Instek AFG-21xx user manual

Instek AFG-21xx user manual

Arbitrary Function Generator

AFG-2000 Series

USER MANUAL

GW INSTEK PART NO. 82AF-21200EC1

ISO-9001 CERTIFIED MANUFACTURER

This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual may be photocopied, reproduced or translated to another language without prior written consent of Good Will Corporation.

The information in this manual was correct at the time of printing.

However, Good Will continues to improve its products and therefore reserves the right to change the specifications, equipment, and maintenance procedures at any time without notice.

Good Will Instrument Co., Ltd.

No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.

TABLE OF CONTENTS

Table of Contents

S AFETY INSTRUCTIONS .................................. 3

G ETTING STARTED ......................................... 8

Main Features ..................................................................... 8

Panel Overview .................................................................. 10

Setting up the Function Generator .................................... 16

Q UICK REFERENCE ....................................... 18

How to use the Digital Inputs ........................................... 19

Selecting a Waveform ........................................................ 21

ARB ................................................................................... 23

Modulation ........................................................................ 24

Sweep (2100 series only) ................................................... 28

Counter (2100 series only) ................................................ 30

Save/Recall ........................................................................ 31

Default Settings ................................................................ 32

O PERATION .................................................. 34

Select a Waveform ............................................................. 36

Setting the Frequency ........................................................ 36

Setting the Amplitude........................................................ 37

Setting the DC Offset ........................................................ 38

Setting the Duty Cycle/Symmetry ...................................... 39

Setting the Output Impedance .......................................... 41

Turning the Output On ...................................................... 42

Amplitude Modulation (AM) (AFG-2100 Series) ............... 43

Frequency Modulation (FM) (AFG-2100 Series) ................. 51

Frequency Shift Keying (FSK) Modulation (AFG-2100 Series)

.......................................................................................... 59

Frequency Sweep (AFG-2100 Series) .................................. 67

Creating an Arbitrary Waveform ......................................... 73

1

AFG-2000 Series User Manual

Using the Frequency Counter ............................................. 75

Using the SYNC Output Port ............................................. 77

Save and Recall State/ARB Waveform ................................ 81

R EMOTE INTERFACE ..................................... 83

Selecting the USB Remote Interface .................................. 85

Command Syntax ............................................................... 86

Command List ................................................................... 92

System Commands ............................................................ 94

Status Register Commands ................................................ 95

Apply Commands .............................................................. 96

Output Commands .......................................................... 102

Amplitude Modulation (AM) Commands ......................... 110

AM Overview ................................................................... 110

Frequency Modulation (FM) Commands .......................... 114

FM Overview ................................................................... 114

Frequency-Shift Keying (FSK) Commands ........................ 119

FSK Overview .................................................................. 119

Frequency Sweep Commands........................................... 123

Sweep Overview .............................................................. 123

Frequency Counter Commands ........................................ 128

Arbitrary Waveform Commands ....................................... 130

Arbitrary Waveform Overview .......................................... 130

Save and Recall Commands ............................................. 133

A PPENDIX ................................................... 135

Error Messages ............................................................... 135

AFG-2000 Series Specifications ....................................... 137

EC Declaration of Conformity .......................................... 141

I NDEX ......................................................... 142

2

SAFETY INSTRUCTIONS

S

AFETY INSTRUCTIONS

This chapter contains important safety instructions that should be followed when operating and storing the function generator. Read the following before any operation to ensure your safety and to keep the function generator in the best condition.

Safety Symbols

These safety symbols may appear in this manual or on the instrument.

WARNING

Warning: Identifies conditions or practices that could result in injury or loss of life.

CAUTION

Caution: Identifies conditions or practices that could result in damage to the function generator or to other objects or property.

DANGER High Voltage

Attention: Refer to the Manual

Protective Conductor Terminal

Earth (Ground) Terminal

DANGER Hot Surface

3

AFG-2000 Series User Manual

Double Insulated

Do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased.

Safety Guidelines

General

Guideline

CAUTION

Do not place heavy objects on the instrument.

Do not place flammable objects on the instrument.

Avoid severe impact or rough handling that may damage the function generator.

Avoid discharges of static electricity on or near the function generator.

Use only mating connectors, not bare wires, for the terminals.

The instrument should only be disassembled by a qualified technician.

Power Supply

WARNING

(Measurement categories) EN 61010-1:2010 specifies the measurement categories and their requirements as follows. The instrument falls under category II.

Measurement category IV is for measurement performed at the source of a low-voltage installation.

Measurement category III is for measurement performed in a building installation.

Measurement category II is for measurement performed on circuits directly connected to a low voltage installation.

Measurement category I is for measurements performed on circuits not directly connected to Mains.

AC Input voltage: 100 ~ 240V AC, 50 ~ 60Hz.

Connect the protective grounding conductor of the AC power cord to an earth ground to prevent electric shock.

4

SAFETY INSTRUCTIONS

Fuse

WARNING

Cleaning the function generator

Operation

Environment

Fuse type: F1A/250V.

Only qualified technicians should replace the fuse.

To ensure fire protection, replace the fuse only with the specified type and rating.

Disconnect the power cord and all test leads before replacing the fuse.

Make sure the cause of fuse blowout is fixed before replacing the fuse.

Disconnect the power cord before cleaning the function generator.

Use a soft cloth dampened in a solution of mild detergent and water. Do not spray any liquid into the function generator.

Do not use chemicals containing harsh products such as benzene, toluene, xylene, and acetone.

Location: Indoor, no direct sunlight, dust free, almost non-conductive pollution (Note below) and avoid strong magnetic fields.

Relative Humidity: < 80%

Altitude: < 2000m

Temperature: 0°C to 40°C

(Pollution Degree) EN 61010-1:2010 specifies pollution degrees and their requirements as follows. The function generator falls under degree 2.

Pollution refers to “addition of foreign matter, solid, liquid, or gaseous (ionized gases), that may produce a reduction of dielectric strength or surface resistivity”.

Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The pollution has no influence.

Pollution degree 2: Normally only non-conductive pollution occurs. Occasionally, however, a temporary conductivity caused by condensation must be expected.

Pollution degree 3: Conductive pollution occurs, or dry, nonconductive pollution occurs which becomes conductive due to condensation which is expected. In such conditions, equipment is normally protected against exposure to direct sunlight,

5

Storage environment

Disposal

AFG-2000 Series User Manual

 precipitation, and full wind pressure, but neither temperature nor humidity is controlled.

Location: Indoor

Relative Humidity: <

80%

Temperature: -10°C to 70°C

Do not dispose this instrument as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased. Please make sure discarded electrical waste is properly recycled to reduce environmental impact.

6

SAFETY INSTRUCTIONS

Power cord for the United Kingdom

When using the function generator in the United Kingdom, make sure the power cord meets the following safety instructions.

NOTE: This lead/appliance must only be wired by competent persons

WARNING: THIS APPLIANCE MUST BE EARTHED

IMPORTANT: The wires in this lead are coloured in accordance with the following code:

Green/ Yellow: Earth

Blue:

Brown:

Neutral

Live (Phase)

As the colours of the wires in main leads may not correspond with the coloured marking identified in your plug/appliance, proceed as follows:

The wire which is coloured Green & Yellow must be connected to the Earth terminal marked with either the letter E, the earth symbol or coloured

Green/Green & Yellow.

The wire which is coloured Blue must be connected to the terminal which is marked with the letter N or coloured Blue or Black.

The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or Red.

If in doubt, consult the instructions provided with the equipment or contact the supplier.

This cable/appliance should be protected by a suitably rated and approved

HBC mains fuse: refer to the rating information on the equipment and/or user instructions for details. As a guide, a cable of 0.75mm

2

should be protected by a 3A or 5A fuse. Larger conductors would normally require

13A types, depending on the connection method used.

Any exposed wiring from a cable, plug or connection that is engaged in a live socket is extremely hazardous. If a cable or plug is deemed hazardous, turn off the mains power and remove the cable, any fuses and fuse assemblies. All hazardous wiring must be immediately destroyed and replaced in accordance to the above standard.

7

AFG-2000 Series User Manual

G

ETTING STARTED

The Getting started chapter introduces the function generator’s main features, appearance and introduces a quick instructional summary of some of the basic functions. For comprehensive operation instructions, please see the operation chapter.

Main Features

Model name

AFG-2005 AFG-2105 AFG-2012 AFG-2112 AFG-2025 AFG-2125

Frequency Range 0.1Hz~5MHz 0.1Hz~12MHz 0.1Hz~25MHz

Output waveform Sine, Square, Ramp, Noise, ARB

Amplitude range

Variable Offset

Variable Duty

FM

FSK

Frequency Counter

SYNC

(TTL) output

Save/Recall

Sweep operation

AM

0.1Hz~20MHz

1 mVpp to 10 Vpp (into 50Ω)

2 mVpp to 20 Vpp (open-circuit)

20MHzHz~25MHz

1 mVpp to 5 Vpp (into 50Ω)

2 mVpp to 10 Vpp (open-circuit)

8

ARB

USB Interface

Performance

Features

Interface

GETTING STARTED

DDS technology using an FPGA provides high resolution waveforms

25MHz DDS (Direct Digital Synthesis) signal output series

0.1Hz resolution

Full Function Arbitrary Waveform Capability

20 MSa/s sample rate

10 MHz repetition rate

4 k-point waveform length

10-bit amplitude resolution

Ten 4k waveform memories

Sine, Square, Ramp, Noise

Int/Ext AM, FM, FSK modulation

Modulation/sweep signal output

Save/recall 10 groups of setting memories

Output overload protection

ARB (Arbitrary Waveform) can be edited with

PC software

USB interface as standard

3.5 inch LCD

9

AFG-2000 Series User Manual

Panel Overview

AFG-2105/2112/2125 Front Panel

LCD Display Number pad

Scroll Wheel Arrow keys SYNC output port

AFG-2125

Arbitrary Function Generator

Function keys

FUNC

FREQ

AMPL

7

4

8

5

9

6

OFST

DUTY

Point

Value

ARB

1 2 3

0

/

Enter

High-Z/50

OUTPUT

Save/Recall

Hz/Vpp

Shape

AM

INT/EXT kHz/Vrms

DEP/DEV

FM

Hop

MHz/dBm

Rate

FSK

LIN/LOG

%

Start/Stop

Sweep

Shift

Gate

Count

SYNC

MAIN

50 W

POWER

50

W

MAIN output port

Enter key

ARB keys Operation keys

Output control key

AFG-2005/2012/2025 Front Panel

Power button

LCD Display Number pad

Scroll Wheel Arrow keys SYNC output port

AFG-2025

Arbitrary Function Generator

Function keys

FUNC

7 8 9

FREQ

AMPL

OFST

DUTY

Point

4 5 6

1 2 3

0

/

Save/Recall

Hz/Vpp kHz/Vrms MHz/dBm

Enter

OUTPUT

% Shift

Value

ARB

SYNC

MAIN

50

W

POWER

50 W

MAIN output port

Enter key

ARB keys Operation keys

Output control key

Power button

10

LCD display

Keypad

Scroll Wheel

GETTING STARTED

3.5 inch, 3 color LCD display.

7

4

1

8

5

2

9

6

3

The digital keypad is used to enter values and parameters. The keypad is often used in conjunction with the selection keys and variable knob.

0

/

The scroll wheel is used to edit values and parameters in steps of

1 digit. Used in conjunction with the arrow keys.

Arrow keys

Output ports

Enter key

Power button

Output control key

Output

Impedance

Operation keys

SYNC

MAIN

50

W

Decrease Increase

Used to select digits when editing parameters.

SYNC output port (50Ω impedance).

Main output port (50Ω impedance).

Enter

50

W

POWER

Used to confirm input values.

Turns the instrument power on/off.

OUTPUT

Turns the output on/off.

Toggles the output impedance between 50Ω and High-Z.

Shift

High Z/50Ω

+

OUTPUT

Hz/Vpp

Selects Hz or Vpp units.

11

12

AFG-2000 Series User Manual

Shift

+

Save/Recall

Hz/Vpp

Saves or recalls waveforms from memory.

Shift kHz/Vrms

INT/EXT

Selects kHz or Vrms units.

+ kHz/Vrms

Sets the source to internal or external for the modulation and

FSK functions*.

Shift

MHz/dBm

Selects MHz or dBm units.

Hop

+

MHz/dBm

Sets the ―Hop‖ frequency for FSK modulation*.

Shift

%

+

%

Selects % units.

LIN/LOG

Sets the sweep to linear or logarithmic*.

Shift

Shift

AM

+

FM

Shape

AM

The shift key is used to select the secondary functions on the operation keys.

The AM key is used to turn AM modulation on/off*.

Selects the modulation waveform*.

The FM key is used to turn FM modulation on/off*.

Shift

Shift

+

DEP/DEV

FM

Selects the modulation depth or the frequency deviation*.

FSK

Selects FSK modulation*.

Rate

+

Sweep

FSK

Sets the AM, FM, FSK modulation and sweep function rate*

Selects the Sweep function*.

GETTING STARTED

Shift

Shift

+

Start/Stop

Sweep

Sets the Start or Stop frequency*.

Count

+

Gate

Count

Turns the frequency counter on/off*.

Sets the frequency counter gate time*.

ARB edit keys

Function keys

Point

Value

ARB

FUNC

Arbitrary waveform editing keys.

The Point key sets the ARB point numbers.

The Value key sets the amplitude value of the selected point.

The FUNC key is used to select the output waveform type:

Sine, Square, Ramp, Noise, ARB.

FREQ

AMPL

OFST

DUTY

Sets the frequency of the selected waveform.

Sets the amplitude of the selected waveform.

The OFST sets the DC offset for the selected waveform.

The DUTY key sets the duty cycle of square and ramp waveforms.

*indicates functions/features for the AFG-2105/2112/2125 only.

13

AFG-2105/2112/2125 Rear Panel

AFG-2000 Series User Manual

MOD output

WARNING

TO AVOID ELECTRIC SHOCK THE POWER CORD PROTECTIVE

GROUNDING CONDUCTOR MUST BE CONNECTED TO GROUND.

NO OPERATOR SERVICEABLE COMPONENTS INSIDE.

DO NOT REMOVE COVERS. REFER SERVICING TO

QUALIFIED PERSONNEL.

AC 100-240V

50-60Hz 25VA

SER.NO. LABEL

OUTPUT

MOD

INPUT

Counter

Trigger MOD

Power socket Type B USB port

AFG-2005/2012/2025 Rear Panel

Trigger input

Counter input

MOD input

WARNING

TO AVOID ELECTRIC SHOCK THE POWER CORD PROTECTIVE

GROUNDING CONDUCTOR MUST BE CONNECTED TO GROUND.

NO OPERATOR SERVICEABLE COMPONENTS INSIDE.

DO NOT REMOVE COVERS. REFER SERVICING TO

QUALIFIED PERSONNEL.

AC 100-240V

50-60Hz 25VA

SER.NO. LABEL

Power socket

MOD output

Counter input

MOD input

Trigger input

Type B USB port

Power Socket

Input

Type B USB port

OUTPUT

MOD

Trigger

INPUT

Counter

MOD

AC 100-240V

50-60Hz 25VA

Modulation output port.

Counter input port.

Modulation input port.

Trigger input port.

The type B USB port is used to connect the function generator to a

PC for remote control.

Power input: 100~240V AC

50~60Hz.

14

GETTING STARTED

Display

Waveform type

Counter settings

Frequency display

USB icon

Secondary parameter display

Modulation, sweep, counter menu

Waveform type

Counter settings

USB icon

Press the function key to cycle through different output waveforms.

Gate time counter settings*.

Shows the USB interface status.

Frequency

Display

Displays the main waveform frequency settings.

Secondary parameter display

Displays secondary waveform parameters and settings.

Modulation, sweep, counter menu

Displays the modulation, sweep and counter functions as well as the modulating waveform and source*.

*indicates functions/features for the AFG-2105/2112/2125 only.

