Hewlett-Packard 8165A Programmable Signal Source Operating and Service Manual

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Документ
 OPERATING AND SERVICE MANUAL
(including Options 002 and 907 to
SERIAL NUMBERS
This manual applies directly teo instruments with
serial number 1904 G 00601 and higher, Any changes
made in instruments having serial numbers higher than
the above number will be found in a “Manual Changes”
supplement supplied with this manual. Be sure to
examine this supplement for any changes which apply to
your instrument and record these changes in the manual,
Backdating information for instruments with ower
serial numbers will be found in Section 7.
&copy; HEWLETT-PACKARD GMBH 1979
HERRENBERGER STR. 110, D-7030 BOBLINGEN
FEDERAL REPUBLIC OF GERMANY
MANUAL PART NO, 08165-80003
Microfiche Part No, 08165-95003
Printed: Oct, 1979
CERTIFICATION
Hewlett-Packard Company certifies that this product met its published specifications at the
time of shipment from the factory. Hewlett-Packard further certifies that its calibration
measurements are traceable to the United States National Bureau of Standards, to the extent
allowed by the Bureau's calibration facility, and to the calibration facilities of other Interna-
tional Standards Organization members.
WARRANTY
This Hewlett-Packard product is warranted against defects in material and workmanship for a
period of one year from date of shipment. During the warranty period, Hewlett-Packard
Company will, at its option, either repair or replace products which prove to be defective.
HP warrants that its software and firmware designated by HP for use with an instrument
will execute its programming instructions when properly installed on that instrument.
HP does not warrant that the operation of the instrument, or software, or firmware will
be uninterrupted or error free.
For products returned to HP for warranty service, Buyer shall prepay shipping charges to HP
and HP shall pay shipping charges to return the product to Buver, However, Buyer shall pay
ali shipping charges, duties, and taxes for products returned to HP from another country.
LIMITATION OF WARRANTY |
The foregoing warranty shall not apply to defects resulting from improper or inadequate
maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized modification
or misuse, operation outside of the environmental specifications for the product, or improper
site preparation or maintenance,
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HP SPECIFICALLY DISCLAIMS
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTI-
CULAR PURPOSE.
EXCLUSIVE REMEDIES
THE REMEDIES PROVIDED HEREIN ARE BUYER'S SOLE AND EXCLUSIVE REMEDIES.
HP SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY
OTHER LEGAL THEORY,
ASSISTANCE
Product maintenance agreements and other customer assistance agreements are available for
Hewlett-Packard products.
For any assistance, contact your nearest Hewlett-Packard Sales and Service Office.
Addresses are provided at the back of this manual.
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. . о 1 0 o o . | =
О 1 о о о о o О о о о о : о О ПО о
о ‘ o nn О 0 . . | 1. о o e
о o | nn 2 о &agrave; ; о О E
HAT E HE я у а 2 # &Eacute; i a о fic в RENTA OT о | Е | Ч
о . о о О о 0 О ED e
o o IE
General Information Model 8165A
=
8”
E
“3
Figure 1-1, 8165A {with Option 002 fitted} and Supplied Accessories
Front handle Rack flange with front handle Rack flange
Order Option 907 Order Option 909 Order Option 908
{H.P. Part No. (HP, Part No, {H.P. Part No.
5061-0089) 5061-0083) 5061-0077)
Figure 1—2. Available Rack Mounting Accessories
Model 8165A
— SECTION
1-1 INTRODUCTION
1-2 This Operating and Service Manual contains in-
formation required to install, operate, test, adjust and
service the Hewlett-Packard Model 8165A. Figure 1—1
shows the mainframe and accessories supplied. This
section covers instrument identification, description,
accessories, specifications, and other basic information.
1-3 A Microfiche version of this manual is avatlabie
on 4 x 6 inch microfilm transparencies {order number
on title page). Each microfilm contains up to 60 photo-
duplicates of the manual pages. The microfiche package
also includes the latest Manual Changes supplement as
well as ail pertinent Service Notes.
1-4 SPECIFICATIONS
1-5 Instrument specifications are listed in Table 1—2.
- These specifications are the performance standards or
— limits against which the instrument is tested.
1-6 SAFETY CONSIDERATIONS
1—7 The Mode! 8165A is a Safety Class 1 instrument
(it has an exposed metal chassis that is directly connected
to earth via the power supply cable).
1-8 This operating and service manual contains in-
formation, cautions, and warnings which must be follow-
ed by the user to ensure safe operation and to maintain
the instrument in a safe condition.
1-9 INSTRUMENTS COVERED BY
MANUAL
1-10 Attached to the rear of this instrument is a serial
number plate (Figure 1-3). The first four digits of the
serial number oniy change when there is a significant
change to the instrument. The last five digits are assigned
to instruments sequentially. The contents of this manual
apply directly to the instrument serial number quoted
on the title page. For instruments with lower serial num-
bers, refer to the backdating information in Section VI
of this manual. For instruments with higher serial num-
bers, refer to the Manual Change sheets at the end of
this manual. in addition to change information, the
General Information
ATION
Manual Change sheets may contain information for
correcting errors in the manual. To keep this manual as
up-to-date and accurate as possible, Hewlett-Packard re-
commends that you periodically request the latest Man-
ual Change supplement. The supplement for this manual
is identified with this manuai's print date and part num-
ber, both of which appear on this manual’s title page.
Complimentary copies of the supplement are available
from Hewlett-Packard.
HEWLETT - PACKARD GmbH
15366 0006
BOBLINGEN .......
2
Figure 1—3. Serial Number Plate
1-11 DESCRIPTION
1-12 The HP Model 8165A Programmable Signal
Source provides sine, triangle and square waveforms in
the frequency range 1 mHz to 50 MHz, Operating modes
include: normal {internal trigger}, voltage-controiled
oscillator, external trigger, gate, burst and FM. Qutput
capabilities include normal/invert, selectable source
impedance, variable offset up to + 10 V and variable
amplitude up to = 20 Vpp. Microprocessor design makes
mode selection and parameter setting easy whether done
manually or programmed over the HP-1B™, Current
operating status, including notification of operating or
programming error, is available to the bus and indicated
on the front panel,
* Hewlett-Packard Interface Bus, Hewlett-Packard’s
implementation of IEEE Standard 488 , Standard Digital
Interface for Programmable Instrumentation”,
1-13 OPTIONS
im 14 8165A Option 002 provides additional AM
feature and up/down logarithmic sweep modes. The
sweep modes have selectable start and stop freguencies
and the sweep time may be selected from six discrete
values, Sweep start may he externally triggered or, for
continuous operation, internally triggered.
NOTE: Option 001 (additional sweep mode only) is
obsolete, Refer to Backdating.
General Information
1-15 8165A Options 907, 908 and 909 provide handles
and/or rack mounting accessories. Refer to Figure 1-2.
1-16 8165A Option 910 provides an additional manual.
1-17 All options will be delivered with the instrument
if ordered at the same time as the instrument.
1-18 ACCESSORIES SUPPLIED
1-19 The 8165A is supplied complete with the follow-
ing items {see Figure 1—1}:
&iexcl;TEM
1A Fuse for 230V operation
2A Fuse for 118V operation
Power cable
User's Reference (
in pull-out under instrument)
Model 8165A
HP PART NUMBER
2110-0001
2110-0002
see Figure 2—2
08165-90011
1-20 RECOMMENDED TEST EQUIPMENT
1-21 Equipment required to maintain the model 8165A
is listed in Table 1—1, Other equipment can be substituted
if it meets or exceeds the critical specifications listed in
the table.
Table 1-1 Recommended Test Equipment
INSTRUMENT RECOMMENDED REQUIRED USE”
MODEL CHARACTERISTICS
Counter HP5345A 50 uHz to 50 MHz, 8-digit display PA
Digital voltmeter HP 3455A 0.1-20V, ac rms and de, 0.004 % accuracy РА
Spectrum analyzer HP181A + 8557A 1-50 MHz P, A
or HP141T +
8552A + 8556A
Spectrum analyzer HP3580A 100 Hz — 1 MHz A
Sampling scope HP180C + 1810A Dual channel, 2 mV/div, 10 ps — 50 u /div PA
Scope HP1740A 100 MHz bandwidth PA
Pulse generator HP8012B 1 Hz — 1 MHz, square, pulse, offset P, &Agrave;
Voltage source HP6213A 160 mV — 10V dc P, &Agrave;
System controller HP9825A + 98034A Desktop computer, HP-1B, Interface Р
Logic analyzer HP1600A 16-bit +
Logic probe HP545A TTL, MOS T
Cable assembly (3) HP11170B 50 &copy;), 61cm (24 in}, BNC P, A
Cable assembly {2} HP11170A 50 &pound;2, 30cm {12 in), BNC PA
Feedthrough HP10100C 50 &pound;2, BNC P, A
termination
Power attenuator Microline 766-20 20dB, 20W PA
BNC Tee HP1250—0781 1 male, 2 female P A
Adapter HP1251—2277 Banana / BNC female P, &Agrave;
1:1 Probe HP10007/8B BNC / retractable hook A
10:1 Probe HP 100068 BNC / retractable hook A
Capacitor НР 0160—3724 0.47 uF A
Extender board НР 5060—2043 24 рт T
Extender board HP 5060-1742 18 pin T
* P = Performance Test; A = Adjustments; T = Troubleshooting
Model 8165A
General information
Table 1-2 Specifications
Frequency Characteristics
Waveforms: Sine, square, puise, triangle, ramp.
Range: 0.001 Hz to 50.00 MHz (0.001 Hz to 19.99 MHz
for 20 and 80% duty cycle/symmetry).
Accuracy, Stability and Resolution:
Norm Trig, Gate, Burst
{&lt;!kHz f=1kHz
Accuracy 0.001% * 0010 5%
Stability over 1 hour |+1x106* | = 1x106% + 5y104es
- Stability over 24 hours|+ 1x106* | +1xt06+ + 1x103&raquo;*
Resolution (digits) 4 4 3
* Accuracy and stability can be improved by phase locking to an
external frequency reference,
** After 15 minutes.
Jitter: &lt; 0.27 at 20/80% duty cycle/symmetry
&lt; 0.1% (&gt; 1 kHz)
&lt; 0.02% (0.1 Hz — 999 Hz), further improvement
at lower frequencies.
Output Characteristics
(50 Q Source terminated by 50 &copy; load unless stated
otherwise)
Range: amplitude and offset independently variable within
+ 10 V.
Source Impedance: selectable 50 Q + 1% or 1 kQ + 10%,
in parallel with 50 pF. |
Amplitude: 10.0 mV... to 10.0 Y
PP Pp’
2.00 V.., to 20.0 V.... (1 k &copy; into 50 &pound;2).
PP PP
Accuracy: Sine | Square Triangle i Ramp Pulse
ВЕ (50%) (20%, 80%) | (20%, 80%)
&lt; 1 kHz + 2% | 4% 2% + 2% + 2% + 2%
| KHz — 5 MHz +2% | 12% + 2% t 5% + 2%
5 MHz - 20 MHz 145% | &reg; 5% + 10% 1 10% + 5%
26 MHz -- 50 MHz | +3% | + 5% + 5% 10 —20% — —
Resolution: 3 digits.
Offset: Oto+5.00Y,
0 to + 10.0 V (1kD into 50 &copy;).
Accuracy: * (1% programmed value + 1% signal Vpp
+20 mv).
Baseline Drift (Trig, Gate and Burst modes): &lt; 5% of
peak amplitude,
Sine Characteristics (Norm mode):
Harmonic Components: Up to 5 MHz, THD &lt; 1% of
fundamental. Above 5 MHz, all harmonics at least 30 dB
below fundamental.
Spurious: all non-harmonically related outputs at least
40 dB below fundamental.
Triangle/Ramp Characteristics
Symmetry: 20, 50, 80% selectable.
