Self-test failed; dc offset DAC

A possible malfunctioning DAC, failed DAC

624 Self-test failed; null DAC multiplexer channels, or associated circuitry.

625 Self-test failed; amplitude DAC

626 Self-test failed; waveform filter path select relay

627 Self-test failed; -10 dB attenuator path

628 Self-test failed; -20 dB attenuator path

The specified relay is not properly switched or the attenuator/amplifier does not provide the expected attenuation or gain. These self-tests use the internal analog-to-digital converter (ADC) to verify whether the output path relays, output amplifier (+20 dB), and output attenuators operate properly.

629 Self-test failed; +20 dB amplifier path

630 Self-test failed; internal ADC over-range; condition

631 Self-test failed; internal ADC measurement error

632 Self-test failed; square/pulse

DAC test failure

A probable ADC failure.

A probable ADC failure.

A probable failure of the square/pulse DAC.

Table B-7:

Arbitrary waveform errors

Error code

770 Nonvolatile arb waveform memory corruption detected

781 Not enough memory to store new arb waveform; use DATA:DELETE

Description

A checksum error was found in the nonvolatile memory (used to store arbitrary waveforms). The arbitrary waveform cannot be retrieved.

All nonvolatile memory locations are occupied. There is no room to store a new waveform.

3390-900-01 Rev. C / January 2009

Return to

Section Topics


B-9



Table B-7:

Arbitrary waveform errors

Error code

781 Not enough memory to store new arb waveform; bad sectors

782 Cannot overwrite a built-in waveform

784 Name of source arb waveform for copy must be VOLATILE

785 Specified arb waveform does not exist

Description

Storage hardware failure. New waveforms cannot be saved.

The five built-in waveform names (EXP_RISE,

EXP_FALL, NEG_RAMP, SINC, and CARDIAC) are reserved and cannot be used with

DATA:COPY command.

When using the

DATA:COPY

command, the chosen data source must be the volatile one.

Before using the

DATA:COPY

command to copy from the volatile memory, download the waveform to it using the

DATA VOLATILE

or

DATA:DAC

VOLATILE

command.

Deleting the built-in waveform is not allowed.

786 Not able to delete a built-in arb waveform

787 Not able to delete the currently selected active arb waveform

788 Cannot copy to VOLATILE arb waveform

Deleting the waveform that is currently active is not allowed.

800 Block length must be even

810 State has not been stored

You can only use

DATA:COPY

command to copy from volatile memory. You cannot copy to volatile memory.

The binary data is represented as 16-bit integers. It is sent in groups of two bytes (

DATA:DAC

VOLATILE

command).

The storage location specified in the

*RCL command was never used in previous *

SAV commands. You cannot recall instrument state from an empty storage location.

B-10

Return to

Section Topics

3390-900-01 Rev. C / January 2009


Appendix C

Application Programs


Topic

About application programs ....................................................................

Application examples ..............................................................................

Page

C-2

C-2


Appendix C: Application Programs


About application programs

This section provides several remote interface example programs which can be used as reference when creating user programs. Each example includes the list of applicable standard commands for programmable instruments (SCPI) and accompanying comments.

Application examples

To use the APPLy commands to configure the instrument for a sine waveform function:

Table C-1:

APPLy example commands

Command

*RST

*CLS

APPL:SIN 1000, 1, 0

Comment

Reset Model 3390.

Clear 3390 status registers.

Set sine to 1 KHz, 1V, 0V offset.

To set up the instrument to generate a service request (SRQ) using the status commands when a command error is received:

Table C-2:

SRQ example commands

Command

*RST

*CLS

*ESE 32

*SRE 32

APPL:SIN 1000, 1, 0

APPL:SAN 1000, 1, 0

*SRE?

Comment

Reset Model 3390.

Clear 3390 status registers.

Enable SRQ on error.

Enable SRQ.

Set sine to 1 KHz, 1V, 0V offset.

Command error, "SAN" vs. "SIN."

Query unit. Should display "+32."

To select amplitude modulation:

Table C-3:

Amplitude modulation example commands

Command

*RST

OUTPut:LOAD 50

FUNCtion:SHAPe SINusoid

FREQuency 6000; VOLTage 3

AM:INTernal:FUNCtion

AM:INTernal:FREQuency 300

AM:DEPTh 90

AM:STATe ON

OUTPut ON

*SAV 2

*RCL 2

Comment

Reset Model 3390.

Set output termination to 50 Ω .