15

16

AFG-2000 Series User Manual

Setting up the Function Generator

Background

This section describes how adjust the handle and power up the function generator.

Adjusting the stand

Pull out the handle sideways and rotate it.

AFG-2125

Arbitrary Function Generator

OUTPUT

SYNC

FUNC

FREQ

7

4

8

5

9

6

AMPL

OFST

DUTY

Point

Value

ARB

1

0

2

Save/Recall INT/EXT

Hz/Vpp

Shape

AM kHz/Vrms

DEP/DEV

FM

3

Enter

/

Hop

MHz/dBm

Rate

FSK

OUTPUT

LIN/LOG

%

Start/Stop

Sweep

Shift

Gate

Count

MAIN

POWER

50 W

50 W

Place the AFG horizontally.

Place the handle upright to tilt the stand.

Place the handle vertically to hand carry.

Power Up

GETTING STARTED

1. Connect the power cord to the socket on the rear panel.

2. Press the power button on the front panel.

POWER

3. The instrument will turn on and load the

default settings (see page 32 for default

settings).

The function generator is now ready to be used.

17

18

AFG-2000 Series User Manual

Q

UICK REFERENCE

This chapter lists operation shortcuts and default factory settings.

Use this chapter as a handy reference for instrument functions. This chapter is to be used as a quick reference; for detailed explanations on parameters, settings and limitations, please see the operation

chapter (page 34) or specifications (page 137).

How to use the Digital Inputs ............................................ 19

Selecting a Waveform ........................................................ 21

Sine Wave ............................................................................. 21

Square Wave ........................................................................ 21

Ramp Wave .......................................................................... 22

ARB ................................................................................... 23

ARB - Points ......................................................................... 23

Modulation ........................................................................ 24

AM (2100 series only) .......................................................... 24

FM (2100 series only) .......................................................... 25

FSK Modulation (2100 series only) ..................................... 26

Sweep (2100 series only) ................................................... 28

Counter (2100 series only) ................................................ 30

Save/Recall ........................................................................ 31

Save ...................................................................................... 31

Recall .................................................................................... 31

Default Settings ................................................................. 32

AFG-2000 Series User Manual

How to use the Digital Inputs

Background

The AFG-2000 has three main types of digital inputs: the number pad, arrow keys and the scroll wheel. The following instructions will show you how to use the digital inputs to edit parameters.

1. First select the function that must be edited pressing one of the function or ARB keys. The selected function will flash.

AFG-2025

Arbitrary Function Generator

Function keys

FUNC

FREQ

AMPL

OFST

DUTY

Point

Value

ARB

7

4

1

0

8

5

2

9

6

3

/

Save/Recall

Hz/Vpp kHz/Vrms MHz/dBm

Enter

OUTPUT

% Shift

SYNC

MAIN

POWER

ARB keys

2. To edit a parameter, use the arrow keys to move the cursor to the digit that needs to be edited.

cursor

19

AFG-2000 Series User Manual

3. Use the scroll wheel to increment the parameter by the resolution of the digit under the cursor.

In the example above, the scroll wheel will increment the parameter in 0.1 volt increments.

Clockwise increases the value, counterclockwise decreases the value.

4. Press the Enter key to confirm the new parameter value.

5. Alternatively, the number pad can be used to set the value of the selected parameter.

7

4

1

0

Enter

8

5

2

9

6

3

/

6. To finish editing with the number pad, select the unit with one of the unit keys.

(Hz, kHz, MHz, Vpp,

Vrms, dBm, %)

Hz/Vpp kHz/Vrms

MHz/dBm

%

20

QUICK REFERENCE

Selecting a Waveform

Sine Wave

Example: Sine Wave, 10kHz, 1Vpp, 2Vdc

Output

MAIN

50

W

1. Press the FUNC key repeatedly to select the Sine wave.

FUNC

2. Press FREQ > 1 > 0

> kHz.

FREQ

1

0 kHz/Vrms

3. Press AMPL > 1 >

Vpp.

4. Press OFST > 2 >

Vpp.

AMPL

OFST

5. Press the OUTPUT key.

OUTPUT

1

Hz/Vpp

2

Hz/Vpp

Square Wave

Example: Square Wave, 10kHz, 3Vpp, 75% duty cycle

Output

MAIN

50

W

1. Press the FUNC key repeatedly to select the Square wave.

FUNC

2. Press FREQ > 1 > 0

> kHz.

FREQ

1

0 kHz/Vrms

21

AFG-2000 Series User Manual

3. Press AMPL > 3 >

Vpp.

AMPL

4. Press DUTY > 7 > 5

> %.

DUTY

5. Press the output key.

OUTPUT

7

3

Hz/Vpp

5

%

Ramp Wave

Example: Ramp Wave, 10kHz, 3Vpp, 25% symmetry

Output

MAIN

50

W

1. Press the FUNC key repeatedly to select the Ramp wave.

FUNC

2. Press FREQ > 1 > 0

> kHz.

FREQ

1

0 kHz/Vrms

3. Press AMPL > 3 >

Vpp.

AMPL

4. Press DUTY > 2 > 5

> %.

DUTY

5. Press the OUTPUT key.

OUTPUT

2

3

Hz/Vpp

5

%

22

QUICK REFERENCE

ARB

ARB - Points

Example: 2 ARB points, 10 kHz, 1Vpp.

Output

MAIN

50

W

1. Press the FUNC key repeatedly to select the ARB wave.

FUNC

2. Press FREQ > 1 > 0

> kHz.

FREQ

3. Press AMPL > 1 >

Vpp.

4. Press Point > 0 >

Enter.

AMPL

Point

1

1

0

0 kHz/Vrms

Hz/Vpp

Enter

5. Press Value > 5 > 1

>1 > Enter.

Value

Enter

6. Press Point > 1 >

Enter.

Point

7. Press Value > ± > 5

> 1 >1 > Enter.

(-511)

Value

Enter

8. Press the OUTPUT key.

OUTPUT

1

/

5 1

5

1

Enter

1 1

23

AFG-2000 Series User Manual

Modulation

AM (2100 series only)

Example: AM modulation. 100Hz modulating square wave. 1 Vpp,

1kHz Sine wave carrier. 70% modulation depth. Internal source signal.

Output

MAIN

1. Press the FUNC key repeatedly to select the Sine wave.

FUNC

50

W

2. Press FREQ > 1 >

kHz.

3. Press AMPL > 1 >

Vpp.

4. Press AM.

5. Press Shift >

INT/EXT > select

INT source.

FREQ

AMPL

1 kHz/Vrms

1

Hz/Vpp

AM

Shift

INT/EXT

+ kHz/Vrms

6. Press Shift > Shape repeatedly to select the Square wave.

Shift

+

Shape

AM

7. Press Shift > Rate

> 1 > 0 > 0 > Hz.

0

Shift

+

Hz/Vpp

Rate

FSK

1 0

24

QUICK REFERENCE

8. Press Shift >

DEP/DEV> 7 > 0 >

%.

Shift

+

%

9. Press the OUTPUT key.

OUTPUT

DEP/DEV

FM

7

10. Press AM again to deselect the AM function.

AM

0

FM (2100 series only)

Example: FM modulation. 100Hz modulating square wave. 1Vpp,

1kHz Sine wave carrier. 100 Hz frequency deviation. Internal

Source.

Output

MAIN

50

W

1. Press the FUNC key repeatedly to select the Sine wave.

2. Press FREQ > 1 >

kHz.

3. Press AMPL > 1 >

Vpp.

4. Press FM.

5. Press Shift >

INT/EXT > select

INT source.

FUNC

FREQ

AMPL

1 kHz/Vrms

1

Hz/Vpp

FM

Shift

INT/EXT

+ kHz/Vrms

25

AFG-2000 Series User Manual

6. Press Shift > Shape repeatedly to select

Square wave.

Shift

+

Shape

AM

7. Press Shift > Rate

> 1 > 0 > 0 > Hz.

0

Shift

+

Hz/Vpp

Rate

FSK

8. Press Shift >

DEP/DEV> 1 > 0 >

0> Hz

0

Shift

+

Hz/Vpp

DEP/DEV

FM

1

9. Press the OUTPUT key.

OUTPUT

1

0

0

10. Press FM again to deselect the AM function.

FM

FSK Modulation (2100 series only)

Example: FSK modulation. 10Hz Hop frequency. 1Vpp, 1kHz Ramp carrier wave. 100 Hz Rate (modulation frequency). Internal Source.

Output

MAIN

50

W

1. Press the FUNC key repeatedly to select the Ramp wave.

2. Press FREQ > 1 >

kHz.

3. Press AMPL > 1 >

Vpp.

FUNC

FREQ

AMPL

1 kHz/Vrms

1

Hz/Vpp

26

QUICK REFERENCE

4. Press FSK.

5. Press Shift >

INT/EXT > select

INT source.

FSK

Shift

FSK

INT/EXT

+ kHz/Vrms

6. Press Shift > Rate

> 1 > 0 > 0 > Hz.

0

Shift

+

Hz/Vpp

Rate

FSK

7. Press Shift > Hop >

1 > 0 > Hz.

Shift

Hz/Vpp

Hop

+

MHz/dBm

8. Press the OUTPUT key.

OUTPUT

1

1

9. Press FSK again to deselect the FSK function.

0

0

27

AFG-2000 Series User Manual

Sweep (2100 series only)

Example: Frequency Sweep. Start Frequency 1Hz, Stop Frequency

1MHz. 1Hz Rate. 1Vpp. Linear Sweep.

Output

MAIN

50

W

1. Press the FUNC key repeatedly to select the Ramp wave.

FUNC

2. Press AMPL > 1 >

Vpp.

3. Press Sweep.

AMPL

1

Hz/Vpp

4. Press Shift >

INT/EXT > select

INT source.

Sweep

Shift

INT/EXT

+ kHz/Vrms

5. Press Shift >

Start/Stop select

Start> 1 > Hz.

6. Press Shift >

Start/Stop select

Stop> 1 > MHz.

7. Press Shift > Rate

> 1 > Hz.

8. Press Shift >

LIN/LOG > select

LINS.

Shift

Hz/Vpp

Start/Stop

+

Sweep

1

Start/Stop

Shift

MHz/dBm

+

Sweep

1

Shift

Hz/Vpp

+

Rate

FSK

Shift

+

LIN/LOG

%

1

28

QUICK REFERENCE

9. Press the OUTPUT key.

OUTPUT

10. Press Sweep again to deselect the sweep function.

Sweep

29

AFG-2000 Series User Manual

Counter (2100 series only)

Example: Frequency counter function, gate time 1s.

Input

OUTPUT

MOD

FSK

INPUT

Counter

1. Press the Count

key.

2. Press Shift > Gate repeatedly to select the 1S gate time.

Count

Shift

+

Gate

Count

MOD

3. Connect the signal to the counter input signal.

4. Press Count again to deselect the counter function.

Count

30

QUICK REFERENCE

Save/Recall

Save

Example: Save waveform to memory.

1. Press Shift >

Save/Recall. Select

Save.

2. Turn the scroll wheel and choose a save number.

Shift

Save/Recall

+

Hz/Vpp

3. Press Enter to confirm the save file number.

Enter

Recall

Example: Recall waveform from memory.

1. Press Shift >

Save/Recall. Select

Recall.

2. Turn the scroll wheel and choose a saved file number.

3. Press Enter to confirm the recall.

Shift

Save/Recall

+

Hz/Vpp

Enter

31

AFG-2000 Series User Manual

Default Settings

The default settings appear each time the power is turned on.

Output Config.

Function

Frequency

Amplitude

Offset

Output units

Output terminal

Output impedance

Sine wave

1kHz

100mVpp

0.00Vdc

Vpp

50Ω

50Ω

Modulation

(AM/FM/FSK)

Carrier Wave 1kHz Sine wave

Modulation waveforms 100Hz Sine wave

AM Depth

FM Deviation

100%

10Hz

FSK Hop Frequency

FSK Frequency

Modulation Status

100Hz

500Hz

Off

Sweep

Start/Stop frequency

Sweep time

Sweep rate

Sweep type

Sweep status

100Hz/1kHz

1s

100Hz

Linear

Off

32

QUICK REFERENCE

System settings

Power off signal

Display mode

On

On

Error queue cleared

Memory settings (ARB) No change

Output Off

CDC

Interface config.

USB

Calibration

Calibration Menu Restricted

33

AFG-2000 Series User Manual

34

O

PERATION

The Operation chapter shows how to output basic waveforms and create ARB waveforms. The AFG-2105/ 2112/ 2125 can also perform advanced functions such as modulation, sweep, FSK and counter functions.

Select a Waveform ............................................................. 36

Sine, Square, Ramp, Noise Waveform ................................ 36

Setting the Frequency ........................................................ 36

Setting the Amplitude ........................................................ 37

Setting the DC Offset ........................................................ 38

Setting the Duty Cycle/Symmetry....................................... 39

Setting the Output Impedance .......................................... 41

Turning the Output On ...................................................... 42

Amplitude Modulation (AM) (AFG-2100 Series) ............... 43

Selecting AM Modulation .................................................... 43

AM Carrier Waveform .......................................................... 44

Setting the Carrier Frequency .............................................. 44

Setting the Carrier Amplitude .............................................. 45

Setting the Modulating Wave Shape ................................... 46

Setting the Modulation Frequency (Rate) ........................... 47

Modulation Depth................................................................ 48

Setting the Modulation Source ............................................ 49

Frequency Modulation (FM) (AFG-2100 Series) ................. 51

Selecting FM Modulation .................................................... 51

FM Carrier Waveform .......................................................... 52

Setting the Carrier Frequency .............................................. 52

Setting the Carrier Amplitude .............................................. 53

Setting the Modulating Wave Shape ................................... 54

Setting the Modulation Frequency (Rate) ........................... 55

Frequency Deviation ............................................................ 56

Setting the Modulation Source ............................................ 57

Frequency Shift Keying (FSK) Modulation (AFG-2100 Series)

.......................................................................................... 59

OPERATION

Selecting FSK Modulation .................................................... 59

FSK Carrier Waveform .......................................................... 60

FSK Carrier Frequency .......................................................... 60

Setting the Carrier Amplitude .............................................. 61

Setting the Hop Frequency .................................................. 62

FSK Rate ............................................................................... 64

Setting the FSK Source ......................................................... 65

Frequency Sweep (AFG-2100 Series) .................................. 67

Selecting Sweep .................................................................... 67

Setting Start and Stop Frequency ........................................ 68

Sweep Mode ......................................................................... 70

Sweep Rate ........................................................................... 70

Setting the Sweep Source (Trigger) ..................................... 71

Creating an Arbitrary Waveform ......................................... 73

Using the Frequency Counter............................................. 75

Selecting the Frequency Counter Function .......................... 75

Selecting the Gate Time ....................................................... 75

Using the SYNC Output Port ............................................. 77

Connecting the SYNC Output Port ...................................... 77

SYNC Output Signal ............................................................ 77

Save and Recall State/ARB Waveform ................................ 81

35

AFG-2000 Series User Manual

Select a Waveform

The AFG-2000 can output four standard waveforms: sine, square, ramp and noise waveforms.

Sine, Square, Ramp, Noise Waveform

Panel Operation

1. Press the FUNC key repeatedly to select a standard waveform (Sine,

Square, Ramp, Noise).

Example:

Sine wave

FUNC

Note

The modulation, FSK, sweep and counter functions must be disabled before a standard waveform can be output.

Setting the Frequency

Panel Operation

1. Press the FREQ key.

FREQ

2. The FREQ icon will flash in the frequency display area.

36

Range

Example:

FREQ = 1kHz

OPERATION

3. Use the arrow

keys, scroll wheel and Enter key to edit the frequency.

Enter

Use the keypad and the relevant

unit key to enter a new frequency.

7

4

1

0

8

5

2

9

6

3

/

Hz/Vpp kHz/Vrms

MHz/dBm

Sine 0.1Hz ~ 25MHz*

Square 0.1Hz ~ 25MHz*

Ramp 0.1Hz ~ 1MHz

*limited to 5MHz for the AFG-2005/2105,

12MHz for the AFG-2012/2112.