Linearity: (10% to 90%): + 1% (up to 5 MHz),
+ 5% (above 5 MHz).
Resolution: 2 digits (10 to 99 mV), 3 digits (= 100 mV).
cont’d.
Square/Pulse Characteristics:
Duty cycle: 20, 50, 80% selectable.
Transition times (10% to90%): &lt; 5 ns,
&lt; 7 ns (1 k into 50 2).
Preshoot/Overshoot/Ringing: + 5%,
&pound;10% (1 kQ into 50 9).
Operating Modes
Norm: continuous waveform is generated, phase locked to
an internal 10 MHz crystal reference.
YCO: external voltage (100 kHz max) from 10 mV to 10 V
linearly sweeps 3 decades up to top of decade in which
the 8165A frequency is set. Four bands limited to less
than 3 decades:
100 mV — 10 V for 100 kHz — 10 MHz
and 10 Hz — ! kHz,
10mV — 2 V for 100 kHz — 20 MHz,
50 тУ — 5 V for 500 kHz — 50 MHz.
Trig: pos. ext input pulse 2 10 ns wide generates one output
cycle. Upper level &gt; +250 mV, lower level &lt; ОУ.
Gate: oscillator enabled when ext input 2 +250 mV, dis-
abled when &lt; O V, First and last output cycles are always
complete,
Burst: a preprogrammed number of output cycles is generat.
ed. Min. time between bursts 50 ns. Burst length 0 to
9999 cycles. Min. trigger puise width 10 ns, upper level
&gt; + 250 mY, lower level &lt; 0 V.
FM: Oto+1V modulates 0 to + 1% deviation.
Modulating Frequency: 100 Hz to 20 kHz (Norm mode),
de to 20 kHz (Gate mode with carrier frequency
= | kHz).
Input Impedance: 10 k&reg; typical.
AM (Option 002 only): 0 to 2.5 Y... modulates 0 to 100%
РР
modulation depth,
Modulating Frequency: dc to 10 MHz (—3 dB).
Input Impedance: 10 КО typical.
Pulse Modulation: transition times &lt; 50 ns.
Envelope Distortion (dc to 250 kHz mod. freq.):
Carrier Modulation Distortion
&lt; I MHz 0 to 90% &lt; 1%
&gt; 1 MHz О 10 30% &lt; 3%
Carrier Frequency Deviation: &lt; 0.01%, 0 to 30% modula-
tion.
Sweep (Option 002 only): provides logarithmic up/down
sweep up to 3 decades between limits set on the 8165A.
As in VCO mode, 4 bands limited to less than 3 decades
Min frequency 1 mHz.
Sweep-rate: 0.01, 0.1, I, 10, 100, 1000 seconds per
decade selectable.
Trigger: one up-down sweep per trigger pulse (upper
level &gt; +250 mV, lower level &lt; 0 Y, width &gt; 10 ns).
Accuracy: sweep start frequency + (15% + 0.5% of max.
stop frequency), sweep stop frequency + 15%.
Resolution: 2 digits.
1-3
General Information
Model B165A
Table 1-2 Specifications (continued)
Auxiliary outputs and inputs
Ext. Input: external signals used in VCO, Trig, Gate, Burst
and {Option 001) Sweep ext. tng.
Signal range in VCO: 10 mV to 10 V for 3-decade sweep.
Signal thresholds in Trig, Gate, Burst, Sweep ext trig:
+250 mV (upper), 0 V (lower).
Max. input: + 20V,
Input impedance: 10 k&sect;2 typical.
Sync. output: one trigger pulse per main output cycle.
Amplitude: 3 Vpp into open circuit (1.5 Vop into 50 &pound;2).
Ext. 10 MHz ref.: external 10 MHz, TTL, system clock.
Rear panel switch selects ext or int clock as intrument
reference.
Mod Inp: FM and (Option 002 only) AM input.
Signal range in FM:0 to &pound; 1 V for 0 to &pound; 1% deviation.
Signal range in AM: Oto 2.5 V,p for 0 to 100% moduia-
\ РР
tion depth.
Max. input: + 20 V.
Input impedance: 10 КО typical.
Sweep out (Option 002 only): triangular sweep voltage, O
to 2.99 V amplitude for 3 decades (1 V/decade).
HP-IB capability and microprocessor
Code Interface Function Code Interface Function
SH 1 Source Handshake SR1 Service Request
AH 1 Acceptor Handshake RL! Remote/Local
T6 Talker (basic talker, PPO No Parallel Poli
serial poil, unaddress DCO No Device Ciear
to talk if addressed DT I Device Trigger
to listen) CO No Controller
1.4 Listener (Basic listener), E 1 Three-state Bus
unaddress to listen if Drivers
addressed to talk)
Accuracy: See Frequency and Qutput Characteristics
Settling times:
Frequency: &lt;&lt; 20 ms to &pound; 5% of programmed value. In
Norm mode, and in Trig, Gate, Burst at frequencies
&lt;1 kHz: &lt;70ms to * 2% of programmed value,
&lt; 300 ms to final value.
Other Functions: 20 ms. The following range changes can
take up to 200 ms:
Change of duty cycle.
Selection to or from Sweep/YCO.
Changing up to/down from the following decades:
Frequency 1 kHz, 10 kHz, 100 kHz, 1 MHz, 20 MHZ,
Amplitude 100 mV, 1 Y
Offset 1 V.
Number of bytes sent/received
Listener: up to 65 bytes (89 in Option 002) for one
complete set of operating parameters.
Talker-Learn Mode: 8 lines. Each line up to 16 bytes
plus CR LF. Total: 144 bytes max.
Talker-Error Message: 1 byte.
1—4
Byte Rate:
Function Time {typical values): set up as talker/listener
1.1 ms, receiving time per character 0.1 ms, processing
per parameter 3.0 ms, entry time per digit 2.0 ms, check
time per parameter entry 5-10 ms, waveform/duty cycle/
modulation 1.0 ms, input mode 6.5 ms, output modes
9.0 ms, recall 25 ms, store 380 ms.
Memory: 10 addressable locations plus one for existing
operating state.
Capacity: each location can store a complete set of
operating parameters and modes.
Access time: 20 ms each location,
Storage time: internal battery provides memory retention
for approx. 4 weeks at room temperature. Battery re-
charges when 8165A is switched on.
General
Power Requirements: 100 V, 120 V, 220 V or 240 V;
+5 У to —10%, 48 to 66 Hz, 200 VA max.
Environmental: operates to specifications from 0 to 50%,
and with relative humidity to 95% at 40&deg;C.
Storage: —20 10 +70&deg;С.
Weight: net 12 kg (26.5 Ibs.). Shipping 16 kg (35.3 165.).
Dimensions: 426 mm wide, 145 mm high, 450 mm deep
(16.8 x 5.7 x 17.7 inches).
Accessories Available: The following cables for intercon-
necting HP-IB instruments to the bus are available:
10631A 1m (3.28 ft) 10631C 4m(13.1f)
10631B 2m (6.56 ft) 10631D 0.5m (1.64 ft)
The following adapters for connecting to the DUT are
available:
15104A Adder/Splitter
15450A Adapter for terminating at DUT
15451A TTL-CMOS Translator. CMOS level
originates from DUT thus protecting it.
OPTIONS
Option 002: Sweep and Amplitude Modulation
Option 907: Front Handle Kit,
р.п. 5061—0089
Option 908: Rack Mounting Kit,
p.o. 5061-0077
Option 909: Combined Front Handle and Rack
Mounting Kit, p.n. 5061-0083
Option 910: extra Operating and Service Manual
Specifications describe the instrument's warranted performance.
Supplement characteristics — identified by the word “typical”
- are intended to provide information useful in applying the
instrument by giving typical, but non-warranted, performance
parameters.
Data subject to change
Mode! 8165 A
Installation
SECTION II
INSTALLATION
2-1 INTRODUCTION
2-2 This section provides installation instructions for
the instrument and its accessories. It also includes in-
formation about initial inspection and damage claims,
preparation for use, and packaging, storage and ship-
ment,
2-3 INITIAL INSPECTION
2-4 inspect the shipping container for damage. If the
container or cushioning material is damaged, It should be
kept until the contents of the shipment have been check-
ad for completeness and the instrument has been checked
mechanically and electrically. The contents of the ship-
ment should be as shown in Figure 1-1 plus any accessor-
les that were ordered with the instrument, Procedures
for checking the electrical operation are given in Section
3. If the contents are incomplete, if there is mechanical
damage or defect, or if the instrument does not pass the
operator's checks, notify the nearest Hewlett-Packard
office. Keep the shipping materials for carrier's inspec-
tion. The HP office will arrange for repair or replacement
— without waiting for settlement,
2-5 PREPARATION FOR USE
2-6 Power Requirements
2-7 The instrument requires a power source of 100V,
120V, 220V or 240V (+5%, —10%) at a frequency of 48
to 66 Hz single phase. The maximum power consump-
tion is 200 VA, |
2-8 Line Voltage Selection
ES le TL
{ CAUTION |
BEFORE SWITCHING ON THIS INSTRUMENT make
sure that the instrument is set to the local line voltage.
2-9 Figure 2—1 provides information for line voltage
and fuse selection:
&gt;&lt;
e 740 240V
X &quot;ZOOM X 220V
RE ТОМ m 120Y
fo 7 100V — - 100V
220V + TA — 240V
Figure 2—1. Switch Settings for the various Nominal
Powerline Voltages
2-10 Power Cable
| WARNING |
To avoid the possibility of injury or death, the following
precautions must be followed before the instrument is
switched on:
a. If this instrument Is to be energized via an auto-
transformer for voltage reduction, make sure that the
common terminal is connected to the neutral pole
of the power source fnon-symmetrical supplies).
Ensure that the ground connection is preserved},
b. The power cable plug shall only be inserted into a
socket outlet provided with a protective ground con-
tact, The protective action must not be negated by
the use of an extension cord without a protective
conductor.
C. Before switching on the instrument, the protec-
tive ground terminal of the instrument must be
connected to a protective conductor of the power
cable. This is verified by checking that the resistance
between the instrument chassis and the front panel
and the ground pin of the power cable plug is zero
ohms,
2-11 In accordance with international safety standards,
this instrument is equipped with a three-wire power cable.
When connected fo an appropriate ac power receptacle,
installation
this cable grounds the instrument cabinet, The type of
power cable shipped with each instrument depends on
the country of destination, Refer to Figure 2-7 for the
part number of the power cords available.
2-12 If the plug on the cable supplied does not fit your
power outlet, then cut the cable at the plug end and
Model 816bA
connect a suitable plug. The plug should meet local
safety requirements and include the following features:
Minimum current rating of ZA
Ground connection
Cable clamp.
The colour coding used in the cable will depend on the
cable supplied (see Figure 2—2).
NEMA TYPE
HP Part No. 8120-1348
LINE = BLACK
NEUTRAL = WHITE
GROUND = YELLOW/GREEN
SCHUKO TYPE
HP Part No. B120—1689
LINE = BROWN
NEUTRAL = BLUE
GROUND = YELLOW/GREEN
BRITISH STANDARD TYPE
HP Part No. 8120— 1351
LINE = BROWN
NEUTRAL = BLUE
GROUND = YELLOW/GREEN
USED IN AUSTRALIA
HP Part No, 8120-1369
LINE = BROWN
NEUTRAL = BLUE
GROUND = YELLOW/GREEN
Figure 2—2. Power Cables Available: Plug identification
2-13 HP-IB Connector
2-14 The rear panel HP-IB connector (Figure 2--3)
is compatible with the connectors on Cable Assemblies
10631 A, B, C and D. 1f a cable is to be locally-manufactur-
ed, use connector male, HP part number 1251-0293.