Carrier shape is sine waveform.

Carrier frequency is 6 kHz at 3 V peak-to-peak.

Modulating shape is sine waveform.

Modulation frequency is 300 Hz.

Modulation depth is 90 %.

Turn amplitude modulation on.

Turn instrument output on.

Store state in memory location 2.

Recall the stored state from location (optional).

C-2

Return to

Section Topics

3390-900-01 Rev. C / January 2009




To select linear sweep:

Table C-4:

Linear sweep example commands

Command

*RST

FUNCtion SINusoid

OUTPut:LOAD 50

VOLTage 1

SWEep:SPACing LINear

SWEep:TIME 1

FREQency:STARt 100

FREQency:STOP 20e3

OUTPut ON

SWEep:STATe ON

Comment

Reset Model 3390.

Select sine waveform.

Set load impedance to 50 Ω .

Set the amplitude to 1 V peak-to-peak.

Set spacing to

LINear

or

LOGarithmic

.

Set sweep time to 1 s.

Set start frequency to 100 Hz.

Set stop frequency to 20 kHz.


Turn sweep function on.

To select pulse waveform:

Table C-5:

Pulse waveform example commands

Command

*RST

FUNCtion PULSe

OUTPut:LOAD 50

VOLTage:LOW 0

VOLTage:HIGH 0.75

PULSe:PERiod 1e-3

PULSe:WIDTh 100e-6

PULSe:TRANsition 10e-9

OUTPut ON

Comment

Reset Model 3390.

Select pulse waveform.

Set load impedance to 50 Ω.

Set the low level to 0 V.

Set the high level to 0.75 V.

Set period to 1 ms intervals.

Set pulse width to 100 µs intervals.

Set edge time to 10 ns intervals.


To select pulse width modulation:

Table C-6:

Pulse width modulation example commands

Command

*RST

OUTPut:LOAD 50

FUNCtion:SHAPe PULSe

FREQuency 5000

VOLTage:LOW 0

VOLTage:HIGH 5

FUNCtion:PULSe:DCYCle 35

PWM:INTernal:FUNCtion

TRIangle

PWM:INTernal:FREQuency 2

PWM:DEViation:DCYCle 15

PWM:SOURce INTernal

PWM:STATe ON

OUTPut ON

Comment

Reset 3390.

Set load impedance to 50 Ω.

Carrier shape is pulse waveform.

Carrier frequency is 5 kHz.

Set the low level to 0 V.

Set the high level to 5 V.

Set beginning duty cycle to 35 %.

Set modulating shape to triangle waveform.

Set modulation frequency to 2 Hz.

Set modulation depth to 15 %.

Set modulation signal to internal.

Turn pulse width modulation on.