Setting the Amplitude

Panel Operation

1. Press the AMPL key.

AMPL

2. The AMPL icon will flash in the secondary display area.

37

AFG-2000 Series User Manual

Range

Example:

AMPL= 1Vpp

3. Use the arrow

keys, scroll wheel and Enter key to edit the amplitude.

Enter

Use the keypad and the relevant

unit key to enter a new amplitude.

7

4

1

8

5

2

9

6

3

Hz/Vpp kHz/Vrms

0

/

MHz/dBm

No load 2mVpp~20Vpp

2mVpp~10Vpp for 20MHz – 25MHz

50Ω Load 1mVpp~10Vpp

1mVpp~5Vpp for 20MHz – 25MHz

Setting the DC Offset

Panel Operation

1. Press the OFST key.

OFST

2. The OFST icon will flash in the secondary display area.

38

Range

Example:

OFST= 1VDC

OPERATION

3. Use the arrow

keys, scroll wheel and Enter key to edit the offset.

Enter

Use the keypad and the Vpp key to enter a new offset.

7

4

8

5

9

6

1 2 3

Hz/Vpp

0 /

No Load (AC+DC) ±10Vpk

±5 Vpk for 20MHz–25MHz

50Ω Load (AC+DC) ±5 Vpk

±2.5 Vpk for 20MHz–25MHz

Setting the Duty Cycle/Symmetry

Background

The DUTY key sets the duty cycle or symmetry of the standard square or ramp waveforms.

Panel Operation

1. Ensure a square or ramp waveform is selected.

Page 36

2. Press the DUTY key.

DUTY

3. The duty icon will flash in the secondary display area.

39

AFG-2000 Series User Manual

Duty Cycle Range

4. Use the arrow

keys, scroll wheel and Enter key to edit the duty cycle/symmetry.

Enter

Use the keypad and the % key to enter a new duty cycle/symmetry.

≤ 100kHz

7

4

1

8

5

2

9

6

3

0

/

1.0% ~ 99.9%

%

≤ 5MHz

≤ 10MHz

≤ 25MHz

20.0% ~ 80.0%

40.0 ~ 60.0%

50.0% (fixed)

10% 50% 90%

Symmetry Range All frequencies 0% ~ 100%

0% 50% 100%

Example:

DUTY= 50.0%

40

OPERATION

Setting the Output Impedance

Background

Note

The AFG-2000 output impedance can be set to 50Ω or to High-Z.

When the output impedance is set to high-Z the effect output is doubled compared to the default 50Ω. For example, when the amplitude is set to 10Vpp (impedance of 50Ω) when the output impedance is switched to high-Z, the amplitude becomes 20Vpp. dBm units are not supported for the high-Z output impedance.

If the amplitude unit is dBm, and you switch to the High-Z output impedance, the amplitude unit will automatically change to Vpp.

If the output impedance is set to High-Z, you cannot set the amplitude units to dBm. Change the output impedance back to 50Ω first.

Panel Operation

1. To toggle the output impedance between 50 and

High-Z, press

SHIFT+OUTPUT.

Shift

High Z/50Ω

+

OUTPUT

2. The selected output impedance will flash momentarily on the display.

50 Ω:

High-Z:

41

AFG-2000 Series User Manual

Turning the Output On

Panel Operation

1. Press the OUTPUT key to output the selected waveform.

High Z/50Ω

OUTPUT

The output key will turn green when the output is on.

OUTPUT OUTPUT

High Z/50Ω

2. To disable the output, press the OUTPUT key again.

OUTPUT

The output key will turn off when the output is disabled.

OUTPUT OUTPUT

42

OPERATION

Amplitude Modulation (AM)

(AFG-2100 Series)

An AM waveform is produced from a carrier waveform and a modulating waveform. The amplitude of the modulated carrier waveform depends on the amplitude of the modulating waveform.

The AFG-2100 function generator can set the carrier frequency, amplitude and offset as well as internal or external modulation sources.

AM modulation is only applicable for the AFG-2105, AFG-2112 and the AFG-2125 function generators.

Modulated Carrier

Waveform

Modulating waveform

Selecting AM Modulation

Panel Operation

1. Press the AM key.

AM

2. The modulation, sweep and counter menu display will appear. The AM icon indicates that the AM function is active.

43

Example:

AM activated

AFG-2000 Series User Manual

Note

AM modulation can be deactivated by pressing the

AM key again.

AM Carrier Waveform

Background

The FUNC key selects the AM carrier waveform.

Sine, square or ramp waveforms can be used as the carrier. The default waveform is set to sine. Noise is not available as a carrier shape. Before the carrier shape can be selected, ensure AM is active,

page 43.

Selecting the

Carrier Shape

Range

1. Press the FUNC key repeatedly to select a carrier waveform (Sine,

Square, Ramp).

FUNC

AM Carrier Shape sine, square, ramp

Setting the Carrier Frequency

Panel Operation

1. Press FREQ key.

FREQ

2. The FREQ icon will flash in the frequency display area.

44

Range

Example:

FREQ = 1kHz

OPERATION

3. Use the arrow

keys, scroll wheel and Enter key to edit the frequency.

Enter

Use the keypad and the relevant

unit key to enter a new frequency.

7

4

1

0

8

5

2

9

6

3

/

Hz/Vpp kHz/Vrms

MHz/dBm

Sine 0.1Hz ~ 25MHz*

Square 0.1Hz ~ 25MHz*

Ramp 0.1Hz ~ 1MHz

*limited to 5MHz for the AFG-2105, 12MHz for the AFG-2112.

Setting the Carrier Amplitude

Panel Operation

1. Press AMPL key.

AMPL

2. The AMPL icon will flash in the secondary display area.

45

Range

Example:

AMPL= 1Vpp

AFG-2000 Series User Manual

3. Use the arrow

keys, scroll wheel and Enter key to edit the amplitude.

Enter

Use the keypad and the relevant

unit key to enter a new amplitude.

7

4

1

8

5

2

9

6

3

Hz/Vpp kHz/Vrms

0

/

MHz/dBm

No Load 2mVpp~20Vpp

2mVpp~10Vpp for 20MHz – 25MHz

50Ω Load 1mVpp~10Vpp

1mVpp~5Vpp for 20MHz – 25MHz

Setting the Modulating Wave Shape

The AFG-2100 has sine, square and ramp modulating waveform shapes. Sine waves are the default wave shape.

Panel Operation

1. Press the Shift + Shape key repeatedly to select a shape waveform.

Shift

+

Shape

AM

2. The waveform Shape is displayed in blue at the bottom of the panel.

46

Restrictions

Example:

Shape = Sine

OPERATION

Square 50% duty cycle

Ramp 50% symmetry

Setting the Modulation Frequency (Rate)

Panel Operation

1. Press the Shift + Rate key.

Shift

+

Rate

FSK

2. The Rate icon will flash in the frequency display area.

Range

3. Use the arrow

keys, scroll wheel and Enter key to edit the rate.

Enter

Use the keypad and the relevant

unit key to enter a new rate.

7

4

1

8

5

2

9

6

3

0

/

(Internal source) 2mHz ~ 20kHz

Hz/Vpp kHz/Vrms

Default 100Hz

47

Example:

Rate= 100Hz

AFG-2000 Series User Manual

Modulation Depth

Modulation depth is the ratio (as a percentage) of the unmodulated carrier amplitude and the minimum amplitude deviation of the modulated waveform. In other words, modulation depth is the maximum amplitude of the modulated waveform compared to the carrier waveform as a percentage.

Panel Operation

1. Press the Shift + DEP/DEV key.

Shift

+

DEP/DEV

FM

2. The DEP icon will flash in the secondary display area.

3. Use the arrow

keys, scroll wheel and Enter key to edit the modulation depth.

Enter

Range

Use the keypad and the % key to enter a new depth.

Depth

Default

7

4

1

8

5

2

9

6

3

0

/

0% ~ 120%

100%

%

48

Example:

DEP= 100%

OPERATION

Note

When the modulation depth is greater than

100%, the output cannot exceed ±5VPeak

(50Ω load).

If an external modulation source is selected, modulation depth is limited to

±5V from the MOD input port on the rear panel. For example, if the modulation depth is set to 100%, then the maximum amplitude is +5V, and the minimum amplitude is -5V.

Setting the Modulation Source

Panel Operation

1. Press the Shift + INT/EXT key to select the modulation source.

Shift

INT/EXT

+ kHz/Vrms

2. The modulation source will be displayed at the bottom of the screen.

Note

If an external modulation source is selected, modulation depth is limited to ± 5V from the

MOD input port on the rear panel. For example, if the modulation depth is set to 100%, then the maximum amplitude is +5V, and the minimum amplitude is -5V.

49

Example:

Source = INT

AFG-2000 Series User Manual

Example: External

MOD input signal

AM output

MOD input signal

0V

+5V

0V

-5V

50

OPERATION

Frequency Modulation (FM)

(AFG-2100 Series)

An FM waveform is produced from a carrier waveform and a modulating waveform. The instantaneous frequency of the carrier waveform varies with the magnitude of the modulating waveform.

FM modulation is only applicable to the AFG-2105, AFG-2112 and the AFG-2125.

Modulating waveform

Modulated Carrier

Waveform

Selecting FM Modulation

Panel Operation

1. Press the FM key.

FM

2. The modulation, sweep and counter menu display will appear. The FM icon indicates that the FM function is active.

51

Example:

FM activated

AFG-2000 Series User Manual

Note

FM modulation can be deactivated by pressing the FM key again.

FM Carrier Waveform

Background

The FUNC key selects the FM carrier waveform.

Sine, square or ramp waveforms can be used as the carrier. The default waveform is set to sine. Noise is not available as a carrier shape. Before the carrier shape can be selected, ensure FM is active,

page 51.

Selecting the

Carrier Shape

Range

1. Press the FUNC key repeatedly to select a carrier waveform (Sine,

Square, Ramp).

FUNC

FM Carrier Shape sine, square, ramp

Setting the Carrier Frequency

Background

When using the AFG-2100 function generator, the carrier frequency must be equal to or greater than the frequency deviation.

Panel Operation

1. Press FREQ key.

FREQ

52

Range

Example:

FREQ = 1kHz

OPERATION

2. The FREQ icon will flash in the frequency display area.

3. Use the arrow

keys, scroll wheel and Enter key to edit the frequency.

Enter

Use the keypad and the relevant

unit key to enter a new frequency.

7

4

1

0

8

5

2

9

6

3

/

Hz/Vpp kHz/Vrms

MHz/dBm

Sine 0.1Hz ~ 25MHz*

Square 0.1Hz ~ 25MHz*

Ramp 0.1Hz ~ 1MHz

*limited to 5MHz for the AFG-2105, 12MHz for the AFG-2112.

Setting the Carrier Amplitude

Panel Operation

1. Press AMPL key.

AMPL

2. The AMPL icon will flash in the secondary display area.

53

Range

Example:

AMPL= 1Vpp

AFG-2000 Series User Manual

3. Use the arrow

keys, scroll wheel and Enter key to edit the amplitude.

Enter

Use the keypad and the relevant

unit key to enter a new amplitude.

7

4

1

8

5

2

9

6

3

Hz/Vpp kHz/Vrms

0 /

MHz/dBm

No Load 2mVpp~20Vpp

2mVpp~10Vpp for 20MHz – 25MHz

50Ω load 1mVpp~10Vpp

1mVpp~5Vpp for 20MHz – 25MHz

Setting the Modulating Wave Shape

The AFG-2100 has sine, square and ramp modulating waveform shapes. Sine waves are the default wave shape. The modulating wave shape is for internal sources only.

Panel Operation

1. Press the Shift + Shape key repeatedly to select a shape waveform.

Shift

+

Shape

AM

54

Restrictions

Example:

Shape = Sine

OPERATION

2. The waveform Shape is displayed in blue at the bottom of the panel.

Square

Ramp

50% duty cycle

50% symmetry

Setting the Modulation Frequency (Rate)

Panel Operation

1. Press the Shift + Rate key.

Shift

+

Rate

FSK

2. The Rate icon will flash in the frequency display area.

3. Use the arrow

keys, scroll wheel and Enter key to edit the rate.

Enter

Use the keypad and the relevant

unit key to enter a new rate.

7

4

1

0

8

5

2

9

6

3

/

Hz/Vpp

→ kHz/Vrms

55

Range

Example:

Rate= 100Hz

AFG-2000 Series User Manual

(Internal source) 2mHz ~ 20kHz

Default 100Hz

Frequency Deviation

The frequency deviation is the peak frequency deviation from the carrier wave and the modulated wave.

Panel Operation

1. Press the Shift + DEP/DEV key.

Shift

+

DEP/DEV

FM

2. The DEV icon will flash in the frequency display area.

3. Use the arrow

keys, scroll wheel and Enter key to edit the frequency deviation.

Enter

Range

Use the keypad and the relevant

unit key to enter a new frequency deviation.

Sine

7

4

1

0

8

5

2

9

6

3

/

DC ~ 25MHz*

Hz/Vpp

→ kHz/Vrms

MHz/dBm

56

Note

Example:

DEV = 10Hz

OPERATION

Square

Ramp

DC ~ 25MHz*

DC ~ 1MHz

Default 10Hz

*limited to 5MHz for the AFG-2105, 12MHz for the AFG-2112.

The frequency deviation must be equal to or less than the carrier frequency.

The sum of the carrier frequency and frequency deviation must be less than or equal to the maximum carrier.

The maximum frequency deviation allowed will be limited by the set carrier frequency.

Setting the Modulation Source

Panel Operation

1. Press the Shift + INT/EXT key to select the modulation source.

Shift

INT/EXT

+ kHz/Vrms

2. The modulation source will be displayed at the bottom of the screen.

Range Source INT, EXT

57

Connection

(EXT source only)

Note

AFG-2000 Series User Manual

For external sources, connect the modulation source signal to the MOD input port on the rear panel.

OUTPUT

MOD

INPUT

Counter

Trigger MOD

When the source is set to EXT (external) the carrier waveform is modulated by an external signal. The frequency deviation is controlled by the ±5V signal that is input into the MOD input port. The ±5V input signal directly corresponds to the set frequency deviation. +5V increases the frequency by the set deviation frequency and -5V reduces the frequency to below the carrier frequency by the amount set by the deviation frequency. For example: if the deviation frequency is set to 1kHz, an input voltage of +5V will increase the frequency to 1kHz, whilst an input voltage of -5V will reduce the frequency below that of the carrier by 1kHz.

Example:

Source = INT

Example: External

MOD input signal

FM output

MOD input signal

58

0V

+5V

0V

-5V

OPERATION

Frequency Shift Keying (FSK) Modulation

(AFG-2100 Series)

Frequency Shift Keying Modulation is used to shift the frequency output of the function generator between two preset frequencies

(carrier frequency, hop frequency). The frequency at which the carrier and hop frequency shift is determined by the rate setting or the voltage level from the Trigger input port on the rear panel.

FSK modulation is only applicable to the AFG-2105, AFG-2112 and the AFG-2125.

Carrier Frequency

Hop Frequency

Selecting FSK Modulation

Panel Operation

1. Press the FSK key.

FSK

2. The modulation, sweep and counter menu display will appear. The FSK icon indicates that the FSK function is active.

59

Example:

FSK activated

AFG-2000 Series User Manual

Note

FSK modulation can be deactivated by pressing the

FSK key again.

FSK Carrier Waveform

Background

The FUNC key selects the FSK carrier waveform.

Sine, square or ramp waveforms can be used as the carrier. The default waveform is set to sine. Noise and ARB cannot be used as a carrier wave.

Selecting the

Carrier

Range

1. Press the FUNC key repeatedly to select a carrier waveform (Sine,

Square, Ramp).