22
SHIELD
GND
ATN
GUARDGROUNDS SRO
TWISTED WITH EC
PIN CONNECTIONS =
(GND AT SYSTEM NDAC
CONTROLLER) NRED
DAV
REN EO
DIOS 0104
DI07 n103
0106 DIO?
DIOS X 0101
ТУРЕ 57
MICRORIBBON
CONNECTOR.
Figure 2—3, HP-IB Connector
2-15 HP-IB Logic Levels
2-16 The 8165A HP-IB fines use standard TTL logic.
Logic levels are as follows:
True = low = digital ground or OV dec to +0.4V de,
False = high = open or +2.5V dc to +5V de.
All HP-IB lines have LOW assertion (17) states, High
states are heid at +3V dc by pullups within the instru-
ment. When a line functions as an input, approximately
3.2mA of current is required to pull it low through a
closure fo digital ground, When a line functions as an
output, it will sink up to 48mA in the low state and
approximately 0.6mA in the high state.
| CAUTION }
Isolation, The HP-1B line screens are not isolated from
outer chassis {frame} ground.
2—17 Operating Environment
2—18 The instrument will operate within specifications
when the ambient temperature is between 0&deg;C and 50&deg;C.
Model 8165A
Operation
SECTION Ii
OPERATION AND PROGRAMMING
3—1 INTRODUCTION
3—2 This section explains the functions of controls,
connectors and indicators, and provides operating and
programming information. The sweep and AM option
{002} is included.
3—3 SPECIAL OPERATING
CONSIDERATIONS
3—4 The following steps must be taken before apply-
ing power to the Model 816bA,
a) Read the safety summary at the front of this
manual,
bh} Be sure the power selector switches are set
properly for the power source being used to avoid
instrument damage.
с} Ensure load is not overdriven {up to 20 V р-р ог
400 mA can be delivered).
CAUTION &cent;
Do not change the LINE SELECTOR Switch setting
with the instrument on or with power connected to the
rear panel.
3-5 OPERATORS CHECKS
3-6 Use the performance checks in Section IV to
verify proper operation of the 8165A,
3-7 CONTROLS, CONNECTORS AND
INDICATORS
3-8 Refer to Figure 3—1.
3-9 OPERATING INSTRUCTIONS
3—10 Operating modes and parameters can be set on
the front panel {local operation} or programmed using
the HP-IB, The operating modes, selected by pushbuttons
with built-in indicators, are explained in the following
paragraphs. Signal parameter selection, involving a 3-step
operation (select PARAMETER, select DATA, ENTER
units) and using a numerica! display with a units Indica-
: tor, is dealt with in &sect; 3—4b,
3—11 Commence by setting the LINE switch on and
press the DISABLE/ENABLE button (the lamp should
go out, indicating that the output 15 enabled). The 8165A
will have automatically assumed the operating state
prevailing at switch-off (see also 8 3—59), Shouid the
ERROR lamp flash, an incompatible setting has been
attempted and reference should be made to 5 3-60,
FREQUENCY RANGE t mHz — BO MHz
SYNC OUTPUT LOB VY
INTO 50 e
— ZERO VOLTS
PEE I ее
OUTPUT. TRIANGLE (E2) —- к — = OFFSET LEVEL
| T= 1/B185A frequency,
|
Far Vj,&raquo; {amplitude} and offset,
refer to para 3—42,
Vout
OLTPUT-.PUESE {F3} sts wns is [auf a ето и OFFSET LEVEL
Figure 3-2 Normai Mode (50 % duty cycle/symmetry)
SYNC QUTPUT |
PEE gems TT 1/B165A frequency
FREQUENCY RANGE 1 mbiz — 19.99 MHz
OUTPUT RAMP {F2} 720 %
QUTPUT PULSE {F321 80%
|
|
|
|
|
SYNC OUTPUT
|
OUTPUT RAMP (&pound;2) 80 % |
| |
| |
| |
QUTPUT PULSE (F3) 20%
Figure 3-3 Norma! Mode (20 and 80% duty cycie/symmetry)
3-1
Operation
3—12 Function and Duty cycle
3-13 As shown in Figures 3—2 and 3—3, triangular or
square wave output with 20, 50 or 80% symmetry/duty
cycie, or sine wave may be selected by pressing the
appropriate FUNCTION and DUTY CYCLE buttons.
The Figures, In which NORM input mode (83—15) and
NORM output (&sect; 3—44) are assumed, also shows the
relationship between OUTPUT and SYNC OUTPUT.
3—14 Input Modes (Note: frequency generation
above and below 1kHz are dis-
similar, see 53-37).
3—15 Normal Mode (NORM) (Figures 3—2, 3—3).
3—16 When normal mode is selected, the output is
continuous and its frequency is determined by the
FREQUENCY setting (83—46).
3-17 Voltage-controlled Oscillator Моде (МСО)
3-18 In this mode, a signal applied to the EXT INPUT
connector determines the output frequency. The applied
signal may change at rates up to 100 kHz. The working
A EXT INPUT (Via)
Max. FREQUENCY setting, max. fout
Model 8165A
EXT INPUT 8
(sweer la V /div
VOLTAGE) &Agrave; 00mV
SYNC
QUTPUT v/div
OUTPUT
100Hz 2KHz 100Hz
Figure 3-4, Example of operation in VCO mode
range of input voltage (10 mV — 10V) sweeps the out-
put frequency over &agrave; maximum range of 1 : 1000; the
actual range swept depends, as shown in Table 3-1, on
the 8165A's frequency setting.
3—19 As an example, suppose a sweep from 50 Hz up
to 500 Hz is required, This means that, when the 8165A
is set to a frequency anywhere in the range 100 Hz —
899 Hz {which brackets the desired sweep maximum),
the desired sweep can be obtained by applying an ex-
ternal signal which varies between + 500 mV and + BV
levels, See Figure 3-5.
10V
By =
TW
Eh we
SY wd
Sy —
ES Mos
ZN ==
ta
BED we
Form —
бб ти! ==
EST —
Обл —
ABN m
ZT en
130mY =
om —
TEJA ee
Om —
CIT не
АЮНУМ rd
Or ==
20mv —
10
tout {Hz}
195
|
TOL
104 103
| |
100k im
Figure 3-5 VCO mode characteristics
32
Model 8165A
“Table 3—1. Bands in VCO Mode
FREQUENCY setting Sweepable band
of 8165A From To
Vin fout Vin fout
min min max max
1mHz — 9.99 mHz | TOmV tOuHz | 10V 10mHz
10 та: — 999 mHz ! 10mV | 100uHz | 10V 100 mHz
100 mHz -- 999 mHz 10mV &iexcl; TmHz 1GV 1Hz
1 Hz — 9.99 Hz fOmV | 10mHz | 10V 10Hz
10 Hz — 99,9 Hz TOmVv | TOOmHz| 10V 100Hz
100 Hz — 999 Hz 100mv! 10 Hz 10V 1kHz
ikHz — 9,99 kHz | TOmY | 10Hz 10\ — +10kHz
10kHz —- 99,9 kHz: | 10mV | 100Hz | 1OV | 100kHz
100 kHz 999 kHz | 10mV | 1kHz 10V | 1MHz
1 MHz — 9.99 MHz | 100mV/| 100kHz | 10V | 10MHz
10 MHz 19.99 MHz 10mV | 100kHz | 2V 20MHz
20 MHz 50 MHz — 50mV 500kHz BV 50M Hz
i
3-20 External Trigger Mode (TRIG)
3-21 When externally triggered, the positive-going
edge of the pulse applied to the EXT INPUT connector
initiates one complete output cycie (Figure 3--6), the
Ш : frequency (and also the maximum trigger frequency)
— being defined by the 8165A's frequency setting, Thus,
a pulse train of desired repetition rate and pulse width
can be set up. By using different duty cycle settings a
variety of waveform possibilities are realized (Figure
37}. Triggering may also be done manually or by
programming.
1 TRIGGER LEVEL = + 250mv A
EXT INPUT i Y, i ZERO Y
ног || TIN&gt; T
| |
| | Y
OUTPUT SINE — OFFSET
| } LEVEL
&Icirc;
|
|
OUTPUT TRIANGLE HKD | vue con me OFFSET LEVEE
Ebo
| | $T 87
SF
SYNC OUTPUT — +
Ls
|
|
| |
| |
|
|
|
|
OUTPUT SQUARE won ен a cr sn nd me I | mi CEFSET [EVEL
| ||
i |
Figure 3—6 External Trigger Mode (50 % duty
cycle/symmetry)
Т = 1/8165A frequency
Operation
EXT INPUT
QUTPUT RAMP 20% -
|
|
i
SYNC OUTPUT |
&Agrave;
|
|
OUTPUT PULSE 80%
QUTPUT RAMP 80%
| der
SYNC OUTPUT
QUTPUT PULSE 20%
Figure 3—7. External Trigger Mode (20 and 80% duty
eycie/symmetry)
3-22 Gate Mode (GATE)
3—23 I&Iacute;ngate mode, the leading edge of a positive pulse
applied to the EXT INPUT connector initiates the out-
put stream, and the trailing edge causes the following
EXT INPUT
OUTPUT TRIANGLE BC %
FY A a |
SYNC OUTPUT |
Figure 3—8. Example of Gate Mode
Operation
positive edge of the SYNC OUTPUT to terminate the
stream at the next crossover, A whole number of
complete output pulses are always generated,
3-24 Burst Mode (BURST)
3—25 &Agrave; preset number of output cycles can be generated
on each leading edge of a positive-going trigger pulse sig-
nal applied to EXT INPUT when burst mode is selected.
The burst length may be set up to 9999 cycles as des-
cribed in &sect;3—50. At least BO ns must separate consecutive
bursts, Can be triggered manually.
Model 8165A
3-26 Sweep Modes — OPTION 002 Only
3-27 Internal Trigger Sweep selection will cause the
output frequency to make one up/down sweep from
the SWEEP START to the SWEEP STOP limits set on
the 8165A (53-48). As shown in Table 3—2, the sweep
takes place within a band whose top decade brackets
the SWEEP STOP value. The internally-generated,
triangular, sweep voltage Vsweep |S available at the rear
panel SWEEP OUT BNC. Frequency change rate is
logarithmic.
Table 3-2, Bands in Sweep Mode
SWEEP START min SWEEP STOP max
EXT INPUT IN DN fout Vsweep fout Vsweep
| -- | TmHz | 20V 9.9 mHz 2.99 V
| | 1 mHz 10V 99 mHz 2.99 v
| imHz | 0.0V ‚99 Hz 2.99 V
OUTPUT TRIANGLE BO %
| — | 10 mHz | 0.0V 9.9 Hz 2.99 V
. BURST ево ня — 10 Hz 0.0 V 99 Hz 2.99 V
er | 10 Hz 1,0 V ‚99 kHz 2.99 V
SYNC OUTPUT | | 10 Hz 0.0 V 9.9 kHz 2.99 V
| ! ‚10 kHz 0.0 V 99 kHz 2.99 V
1 kHz 0.0 V 99 MHz 2.99 V
Figure 3—9. Example of Burst Mode 100 kHz 10V 9.9 MHz 2.99 \
500 kHz | 0.69 V 50 MHz 2.69 V
SWEEP OUT
VOLTAGE (Veweep! Max. SWEEP STOP setting
2,99
Min om VE E e wd eH BE cn wd Fn ren em &Iacute; — ot Bi aa aan m Far ae sn
SWEEP STOP
Setting
Ay
TV me mr mon sn a =
5
|
|
p START Setting ‘our Hz)
ov | y it
105 104 108 107
' | | |
10u 1004: 10m IM 10M 50M
Figure 3—10. Sweep Mode Characteristics
3-4
Model 8165A
3-28 Asan example, suppose a sweep is required from
10 Mz (SWEEP START) to 700 Hz (SWEEP STOP), then
V sweep varies between the levels 1.00 Y {i.e., log 10)
and 2.84 V (Le., iog 700).