3390-900-01 Rev. C / January 2009

Return to

Section Topics


C-3




C-4

Return to

Section Topics

3390-900-01 Rev. C / January 2009


Index

Numerics

A

B

C

D

E

10 MHz connectors

..................................3-2

Alphabetical entry

.....................................4-2

Amplitude

.................................................4-3

Amplitude modulation

...............................5-9

Application examples

.............................. C-2

Arbitrary waveform

...................................5-7

Burst key

..................................................2-5

Burst operation

.......................................5-20

Connections

IEEE-488

..........................................7-3

LAN

..................................................7-3

USB

..................................................7-2

Connector

Modulation In

....................................3-3

Connectors

10MHz

..............................................3-2

FSK / Burst

.......................................3-3

Modulation In

....................................3-3

Output

......................................2-4

,

4-7

Sync

.........................................2-4

,

4-7

Trig In/Out

........................................3-3

DC offset voltage

......................................4-4

Default settings

.........................................4-8

restore

..............................................4-9

Display

......................................................2-3

controlling

.........................................6-4

Entry

Alphabetical

......................................4-2

Numerical

.........................................4-2

Error messages

....................................... B-2

Errors arbitrary waveform

.......................... B-9

command

........................................ B-2

device-dependent

............................ B-8

execution

......................................... B-3

instrument

....................................... B-9

query

............................................... B-8

self-test

............................................ B-9

F

Features

................................................... 1-2

Frequency

................................................ 4-3

Frequency modulation

........................... 5-10

Frequency sweep

................................... 5-17

Frequency-shift keying modulation

........ 5-14

Front panel

............................................... 2-2

G

Graph/local key

........................................ 2-3

H

Handle

..................................................... 1-3

adjusting

.......................................... 1-4

adjustment

....................................... 1-3

removing

.......................................... 1-3

Help menu key

......................................... 2-4

I

IEEE-488 interface

................................... 7-3

Inspection

................................................ 1-2

Instrument state deleting

............................................ 6-3

recalling

........................................... 6-2

storing

.............................................. 6-2

K

Keys

Burst

................................................ 2-5

cursor

............................................... 2-3

Graph/Local

..................................... 2-3

Help menu

....................................... 2-4

Menu operation

................................ 2-3

Modulation

....................................... 2-5

Output

.............................................. 2-4

power

............................................... 2-3

Store/Recall menu

........................... 2-5

Sweep

.............................................. 2-5

Trigger

............................................. 2-4

Utility menu

...................................... 2-4

Waveform selection

......................... 2-5

KiWAVE

................................................... 7-2

L

LAN interface

........................................... 7-3

LXI function

.............................................. 7-5

M

Menu operation keys

................................ 2-3

Modulation

3390-900-01 Rev. C / January 2009


Index-1

Index amplitude

..........................................5-9

frequency

........................................5-10

phase

..............................................5-12

Modulation key

.........................................2-5

N

Noise waveform

........................................5-5

Numerical entry

........................................4-2

O

Output connector

......................................2-4

Output functions

.......................................4-2

Output key

................................................2-4

Output operations

.....................................5-2

Output termination

....................................4-5

P

Pattern output operation

.........................5-24

Period

.......................................................4-3

Phase modulation

...................................5-12

Ports

Digital Output (LVTTL)

.....................3-3

GPIB

.................................................3-3

LAN

..................................................3-3

USB

..................................................3-3

Power connection

.....................................1-5

Power key

.................................................2-3

Pulse levels

..............................................4-5

Pulse waveform

........................................5-5

Pulse width modulation waveform

..........5-15

R

Ramp waveform

.......................................5-4

Rear panel

................................................3-2

S

SCPI command format

............................. A-2

command separators

....................... A-2

command terminators

...................... A-3

commands

....................................... A-2

IEEE-488 commands

...................... A-3

output data

...................................... A-5

parameters

...................................... A-4

status model

.................................... A-6

SCPI commands

..............................A-2

,

A-9

Self-test

....................................................6-5

Sine waveform

..........................................5-2

Sound error beep

.........................................6-4

system

..............................................6-4

Square waveform

.....................................5-3

Store/Recall menu key

.............................2-5

Sweep key

................................................2-5

Sync output connector

..............................2-4

System operations

....................................6-2

T

Trigger key

................................................2-4


U

USB interface

........................................... 7-2

Utility menu key

........................................ 2-4

V

Ventilation

................................................ 1-6

Voltage auto ranging

................................ 4-6

W

Waveform polarity

.................................... 4-5

Waveform selection keys

......................... 2-5

Waveforms arbitrary

............................................ 5-7

noise

................................................ 5-5

pulse

................................................ 5-5

ramp

................................................. 5-4

sine

.................................................. 5-2

square

.............................................. 5-3

Index-2 3390-900-01 Rev. C / January 2009


Model No.

Name and Telephone No.

Company

Serial No.

List all control settings, describe problem and check boxes that apply to problem.

Service Form

Date

❏

Intermittent

❏

Analog output follows display

❏

Particular range or function bad; specify

❏

IEEE failure

❏

Obvious problem on power-up

❏

Batteries and fuses are OK

❏

Front panel operational

❏

All ranges or functions are bad

❏

Checked all cables

Display or output (check one)

❏

Drifts

❏

Unstable

❏

Overload

❏

❏

Unable to zero

Will not read applied input

❏

Calibration only

❏

Data required

❏

Certificate of calibration required

(attach any additional sheets as necessary)

Show a block diagram of your measurement system including all instruments connected (whether power is turned on or not). Also, describe signal source.

Where is the measurement being performed? (factory, controlled laboratory, out-of-doors, etc.)

What power line voltage is used?

Ambient temperature?°F

Relative humidity?

Other?

Any additional information. (If special modifications have been made by the user, please describe.)

Be sure to include your name and phone number on this service form.


12/06



Specifications are subject to change without notice.

All Keithley trademarks and trade names are the property of Keithley Instruments, Inc.

All other trademarks and trade names are the property of their respective companies.

A G R E A T E R M E A S U R E O F C O N F I D E N C E

Keithley Instruments, Inc.

Corporate Headquarters • 28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 • 1-888-KEITHLEY • www.keithley.com


12/06

No results