FUNC

FSK Carrier Shape sine, square, ramp

FSK Carrier Frequency

The maximum carrier frequency depends on the carrier shape. The default carrier frequency for all carrier shapes is 1kHz. The voltage level of the Trigger input port controls the output frequency when

EXT is selected as the source. When the Trigger input signal is logically low, the carrier frequency is output and when the signal is logically high, the hop frequency is output.

Panel Operation

1. Press FREQ key.

FREQ

60

Range

Example:

FREQ = 1kHz

OPERATION

2. The FREQ icon will flash in the frequency display area.

3. Use the arrow

keys, scroll wheel and Enter key to edit the frequency.

Enter

Use the keypad and the relevant

unit key to enter a new frequency.

7

4

1

0

8

5

2

9

6

3

/

Hz/Vpp kHz/Vrms

MHz/dBm

Sine 0.1Hz ~ 25MHz*

Square 0.1Hz ~ 25MHz*

Ramp 0.1Hz ~ 1MHz

*limited to 5MHz for the AFG-2105, 12MHz for the AFG-2112.

Setting the Carrier Amplitude

Panel Operation

1. Press AMPL key.

AMPL

61

Range

Example:

AMPL= 1Vpp

AFG-2000 Series User Manual

2. The AMPL icon will flash in the secondary display area.

3. Use the arrow

keys, scroll wheel and Enter key to edit the amplitude.

Enter

Use the keypad and the relevant

unit key to enter a new amplitude.

7

4

1

8

5

2

9

6

3

Hz/Vpp kHz/Vrms

0

/

MHz/dBm

No Load 2mVpp~20Vpp

2mVpp~10Vpp for 20MHz – 25MHz

50Ω Load 1mVpp~10Vpp

1mVpp~5Vpp for 20MHz – 25MHz

Setting the Hop Frequency

The default Hop frequency for all waveform shapes is 100 Hz. A square wave with a duty cycle of 50% is used for the internal modulation waveform. The voltage level of the Trigger input signal controls the output frequency when EXT is selected. When the

Trigger input signal is logically low the carrier frequency is output and when the signal is logically high, the hop frequency is output.

62

OPERATION

Panel Operation

1. Press the Shift + Hop key.

Shift

Hop

+

MHz/dBm

2. The Hop icon will flash in the frequency display area.

Range

3. Use the arrow

keys, scroll wheel and Enter key to edit the hop frequency.

Enter

Use the keypad and the relevant

unit key to enter a hop frequency.

7

4

1

0

8

5

2

9

6

3

/

Hz/Vpp kHz/Vrms

MHz/dBm

Sine

Square

Ramp

Default

0.1Hz ~ 25MHz*

0.1Hz~ 25MHz*

0.1Hz~ 1MHz

100Hz

*limited to 5MHz for the AFG-2105, 12MHz for the AFG-2112.

Example:

Hop = 100Hz

63

AFG-2000 Series User Manual

FSK Rate

FSK Rate function is used to determine the rate at which the output frequency changes between the carrier and hop frequencies. The

FSK Rate function only applies to internal FSK sources.

Panel Operation

1. Press the Shift + Rate key.

Shift

+

Rate

FSK

2. The Rate icon will flash in the frequency display area.

3. Use the arrow

keys, scroll wheel and Enter key to edit the rate.

Enter

Range

Example:

Rate= 1KHz

Use the keypad and the relevant

unit key to enter a new rate.

7

4

1

8

5

2

9

6

3

0 /

(Internal source) 2mHz ~ 20kHz

Hz/Vpp kHz/Vrms

Default 100Hz

64

Setting the FSK Source

OPERATION

The AFG-2000 accepts internal and external FSK sources, with internal as the default source. When the FSK source is set to internal, the FSK rate is configured using the FSK Rate function. When an external source is selected the FSK rate is equal to the frequency of the Trigger input signal on the rear panel. When the input signal is logically low the carrier frequency is output and when the signal is logically high, the hop frequency is output.

Panel Operation

1. Press the Shift + INT/EXT key to select the modulation source.

Shift

INT/EXT

+ kHz/Vrms

2. The FSK source will be displayed at the bottom of the screen.

Range Source INT, EXT

Connection

(EXT source only)

For external sources, connect the FSK rate source signal to the Trigger input port on the rear panel.

OUTPUT

MOD

INPUT

Counter

Trigger MOD

Example:

Source = EXT

65

Example: External trigger input signal

FSK output

Trigger input signal

AFG-2000 Series User Manual

0V

66

OPERATION

Frequency Sweep

(AFG-2100 Series)

The function generator can perform a sweep for sine, square or ramp waveforms, but not noise, and ARB. In Sweep mode, the function generator will sweep from a start frequency to a stop frequency over a number of designated steps. If an external source is selected, the function generator can be used to output a single sweep each time a

TTL level pulse is received from the Trigger input port. The step spacing of the sweep can be linear or logarithmic. The function generator can also sweep up or sweep down in frequency. The

Sweep function only applies to the AFG-2105, AFG-2112 and the

AFG-2125.

Sweep

Selecting Sweep

Panel Operation

1. Press the Sweep key.

Sweep

2. The modulation, sweep and counter menu display will appear. The Sweep icon indicates that the Sweep function is active.

67

Example:

Sweep activated

AFG-2000 Series User Manual

Note

Sweep modulation can be deactivated by pressing the

Sweep key again.

Setting Start and Stop Frequency

The start and stop frequencies define the upper and lower sweep limits. The function generator will sweep from the start through to the stop frequency and cycle back to the start frequency. The sweep is phase continuous over the full sweep range.

Panel Operation

1. Pressing the Shift +

Start/Stop key will toggle between the start and stop frequencies. Select the Start frequency icon.

Shift

+

Start/Stop

Sweep

→ Start

2. The Start icon will flash in the frequency display area when selected.

3. Use the arrow

keys, scroll wheel and Enter key to edit the start frequency.

Enter

68

Range

Note

Example:

Start = 100Hz

OPERATION

Use the keypad and the relevant

unit key to enter a new start frequency.

Sine

7

4

1

0

8

5

2

0.1Hz ~ 25MHz*

9

6

3

/

Square 0.1Hz ~ 25MHz*

Ramp 0.1Hz ~ 1MHz

Hz/Vpp kHz/Vrms

MHz/dBm

Default Start: 100Hz, Stop: 1kHz

*limited to 5MHz for the AFG-2105, 12MHz for the AFG-2112.

4. Repeat steps 1 to 3 for the Stop frequency.

To sweep from a low to high frequency, set the Start frequency < Stop frequency.

To sweep from a high to low frequency, set the Start frequency > Stop frequency.

Example:

Stop = 1kHz

69

AFG-2000 Series User Manual

Sweep Mode

Sweep mode is used to select between linear or logarithmic sweeping. Linear sweeping is the default setting.

Panel Operation

1. Press the Shift + LIN/LOG key to select linear (LINS) or logarithmic (LOGS) sweeps.

Shift

+

LIN/LOG

%

2. The LINS or LOGS icon will be displayed at the bottom of the screen.

Example:

Sweep = LINS

Sweep Rate

The sweep rate is used to determine how long it takes to perform a sweep from the start to stop frequencies. The function generator automatically determines the number of discrete frequencies used in the scan depending on the length of the scan.

Panel Operation

1. Press the Shift + Rate key.

Shift

Rate

FSK

+

2. The Rate icon will flash in the frequency display area.

70

OPERATION

Range

Example:

Rate= 100Hz

3. Use the arrow

keys, scroll wheel and Enter key to edit the rate.

Enter

Use the keypad and the relevant

unit key to enter a new rate.

Sweep Rate

7

4

1

8

5

2

9

6

3

Hz/Vpp kHz/Vrms

0 /

1kHz ~ 2mHz (1ms ~ 500s)

Default 100Hz

Setting the Sweep Source (Trigger)

With the source set to EXT, the function generator will sweep each time a trigger signal is received. After a sweep output has completed, the function generator waits for a trigger signal before starting the next sweep. The default trigger source is internal.

Panel Operation

1. Press the Shift + INT/EXT key to select the modulation source.

Shift

INT/EXT

+ kHz/Vrms

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AFG-2000 Series User Manual

2. The Trigger source will be displayed at the bottom of the screen.

Range

Connection

(EXT source only)

Source INT, EXT

For external sources, connect the Sweep trigger signal to the Trigger input port on the rear panel.

OUTPUT

MOD

INPUT

Counter

Trigger MOD

Example:

Source = EXT

Note

With an external source, a sweep is output each time a trigger pulse (TTL) is received from the

Trigger input port on the rear panel.

The trigger frequency must be greater than the sweep rate (sweep time) plus 125nS (trigger pulse width > 125nS).

Example: External trigger input signal

Sweep output

0V

Trigger input signal

72

OPERATION

Creating an Arbitrary Waveform

Both the AFG-2000 and AFG-2100 has a simple arbitrary waveform editing function. The ARB function is able to create waveforms with a 20MHz sampling rate, 4k data points with vertical range of

±511points.

Selecting the

Carrier Shape

1. Press the FUNC key repeatedly to select the

ARB function.

FUNC

2. Press the Point key.

Point

3. Point will flash in the secondary display area.

4. Use the scroll

wheel or keypad to choose a point number. or

1

4

7

0

8

5

2

9

6

3

/

Range

Use the Enter key to confirm the point number.

Point: 0 ~ 4096

Enter

5. Press the Value key.

Point

6. Value will flash in the secondary display area.

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AFG-2000 Series User Manual

7. Use the scroll

wheel or keypad to choose the vertical value of the selected point. or

1

4

0

7 8

5

2

9

6

3

/

Use the Enter key to confirm the point value.

Enter

Range Value: ±511 (10-bit vertical resolution)

Note

Example:

Point “0” is set to

+511.

8. Repeat steps 2 to 7 for the remaining points of the ARB waveform.

The horizontal position of the points depends on the set frequency. For example, if the set frequency is 1kHz

(period = 1ms), then each point will be located every

0.01ms (1ms/sample rate).

Note

To save the ARB data, please see the Save/Recall

section on page 81.

74

OPERATION

Using the Frequency Counter

Selecting the Frequency Counter Function

Connection

Connect the signal source to

Counter input port on the rear panel.

OUTPUT

MOD

INPUT

Counter

Trigger MOD

Panel Operation

1. Press the Count key.

Gate

Count

2. The current gate time and the Count icon will appear in the display when the counter function is active.

The input frequency will be shown in the frequency display area.

Example: input frequency of 1kHz

Selecting the Gate Time

Panel Operation

1. Ensure the Count function is active.

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75

Range

AFG-2000 Series User Manual

2. Press the Shift + Gate key repeatedly to select the desired gate time.

Gate time

Shift

0.01s, 0.1s, 1s, 10s

+

Gate

Count

3. The current gate time is displayed in the counter settings area of the display.

76

OPERATION

Using the SYNC Output Port

Connecting the SYNC Output Port

Background

The SYNC output port is used as a synchronization signal for function outputs. All the output signals apart from the noise output function have a synchronization signal.

Connection

Note

Connect a BNC cable from the

SYNC output port on the front panel to the desired input device.

SYNC

50

W

The SYNC signal is output even when the main output is not output.

SYNC Output Signal

SYNC Output For

Sine Wave

SYNC output: TTL square waveform with a 50% duty cycle. The SYNC output is at a logically high level when the sine output is positive.

Output diagram

Sine output

0V

SYNC output

0V

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AFG-2000 Series User Manual

SYNC Output For

Square Wave

SYNC output: TTL square waveform with a duty cycle corresponding to the duty cycle of the output square wave. The SYNC output is at a logically high level when the square wave output is positive.

Output diagram

Square wave output

0V

SYNC output

0V

SYNC Output For

Ramp Wave

SYNC output: TTL square waveform with a 50% duty cycle. The SYNC output is at a logically high level when the sine output is positive.

Output diagram

Ramp wave output

0V

SYNC output

0V

SYNC Output For

ARB Wave

SYNC output: A single TTL positive pulse at the start of each ARB period (pulse width = 1/sample rate).

Output diagram

ARB output 0V

SYNC output

0V

78

OPERATION

SYNC Output For

AM

SYNC output: TTL square waveform with a 50% duty cycle. The SYNC output is at a logically high level when the modulated output is positive.

Output diagram

AM output

0V

SYNC output

0V

SYNC Output For

FM

SYNC output: TTL square waveform with a 50% duty cycle. The SYNC output is at a logically high level when the modulated output is positive (The

SYNC output is synchronized to the modulated output frequency).

Output diagram

FM output 0V

SYNC output

0V

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AFG-2000 Series User Manual

SYNC Output For

FSK

SYNC output: TTL square waveform with a 50% duty cycle. The SYNC output is at a logically high level when the modulated output is positive (The

SYNC output is synchronized to the modulated output frequency).

Output diagram

FSK output 0V

SYNC output

0V

SYNC Output For

Sweep

SYNC output: TTL square waveform. The SYNC output is at a logically high level when the sweep output is positive (The SYNC output is synchronized to the sweep output frequency).

Output diagram

Sweep output 0V

SYNC output

0V

80

OPERATION

Save and Recall State/ARB Waveform

The AFG-2000 has non-volatile memory to store instrument state and ARB data. There are 10 memory locations numbered 0~19.

Memory locations 0~9 saves/recalls the instrument state, memory locations 10~19 saves/recalls ARB data.

The instrument saves the following states: the selected function

(including ARB), frequency, amplitude, DC offset, duty cycle/symmetry, and any of the modulation parameters.

Panel Operation

1. Press the Shift +

Save/Recall key to either select Save (to save the state) or Recall (to recall the state).

Shift

+

Save/Recall

Hz/Vpp

→ Save

2. Save or Recall will be shown in the secondary display area.

3. Use the scroll

wheel or keypad to choose the save/recall number. or

1

4

7

0

8

5

2

9

6

3

/

Use the Enter key to save/recall the state.

Enter

81

Note

AFG-2000 Series User Manual

The instrument state can be saved to any 10 (0~9) of the storage locations. ARB data can be saved to any 10

(10~19) instrument locations.

When a state is saved, it overwrites the previously saved state in the same location. If ARB data is recalled, the current state will be overwritten.

A memory location can only be recalled if it has been previously saved.

Example:

Save State

Example:

Recall State

82

REMOTE INTERFACE

R

EMOTE INTERFACE

Selecting the USB Remote Interface .................................. 85

Remote control terminal connection ................................... 85

Command Syntax ............................................................... 86

Command List ................................................................... 92

System Commands ............................................................ 94

*IDN? ................................................................................... 94

*RST...................................................................................... 94

Status Register Commands ............................................... 95

*CLS ...................................................................................... 95

Apply Commands .............................................................. 96

SOURce[1]:APPLy:SINusoid ................................................. 98

SOURce[1]:APPLy:SQUare ................................................... 98

SOURce[1]:APPLy:RAMP ...................................................... 99

SOURce[1]:APPLy:NOISe ..................................................... 99

SOURce[1]:APPLy:USER ..................................................... 100

SOURce[1]:APPLy? ............................................................. 100

Output Commands .......................................................... 102

SOURce[1]:FUNCtion ......................................................... 102

SOURce[1]:FREQuency ...................................................... 103

SOURce[1]:AMPLitude ....................................................... 105

SOURce[1]:DCOffset .......................................................... 106

SOURce[1]:SQUare:DCYCle ............................................... 106

SOURce[1]:RAMP:SYMMetry ............................................. 107

OUTPut ............................................................................... 108

SOURce[1]:VOLTage:UNIT ................................................ 109

Amplitude Modulation (AM) Commands ......................... 110

AM Overview ...................................................................... 110

SOURce[1]:AM:STATe ........................................................ 111

SOURce[1]:AM:SOURce ..................................................... 111

SOURce[1]:AM:INTernal:FUNCtion .................................. 112

SOURce[1]:AM:INTernal:FREQuency ................................ 112

SOURce[1]:AM:DEPTh ....................................................... 113

Frequency Modulation (FM) Commands ......................... 114

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AFG-2000 Series User Manual

FM Overview ...................................................................... 114

SOURce[1]:FM:STATe ........................................................ 114

SOURce[1]:FM:SOURce ..................................................... 115

SOURce[1]:FM:INTernal:FUNCtion .................................. 116

SOURce[1]:FM:INTernal:FREQuency ................................ 116

SOURce[1]:FM:DEViation .................................................. 117

Frequency-Shift Keying (FSK) Commands ........................ 119

FSK Overview ..................................................................... 119

SOURce[1]:FSKey:STATe .................................................... 119

SOURce[1]:FSKey:SOURce ................................................ 120

SOURce[1]:FSKey:FREQuency ........................................... 120

SOURce[1]:FSKey:INTernal:RATE ...................................... 121

Frequency Sweep Commands........................................... 123

Sweep Overview ................................................................. 123

SOURce[1]:SWEep:STATe .................................................. 124

SOURce[1]:FREQuency:STARt ........................................... 124

SOURce[1]:FREQuency:STOP ............................................ 125

SOURce[1]:SWEep:SPACing .............................................. 126

SOURce[1]:SWEep:RATE ................................................... 126

SOURce[1]:SWEep:SOURce ............................................... 127

Frequency Counter Commands ........................................ 128

COUNter:GATe .................................................................. 128

COUNter:STATe ................................................................. 128

COUNter:VALue? ............................................................... 129

Arbitrary Waveform Commands ....................................... 130

Arbitrary Waveform Overview ............................................ 130

SOURce[1]:FUNCtion USER .............................................. 131

DATA:DAC .......................................................................... 131

Save and Recall Commands ............................................. 133

*SAV ................................................................................... 133

*RCL ................................................................................... 133

84

REMOTE INTERFACE

Selecting the USB Remote Interface

The AFG-2000 uses a USB interface for remote control. Connecting to USB

USB configuration

PC side connector

Type A, host

AFG-2000 side connector

Type B, slave

Speed

1.1/2.0 (full speed)

Panel Operation

1. Connect the

Type B USB—USB-A cable from the PC to the type B

USB port on the rear panel.