3—29 Sweep times of 0.07, 0.1, 1, 10, 100, 1000 seconds
per decade can be selected on the SWEEP TIME push-
buttons.
3-30 External Trigger Sweep requires the application
of a positive pulse at the EXT INPUT connector to
initiate a single up/down sweep {Figure 3—11}. In other
respects, operation Is the same as Internal rigger sweep.
EXT INPUT
{TRIGGER
SWEEP
OUTPUT
{REAR
PANEL)
SYNC
OUTPUT
QUTPUT
&Iuml;
SWEEP SWEEP
START STOP
NEW SWEEP WOULD
COMMENCE HERE
IN SWEEP-INT TRIGGER MODE
Figure 3—11. Example of Sweep Mode
3-31 Frequency Modulation (FM)
3-32 The 8165A's output can be frequency modulated
by applying a voltage to the rear panel. MOD INP
connector. The maximum deviation is + 1 % of carrier
freguency for which an external! voltage of + 1 V is needed.
In normal mode, the modulating voliage can vary in the
range 100 Hz to 20 kHz. In trigger, gate or burst modes,
the modulating frequency may be extended down to de,
but the 8165A's (carrier) frequency must be set to at
least 1.000 kHz,
3—33 Amplitude Modulation (AM)
3—34 A signal can be applied to the rear panel MOD
INP connector to provide a precisely amplitude — modu-
lated signal at the 8165A output. Amplitude range for
the modulating signal is 0—2.5 Vpp to provide a moduia-
tion range of 0—100 %. Modulating frequency is dc to
100 MHz {—3 dB points},
3—35 Frequency Reference
3-36 Phase lock techniques, using an internal, preci-
sion 10 MHz crystal reference, achieve very stable out-
put frequencies. A BNC and switch on the rear panel
permit the use of an external, 10 MHz, TTL, system
Operation
master clock instead of the internal reference.
3-37 Frequency Generation
3-38 Because of the 8165A’s wide frequency range,
two methods of frequency generation are used. These
lead to different distortion and stability considerations
— but first, a brief description of the two methods.
3—39 The heart of the 8165A is a voitage-controlled,
T kHz—b0 MHz, oscillator which usually operates in
phase lock using, as already mentioned, a crystal
reference. For frequencies below 1 kHz, the output of
the voltage-controlied oscillator is arranged to be an
exact muitiple of the required frequency, and a pro-
grammed divider reduces it to that needed. A triangular
waveform is approximated by means of an up/down
counter {programmed for 20, B0, or 80% duty cycle)
and a D/A converter. {Sinewave is derived from the 50%
duty cycle triangle using the same sine shaper as is used
for frequencies above 1 kHz; square wave is derived by
detecting the highest and lowest count of the up/down
counter.) The D/A converter output consists of 1000
amplitude steps per output cycle; this means that, at
1 mHz for example, the amplitude changes from one
discrete level to the next every second.
10 ms/div, 10 mV/div
SIi65DA: SOHZ, triangie, 1 V.
Figure 3-12. Example of Triangle Output below 1 kHz
3-40 Differences in operation can now be summarized
as foliows:
frequencies below 1 kHz
amplitude steps through 1000 discrete leveis per
cycle,
phase lock in all modes,
frequencies above 1 kHz
ampiitude continuous,
phase lock in normal mode only,
3-47 Output Parameters
3-42 The 8165A is designed so that source/load
configurations of 5092 into 502, 500 into high impe-
dance, and 1 k&pound;2&agrave; into 5082 can be easily arranged.
3—5
Operation
Amplitude and offset are independently variable and de-
pend upon the source/load configuration {Table 3-3}.
As shown in Figure 3-13, reflections are minimized
when the system Is terminated by a low-capacitance
5002-load at the device which the 8165 A drives. However,
termination at the 816bA may be preferred If the device
impedance is reactive.
20 V AMPLITUDE CAPABILITY
OUTPUT MODE 508), LOAD IMPEDANCE 1KE&amp;)
EXT INPUT
(TRIGGER)
1V/DIV
OUTPUT
AT DEVICE
2v/DIV
20 V AMPLITUDE CAPABILITY
OUTPUT MODE 1K2 LOAD IMPEDANCE 5052
EXT INPUT
{TRIGGER)
1V/DIV
OUTPUT
AT DEVICE
2V/D1V
0.1,ps/D1V
10 V AMPLITUDE CAPABILITY
CUTPUT MODE 5082 LOAD IMPEDANCE 5082
EXT INPUT
(TRIGGER)
1V/DIV
OUTPUT
AT DEVICE
1V/DIV
0.1Ms/DIV
81654 SETTINGS: SINE, BURST (3 CYCLES), 20 MHz,
AMPLITUDE 2.5V (DIGITAL DIS-
PLAY), ZERO OFFSET
Figure 3—13. Source/load configurations
{Low-capacitance load}
3—6
Model 8165A
Table 3—3 Output Voitage Summary
OUTPUT | EXT | AMPLITUDE! Vpp| OFFSET! V4. | VOLTAGE AT
MODE LOAD [MIN MAX MIN MAX | EXT LOAD
| 1 Pp/Vde
500 6052 | 10mv | 10V O+10mYv/+5V As digitat display
sor HIGH Z | 20mV | 20V O&pound;20mV | &pound;10V | Approx 7x digital
display
Nu 605} 2V 20\ 0420mV +10V | As digital display
Notes
1. Amplitude + offset must lle within a $ 10 Y window.
Voltages set as in 83-62,
2. Applies only to displayed amplitudes &lt;&lt; 10Vpp
3. Applies only to displayed amplitudes 22 2Vpp
Attempts to select incompatible impedance/veltage
configurations will not be accepted and will cause the
ERROR lamp to light.
3-43 In addition to b0 &pound;2 systems, the instrument is
also suitable for driving any desired impedance. This is
due to the current mode output configuration (Figure
3—14) where the maximum current available with
1 k&sect;2 source impedance is + 200mA peak signal and
+ 200mA offset.
+
+
Y lOFESET
&gt; y &lt;&lt;
DEVICE
ISIGNAL rem
- Tk 507
Figure 3-14. Configuration of Output Stage
3-44 The output can be turned on and off with the
DISABLE/ENABLE button and may be inverted using
the INV/NORM button. The OUTPUT MODE buttons
are respectively lit when disable, invert and 1 k&amp;2 are
effective. Disable is automatic at switch-on. For threshold
testing, the offset can be obtained without signal by
selecting trigger, gate or burst modes in the absence of a
trigger signal.
Model S165A
3-45 Selection and Storage of Parameters
3—46 Frequency
3-47 The 816bA’s frequency is set as follows:
press FRO key, check that FREQUENCY
lamp blinks,
press the required DATA keys sequentially
(e.g., 4 then 3, then 2, then - , then 6) and
observe that the display above the FRE-
QUENCY lamp displays the desired number,
press the appropriate ENTRY key for the
unit desired {e.q., &quot;Hz or Y”) verify that the
correct unit appears to the right of the
FREQUENCY display and that the lamp
glows steadily. The 8165A is now operating
at the new frequency (432.6 Hz, in this
example),
Use may be made of the VERNIER controls as follows:
press FRQ key,
press the appropriate VERNIER key for fast
or slow, up or down shift. The output fre-
quency changes with the display during this
process so that it is only necessary to press
an ENTRY key if the unit is to be changed.
When setting frequency for the VCO mode, refer to
Table 3-1.
3-48 Sweep Start/Stop (Option 002 only)
3-49 When sweep mode is required, set the start and
stop frequencies using procedures similar to 83-45 in
conjunction with the SWEEP START and SWEEP STOP
keys. Refer to Table 3-2 for the permissible bands.
3-50 Burst
3-51 The number of cycles per burst is set as follows:
press PARAMETER key BURST, check that
BURST lamp blinks,
press the desired DATA keys, check that the
required number shows in the display above
the BURST lamp,
press the ENTRY key “kHz or RURST”,
3-52 Amplitude and Offset
3-53 Ampittude and offset are each set in a manner
similar to frequency, using the AMPL and OFFSET keys.
Operation
If a negative offset is required, press the CHS {change
sign) key any time during DATA entry but before
pressing the mV or V key.
3-54 Storage and Recall
3-55 Ten addressable store locations are available,
each of which is capable of storing a complete set of
8165A operating modes and parameters. To store a
current set of modes and parameters:
press STO (store) key,
press a DATA key {0 to 9, as desired).
To put the 816bA into a previously-stored set of
operating modes and parameters:
press RCL. {recall} key
press the required DATA key (0 to 9).
3-56 Power-fail Memory
3—57 When power is removed from the 8165A, the
current operating parameters are automatically stored in
the power-fail memory so that, when the supply is re-
stored, the 8165A can return to its previous operating
state. However, to protect external circuits and prevent
possible remote control ambiguities:
the output is disabled,
local control is implemented.
Consequently, deliberate {manual or programmed) inter-
vention is required to obtain an output or to acquire
remote control,
3-58 Storage and Access Times
3—b8 Addressable memories and the power-fail memory -
remain effective for approx 4 weeks at room temperature
after power has been removed. Access time is 20ms, see
Table 1—2 for settling times.
Note: If the internal batteries are allowed to run down,
data must be re-entered and the instrument should be
left switched on so that the batteries can recharge.
3-60 Error Indication
3-61 If it is attempted to select incompatible operating
modes or parameters, the ERROR lamp will flash and the
8165A will remain in its previous operating state. To
clear an error, correct DATA and ENTRY. Common
causes of errors are:
frequency out of range,
duty cycle/frequency,
output impedance/voltage (see 83—41),
Programming
3—62 PROGRAMMING INSTRUCTIONS
3-63 The 8165A operates on the HP-IB as follows:
listens to messages from the HP-IB system
controller by means of which ali”
8165 A operating parameters and modes
can be programmed; access time (the time
between program command and the impie-
mentation at the 8165A output, refer also
to specifications, Table 1-2} 6 20 ms,
“vernier operation is simulated by pro-
gramming a loop which increments/decre-
ments a value.
talks: provides error messages and reports
operating state.
3—64 The bus lines are as follows (all use negative logic}:
8-bit data bus (lines DIO 1 to 8),
handshake lines — DAV (data valid}, NRFD
(not ready for data), NDAC (data not
accepted),
control lines — {FC (interface clear), ATN
(attention), SRO (service request), REN (re-
mote enable}, EO! {end or identify).
The B165A uses all lines except EOL Terminations,
logic levels and pinouts are described in Section H. In
this manual, bus information will generally be restric-
ted to 8165A specifics, for this reason, the handshake
lines will not be discussed and the control tines will only
be mentioned in connection with specific 8165A acti-
vity.
Permissible codes are presented in Table 3-8. For more
bus information, refer to the condensed description in
HP publication 58401-80030 and to EEE Standard 488.
3-85 To use the 8165A on the bus, remote control
must be implemented. This is done by setting the REN
line true, A return to local control can be made manually
(LOCAL RESET button), by sending the command GTL
(go to focal), or by setting REN fai&iacute;se, Refer to 83-73.
3—66 Addressing
3-67 Talk and listen addresses are transmitted by the
system controller over the data bus with the ATN line
true. When an instrument recognizes its address, It will
adopt the appropriate bus mode (i.e., it will listen to the
bus if its listen address has been transmitted, talk if the
talk address has been transmitted). The 8165A's addresses
are selected by a switch on the rear panel from the
possibilities presented in Table 3—4. When allocating
addresses, make sure no two instruments have the same
address.