2. When the PC asks for the USB driver, select

XXXXXXX.inf included in the software package or download the driver from the GW website, www.gwinstek.com

.

3. The USB icon will appear when the USB connection is active.

Remote control terminal connection

Terminal application

Invoke the terminal application such as Hyper

Terminal. Make note of the COM port, baud rate, stop bit, data bit, and parity accordingly from the

Windows Device Manager.

To check the COM port settings, see the Device

Manager in the PC. For WinXP, Control panel →

System → Hardware tab.

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AFG-2000 Series User Manual

Functionality check

Note

PC Software

Run this query command via the terminal.

*idn?

This should return the Manufacturer, Model number, Serial number, and Firmware version in the following format.

GW INSTEK, AFG-2125, SN:XXXXXXXX,Vm.mm

^j and ^m can be used as the terminal character when using a terminal program.

The proprietary PC software, downloadable from

GWInstek website, can be used to download waveforms.

Command Syntax

Compatible standard

IEEE488.2, 1992 (fully compatible)

SCPI, 1994 (partially compatible)

Command Tree

The SCPI standard is an ASCII based standard that defines the command syntax and structure for programmable instruments.

Commands are based on a hierarchical tree structure. Each command keyword is a node on the command tree with the first keyword as the root node. Each sub node is separated with a colon.

Shown below is a section of the SOURce[1] root node and the APPLy/OUTPut and

SINusoid/SQUare sub nodes.

86

SOURce[1|2]

REMOTE INTERFACE

Root node

:OUTPut :APPLy

2 nd

node

:SINusoid :SQUare

3 rd

node

Command types

Commands can be separated into three distinct types, simple commands, compound commands and queries.

Simple

Example

A single command with/without a parameter

*OPC

Compound

Example

Query

Example

Two or more commands separated by a colon (:) with/without a parameter

SOURce:APPLy:SQUare

A query is a simple or compound command followed by a question mark (?). A parameter (data) is returned. The maximum or minimum value for a parameter can also be queried where applicable.

SOURce1:FREQuency?

SOURce1:FREQuency? MIN

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AFG-2000 Series User Manual

Command forms

Commands and queries have two different forms, long and short. The command syntax is written with the short form of the command in capitals and the remainder (long form) in lower case.

long long

SOURce1:DCOffset

Command

Format

Square Brackets

[ ]

short short

The commands can be written in capitals or lowercase, just so long as the short or long forms are complete. An incomplete command will not be recognized.

Below are examples of correctly written commands:

LONG: SOURce1:DCOffset

SOURCE1:DCOFFSET source1:dcoffset

SHORT: SOUR1:DCO sour1:dco

SOURce1:DCOffset < offset

>LF

1 2 3

1: command header

4 2: single space

3: parameter

4: message terminator

Commands that contain squares brackets indicate that the contents are optional. The function of the command is the same with or without the square bracketed items. Brackets are not sent with the command.

For example, the frequency query below can use any of the following 3 forms:

SOURce1:FREQuency? [MINimum|MAXimum]

SOURce1:FREQuency? MAXimum

88

REMOTE INTERFACE

Braces { }

Angled Brackets

< >

Bars |

SOURce1:FREQuency? MINimum

SOURce1:FREQuency?

Commands that contain braces indicate one item within the braces must be chosen. Braces are not sent with the command.

Angle brackets are used to indicate that a value must be specified for the parameter. See the parameter description below for details. Angled brackets are not sent with the command.

Bars are used to separate multiple parameter choices in the command format.

Parameters Type Description Example

<Boolean>

<NR1>

<NR2>

<NR3>

Boolean logic integers

0, 1/ON,OFF

0, 1, 2, 3 decimal numbers 0.1, 3.14, 8.5 floating point 4.5e-1, 8.25e+1

<NRf>

<NRf+>

<Numeric> any of NR1, 2, 3 1, 1.5, 4.5e-1

NRf type with a suffix including

MINimum,

MAXimum or

DEFault parameters.

1, 1.5, 4.5e-1

MAX, MIN,

DEF

<aard>

<discrete>

Arbitrary ASCII characters.

Discrete ASCII character parameters

<frequency>

<peak deviation in Hz>

<rate in Hz>

NRf+ type including frequency unit suffixes.

IMM, EXT,

MAN

1 KHZ, 1.0 HZ,

ΜHZ

89

Message terminators

Note

Command

Separators

AFG-2000 Series User Manual

<amplitude>

NRf+ type including voltage unit suffixs.

VPP, dBm,

Vrms

<offset>

<seconds>

NRf+ type including voltage unit suffixes.

V nS, uS, mS, S NRf+ type including time unit suffixes.

NRf type N/A

<percent>

<depth in percent>

LF CR

LF line feed code (new line) and carriage return. line feed code (new line)

^j or ^m should be used when using a terminal program.

Space

Colon (:)

A space is used to separate a parameter from a keyword/command header.

A colon is used to separate keywords on each node.

Semicolon (;)

A semicolon can be used to combine commands from different node levels.

For example:

SOURce1:PWM:SOURce?

SOURce:PULSe:WIDTh?

SOURce1:PWM:SOURce?;SOURce

:PULSe:WIDTh?

90

Comma (,)

REMOTE INTERFACE

When a command uses multiple parameters, a comma is used to separate the parameters.

For example:

SOURce:APPLy:SQUare 10KHZ,2.0

VPP,-1VDC

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AFG-2000 Series User Manual

Command List

System Commands ............................................................ 94

*IDN? ................................................................................... 94

*RST ..................................................................................... 94

Status Register Commands ................................................ 95

*CLS ..................................................................................... 95

Apply Commands .............................................................. 96

SOURce[1]:APPLy:SINusoid ................................................ 98

SOURce[1]:APPLy:SQUare ................................................... 98

SOURce[1]:APPLy:RAMP ..................................................... 99

SOURce[1]:APPLy:NOISe ..................................................... 99

SOURce[1]:APPLy:USER .................................................... 100

SOURce[1]:APPLy? ............................................................. 100

Output Commands .......................................................... 102

SOURce[1]:FUNCtion ........................................................ 102

SOURce[1]:FREQuency ...................................................... 103

SOURce[1]:AMPLitude ....................................................... 105

SOURce[1]:DCOffset .......................................................... 106

SOURce[1]:SQUare:DCYCle............................................... 106

SOURce[1]:RAMP:SYMMetry ............................................ 107

OUTPut .............................................................................. 108

SOURce[1]:VOLTage:UNIT ................................................ 109

Amplitude Modulation (AM) Commands ......................... 110

AM Overview ...................................................................... 110

SOURce[1]:AM:STATe ........................................................ 111

SOURce[1]:AM:SOURce .................................................... 111

SOURce[1]:AM:INTernal:FUNCtion .................................. 112

SOURce[1]:AM:INTernal:FREQuency ................................ 112

SOURce[1]:AM:DEPTh ....................................................... 113

Frequency Modulation (FM) Commands .......................... 114

FM Overview ...................................................................... 114

SOURce[1]:FM:STATe ........................................................ 114

SOURce[1]:FM:SOURce ..................................................... 115

SOURce[1]:FM:INTernal:FUNCtion .................................. 116

SOURce[1]:FM:INTernal:FREQuency ................................ 116

SOURce[1]:FM:DEViation .................................................. 117

Frequency-Shift Keying (FSK) Commands ........................ 119

FSK Overview ..................................................................... 119

SOURce[1]:FSKey:STATe .................................................... 119

SOURce[1]:FSKey:SOURce ................................................ 120

SOURce[1]:FSKey:FREQuency ........................................... 120

SOURce[1]:FSKey:INTernal:RATE ...................................... 121

92

REMOTE INTERFACE

Frequency Sweep Commands .......................................... 123

Sweep Overview ................................................................. 123

SOURce[1]:SWEep:STATe .................................................. 124

SOURce[1]:FREQuency:STARt ........................................... 124

SOURce[1]:FREQuency:STOP ............................................ 125

SOURce[1]:SWEep:SPACing............................................... 126

SOURce[1]:SWEep:RATE .................................................... 126

SOURce[1]:SWEep:SOURce ............................................... 127

Frequency Counter Commands ........................................ 128

COUNter:GATe .................................................................. 128

COUNter:STATe ................................................................. 128

COUNter:VALue? ............................................................... 129

Arbitrary Waveform Commands ....................................... 130

Arbitrary Waveform Overview ............................................ 130

SOURce[1]:FUNCtion USER .............................................. 131

DATA:DAC .......................................................................... 131

Save and Recall Commands ............................................. 133

*SAV ................................................................................... 133

*RCL ................................................................................... 133

93

System Commands

AFG-2000 Series User Manual

*IDN?

Query

Description

Query Syntax

Returns the function generator manufacturer, model number, serial number and firmware version number in the following format:

GW INSTEK,AFG-2025,SN:XXXXXXXX,Vm.mm

IDN?

Return parameter <string>

Query Example *IDN?

>GW INSTEK,AFG-2025,SN:XXXXXXXX,Vm.mm

Returns the identification of the function generator.

*RST

Description

Note

Syntax

Set

Reset the function generator to its factory default state.

Note the *RST command will not delete instrument save states/ARB waveforms in memory.

*RST

94

REMOTE INTERFACE

Status Register Commands

*CLS

Description

Syntax

Set

The *CLS command clears all the event registers, the error queue and cancels an *OPC command.

*CLS

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AFG-2000 Series User Manual

Apply Commands

The APPLy command has 5 different types of outputs (Sine, Square,

Ramp, Noise, User(ARB)). The Apply command is the quickest, easiest way to output waveforms remotely. Frequency, amplitude and offset can be specified for each function.

As only basic parameters can be set with the Apply command, other parameters, such as duty and symmetry use the instrument default values.

The Apply command will set the trigger source to immediate and disable modulation and sweep modes, if active. The command also turns on the output command SOURce[1]:OUTP ON.

As the frequency, amplitude and offset parameters are in nested square brackets, the amplitude can only be specified if the frequency has been specified and the offset can only be specified if the amplitude has been set. See the syntax below for the example:

SOURce1:APPLy:<function> [<frequency> [,<amplitude>

[,<offset>] ]]

Output Frequency

For the output frequency, MINimum, MAXimum and DEFault can be used instead of specifying a frequency. The default frequency for all functions is set to 1 kHz.

The maximum and minimum frequency depends on the function used and the model of the frequency generator. If a frequency output that is out of range is specified, the max/min frequency will be used instead. A ―-222‖ error will be generated from the remote terminal.

Function

Sine

Min frequency

0.1Hz

Max frequency

25MHz*

96

REMOTE INTERFACE

Square

Ramp

Noise

0.1Hz

0.1Hz

25MHz*

1MHz

Not applicable Not applicable

User (ARB) 0.1Hz 20MHz

*The AFG-2005/2105 is limited to 5MHz, the AFG-

2012/2112 is limited to 12MHz.

Output

Amplitude

When setting the amplitude, MINimum,

MAXimum and DEFault can be used instead of specifying an amplitude. The range depends on the function being used. The default amplitude for all functions is 100 mVpp (into 50Ω).

Vrms, dBm or Vpp units can be used to specify the output units to use with the current command.

Note, however, that the VOLT:UNIT command can be used to set the default units (Vrms, dBm,

Vpp) for all commands. This will be applicable to the Apply command when no unit is specified. The unit default is set to Vpp.

The output amplitude can be affected by the function and unit chosen. Vpp and Vrms or dBm values may have different maximum values due to differences such as crest factor. For example, a

5Vrms square wave will be adjusted to 3.536 Vrms for a sine wave.

DC Offset voltage

The offset parameter can be set to MINimum,

MAXimum or DEFault instead of a specified DC offset value. The default DC offset is 0 volts.

The maximum and minimum DC offset is limited by the output amplitude as shown below.

|Voffset| < Vmax – Vpp/2

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AFG-2000 Series User Manual

This means that the magnitude of the DC offset is determined by the output amplitude.

If the specified DC offset is out of range, the maximum/minimum offset will be set instead. A

―-222‖ error will be generated from the remote terminal.

SOURce[1]:APPLy:SINusoid

Description

Set

Outputs a sine wave when the command has executed. Frequency, amplitude and offset can also be set.

Syntax

Parameter

Example

SOURce[1]:APPLy:SINusoid [<frequency>

[,<amplitude> [,<offset>] ]]

<frequency>

<amplitude>

0.1Hz~25MHz*

1mV~10Vpp (50Ω)

<offset> -5V ~ +5V (50Ω)

*AFG-2005/2105 limited to 5MHz, AFG-2012/2112 limited to 12MHz.

SOURce1:APPL:SIN MAX, 3.0, -2.5

Outputs a 3Vpp sine wave at 25MHz (max frequency) with a -2.5V offset.

SOURce[1]:APPLy:SQUare

Description

Set

Outputs a square wave when the command has executed. Frequency, amplitude and offset can also be set. The duty cycle is fixed to 50%.

Syntax

Parameter

SOURce[1]:APPLy:SQUare [<frequency> [,<amplitude>

[,<offset>] ]]

<frequency>

<

amplitude

>

0.1Hz ~ 25MHz*

1mV~10V (50Ω)

98

Example

REMOTE INTERFACE

<offset> -5V ~ +5V (50Ω)

*AFG-2005/2105 limited to 5MHz, AFG-2012/2112 limited to 12MHz.

SOURce1:APPL:SQU MAX, DEF, DEF

Outputs a 100mVpp (DEF) square wave at 25MHz with 0 offset (DEF).

SOURce[1]:APPLy:RAMP

Description

Set

Outputs a ramp wave when the command has executed. Frequency, amplitude and offset can also be set. The symmetry is fixed to 100%.

Syntax SOURce[1]:APPLy:RAMP [<frequency> [,<amplitude>

[,<offset>] ]]

Parameter

Example

<frequency>

<

amplitude

>

<offset>

0.1Hz~1MHz

1mV~10V (50Ω)

-5V ~ +5V (50Ω)

SOUR1:APPL:RAMP 2KHZ,MAX,MAX

Sets the frequency to 2kHz and sets the amplitude and offset to the maximum.

SOURce[1]:APPLy:NOISe

Description

Set

Outputs Gaussian noise with a 20 MHz bandwidth. Amplitude and offset can also be set.

Note

The Frequency parameter is not used with the noise function; however a value (or DEFault) must

still be specified. The frequency is remembered for the next function used.

Syntax

Parameter

SOURce[1]:APPLy:NOISe [<frequency|DEFault>

[,<amplitude> [,<offset>] ]]

<frequency> 0.1Hz~25MHz*

<amplitude> 1mV~10V (50Ω)

99

Example

AFG-2000 Series User Manual

<offset> -5V ~ +5V (50Ω)

*AFG-2005/2105 limited to 5MHz, AFG-2012/2112 limited to 12MHz.

SOURce1:APPL:NOIS DEF, 5.0, 2.0

Sets the amplitude to 5 volts with an offset of 2 volts.

SOURce[1]:APPLy:USER

Description

Note

Set

Outputs an arbitrary waveform that is specified from the FUNC:USER command.

Frequency and amplitude values are not used with this function; however a value (or DEFault) must be specified. The values are remembered for the next function used.

Syntax

Parameter

Example

SOURce[1]:APPLy:USER [<frequency> [,<amplitude>

[,<offset>] ]]

<frequency>

<amplitude>

<offset>

0.1Hz~10MHz

1mV~10V (50Ω)

-5V ~ +5V (50Ω)

SOUR1:APPL:USER

Outputs the ARB waveform specified in the

FUNC:USER command.

SOURce[1]:APPLy?

Description

Note

Query Syntax

Query

Outputs a string with the current settings.

The returned string can be passed back, when appended to the Apply Command. This is intended to be used to return the function generator to a known state.

I.e., SOURce[1]:APPL:<passed back string>

SOURce[1]:APPLy?

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Return Parameter <string> Function(<NRf>), frequency(<NRf>), amplitude(<NRf>),offset(<NRf>)

Query Example SOUR1:APPL?

>SIN +5.0000000000000E+03,+3.0000E+00,-2.50E+00

Returns a string with the current function and parameters, Sine, 5kHz, 3Vpp, -2.5V offset.

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Output Commands

Unlike the Apply commands, the Output commands are low level commands to program the function generator.

This section describes the low-level commands used to program the function generator. Even though the APPLy command is the easiest way to program the function generator, it lacks the ability to change individual parameters. The Output commands on the other hand can be used to set individual parameters, or those parameters that cannot be programmed with the Apply command.

Set

SOURce[1]:FUNCtion

Description

Query

The FUNCtion command selects and outputs the selected output function. The User parameter outputs an arbitrary waveform previously set by the SOURce[1]:FUNC:USER command.

The previously set frequency, amplitude and offset values are used automatically.

Note

If the function mode is changed and the current frequency setting is not supported by the new mode, the frequency setting will be altered to the next highest value.

Vpp and Vrms or dBm amplitude values may have different maximum values due to differences such as crest factor. For example, if a 5Vrms square wave is changed to a sinewave, then the Vrms value is automatically adjusted to 3.536Vrms.

The modulation and sweep modes can only be used with some of the basic waveforms. If a mode is not supported, the conflicting mode will be disabled. See the table below.

Sine Square Ramp Noise ARB

AM

  

 

FM

  

 

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Syntax

Example

Query Syntax

FSK

SWEEP 

Return Parameter SIN, SQU, RAMP, NOIS,

USER

Query Example SOUR1:FUNC?

>SIN

Current output is sine.

SOURce[1]:FUNCtion {SINusoid|SQUare|RAMP

|NOISe |USER}

SOUR1:FUNC SIN

Sets the output as a sine function.

SOURce[1]:FUNCtion?

Returns the current output type.

SOURce[1]:FREQuency

Set

Query

Description

Note

Sets the output frequency for the

SOURce[1]:FUNCtion command. The query command returns the current frequency setting.

The maximum and minimum frequency depends on the function mode.

Sine, Square

Ramp

Noise

User

0.1Hz~25MHz*

0.1Hz ~ 1MHz

Not applicable

0.1Hz~10MHz*

*AFG-2005/2105 limited to 5MHz, AFG-2012/2112 limited to 12MHz.

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Syntax

Example

Query Syntax

If the function mode is changed and the current frequency setting is not supported by the new mode, the frequency setting will be altered to the next highest value.

The duty cycle of square waveforms depends on the frequency settings:

1% to 99% (frequency < 100KHz)

20% to 80% (100KHz < frequency < 5 MHz)

40% to 60% (5 MHz < frequency < 10 MHz)

50% (frequency > 10 MHz)

If the frequency is changed and the set duty cycle cannot support the new frequency, the highest duty cycle available at that frequency will be used.

A ―-221‖ error will be generated from the remote terminal.

SOURce[1]:FREQuency

{<frequency>|MINimum|MAXimum}

SOUR1:FREQ MAX

Sets the frequency to the maximum for the current mode.

SOURce[1]:FREQuency?

Return Parameter <NR3> Returns the frequency for the current mode.

Query Example SOUR1:FREQ? MAX

>+1.0000000000000E+03

The maximum frequency that can be set for the current function is 1MHz.

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SOURce[1]:AMPLitude

Description

Note

Set

Query

Sets the output amplitude for the

SOURce[1]:FUNCtion command. The query command returns the current amplitude settings.

The maximum and minimum amplitude depends on the output termination. The default amplitude for all functions is 100 mVpp (50Ω).

The offset and amplitude are related by the following equation.

|Voffset| < Vmax – Vpp/2

The output amplitude can be affected by the function and unit chosen. Vpp and Vrms or dBm values may have different maximum values due to differences such as crest factor. For example, a

5Vrms square wave will be adjusted to 3.536 Vrms for a sine wave.

The amplitude units can be explicitly used each time the SOURce[1]:AMPLitude command is used.

Alternatively, the VOLT:UNIT command can be used to set the amplitude units for all commands.

Syntax

Example

SOURce[1]:AMPLitude {< amplitude>

|MINimum|MAXimum}

SOUR1:AMPL MAX

Sets the amplitude to the maximum for the current mode.

Query Syntax SOURce[1]:AMPLitude? {MINimum|MAXimum}

Return Parameter <NR3> Returns the amplitude for the current mode.

Query Example SOUR1:AMPL? MAX

>+5.0000E+00

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The maximum amplitude that can be set for the current function is 5 volts.

Set

SOURce[1]:DCOffset

Description

Query

Sets or queries the DC offset for the current mode.

Note

The offset parameter can be set to MINimum or

MAXimum. The default offset is 0 volts. The offset is limited by the output amplitude as shown below.

|Voffset| < Vmax – Vpp/2

If the output specified is out of range, the maximum offset will be set.

The maximum offset is ±5V into 50Ω).

Syntax

Example

SOURce[1]:DCOffset {< offset>

|MINimum|MAXimum}

SOUR1:DCO MAX

Sets the offset to the maximum for the current mode.

Query Syntax SOURce[1]:DCOffset? {MINimum|MAXimum}

Return Parameter <NR3> Returns the offset for the current mode.

Query Example SOUR1:DCO?

>+3.0000E+00

The offset for the current mode is set to +3 volts.

Set

SOURce[1]:SQUare:DCYCle

Description

Note

Query

Sets or queries the duty cycle for square waves only. The setting is remembered if the function mode is changed. The default duty cycle is 50%.

The duty cycle of square waveforms depend on the frequency settings.

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1% to 99% (frequency < 100KHz)

20% to 80% (100KHz < frequency < 5 MHz)

40% to 60% (5 MHz < frequency < 10 MHz)

50% (frequency > 10 MHz

If the frequency is changed and the set duty cycle cannot support the new frequency, the highest duty cycle available at that frequency will be used.

A ―-221‖ error will be generated from the remote terminal.

For square waveforms, the Apply command and

AM/FM modulation modes ignore the duty cycle settings.

Syntax

Example

SOURce[1]:SQUare:DCYCle {< percent>

|MINimum|MAXimum}

SOUR1:SQU:DCYC MAX

Sets the duty cycle to the highest possible for the current frequency.

Query Syntax SOURce[1]:SQUare:DCYCle? {MINimum|MAXimum}

Return Parameter <NR3> Returns the duty cycle as a percentage.

Query Example SOUR1:SQU:DCYC?

>+5.00E+01

The duty cycle is set 50%.

Set

SOURce[1]:RAMP:SYMMetry

Description

Query

Sets or queries the symmetry for ramp waves only.

The setting is remembered if the function mode is changed. The default symmetry is 100%.

0% symmetry is a ramp waveform with a negative going transition. 100% symmetry is a ramp waveform with a positive going transition.

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100% 0%

Note

Syntax

For ramp waveforms, the Apply command and

AM/FM modulation modes ignore the current symmetry settings.

SOURce[1]:RAMP:SYMMetry {< percent>

|MINimum|MAXimum}

Example SOUR[1]:RAMP:SYMM MAX

Sets the symmetry to the 100%.

Query Syntax SOURce[1]:RAMP:SYMMetry?

{MINimum|MAXimum}

Return Parameter <NR3> Returns the symmetry as a percentage.

Query Example SOUR1:RAMP:SYMMetry?

>+1.0000E+02

The symmetry is set as 100%.

OUTPut

Set

Query

Description

Syntax

Example

Query Syntax

Return Parameter 1

0

Enables/Disables or queries the front panel output. The default is set to off.

OUTPut {OFF|ON}

OUTP ON

Turns the output on.

OUTPut?

ON

OFF

Query Example OUTP?

>1

The output is currently on.

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Set

SOURce[1]:VOLTage:UNIT

Description

Query

Sets or queries the output amplitude units. There are three types of units: VPP, VRMS and DBM. The

SOURce[1]:VOLTage:UNIT command does not set the offset units.

Note

Syntax

The units set with the VOLTage:UNIT command will be used as the default unit for all amplitude units unless a different unit is specifically used for a command, such as those used with the Apply commands.

SOURce[1]:VOLTage:UNIT {VPP|VRMS|DBM}

Example

Query Syntax

SOUR1:VOLT:UNIT VPP

Sets the amplitude units to Vpp.

SOURce[1]:VOLTage:UNIT?

Return Parameter VPP

VRMS

Vpp

Vrms

DBM dBm

Query Example SOUR1:VOLT:UNIT?

>VPP

The amplitude units are set to Vpp.

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Amplitude Modulation (AM) Commands

AM Overview

To successfully create an AM waveform, the following commands must be executed in order.

Enable AM

Modulation

Configure Carrier

1. Turn on AM modulation using the

SOURce[1]:AM:STAT ON command

2. Use the APPLy command to select a carrier waveform. Alternatively the equivalent

FUNC, FREQ, AMPL, and DCO commands can be used to create a carrier waveform with a designated frequency, amplitude and offset.

Sine, square or ramp can be used as the carrier wave.

Select

Modulation

Source

Select Shape

3. Select an internal or external modulation source using the SOURce[1]:AM:SOUR command.

4. Use the SOURce[1]:AM:INT:FUNC command to select a Sine, Square or Ramp modulating waveform. For internal sources only.

Set Modulating

Frequency

5. Set the modulating frequency using the

SOURce[1]:AM:INT:FREQ command. For internal sources only.

Set Modulation

Depth

6. Set the modulation depth using the

SOURce[1]:AM:DEPT command.

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Set

SOURce[1]:AM:STATe

Description

Note

Query

Sets or disables AM modulation. By default AM modulation is disabled. AM modulation must be enabled before setting other parameters.

As only one mode is allowed at any one time, other modulation modes (inc. Sweep/FSK) will be disabled when AM modulation is enabled.

Syntax

Example

Query Syntax

SOURce[1]:AM:STATe {OFF|ON}

SOUR1:AM:STAT ON

Enables AM modulation.

SOURce[1]:AM:STATe?

Return Parameter 0

1

Disabled (OFF)

Enabled (ON)

Query Example SOUR1:AM:STAT?

>1

AM modulation mode is currently enabled.

Set

SOURce[1]:AM:SOURce

Description

Note

Query

Sets or queries the modulation source as internal or external. Internal is the default modulation source.

If an external modulation source is selected, modulation depth is limited to ± 5V from the MOD input port on the rear panel. For example, if modulation depth is set to 100%, then the maximum amplitude is +5V, and the minimum amplitude is -5V.

Syntax

Example

SOURce[1]:AM:SOURce {INTernal|EXTernal}

SOUR1:AM:SOUR EXT

Sets the modulation source to external.

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Query Syntax SOURce[1]:AM:SOURce?

Return Parameter INT Internal

EXT External

Query Example SOUR1:AM:SOUR?

>INT

The modulation source is set to internal.

SOURce[1]:AM:INTernal:FUNCtion

Set

Query

Description

Note

Sets the shape of the modulating waveform from sine, square or ramp. The default shape is sine.

Square waveforms have a 50% duty cycle. Ramp waveforms have a symmetry of 100%.

Syntax

Example

Query Syntax

SOURce[1]:AM:INTernal:FUNCtion

{SINusoid|SQUare| RAMP }

SOUR1:AM:INT:FUNC SIN

Sets the AM modulating wave shape to sine.

SOURce[1]:AM:INTernal:FUNCtion?

Return Parameter SIN Sine

SQU

RAMP

Square

Ramp

Query Example SOUR1:AM:INT:FUNC?

>SIN

The shape for the modulating waveform is Sine.

SOURce[1]:AM:INTernal:FREQuency

Set

Query

Description

Syntax

Sets the frequency of the internal modulating waveform only. The default frequency is 100Hz.

SOURce[1]:AM:INTernal:FREQuency

{<frequency>|MINimum|MAXimum}

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Parameter

Example

Query Syntax

<frequency> 2 mHz~ 20 kHz

SOUR1:AM:INT:FREQ +1.0000E+02

Sets the modulating frequency to 100Hz.

SOURce[1]:AM:INTernal:FREQuency?

[MINimum|MAXimum]

Return Parameter <NR3> Returns the frequency in

Hz.

Query Example SOUR1:AM:INT:FREQ? MIN

>+1.0000E+02

Returns the minimum frequency allowed.

SOURce[1]:AM:DEPTh

Set

Query

Description

Note

Sets or queries the modulation depth for internal sources only. The default is 100%.

The function generator will not output more than

±5V, regardless of the modulation depth.

The modulation depth of an external source is controlled using the ±5V MOD input port on the rear panel, and not the SOURce[1]:AM:DEPTh command.

Syntax

Parameter

SOURce[1]:AM:DEPTh {<depth in percent>

|MINimum|MAXimum}

<depth in percent> 0~120%

Example

Query Syntax

SOUR1:AM:DEPT 50

Sets the modulation depth to 50%.

SOURce[1]:AM:DEPTh? [MINimum|MAXimum]

Return Parameter <NR3> Return the modulation depth as a percentage.

Query Example SOUR1:AM:DEPT?

>+1.0000E+02

The modulation depth is 100%.

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Frequency Modulation (FM) Commands

FM Overview

The following is an overview of the steps required to generate an

FM waveform.

Enable FM

Modulation

Configure Carrier

1. Turn on FM modulation using the

SOURce[1]: FM:STAT ON command.

2. Use the APPLy command to select a carrier waveform. Alternatively, the FUNC, FREQ,

AMPL, and DCO commands can be used to create a carrier waveform with a designated frequency, amplitude and offset.

Select

Modulation

Source

Select shape

3. Select an internal or external modulation source using the SOURce[1]:FM:SOUR command.

4. Use the SOURce[1]:FM:INT:FUNC command to select a sine, square or ramp modulating waveform. For internal sources only.

Set Modulating

Frequency

5. Set the modulating frequency using the

SOURce[1]: FM:INT:FREQ command. For internal sources only.

Set Peak

Frequency

Deviation

6. Use the SOURce[1]:FM:DEV command to set the frequency deviation.

SOURce[1]:FM:STATe

Description

Set

Query

Sets or disables FM modulation. By default FM modulation is disabled. FM modulation must be enabled before setting other parameters.