3—8
Model B165A
When programming an address, set ATN true and arrange
that the ASCH character derived from Table 3—4 appears
on the bus, To deaddress, use UNL, UNT commands {or
address another device as talker},
Table 3—4 Available Addresses {ATN true)
Data bus Address in
(DIO lines) ASCII
Fixed | Selectable
878 B 4321 | Talk| Listen
OTL 600000 | @ | Space
OTL 006601 | А |
GOT 1. G0O0 10/1 B ”
OTL 00011 |C iF
oTLOOITOO ID |$
OTL OOTOTIE %
OT LOTTO F &amp;
cTLIOOT1TT |G ‘
01 L61000 H (
0 TL: 010901 || }
oTLIO1T0O010 |J *
oT LIO1TO1T1T K +
O TLIOTIOO|L
OTL 01101 |) M —
oT LIOT1T10 |N |.
oTLio1111/0 |/
O TL T000D IP: qua 81 65 A set to
OTLTOOCO!1 О 1 this. address a at
OTL 10010 |R 2 factory.
OTL 10011158 3
от Тото т 4
OTL1101TTO|Y 6 volta ‘address!
60T LL 190111} W 7
OTL 110600 X 8
OT LL 11001 Y 9
OT L 11010 X ;
OTE T1O01TT | ;
OTE 11100 \ &lt;
OT L{t1 1101 | =
0TL 11110 A &gt;
GTE 1 AAA UNA Forbidden set.
ting! UNT; UNL
commtianas:
&amp;
o
i ali Selector on 8165A
A i | A i rear pane! {factory
setting).
&copy;
Sy
y
Ey
EV
| = 1 for listen address, O for talk address
T= 1 for talk address, O for listen address
Model 8165A
3-68 Mode and Parameter Setting
3—69 When the 8165A has been listen-addressed, it
will be prepared to accept messages which will change a
parameter or [ts operating mode. Each mode and para-
meter-setting message consists of a number of ASCH
data bytes transmitted serialiy over the data lines with
Tabie 3-5 Mode and Parameter-setting Messages (ATN false)
Programming
ATN false. The coding for the bytes is given on the
front panel and also shown in Table 3--5 which
summarizes all mode and parameter-setting messages,
and provides an example. Reference may be made to
Table 3-8 to convert each ASCII byte to a bit pattern
on the data bus.
Message Serial ASCH Comments
bytes
Function
select sine F 1
select triangle F2
select square F3
Duty cycle:
select 20% D1 бее 33—76
select 50% D2
select 80% D3
Input mode:
select normal 11
select VCO 12
select trigger 13 Trigger message (Table 3—6) can be used.
select gate 14
select burst 15 Trigger message (Table 3—6) can be used.
select ext trig sweep 16 Option 002 only.
select int trig sweep 17 Option 002 only.
Modulation: |
select FM FMI
reject FM ЕМФ
ест А Na } AM Option 002 only
Parameters:
set frequency to f mHz FRQO/MZ f a number 1—9999
set frequency to f Hz FRQ/HZ fa number 0.001--9999
set frequency to f kHz FROfKHZ f a number 0.001—9999
set frequency to &agrave; MHz FRQ/MHZ f a number 0.001--50 (50% duty cycle), 0.001--19.99 (20,80%),
set amplitude to v mV AMPyMV v a number 10/20—999
set amplitude to v V AMPyV v a number 0.01 = 10/20
set offset to y mV * OFSyvMV v a number + 10/20 — + 5/10 see 33-42.
set offset to v V * OFSyV V a number + 0.01 — + 5/10
“IF no sign is given, the
previous sign is assumed.
set burst to n cycles EURABT n an integer 0—9999
set sweep start to f mHz STAMZ &gt;
set sweep start to f Hz STA/HZ
set sweep start to f kHz STAfKHZ
set sweep start to T MHz STAMHZ Option 002 only, for f refer to
set sweep stop to f mHz STPAMZ 83-26,
set sweep stop to f Hz STPHZ
set sweep stop to f kHz STPFKHZ
set sweep stop to f MHz STP/MHZ _
Programming | Model 8165A
Table 3-5 (cont'd)
Message Serial ASCII Comments
bytes
Sweep time:
select 0.01s/decade St &gt;
select O. 1s/decade S2
select 1 s/decade 53 |
select 10s/decade 54 &agrave; Option 002 only
select 100 s/decade $5
select 1000s/decade $6 В
Output mode:
disable output OD
enable output DE
invert Input Gl
normal output ON
select 1 k&amp;) output imped. 01
select BO 2 output imped, 05
Memory:
store current operating modes
and parameters in 816bA store
location n STOn nan integer 0—9, see 5 3-54
adopt parameters in |
store location n RCLn J
Example: a serial byte transmission
F2 D1 14 FRO99S.9MZ AMP1,3V OFS—ZOMV DE 0! 05 STO2
sets a listen-addressed 8165A to the following parameters: triangle, 20% duty cycle, gate mode, 99.9mHz, 1.3V
amplitude, —20mV offset, output enabled, output inverted, 50 {2 output impedance, This entire set of para-
meters is then stored in the 81654's memory location 2.
Example using Model 9825A Desktop Computer:
Write command defines controller as talker.
Address of 9825A's HP-1B interface,
| I | 8165A's address (the five least significant ASCi! bits are
_ bs selectable on the rear panel.
== wrt LE e
Function 1 = sinewave,
Input mode 1 = normal {int trig)
FM off,
i
Ni FH&amp; FRUITS Sk —— Frequency 12.5 kHz,
Amplitude 5 V.
do AMESY FE 2 a A Offset 2,25 М.
La &quot; 7
av UE LUI LEO — Output mode: enable, invert, 50 Q source impedance.
Notes
Lower-case {small} letters may replace any or all of the ASCII capitals,
Separators (i.e. space or comma} should be inserted between messages as shown in the above example
In sweep mode, a separator must be inserted after a &quot;set sweep start’ or “set sweep stop’ message.
Omission of a separator may cause malfunction in error reporting {8 3-77).
The order in which parameters are programmed is not significant,
3-10
Programming
3—70 Control Messages and Commands (Table 3—6)
Iim71 Programmed {rigger
3-72 When the 8165A is in trigger or burst modes, a
trigger message (GET) will initiate a single cycle or a
burst. Example using HP 9825A Desktop Computer:
tra 716,
3-73 Local, Remote and Local Lockout
3—74 When in remote, the 8165A's LOCAL RESET
button can be inhibited by the loca] lockout command.
To cancel focal lockout, send GTL {go to local) or set
the REN line false {or, the 8165A may be switched off,
and on again at the LINE switch). The 9825A's GTL
command is programmed by: cl 7,
3-75 Learn Mode
3-70 When the 8165A is addressed as a talker subse-
quent to receiving the message 'SET':, the 8165A will
output its current operating parameters to the bus (same
coding as in Table 3-5), The message SE Tn' accesses
‘addressable memory n. In neither case are the store
contents changed in any way. The parameters are trans-
mitted in 8 strings, as follows:
String 1 — function, duty cycle, input mode,
FM status, AM status,
String 2 — sweep time, output status, output
norm/comp, output 50 &pound;2/1 k&pound;2,
String 3 — frequency.
String 4 — amplitude,
String 5 — offset
String 6 — burst.
String 7 — sweep start Standard 8165A
String 8 — sweep stop | transmits CR/LF
Each string has up to 16 characters and is terminated by
CR/LF, Note that, in puise operation, the learn mode
duty cycle message is changed, Use the following table to
check the interpretation:
Program Learn
(Listen) (Так)
Duty cycie
(Square/pulse) 20 % D1 D3
50 % D2 D2
80 % D3 Di
Symmetry
(Triangle/
tramp) 20 % D1 D1
50 % D2 D2
80 % D3 D3
Model 8165A
Example using the HP 9825A Desktop Computer:
DIM HE LU: DS) — Array dimensioned.
ve PA, MET Request for current
| parameters,
ZE Pa&ntilde;o Sls HELL] ———Talk address, 9825A
ay ps ry wd | reads first string.
E
Pon. . Ta he 5 &Agrave;
x 3 1 . | 3 я
ЛО A 430% Зборов
A at,
Step 2 is repeated for other strings (AS [x |) as required,
3-77 Error Reporting
3—78 In the event of a program attempting to put the
S165A into an error condition, the 8165A wiH remain
in its previous operating condition and make a service
request (sets SRO line true). Under these circumstances,
when addressed as a talker for purposes of a serial poll
(i.e. SPE command sent from system controller}, the
8165&Aacute; puis an error message on the data bus. This
message consists of a single byte in which bit 7 is set
true when the 8165A has set the SRQ line true, and
bits 1 to 4 comprise an error code {Table 3—7)}. See
step 6 of Figure 3-106 overleaf.
Tabie 3-7, Error Messages
Data bus DIO lines Message
87654321
010010060 Amplitude out of range
01001001 Offset out of range
0171710017070 Frequency out of range
01001011 Output impedance error
01001100 Duty cycle/frequency in-
compatible
01001101 Sweep start/stop incompatible
01001110 Sweep out of range
01001111 Syntax error
3-11
Programming Моде! 160A
Table 3—6. Control Messages and Commands
Message/Command В165А Status Bus data (ASCI!} BEZEL program Comments
exampie
Remote control Local Listen/talk rem 716 REN fine true
Listen/taik #8 address
Go to local Listen _— {50H1” let 716 ATN tine true
Local
Local lockout (LLO) Listen [Dci] ” llo 7 ATN line true
Give current Listen e SET: wrt 716, &quot;SET
operating parameters Talk As Table 3-3
Give parameter
set in location n Listen —— SETA wrt 716, &quot;SETA ” fn is an integer
Talk —# As Table 3-5 0-5
Trigger (GET) Listen [BS 1!” trg. 716
Serial poli {SPE) Any |-— CANT&quot; rds 716 with SRQ true
Talk pea Error message DIO 7 true if
{Table 3-7) S165A has set
SRG true,
Po 1*= Single ASCII character. Do not program the individual characters within the brackets.
3-79 Program Example
3—80 The flow chart in Figure 3-15 illustrates typical
8165A bus activity when used with a computing con-
troller. An imaginary situation has been chosen in which
sequential operation at ten harmonically-related fre-
guencies is required, each frequency being active for a
duration of one second. The frequencies {as, indeed, all
other operating modes and parameters) are stored in
the 8165A's memory, counter loops being employed to
generate location address and frequencies. A pro-
grammed loop reads the 8165A status and prints a
report in the event of an error.
3-81 A possible way of implementing the flow chart
using the Model 9825A Desktop Computer with HP-IB
3-12
interface 98034 A is shown in the program example of
Figure 3—16. in this example, the 98034 As address is
assumed to be 7, thus the address of an instrument on
the HP-1B is 7X X where XX is the decimal equivalent
of the five least significant bits of the bus address. As an
8165 A address selector setting of 10000 (Table 3-4) is
assumed, for which the decimal equivalent is 18, the
ETG5A's address for purposes of programming with the
9825A Is 716. Talk or listen addresses (more specifically,
bits 6 and 7 of the HP-IB address) are automatically
specified by the kind of statement governing the 9825A’s
activity, e.g., the statement rds 716 telis the 9825A to
read from the bus and tells the 8165A to talk (talk
address 16, ASCITP); the statement wrt 716 tells the
9825A to output to the bus and telis the 8165A to
listen (listen address 16, ASCII zero).
Mode! 81654
Start , B165A4
Programming Exampie”
ф
Set all instruments
on bus to remote.
Set counter N to zero,
Set counter F to 440,
Set GIGLA to:
Sine, norm input, FM off,
offset zero, amplitude
1V, output enabled.
Routine
rr Loop”
23,4
Set 8165A to frequency 1,
Programming
contained in counter F.
Route “ok,”
Store operating modes
and parameters in 8165A
Print „Program error!”
7
Read error message,
decode and print
8
Display , Error!