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Note

Syntax

Example

Query Syntax

As only one mode is allowed at any one time, other modes (AM, FSK, Sweep etc.) will be disabled when FM modulation is enabled.

SOUR[1]:FM:STATe {OFF|ON}

SOUR1:FM:STAT ON

Enables FM modulation.

SOURce[1]:FM:STATe?

Return Parameter 0 Disabled (OFF)

1 Enabled (ON)

Query Example SOUR1:FM:STAT?

>1

FM modulation mode is currently enabled.

SOURce[1]:FM:SOURce

Description

Note

Syntax

Example

Query Syntax

Set

Query

Sets or queries the modulation source as internal or external. Internal is the default modulation source.

If an external modulation source is selected, the frequency deviation is limited to ± 5V from the

MOD input port on the rear panel. For example, if frequency deviation is set to 100Hz, then +5V will increases the frequency by 100Hz.

SOURce[1]:FM:SOURce {INTernal|EXTernal}

SOUR1:FM:SOUR EXT

Sets the modulation source to external.

SOURce[1]:FM:SOURce?

Return Parameter INT

EXT

Internal

External

Query Example SOUR1:FM:SOUR?

>INT

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The modulation source is set to internal.

SOURce[1]:FM:INTernal:FUNCtion

Set

Query

Description

Note

Sets the shape of the modulating waveform from sine, square or ramp. The default shape is sine.

Square waveforms have a 50% duty cycle. Ramp waveforms have a symmetry of 100%.

Syntax

Example

SOURce[1]:FM:INTernal:FUNCtion

{SINusoid|SQUare|RAMP }

SOUR1:FM:INT:FUNC SIN

Sets the FM modulating wave shape to sine.

SOURce[1]:FM:INTernal:FUNCtion?

Query Syntax

Return Parameter SIN

SQU

Sine

Square

RAMP Ramp

Query Example SOUR1:FM:INT:FUNC?

>SIN

The shape for the modulating waveform is Sine.

SOURce[1]:FM:INTernal:FREQuency

Set

Query

Description

Syntax

Parameter

Example

Query Syntax

Sets the frequency of the internal modulating waveform only. The default frequency is 10Hz.

SOURce[1]:FM:INTernal:FREQuency

{<frequency>|MINimum|MAXimum}

<frequency> 2 mHz ~ 20 kHz

SOUR1:FM:INT:FREQ +1.0000E+02

Sets the modulating frequency to 100Hz.

SOURce[1]:FM:INTernal:FREQuency?

[MINimum|MAXimum]

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Return Parameter <NR3> Returns the frequency in Hz.

Query Example SOUR1:FM:INT:FREQ? MAX

>+2.0000E+04

Returns the maximum frequency allowed.

Set

SOURce[1]:FM:DEViation

Description

Query

Sets or queries the peak frequency deviation of the modulating waveform from the carrier waveform.

The default peak deviation is 100Hz.

The frequency deviation of external sources is controlled using the ±5V MOD INPUT terminal on the rear panel. A positive signal (>0~+5V) will increase the deviation (up to the set frequency deviation), whilst a negative voltage will reduce the deviation.

Note

The relationship of peak deviation to modulating frequency and carrier frequency is shown below.

Peak deviation = modulating frequency – carrier frequency.

The carrier frequency must be greater than or equal to the peak deviation frequency. The sum of the deviation and carrier frequency must not exceed the maximum frequency for a specific carrier shape + 1kHz. If an out of range deviation is set for any of the above conditions, the deviation will be automatically adjusted to the maximum value allowed and an ―out of range‖ error will be generated.

For square wave carrier waveforms, the deviation may cause the duty cycle frequency boundary to be exceeded. In these conditions the duty cycle will be adjusted to the maximum allowed and a ―-221‖ error will be generated.

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Syntax SOURce[1]:FM:DEViation {<peak deviation in

Hz>|MINimum|MAXimum}

Parameter

Example

Query Syntax

<peak deviation in Hz> DC ~ 25MHz*

DC~1MHz (Ramp)

*Limited to 12MHz for AFG-2112, 5MHz for

AFG-2105.

SOUR1:FM:DEV MAX

Sets the frequency deviation to the maximum value allowed.

SOURce[1]:FM:DEViation? [MINimum|MAXimum]

Return Parameter <NR3> Returns the frequency deviation in Hz.

Query Example SOURce1:FM:DEViation? MAX

>+1.0000E+06

The maximum frequency deviation for the current function is 1MHz.

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Frequency-Shift Keying (FSK) Commands

FSK Overview

The following is an overview of the steps required to generate an

FSK modulated waveform.

Enable FSK

Modulation

Configure Carrier

1. Turn on FSK modulation using the

SOURce[1]: FSK:STAT ON command.

2. Use the APPLy command to select a carrier waveform. Alternatively, the FUNC, FREQ,

AMPL, and DCO commands can be used to create a carrier waveform with a designated frequency, amplitude and offset. The carrier waveform can be sine, square or ramp.

Select FSK Source

3. Select an internal or external modulation source using the SOURce[1]:FSK:SOUR command.

Select FSK HOP

Frequency

Set FSK Rate

4. Set the hop frequency using the

SOURce[1]:FSK:FREQ command.

5. Use the SOURce[1]: FSK:INT:RATE command to set the FSK rate. The FSK rate can only be set for internal sources.

Set

SOURce[1]:FSKey:STATe

Description

Note

Syntax

Query

Turns FSK Modulation on or off. By default FSK modulation is off.

As only one mode is allowed at any one time, other modes (AM, FM, Sweep etc.) will be disabled when FSK modulation is enabled.

SOURce[1]:FSKey:STATe {OFF|ON}

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Example SOUR1:FSK:STAT ON

Enables FSK modulation.

Query Syntax SOURce[1]:FSKey:STATe?

Return Parameter 0 Disabled (OFF)

1 Enabled (ON)

Query Example SOUR1:FSK:STAT?

>1

FSK modulation is currently enabled.

SOURce[1]:FSKey:SOURce

Set

Query

Description

Note

Sets or queries the FSK source as internal or external. Internal is the default source.

If an external FSK source is selected, FSK rate is controlled by the Trigger input port on the rear panel.

Syntax

Example

Query Syntax

SOURce[1]:FSKey:SOURce {INTernal|EXTernal}

SOUR1:FSK:SOUR EXT

Sets the FSK source to external.

SOURce[1]:FSKey:SOURce?

Return Parameter INT Internal

EXT External

Query Example SOUR1:FSK:SOUR?

>INT

The FSK source is set to internal.

SOURce[1]:FSKey:FREQuency

Set

Query

Description

Sets the FSK hop frequency. The default hop frequency is set to 100Hz.

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Note

Syntax

For FSK, the modulating waveform is a square wave with a duty cycle of 50%.

SOURce[1]:FSKey:FREQuency

{<frequency>|MINimum|MAXimum}

Parameter

Example

<frequency> 0.1Hz~ 25MHz*

0.1Hz~ 1MHz (Ramp)

*AFG-2112 limited to 12MHz, AFG-2105 limited to

5MHz.

SOUR1:FSK:FREQ +1.0000E+02

Sets the FSK hop frequency to 100Hz.

Query Syntax SOURce[1]:FSKey:FREQuency?

[MINimum|MAXimum]

Return Parameter <NR3> Returns the frequency in Hz.

Query Example SOUR1:FSK:FREQ? MAX

>+2.0000E+07

Returns the maximum hop frequency allowed.

SOURce[1]:FSKey:INTernal:RATE

Set

Query

Description

Sets or queries the FSK rate for internal sources only.

External sources will ignore this command.

Note

Syntax SOURce[1]:FSKey:INTernal:RATE {<rate in Hz>

|MINimum|MAXimum}

Parameter

Example

<rate in Hz> 2 mHz~100 kHz

SOUR1:FSK:INT:RATE MAX

Sets the rate to the maximum (100kHz).

Query Syntax SOURce[1]:FSKey:INTernal:RATE?

[MINimum|MAXimum]

Return Parameter <NR3> Returns the FSK rate in Hz.

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Query example SOUR1:FSK:INT:RATE?

>+1.0000E+05

Returns the FSK rate (100kHz).

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Frequency Sweep Commands

Sweep Overview

Below shows the order in which commands must be executed to perform a sweep.

Enable Sweep

Mode

Select waveform shape, amplitude and offset

1. Turn on Sweep mode using the

SOURce[1]: SWE:STAT ON command.

2. Use the APPLy command to select the waveform shape. Alternatively, the FUNC,

FREQ, AMPL, and DCO commands can be used to create a waveform (sine, square, ramp) with a designated frequency, amplitude and offset.

Select Sweep

Boundaries

3. Set the frequency boundaries by setting the start and stop frequencies.

Start~Stop

Use the SOURce[1]:FREQ:STAR and SOURce[1]:FREQ:STOP to set the start and stop frequencies. To sweep up, set the stop frequency higher than the start frequency. To sweep down, set the start frequency higher than the stop frequency.

Select Sweep

Mode

Select Sweep

Time

Select the sweep trigger source

4. Choose Linear or Logarithmic spacing using the SOURce[1]:SWE:SPAC command.

5. Choose the sweep time (rate) using the

SOURce[1]:SWE:TIME command.

6. Select an internal or external sweep trigger source using the SOURce[1]:SOUR command.

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SOURce[1]:SWEep:STATe

Set

Query

Description

Note

Sets or disables Sweep mode. By default sweep is disabled. Sweep must be enabled before setting other parameters.

Any modes will be disabled if sweep mode is enabled.

Syntax

Example

SOURce[1]:SWEep:STATe {OFF|ON}

SOUR1:SWE:STAT ON

Enables sweep mode.

Query Syntax SOURce[1]:SWEep:STATe?

Return Parameter 0 Disabled (OFF)

1 Enabled (ON)

Query Example SOUR1:SWE:STAT?

>1

Sweep mode is currently enabled.

Set

SOURce[1]:FREQuency:STARt

Description

Query

Sets the start frequency of the sweep. 100Hz is the default start frequency.

Note

To sweep up set the stop frequency higher than the start frequency. Set the stop frequency lower than the start frequency to sweep down.

Syntax

Parameter

SOURce[1]:FREQuency:STARt

{<frequency>|MINimum|MAXimum}

<frequency> 0.1Hz ~ 25MHz*

0.1Hz ~ 1MHz (Ramp)

*AFG-2112 limited to 12MHz, AFG-2105 limited to

5MHz.

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Example

Query Syntax

SOUR1:FREQ:STAR +2.0000E+03

Sets the start frequency to 2kHz.

SOURce[1]:FREQuency:STARt? [MINimum|

MAXimum]

Return Parameter <NR3> Returns the start frequency in Hz.

Query Example SOUR1:FREQ:STAR? MAX

>+2.0000E+07

Returns the maximum start frequency allowed.

Set

SOURce[1]:FREQuency:STOP

Description

Note

Query

Sets the stop frequency of the sweep. 1 kHz is the default start frequency.

To sweep up set the stop frequency higher than the start frequency. Set the stop frequency lower than the start frequency to sweep down.

Syntax SOURce[1]:FREQuency:STOP

{<frequency>|MINimum|MAXimum}

Parameter <frequency> 0.1Hz ~ 25MHz*

0.1Hz ~ 1MHz (Ramp)

*AFG-2112 limited to 12MHz, AFG-2105 limited to

5MHz.

Query Example SOUR1:FREQ:STOP +2.0000E+03

Sets the stop frequency to 2kHz.

Query Syntax SOURce[1]:FREQuency:STOP? [MINimum|

MAXimum]

Return Parameter <NR3>

Example

Returns the stop frequency in Hz.

SOUR1:FREQ:STOP? MAX

>+2.0000E+07

Returns the maximum stop frequency allowed.

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SOURce[1]:SWEep:SPACing

Set

Query

Description

Syntax

Example

Query Syntax

Sets linear or logarithmic sweep spacing. The default spacing is linear.

SOURce[1]:SWEep:SPACing {LINear|LOGarithmic}

SOUR1:SWE:SPAC LIN

Sets the spacing to linear.

SOURce[1]:SWEep:SPACing?

Return Parameter LIN Linear spacing

LOG Logarithmic spacing

Query Example SOUR1:SWE:SPAC?

>LIN

The spacing is currently set as linear.

SOURce[1]:SWEep:RATE

Set

Query

Description

Note

Syntax

Sets or queries the sweep rate. The default sweep rate is 100 Hz. This command is the equivalent to using the Rate function on the front panel.

The function generator automatically determines the number of frequency points that are used for the sweep based on the sweep rate.

SOURce[1]:SWEep:RATE

{<Hz>|MINimum|MAXimum}

Parameter

Example

Query Syntax

<Hz> 2mHz ~1kHz (equivalent to a sweep time of 500s ~ 1ms)

SOUR1:SWE:RATE +1.0000E+00

Sets the rate to 1 Hz (1 second).

SOURce[1]:SWEep:RATE? {<Hz>|

MINimum|MAXimum}

Return Parameter <NR3> Returns sweep rate in Hz.

126

REMOTE INTERFACE

Query Example SOUR1:SWE:RATE?

>+2.0000000E+01

Returns the sweep rate (20 Hz).

SOURce[1]:SWEep:SOURce

Set

Query

Description

Note

Syntax

Example

Sets or queries the trigger source as immediate

(internal) or external. Immediate (internal) is the default trigger source. IMMediate will constantly output a swept waveform. EXTernal will output a swept waveform after each external trigger pulse

(TTL positive edge).

If EXTernal is selected, the trigger period must be greater than the sweep time + 125nS.

SOURce[1]: SWEep:SOURce {IMMediate|EXTernal }

SOUR1: SWE:SOUR EXT

Sets the sweep source to external.

SOURce[1]: SWEep:SOURce?

Query Syntax

Return Parameter IMM

EXT

Immediate

External

Query Example SOUR1:SWE:SOUR?

>IMM

The sweep source is set to immediate.

127

AFG-2000 Series User Manual

Frequency Counter Commands

COUNter:GATe

Description

Set

Query

Sets or queries the gate time for the frequency counter function.

Note

Syntax

Parameter

Example

Query Syntax

The counter function is only applicable for the

AFG-21XX models.

COUNter:GATe <seconds>

<seconds> 0.01S, 0.1S, 1S, 10S

COUN:GAT 10S

Sets the gate time to 10 seconds.

COUNter:GATe?

Return Parameter <NR3> Returns the gate time in seconds.

Query Example COUN:GAT?

>1.000E-02

The gate time is current set to 0.01 second.

COUNter:STATe

Set

Query

Description

Syntax

Turns the frequency counter on/off.

COUNter:STATe [ON/OFF]

Note

Parameter

Example

Query Syntax

128

The counter function is only applicable for the

AFG-21XX models.

ON Turns the counter function on.

OFF Turns the counter function off.

COUN:STAT ON

Turns the frequency counter on.

COUNter:STATe?

REMOTE INTERFACE

Return Parameter 0

1

Query Example COUN:STAT?

>1

Counter is on.

Counter function is off.

Counter function is on.

COUNter:VALue?

Description

Queries the counter frequency.

Query

Note

Syntax

The counter function is only applicable for the

AFG-21XX models.

COUNter:VALue?

Return Parameter <NR3>

Example COUN:VAL?

Returns the counter frequency.

>1.000E+03

The counter frequency is 1kHz.

129

AFG-2000 Series User Manual

Arbitrary Waveform Commands

Arbitrary Waveform Overview

Use the steps below to output an arbitrary waveform over the remote interface.

Output Arbitrary

Waveform

1. Use the SOURce[1]:FUNCtion USER command to output the arbitrary waveform currently selected in memory.

Select Waveform

Frequency, amplitude and offset

Load Waveform

Data

2. Use the APPLy command to select frequency, amplitude and DC offset. Alternatively, the

FUNC, FREQ, AMPL, and DCO commands can be used.

3. Waveform data (4k points per waveform) can be downloaded into volatile memory using the DATA:DAC command. Binary integer or decimal integer values in the range of ± 511 can be used.