Press Continue”,
9
ge mn mm ee
| Operator presses |
| computing controiler's [
| CONTINUE key |
be re ae re re re =}
19,11
Figure 3—15, IHustrative Flow Chart
memory location N
12
Wait 1 second
Set N to N+1
13
Set F to F 21/12
a 16,17
Routine
“End
Disable 8165A output,
Display , Program
completed”.
18,19
CT
20
Numbers refer to program
steps in Figure 3-16,
Programming Model B165A
Remote control command REN pulled true).
| HP-IB interface address
x&quot; N counter set to zero
+ &laquo; 1 Hor 1” 1 FE #
1 &quot; Lah T 1 &quot;Y EN
Low FOR PE DOOM E
Ad hoe UE I TU
dl ES by eb e my + La end A
He TION al at
| = | Display in fixed point format, no digits after decimal point
F counter set to 440
Write command (9825A is talker).
HP-18 interface address,
8165A address (binary).
| „о Sine.
| | FM off,
Normat input mode,
AS Further parameter and mode definition, Could also be combined in step 2,
; = or
&ntilde; a me
! i wl ew A
on i Ра я fi j Г.
i E tl
E ‘лы
В Обе Eure Enter routine “loop”, address 8165A as listner, set 8165A frequency to
E contents af F counter,
FE OH Po 54 яой
L ms |
Fi
E sE rea PUT Y $ TE: Test for service request. Enter routine &quot;OK&quot; if no SRO. (Note:
Peon 3 7 E RP PE 1
on ae Ha #28 1. When a talker makes a service request, it sets HP-15 DIO line 7 true in addition to setting the SRQ
wom Ty DE .
и ul line true.
2. DIO fine 7 becomes MSB of 9803A/8825A status byte, Thus status byte takes value == 128 when.
DIO 7 set true, ;
я ap CF Ecap, Print commands and reac-in of S165A's error message, Binary weighting of DIO 7 is subtracted to give |
H
fon ОР
Go ee EN error codes (Table 3-73.
&Icirc; 3 ' war ь
EE EE Example: 2) орд de ом |
a им ПОРТ, СРР!
mi rit КОРОВ | qu
= ORO NO ae e oem E | fr
WT ат PA eo PEE wm oa # dnd
а PE En Prop: Di ;
as ispiay strin
DE amo eme 1 Day 9
Eo a В Eo =
PEs mpd dana hb Programmed stop,
+ Pis ato mtm” Directs to routine “loop” {step 5) when continue key has been pressed.
(ti Ab LF Routine &quot;O,K.” Addresses 8165A, instructs to store operating parameters/modes in location №,
БРВ: ОВО NM
i LES bd EEE 1 second pause.
Pod pb RH Increment N
LS: if Biete
er | Branch to routine &quot;end&quot;.
Fis #271170 21%F Caloutate next F
ТРЕ Вбр Directs to subroutine loop” (step 5)
FEE Ce” 8165A output disabled
Di CBE Como
AIM Cem lated! Display string
dis Cr
ЗВ!
Figure 3—18. Program Example
3—14
Model 8165A
Table 3-8. HP-IB Code Assignments (ASCH) for the 8165A
APPLIES ONLY IN COMMAND MODE (ATN TRUE)
THESE CHARACTERS CAUSE SAO
THESE CHARACTERS ARE IGNORED
wiml~wloio] slew! af wie,
2; 1
ojo
O11
110
+ | 1
919
91
110
111
oro
O
70
111
wh lb] = | | ODIO OO
a | fom
Lar ad
= |
=&gt;
Fl | wah
D100 pd ре | СА di. рб
Programming
SAME
INTERPRETATION
SAME
INTERPRETATION
Mode! 8165A
Performance Tests
4-1 INTRODUCTION
4—2 The procedures in this section test the electrical
performance of the instrument using the specifications of
Table 1—2 as performance standards, Ali tests can be per-
formed without access to the interior of the instrument.
4-3 EQUIPMENT REQUIRED
4-4 Equipment required for the performance tests is
listed in Table 1—1, Recommended Test Equipment. Any
equipment that satisfies the critical specifcations given in
the table may be substituted for the recommended model{s).
4-5 TEST RECORD
4-8 Results of the performance tests may be tabula-
ted on the Test Record at the end of the test procedures.
The Test Record lists all of the tested specifications and
their acceptable limits, Test results recorded at incoming
inspection can be used for comparison in periodic mainten-
ance, troubleshooting, and after repairs or adjustments,
4-7 PERFORMANCE TESTS
4-8 The performance tests given in this section are
suitable for incoming inspection, troubleshooting, or preven-
tive maintenance. During any performance test, ail shields
and connecting hardware must be in place, The tests are
designed to verify the published instrument specifications,
perform the tests in the order given and record the data on
the test card and/or in the data spaces provided at the end
of each procedure.
4-9 Each test is arranged so that the specification is
written as it appears in Table 1-2. Next, a description of
the test and any special instructions or problem areas are
included. Each test that requires test equipment has a setup
drawing and a list of the required equipment. The initial
steps of each procedure give control settings required for
that particular test.
Performance Tests
PERFORMANCE TESTS
Model 8165A
4-10 FREQUENCY
SPECIFICATION
1.000 mHz to 50.00 MHz {1,000 mHz to 19.99 MHz for 20 % and 80 % duty cycle/symmetry).
Accuracy in NORM input mode: 0.001 %.
BASA COUNTER
Ld
Co fl
o
500 &iquest;04D (EXT OR м
Figure 4—1. Test Setup for Frequency and Burst
EQUIPMENT
Counter
Cable Assembly BNC (61 cm)
Feedthrough Termination b0 12 (if necessary).
PROCEDURE
1. Connect equipment as shown in Figure 4-1
2. Set 81654 as follows:
INPUT MODE 2.244041 444 4 4 4 se ee ee ee eee &agrave; a ae = NORM
FUNCTION ee re ee ee ee ee ee ee ea e SQUARE
DUTY CYCLE 211244 4 4 4 4 4 4 4 4 4 1 4 4 2 4 4 4 4 4 2 4 4 4 8 4 14 0 50%
&lt;A OFF
AMPL. 122 4 14 2 8 4 4 A 4 4 1 4 8 4 na rea e ero a ae ana. Tv
OFFSET ae) aa aaa ee a ОУ
OUTPUT MODE aaa aa aaa de 1 4 440 ENABLE
NORM
50 52
3. Set counter to frequency measurement,
4, Set B165A frequency and verify counter frequency reading as follows:
8165A setting Counter reading
50.0 MHz 500000 MHz T 500 Hz
10.0 MHz 10.6000 MHz &copy; 100 Hz
10.0 kiMz 10.0000 kHz F 0.1 Hz
1.00 kHz 1.00000 kHz + 6.01 Hz
5. Set 8165A frequency and verify counter period reading as follows:
SIGDA setting Counter reading
1.00 Hz 1.00000 $ # 10 45
100 mHz 10.00000 s &pound; 100 us
Model 8165A | Performance Tests
PERFORMANCE TESTS
4-11 BURST
SPECIFICATION
A pre-programmed number of output cycies is generated on receipt of an input trigger signal or manual command, min time
between bursts: 50 ns. Burst length: 7 to 9999 cycles.
EQUIPMENT -
Counter
Cable Assembly BNC {61 cm)
Feedthrough Termination b0 &pound;2 {if necessary).
PROCEDURE
1. Load Burst number 8165 into 816bA.
2. Set 8165A as foilows:
INPUT MODE 144114 4 404 4 4 4 4 4 44 4 4 4 4 4 4 area da da era. BURST
FUNCTION 21 14 4 4 4 44 4 4 4 4 44 4 4 8 4 4 4 4 4 4 4 4 44 4 4 4 4 4 4 4 20 SQUARE
DUTY CYCLE aaa ae aa aa e aaa ae a 50 %
РМ 22а неон вн на OFF
FRO 1 11214 4 1 4 1 1 4 4 4 4 e aaa aa aaa a aaa aa ea a a ra a ra 10 kHz
AMPL aaa aaa aaa a aaa e ea aa aaa iv
OF ESET Le ee ee ee ov
BURST aaa aaa aaa ea 4 4 4 4 4 4 4 14 8165
OUTPUT MODE 10 11 41 14 4 4 4 41 4 0 4 4 4 4 4 1 4 4 ee ee eee ENABLE
NORM
50 &pound;2
3. Use figure 4—1 test setup and set counter to START,
4, Press 8165A's MAN button and verify that counter now displays the set number (8165) of output cycles,
(5345A reading will be 8164, since first pulse arms the counter).
Performance Tests
Model 8165A
PERFORMANCE TESTS
4-12 AMPLITUDE AND OFFSET
SPECIFICATION
Amplitude and offset independently variable within = 10 V. Source impedance: selectable B02 + 1 % ог 1 КО E 10%, in
paralle! with 50 pF.
Ranges: 10.0 mVpp to 10.0 Vpp (50 &pound;2 into 50 &pound;2} and 2.00 Vpp to 20.0 Vop (1 КО into 50 &pound;2).
EQUIPMENT
Digital Voltmeter
Cable Assembly BNC {1 x 61 cm}
Feedthrough Termination 50 {2
Power Attenuator 20 dB, 20 W
PROCEDURE
Accuracy: Sine Square Triangle {| Ramp Pulse
{30%} (20%, 80%) | (20%, 80%)
&lt; ! kHz + 2% | +2% + 2% + 2% + 2%
1 КН; — 5 МН: 2% | +2% + 2% + 5% + 2%
S MHz — 20 MHz |+5% | 15% + 10% + 10% +5%
20 MHz — 50 MHz | +5% 1 +5% + 5% to -20% -— =
6 T65A
о &copy;
ЗУМ
500 LOAD TERMINATION — — ——”
2008 ATTENATOR—
Figure 4-2. Test Setup for Amplitude and Offset.
1. Connect the equipment as shown in Figure 4-2.
2. Set 8165A as follows:
Total attenuation to be within
+ 0.5 % of nominal.
INPUT MODE 2.111121 111 LL LL A LL 2 4 ee NORM
FUNCTION aaa ae area oo conde 0 SINE
DUTY CYCLE ua aaa ae 50%
РМ ‚скай веи венно е канали н нина ниннеео, OFF
FRO &copy; re ee ee ee 10 kHz
OFFSET ot ee ee ee eee Ov
OUTPUT MODE eu aaa aaa ea aaa raro ENABLE
NORM
1k0
Mode! 8165A
PERFORMANCE TESTS
Performance Tests
7
Using best DVM resoiution, measure the RMS voltages for the following 8165A settings:
QUTPUT AMPL
MODE
1 k%2 20,0 V
50 &pound;2 10,0 V
FUNCTION
Sine
triangle
square
Sine
triangle
square
Remove 20 dB attenuator and continue;
50 {2 5,00 V
50 82 3.00 V
50 &copy;} 1,00 V
50 &copy;} 100 mV
Set B165A to TRIG mode.
Sine
triangle
square
Sine
triangle
square
Sine
triangie
square
Sine
triangle
square
DVM Reading
0,693 V — 0,721 V
0.566 V — 0,589 V
0,280 М — 1,02 V
0.347 V — 0,361 V
0,283 V — 0,294 V
0,49 V — 0,51 V
1,73 \ — 1.80 \
1,41 Y - 1,47 \
2.45 V — 2,55 V
1.039 \ — 1,082 V
‚849 \ — ‚883 \
1.47 Y — 1,53 Y
0,347 V — 0,361 V
0,283 V — 0,294 V
0,49 Vv — 0.51 V
34.7 mV — 36,1 mV
28.3 mV — 29.4 mV
AA mv — Bl mV
Using best DVM resolution, measure the dc voltages for the following 8165A settings:
OUTPUT
MODE
tk
50 $}
50 &copy;
OFFSET
13.0 Y
500 V
3.00 V
Remove 20 dB attenuator, and continue:
50 &copy;
50 &copy;
1.00 V
100 mv
DVM Reading
9,880 V — 10,12 V
4,930 V — 5.070 V
2,950 V — 3,050 V
0,970 V — 1,030 V
79 mV — 121 mV
Performance Tests Mode! 8165A
PERFORMANCE TESTS
4—13 SINE CHARACTERISTICS
SPECIFICATION
Harmonic Components: Up to 5 MHz, THD &lt; 1% of
fundamental. Above 5 MHz, all harmonics at least 30 dB
below fundamental.
Spurious: all non-harmonically related outputs at least
40 dB below fundamental.
SPECTRUM
ANALY 7ER
ANALYZER
00 &copy;
Figure 4—3, Test Setup for Sine Characteristics
EQUIPMENT
Specirum analyzer
Cable assembly BNC {1 x 61 cm}
PROCEDURE
1. Connect the equipment as shown in Figure 4-3,
2. Set 816bA as follows:
INPUT MODE &copy;. aa aaa aaa 4 0 NORM
FUNCTION aaa aa aaa ee SINE
DUTY CYCLE 2.144414 44 4 4 4 4 4 4 4 4 A 4 4 V4 4 4 4 aaa aaa 50 %
FM naaa aaa dana rex ne dae na ea a arena ona ra OFF
FRO ee 4 A 4 AV LA 444 1 MHz
AMPL 14 144 4 4 4 4 4 4 4 2 4 4 4 V4 A 4 4 4 4 4 44 aaa a ee nee rea 1.99 V
OFFSET ae ea aaa aaa aaa aaa ОУ
OUTPUT MODE aa aaa aaa ENABLE
NORM
50 &pound;2
3. Tune spectrum analyzer for minimum display amplitude. Adjust gain so that fundamental corresponds to 0 dB.
Verify that the 2nd and 3rd harmonics do not exceed the — 42 and — 47 dB levels, respectively,
Model 8165A Performance Tests
PERFORMANCE TESTS
ANALYZER REFERENCE
| , FUNDAMENTAL, Ug
IGNORE LEVELS
BELOW — 60 dB
5TH HARMONIC, Uy
&gt; 47H HARMONIC, Us
HARMONIC, Ug
2ND HARMONIC, Un
ай
Figure 4—4, Typical Spectrum Analyzer Display at 1 MHz
4. Verify that THD &lt; 1% (THD = (U12 + U92 + U32 +... . } 1/2, 100/Ug)
5. . Set8165A FRQ to 50 MHz.
6. Tune spectrum analyzer for minimum display amplitude. Adjust gain so that fundamental corresponds to 0 dB.
Verify that no harmonics exceed the — 30 dB level.
; FUNDAMENTAL
4&deg;&quot; HARMONIC
3FDUARMONIC
2ND HARMONIC
Figure 4-5. Typical Spectrum Analyzer Display at 50 MHz
Performance Tests
PERFORMANCE TESTS
4—14 PULSE CHARACTERISTICS
SPECIFICATION
Transition times
(10% to90%): &lt; 3 ns,
&lt; 7 ns {1 k&sect;2 into 50 &pound;2).
Preshoot/Overshoot/Ringing: + 5%,
+10% (1 k into 50 &copy;).
SAMPE ING
OSCILLOSCOPE
8 1854 | |
o So &copy;
SO LOAD TERMINATION ——— ==
7008 ATTENUATOR — 7&quot;
Figure 4—6, Test Setup for Pulse Characteristics.
EQUIPMENT
Sampling oscilloscope
Cable assembly BNC (2 x 61 cm)
Feedthrough termination 50 82
Power attenuator 20 dB, 20 W
PROCEDURE
1. Connect the equipment as shown in Figure 4—6,
2. Set the 816bA as follows:
INPUT MODE 110204 11 4 4 4 14 4 4 4 4 4 4 4 4 4 4 4 2 4 ee ee a 2 0 NORM
FUNCTION 12 14 4 4 4 4 44 4 4 4 4 4 4 4 4 4 4 4 A 4 A 4 4 4 1 4 4 2 4 a 14 0 SQUARE
DUTY CYCLE ... 144244 4 eee aaa aa aaa a ea ae aa ares 50 %
FM aaa aaa aaa ae aaa aaa aa a nado OFF
FRO aaa ea eee a 4 4 4 4 4 4 4 aaa aaa a 1 MHz
AMPL aaa aaa aaa aaa aerea e a nea Rare TV
OFFSET 1 444 4 4 4 4 4 4 4 4 4 4 4 8 aaa aaa aaa aaa ov
QUTPUT MODE aida aa ee ae aaa a aaa ae aaa aaa ENABLE
NORM
50 &copy;?
3. Set scope so that one cycle fills the display {Figure 4-7).
leading edge {risetime) &lt;5 ns
trailing edge (risetime) &lt; 5 ns
preshoot &lt;+5% of amplitude
overshoot and ringing &lt; + 5 % of amplitude
Mode! 8165A
Model 8165A
PERFORMANCE TESTS
Performance Tests
4-15 RAMP CHARACTERISTICS
SPECIFICATION
Linearity {10% to 90%): + 1 % {up to 5 MHz), + 5% {above 5 MHz)
EQUIPMENT
Sampling oscilioscope
Cable assembly BNC {2 x 61 cm)
Feedthrough termination 50 &copy;
Power attenuator 20 dB, 20W
PROCEDURE
1. Connect the equipment as shown in Figure 4--6.
2. Set the 8165A as follows:
INPUT MODE 2102111 44 4414 4 44 414 4 4 4 444 4 4 44 44 4 42 20 NORM
FUNCTION 2411 4412120 aa aa ea aa aa aaa aaa a TRIANGLE
DUTY CYCLE 21102111 4 444 4 44 4 4 4 4 4 4 4 4 4 4 4 44 4 4 aa ema 50 %
РМ ee ee eee ee OFF
FRO ae aaa ae aan aaa a a aa a aa aaa 1 MHZ
AMPL ae ae aa aaa aa ae a ea aa aaa a aaa ar tv
OFFSET 2 4 2 4 4 4 4 1 4 4 4 4 4 4 4 4 4 414 4 4 RL 4 4 4 4 4 a a aa aa a ОУ
OUTPUT MODE 24444 4 4 4 1 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ee ENABLE
NORM
. ; 50 &pound;2
3. Set scope so that one cycle fills the display.
4. Verify leading edge non-linearity {Figure 4-7) &lt;x 1 % of amplitude.
5. Set 8165 A output mode to INV and verify that signal changes polarity,
- Width =
pa Setting Time —————— wo
Y |
Overshoot 7 1 |
# и ~ il 1 Sag or Droop |
90% ИТ + —Ringing ano ?
Rounding !
/
/
/ a Nonlinearity
Fe
{ Amplitude
/
/
\ Rounding
11096 mr 10% — y
! / AU AI
Preshoot / Rise _ E К
; Time — Time
Period
Figure 4-7, Pulse Parameters
Model 81654
PERFORMANCE TESTS
Performance Tests
4-16 GATE AND TRIGGER PERFORMANCE
SPECIFICATION
Trig: pos. ext input pulse &gt; 10 ns wide generates one output
cycle. Upper level 2 +250 mV, lower level &lt; OV.
Gate: oscillator enabled when ext input 2 +250 mV, dis-
abled when &lt; 0 V. First and last output cycles are always
complete.
Max input: + 20 Y
Input impedance: 10 k{ typical
SAMPLING
OSCILLOSCOPE
PULSE GENERATOR BT65A a
&copy; p po O dia
Teer
Figure 4-8, Test Setup for Burst Gate and Trigger Performance
EQUIPMENT
Pulse generator
Oscilloscope
Cable assembly (3 x 67 cm, 2 x 30 em)
BNC Tee,
Feedthrough termination 50 0
PROCEDURE
2.
Connect the equipment as shown in Figure 4—8.
Set the 816HA as follows:
INPUT MODE aaa eee ea aaa ea aaa a ae a a GATE
FUNCTION 114 444444 4 44 4 4 6 4 4 4 4 4 4 444 4 4 4 44 4 4 4 4 4 4 46 SINE
DUTY CYCLE eee ea 50 %
ВМ a aa aaa aaa aaa aaa aaa aaa OFF
FRO ee ee ee ec 100 kHz
AMPL ee KR 4 A A 440 1V
OFFSET 14 44 6 4 44 4 4 84 4 4 44 8 4 84 4 4 4 4 4 14 4 4 4 4 ae a era CV
OUTPUT MODE ee ee ee ee 4 0 ENABLE
NORM
50 &sect;2
Model 8165A Performance Tests
PERFORMANCE TESTS
3. Set pulse generator for output pulse approx 50 us wide, rep. rate 1 kHz, baseline zero or more negative, puise top
+ 250 mV. Verify that each positive gate releases a burst of output cycles and that each cycle is complete (Figure 4-9),
EXT INPUT
SYNC OUTPUT |
OUTPUT
0.01 ms/div, 9.5 V/div.
Figure 4-9. Example of correct gate operation
4. Set 8165A to TRIG mode. Verify that each trigger pulse generator one complete output cycie (Figure 4-10).
EXT INPUT
SYNC OUTPUT
OUTPUT
2.0 Ms/div, 0.5 V/div.
Figure 4—10. Example of correct trigger operation
4-11
Performance Tests Model 8165A |
PERFORMANCE TESTS
4-17 FM.
SPECIFICATION
Output is frequency modulated by an external voltage applied to a rear pane! BNC, O to &pound; 1 V modulates 0 to + 1 % deviation,
ESTIELLOSCOFE
спа pen | |
&copy; 2
7 79 9 019
MODE INPUT —
(REAR PANEL)
Figure 4-11. Test Setup for FM
EQUIPMENT
Oscillator
Oscilloscope
Cable assembly BNC (3 x 61 cm)
PROCEDURE
1, Connect the equipment as shown in Figure 4—11.
2, Set oscillator to 10 kHz, 2 Vpo
3. Set oscilloscope to 1 us/div main timebase, 0.05 us/div delayed time base,
4. Set the 8165A as foilows:
INPUT MODE aaa aaa aaa aa NORM
FUNCTION aaa aaa aaa ae aaa aa aa aaa aaa SQUARE
DUTY CYCLE 144 4 4 4 4 4 VV 4e 4 4 A 4 4 4 4 A 4 4 4 4 4 4 4 A 4 4 4 1 0 53 %
РМ ee ee ee ee ee ee ON
&quot;RQ LL ee ee ee ee, 1 MHZ
AMPE ee ee ee ee ee ea ea 1 V
OFFSET 244 41 414 4 14 4 4 4 4 LV 4 4 4 4 4 44 4 4 LL 4 4 4e 1 4 aa ov
OUTPUT MODE 214 1 4 1 44 4 4 4 4 4 4 4 4 4 VV 4 4 4 aa aaa aa ENABLE
NORM
50 &copy;
5. Check the delayed sweep for a jitter of 2 div + 10 %.
6. Turn FM off, verify that the delayed sweep jitter &lt;&lt; 0.2 div.
Моде! 8165A
PERFORMANCE TESTS
Performance Tests
4-18 SWEEP (OPTION 002 ONLY)
SPECIFICATION
Provides logarithmic up/down sweep up to 3 decades between limits set on the 8165A,
As in VCO mode, 4 bands limited to less than 3 decades Min frequency 1 mHaz.
Sweep-rate: 0.01, 0.1, 1, 10, 100, 1000 seconds per decade selectable.
Trigger: one up-down sweep per trigger pulse (upper
level = +250 mV, lower level &lt; 0 Y, width &gt; 10 ns).
Accuracy: sweep start frequency: i15% &pound;&pound; 0.5% of max, stop frequency
sweep stop frequency: + 15%
Resolution: 2 digits
81654 COUNTER
|}
no
500 LOAD (EXT OR NN
Figure 4—12, Test Setup for Sweep Option 002
EQUIPMENT
Counter
Cable assembly BNC (1 x 61 cm)
Feedthrough termination 50 &pound; {if necessary).