Set Waveform

Rate

4. The waveform rate is the product of the number of points in the waveform and the waveform frequency.

Rate = Frequency × # points

Range: Rate:

Frequency:

# points:

0.1Hz ~ 20MHz

0.1Hz ~ 10MHz

2~4096

130

REMOTE INTERFACE

SOURce[1]:FUNCtion USER

Set

Query

Description

Syntax

Example

Use the SOURce[1]:FUNCtion USER command to output the arbitrary waveform currently selected in memory. The waveform is output with the current frequency, amplitude and offset settings.

The query returns the current output.

SOURce[1]:FUNCtion USER

SOUR1:FUNC USER

Selects and outputs the current waveform in memory.

Query Syntax SOURce[1]:FUNCtion?

Return Parameter SIN

Sine wave

SQU

RAMP

NOIS

ARB

Square wave

Ramp wave

Noise wave

Arbitrary wave

Query Example SOURce1:FUNCtion?

>SQU

A square waveform is the current output.

DATA:DAC

Description

Note

Set

The DATA:DAC command is used to download binary or decimal integer values into memory using the IEEE-488.2 binary block format or as an ordered list of values. After the values have been downloaded into memory the

SOURce[1]:FUNCtion USER command can be used to output the ARB waveform in memory.

The integer values (±511) correspond to the maximum and minimum peak amplitudes of the

131

Syntax

Parameter

Example1

Example2

AFG-2000 Series User Manual

waveform. For instance, for a waveform with an amplitude of 5Vpp (0 offset), the value 511 is the equivalent of 2.5 Volts and -511 is the equivalent of

-2.5V. If the integer values do not span the full output range, the peak amplitude will be limited.

The IEEE-488.2 binary block format is comprised of three parts:

#216

a. Initialization character (#)

ab c

b. Digit length (in ASCII) of the number of bytes c. Number of bytes

IEEE 488.2 binary block format uses two bytes to represent waveform data (16 bit integer). Therefore the number of bytes is always twice the number of data points. In the example above, the data block represents 8 data points.

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

<start> Start address of the arbitrary waveform

<binary block>

<value>

Points 2~4096 in binary block format

Decimal or integer values

±511

DATA:DAC VOLATILE, 1000, #216 Binary Data

The command above downloads 8 integer points stored in 16 bytes to memory 1000 using the binary block format.

DATA:DAC VOLATILE, 1000, 511, 206, 0, -206, -511,

-206, 0, 206

The command above downloads the data values

(511, 206, 0, -206, -511, -206, 0, 206) to address 1000 using the ordered list method.

132

REMOTE INTERFACE

Save and Recall Commands

Up to 10 different instrument states can be stored to non-volatile memory (# 0~9) and up to 10 different ARB waveforms can be saved to memory locations 10~19.

*SAV

Description

Note

Syntax

Parameter

Example

Set

Saves the current instrument state to a specified save location or an ARB waveform to the specified location. When a state is saved, all the current instrument settings, functions, modulation parameters and waveforms are also saved.

Memory locations 0~9, save the instrument state only, whilst memory locations 10~19 save ARB data.

The *RST command will not delete saved instrument states from memory.

*SAV {NR1}

0~9 Save state

10~19

*SAV 0

Save ARB data

Save the instrument state to memory location 0.

*RCL

Description

Syntax

Parameter

Set

Recall previously saved instrument states from memory locations 0~9 or recall the previously saved ARB waveforms from memory locations

10~19.

*RCL {NR1}

0~9

10~19

Recall state

Recall ARB data

133

Example

AFG-2000 Series User Manual

*RCL 0

Recall the instrument state from memory location

0 (assuming location 0 has been previously saved).

134

APPENDIX

A

PPENDIX

Error Messages

The AFG-2000 has a number of specific error codes. If a setting error occurs whilst using the function generator, an error message will be momentarily displayed on the screen.

Interface Error Messages

E07

E08

E09

E10

E11

E12

E13

E14

Error code

E01

E02

E03

E04

E05

E06

Description

Frequency forced duty cycle change.

Frequency reduced for ramp function

Frequency made compatible with FM

Frequency made compatible with FSK

Frequency made compatible with Sweep

Mod function cannot be performed under current setting

Frequency over range

Frequency over resolution

Amplitude over range

Amplitude over resolution

Offset over range

Offset over resolution

Duty over range

Duty over resolution

135

E33

E34

E35

E36

E37

E38

E26

E27

E28

E29

E30

E31

E32

E39

E40

E41

E19

E20

E21

E22

E23

E24

E25

E15

E16

E17

E18

136

AFG-2000 Series User Manual

ARB frequency over range

ARB frequency over resolution

ARB rate over range

ARB rate over resolution

ARB point over range

ARB point over resolution

ARB value over range

ARB value over resolution

Mod rate over range

Mod rate over resolution

Mod sym over range

Mod sym over resolution

AM depth over range

AM depth over resolution

FM deviation over range

FM deviation over resolution

FSK hop frequency over range

FSK hop frequency over resolution

Sweep frequency over range

Sweep frequency over resolution

Sweep rate over range

Sweep rate over resolution

Save setting over setting number range

Recall setting over setting number range

Recall set has no data

Value over resolution

Queue overflow

APPENDIX

AFG-2000 Series Specifications

The specifications apply when the function generator is powered on for at least 30 minutes under +20°C~+30°C.

AFG-2000 models

Waveforms

Arbitrary Functions

Sample Rate

Repetition Rate

Waveform Length

Amplitude

Resolution

Non-Volatile

Memory

Frequency Characteristics

Range Sine

2005 2012 2025 2105 2112 2125

Sine, Square, Ramp, Noise, ARB

20 MSa/s

10MHz

4k points

10 bits

4k points

Square

Resolution

Accuracy

Triangle, Ramp

Stability

Aging

Tolerance

Output Characteristics

Amplitude Range

Accuracy

Resolution

Flatness

Units

0.1Hz~

5MHz

0.1Hz~

5MHz

0.1Hz~

12MHz

0.1Hz~

12MHz

0.1Hz~

25MHz

0.1Hz~

25MHz

0.1Hz~

5MHz

0.1Hz~

5MHz

0.1Hz~

12MHz

0.1Hz~

12MHz

0.1Hz~

25MHz

0.1Hz~

25MHz

1MHz

0.1Hz

±20 ppm

±1 ppm, per 1 year

≤ 1 mHz

1 mVpp to 10 Vpp (into 50Ω)

2 mVpp to 20 Vpp (open-circuit)

1 mVpp to 5 Vpp (into 50Ω) for 20MHz-

25MHz

2 mVpp to 10 Vpp (open-circuit) for

20MHz-25MHz

± 2% of setting ±1 mVpp

(at 1 kHz)

1 mV or 3 digits

± 1% (0.1dB) ≤100kHz

± 3% (0.3 dB) ≤5MHz

± 5% (0.4 dB) ≤12MHz

±20%(2dB)≤20MHz

± 5% (0.4 dB) ≤25MHz

(sine wave relative to 1 kHz)

Vpp, Vrms, dBm

137

AFG-2000 Series User Manual

Offset Range

Accuracy

Waveform Output Impedance

Attenuator

Protection

SYNC Output Level

Impedance

Fan Out

Rise of Fall Time

Sine wave Characteristics

Harmonic distortion

Square wave Characteristics

Rise/Fall Time

Overshoot

Asymmetry

Variable duty

Cycle

Ramp Characteristics

Linearity

Variable

Symmetry

±5 Vpk ac +dc (into 50Ω)

±10Vpk ac +dc (Open circuit)

±2.5 Vpk ac +dc (into 50Ω) for 20MHz-

25MHz

±5Vpk ac +dc (Open circuit) for 20MHz-

25MHz

2% of setting + 5 mV+ 0.5% of amplitude

50Ω typical (fixed)

> 300kΩ (output disabled)

Short-circuit protected

Overload relay automatically disables main output

TTL-compatible into>1kΩ

50Ω nominal

≤ 25ns

–55 dBc

DC ~ 200kHz, Ampl > 0.1Vpp

–50 dBc

200kHz ~ 1MHz, Ampl > 0.1Vpp

–35 dBc

1MHz ~ 5MHz, Ampl > 0.1Vpp

–30 dBc

5MHz ~ 25MHz, Ampl > 0.1Vpp

≤25ns at maximum output.

(into 50

Ω load)

<5%

1% of period +1 ns

1.0% to 99.0% ≤100kHz

20.0% to 80.0% ≤ 5MHz

40.0% to 60.0% ≤ 10MHz

50% ≤ 25MHz

< 0.1% of peak output

0% to 100% (0.1% Resolution)

138

FSK

Sweep

AM Modulation

FM Modulation

Carrier Waveforms

Modulating

Waveforms

Modulating

Frequency

Depth

Source

Carrier Waveforms

Modulating

Waveforms

Modulating

Frequency

Peak Deviation

Source

Waveforms

Type

Start/Stop Freq

Sweep Time

Source

Carrier Waveforms

Modulating

Waveforms

Modulation Rate

Frequency Range

Source

APPENDIX

Sine, Square,

Triangle

Sine, Square,

Triangle

2mHz to

20kHz (Int)

DC to 20kHz (Ext)

0% to 120.0%

Internal / External

Sine, Square,

Triangle

Sine, Square,

Triangle

2mHz to

20kHz (Int)

DC to 20kHz (Ext)

DC to Max

Frequency

Internal / External

Sine, Square,

Triangle

Linear or

Logarithmic

0.1Hz to Max

Frequency

1ms to 500s

Internal / External

Sine, Square,

Triangle

50% duty cycle square

2mHz to 100 kHz

(INT)

DC to 100 kHz(EXT)

0.1Hz to Max

Frequency

Internal / External

139

AFG-2000 Series User Manual

Frequency Counter

Save/Recall

Interface

Display

Range

Accuracy

Time Base

Resolution

Input Impedance

Sensitivity

General Specifications

Power Source

Power

Consumption

Operating

Environment

5Hz to 150MHz

Time Base accuracy±1count

±20ppm (23˚C

±5˚C) after 30 minutes warm up

The maximum resolution is:

100nHz for 1Hz,

0.1Hz for 100MHz.

1kΩ/1pf

35mVrms ~ 30Vms

(5Hz to 150MHz)

10 Groups of Setting Memories

(Locations 0~9 only for instrument state,

Locations 10~19 only for ARB data)

USB (Device)

LCD

AC100~240V, 50~60Hz

25 VA (Max)

Temperature to satisfy the specification :

18 ~ 28˚C

Operating temperature :

0 ~ 40˚C

Relative Humidity:

≤ 80%, 0 ~ 40˚C

≤ 70%, 35 ~ 40˚C

Installation category: CAT Ⅱ

2000 Meters Operating

Altitude

Storage

Temperature

Dimensions

(WxHxD)

Weight

Accessories

-10~70˚C, Humidity: ≤

266(W) x 107(H) x 293(D) mm

Approx. 2.5kg

GTL-101× 1

80%

GTL-101× 2

Quick Start Guide ×1

CD (user manual + software) ×1

Power cord×1

140

APPENDIX

EC Declaration of Conformity

We

GOOD WILL INSTRUMENT CO., LTD.

No.7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan

GOOD WILL INSTRUMENT (SUZHOU) CO., LTD.

No. 69, Lushan Road, Suzhou New District Jiangsu, China declares that the below mentioned product

AFG-2005, AFG-2105, AFG-2012, AFG-2112, AFG-2025, AFG-2125

Are herewith confirmed to comply with the requirements set out in the

Council Directive on the Approximation of the Law of Member States relating to Electromagnetic Compatibility (2004/108/EC) and Low

Voltage Equipment Directive (2006/95/EC). For the evaluation regarding the Electromagnetic Compatibility and Low Voltage

Equipment Directive, the following standards were applied:

EMC

EN 61326-1 :

Conducted and Radiated Emissions

EN 55011: 2009+A1:2010

Current Harmonic

EN 61000-3-2: 2006+A2:2009

Voltage Fluctuation

EN 61000-3-3: 2008

Electrical equipment for measurement, control and laboratory use –– EMC requirements (2006)

Electrostatic Discharge

EN 61000-4-2: 2008

Radiated Immunity

EN 61000-4-3: 2006+ A2:2010

Electrical Fast Transients

EN 61000-4-4: 2004+A1:2010

-------------------------

-------------------------

-------------------------

-------------------------

Surge Immunity

EN 61000-4-5: 2005

Conducted Susceptibility

EN 61000-4-6: 2008

Power Frequency Magnetic Field

EN 61000-4-8: 2009

Voltage Dips/ Interrupts

EN 61000-4-11: 2004

Safety

Low Voltage Equipment Directive 2006/95/EC

Safety Requirements

EN 61010-1: 2010

141

AFG-2000 Series User Manual

I

NDEX

Caution symbol ........................... 3

Cleaning the instrument ............. 5

Declaration of conformity ...... 141

Default settings .......................... 32

Digital inputs ............................. 19

Display diagram ......................................... 15

Disposal symbol ............................................. 4

Disposal instructions................... 6

EN61010 measurement category .................. 4 pollution degree ............................. 5

Environment safety instructions .......................... 5

Front panel diagram ................. 10

Function keys key overview ................................ 13

Fuse type .................................................. 5

Ground symbol ............................................. 3

Interface

Error messages ........................... 135

List of features ............................. 9

Modulation

AM ................................................. 43

FM .................................................. 51

FSK ................................................. 59

Operation

AM ................................................. 43

AM Carrier Amplitude ................ 45

AM Carrier Frequency ................. 44

AM Carrier Wave ......................... 44

AM Modulation Depth ................ 48

AM Modulation frequency ......... 47

AM Modulation Source ............... 49

AM Rate......................................... 47

142

AM Shape wave ........................... 46

Amplitude .................................... 37

ARB ............................................... 73

Duty ............................................... 39

FM .................................................. 51

FM Carrier Amplitude ................ 53

FM Carrier Frequency ................. 53

FM Carrier Wave ......................... 52

FM Frequency Deviation ............ 56

FM Modulation Source ............... 57

FM Rate ......................................... 55

FM Shape wave ............................ 55

Frequency ..................................... 36

Frequency Counter ...................... 75

FSK ................................................ 59

FSK Carrier Amplitude ............... 62

FSK Carrier Frequency ................ 61

FSK Carrier Wave ........................ 60

FSK Hop Frequency .................... 63

FSK Modulation Source .............. 65

FSK Rate ........................................ 64

Gate Time...................................... 76

Offset ....................................... 38, 42

Save/Recall ARB Waveform ...... 81

Save/Recall State ......................... 81

Sine ................................................ 36

Sweep ............................................ 67

Sweep Mode ................................. 70

Sweep Rate ................................... 70

Sweep Start Frequency ................ 68

Sweep Stop Frequency ................ 68

Sweep Trigger Source.................. 72

Symmetry ..................................... 39

Operation menu ......................... 34

Output on/off ............................................ 42

Power on/off safety instruction ........................... 4

Power up ..................................... 17

Quick reference .......................... 18

Rear panel diagram ................... 14

Remote Commands

AM Commands .......................... 110

Apply Commands ........................96

ARB Commands ......................... 130

FM Commands ........................... 114

Frequency Counter Commands 128

FSK Commands .......................... 119

Output Commands .................... 102

Save/Recall Commands ............ 133

Status Register Commands .........95

Sweep Commands ...................... 123

System Commands .......................94

Remote interface ........................ 83 functionality check .......................86

Syntax.............................................86 terminal connection ......................85

USB Connection ............................85

INDEX

Service operation about disassembly.......................... 4

Setting up the instrument ......... 16 software download .................... 86

Specifications ............................ 137

SYNC Signal

AM ................................................. 79

ARB ................................................ 78

FM .................................................. 79

FSK ................................................. 80

Ramp ............................................. 78

Sine ................................................ 77

Square ............................................ 78

Sweep ............................................ 80

UK power cord ............................. 7

USB remote control interface .............. 85

Warning symbol ........................... 3

143

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