PROCEDURE
1. Connect the equipment as shown in Figure 4-12.
Performance Tests
PERFORMANCE TESTS
Model 8165A
2.
3.
4-14
Set the 8165A as follows:
INFUT MODE
FUNCTION
na arena aa aaa aaa er re nad a ma ren
Cr ee hm ae eam hrm am ae er a a ae ee ee ea a ae ea
Ce ae ee eee ee ee ee ea ee eee
FM aaa aerea a aran nd done earaa na
aaa Aaa aa Ea ERA ea aa aa na aaa
АМРЕ LL ee ee ce
ие чт вк я 1 EB OF # 4 4 OF &amp; 4 KF F 4 rr FT &reg; 1 4 1 EE FF &yen; # FF iL mm 4 x 4 mw 8
LC
SWEEP START
SWEEP STOP
SWEEP TIME
т + * + FPF + 4 4 1 + ww 1 4 + &reg; 4 # x 4 4 wm &amp; &sect; wm Fr a4 &reg; 4 &reg; a &reg; a 1
4 4 #4 #4 #+ K&yen; = EF #8 * 1 TT &reg; FB mE FF 4 x 4 &amp; 1 &yen; 4 + &yen; &laquo;&pound;&pound; Fr m ww &reg; a4 &reg; a m
Li 2 x xr 4 F = rr A + I FL F 4 Fr x WwW iL = &yen; 4 + Fr += &reg; E &reg; &reg; &amp; 1 &reg; &reg;&raquo;
Verity counter reading for the following settings:
SWEEP START SWEEP STOP Counter reading
10 kHz 10 kHz 10 kHz + 1,5 kHz
1 MHz * MHz 1 MHz + 150 kHz
40 Miz 46 MHz 40 MHz + 4,7 MHz
О \
ENABLE
NORM
50 &copy;)
10 kz
10 kHz
1 s/decade
Model 8165A
PERFORMANCE TESTS
Performance Tests
4-18 AMPLITUDE MODULATOR (Option 002 only}
SPECIFICATION
{Option 002 only}: 0 to 2.5 Vpp modulates 0 to 100 % modulation depth,
Modulating Frequency: dc to 10 MHz (- 3 dB).
Input impedance: 10 k&amp;2 typical.
Pulse Modualtion: transition times &lt; 50 ns,
Envelope Distortion: {dc to 250 kHz mod. freq.}:
Carrier Modulation Distortion
&lt; 1 MHz 0 to 90 % &lt; 1%
&gt; 1 MHz О 10 30 % &lt; 3%
Carrier Frequency Deviation: &lt; 0.01 %, 0 to 30 % modulation,
OSCILLOSCOPE
OSCILLATOR Ÿ 8165A
EQUIPMENT
Oscillator
Oscilloscope | O O 00
Figure 4--13,
PROCEDURE
1. Connect the equipment as shown in Figure 4—13.
2. Set the 8165A as follows:
INPUT MODE 2.244444 44 4 44 4 44 rand ed era adredao ra aa NORM
FUNCTION 2144 4 404 2 4 6 8 4 2 4 8 a sm nt 4 4 4 4 84 4 8 4 4 44 ea ea ea SINE
DUTY CYCLE 2444 4 4 4 4 4 4 4 4 8 8 4 8 4 4 8 4 4 8 8 4 na dra en runa 50 %
РМ 2 1 4 4 4 4 arar rare de 4 4 4 8 4 4 4 4 aa aa nao aaa a naa OFF
FR&Uuml; 0058 ER HKRORR KR RKUR UK KORURRUKUNR OR EUR UN RR RR a RR ar 2 ar 100 kHz
AMPL adams aaa orend ra e dr ira aa ona e a ea -
OFFSET eurra e rare erre nz e e rerAa oa ra o ra a reo OV
OUTPUT MODE 1244 4 4 6 4 1 8 2 8 4 4 4 4 4 4 4 4 4 4 5 Ea aa e e rias ENABLE
NORM
50 &pound;2
SWEEP START = 24 4 4 8 4 4 4 4 4 4 4 1 4 8 amerse re nad or nr Nao 1G kHz
SWEEPSTOP 2244 4 4044 4 4 4 4 4 4 A V4 4 4 4 4 4 4 4 4 4 4 44 a 0 a 10kHZ
SWEEP TIME 21050040 8 5 0 a 4 5 nada KK Ea 1 s/decade
АМ Or 5 KR RK R RR KORK RKRKRK RR KR O KK KR RR RR a WR a a kr ON
3. Set oscillator for 1 kHz and 2.5 Vpp amplitude.
The display should be of a modulation depth of 100 %.
Performance Tests
PERFORMANCE TESTS
Mode! 8165A
4-20 STORE/RECALL CAPABILITY
SPECIFICATION
10 addressable store locations plus one for existing operating state. Each location can store a complete set of operating para-
meters and modes.
Access time: 20 ms each location.
Storage time: Internal battery provides memory retention for approx 4 weeks at room temperature.
PROCEDURE
1. Set the 8165A as follows:
INPUT MODE aaa ea aaa a ea aa a e
FUNCTION aaa aaa aaa ena ne
DUTY CYCLE aaa aaa ae aaa aaa
FM aaa aaa aaa aaa aaa 0
AMPL aaa aa e aaa ae aaa
2. Press STO and 1.
3. Set the S155A as follows:
INPUT MODE 2.024444 4 44 4 4 1 4 V4 4 4 4 4 4 LL 4 A A 4 enreda
FUNCTION une aa ae aa nada ara
DUTY CYCLE SER LS
ВМ ee
AMPL ea aa aaa E Aaa aaa aaa ee aa e
OFFSE 1 EEE Fr FFF 4 + 4 E EA 4 OT EEE AE AAA AN
BURST ee,
4. Press 570 and 2.
5. Press RCL and 1, verify that the settings of step 1 are displayed,
6. Press RCL. and 2, verify that the settings of step 3 are displayed.
NORM
TRIANGLE
20 %
ON
11.11 kHz
2V
+1V
ENABLE
NORM
50 &copy;
BURST
SQUARE
99
DISABLE
INV
1 k&amp;2
Model 8165A
PERFORMANCE TESTS
Performance Tests
4-21 НРАВ CAPABILITY
SPECIFICATION
Accuracy: See Frequency Characteristics, Qutput Characteristics.
Settling times:
Frequency: &lt; 20 ms to + 5% of programmed value. In
Norm mode, and in Trig, Gate, Burst at frequencies
&lt;1 kHz: &lt;70 ms tot 2% of programmed value,
&lt; 300 ms to final value.
Other Functions: 20 ms. The following range changes can
take up to 200 ms:
Change of duty cycle.
Selection to or from Sweep/VCO.
Changing up to/down from the following decades:
Frequency 1 kHz, 10 kHz, 100 kHz, 1 MHz, 20 MHz.
Amplitude 100 mV, 1 V
Offset 1 V.
CONTROLLER 87654 COUNTER
ich | se
Figure 4—14, Test Setup for HP-IB Operation
EQUIPMENT
System controller
Counter
Cable assembly {1 x 81 cm)
PROCEDURE
t. Connect the equipment as shown in Figure 4-14.
2. Load program presented in Figure 3-16 (modify wait command in step 13 to 10 s — or as desired).
3. Run program and verify functional operation.
4, Verify accuracy of first and last programmed frequencies:
Programmed frequency Counter reading
440 Hz 440 Hz &pound;4.4 mHz
739.99 Hz 739 Hz 1 7.4 mHz
Performance Tests Model 2165A
PERFORMANCE TESTS
Table 4-4. Performance Test Record (1 of 3)
Hewlett-Packard Company
Model 8165A/8165A Option 002 Tested By
Programmabie Signal Source
Serial No. Date
Results
Para. No. Test Description Actual Min Max
4-10 Frequency
50.0 MHz 49.9995 MHz 50.0005 MHz
10.0 MHz 9.9999 МН; 10.0001 MHz
10.0 kHz 9.9999 kHz 10.0001 kHz
1.00 kHz 0.9999 kHz 1.00001 КН?
1.00 Hz 0.99999 $ 1.00001 5
100 mHz 9.99990 $ 10.00001 s
4—11 Burst yes/no
Number of actual output
cycles same as set burst length ?
4-12 Amplitude and Offset
OUTPUT AMPL. FUNCTION
MODE
1 ke 20.0 Y sine 0.093 V 0.721 Y
triangle 0.560 V 0.589 V
square 0.980 V 1.02 V
50 Q 10.0 V sine 0.347 V 0.361 V
triangle 0.283 V 0.294 V
square 0,49 V 0.51 V
50 &copy; 5,00 V sine * 1.73 V 1.80 V
triangle * 1.41 V 1,47 V
square ” 2,45 V 2.55 V
50 &copy; 3.00 V sine * 1.039 V 1.082 V
triangle ” 0.849 V 0.883 V
square * 1.47 V 1,53 V
50 &copy; 1,00 V sine * 0.347 V 0.361 V
triangle * 0.283 V 0.294 V
square * 0,49 V 0.51 V
50 € 100 mV sine &copy; 34.7 mY 36.1 mV
triangle &copy; 28.3 mV 29.4 mV
* Remove 20 dB attenuator - square * 49 mV 51 mV
4-18
Model 8165A
PERFORMANCE TESTS
Performance Tests
Table 4-4, Performance Test Record (2 of 3}
Results
Para No. Test Description Min Actual Max
OUTPUT OFFSET
MODE
1 kQ 10.0 V 9.880 V 10.12 V
50 &copy; 5.00 V 4,330 V 5.070 V
50 Q 3.00 V 2.950 V 3,050 V
50 &copy; 1,00 V 0.970 V 1.030 V
50 &copy; 100 mV 79 mV 121 mV
4—13 Sine Characteristics
{Harmonic level)
FRO = 1 MHz (and harmonic) —42 dB
FRO= 1 MHz (39 harmonic) —47 dB
FRO = 1 MHz (THD) 1%
FRQ = BO MHz {worst harmonic) —30 dB
4—14 Puise Characteristics
Leading edge &lt; bns
Trailing edge = bns
Preshoot &lt; 5% = +5%
Overshoot and ringing = —5 % &lt;= +5 %
4-15 Ramp Characteristics
Leading edge linearity &lt; —1% &lt;= +1 %
INV/NORM selection o.k, ? ves/no
4-16 Gate and Trigger
Positive gate releases a
burst of output cycles, first
and last cycles complete ? yes/no
Positive trigger releases
one complete output cycle ? yes/no
4-17 FM Mode
Jitter, FM on 1.8 div 2.2 div
Jitter, FM off | 0.2 div
4—19
Performance Tests
Model 8165A
PERFORMANCE TESTS
Table 4-4. Performance Test Record (3 of 3)
Results
Para No, Test Description Min Actual Max
4-18 Sweep Mode {Option 002 only )
Sweep start = sweep stop!
10 kHz 8.5 kHz 11.5 kHz
1 MHz 850 kHz 1.15 MHz
40 MHz 35.8 MHz is 44,2 MHz
419 Amplitude Modular {Option 002 only)
Modulation depth 100 % yes/no
4-20 Store/Recall Capability
Satisfactory ? yes/no
4—21 HP-1B Capability
Functionally 7 yes/no
Settling accuracy;
440 Hz 439.9956 Hz 440.0044 Hz
739.98 Hz 738.9926 Hz 739.0074 Hz
8—6 Safety Check
Satisfactory ? yes/no
Model 8165A
Adjustments
5-1 INTRODUCTION
5-2 This section describes the adjustments which will
return the instrument to peak operating condition after
repairs are completed, An adjustment location diagram is
given on a fold-out page at the end of this section.
5-3 SAFETY CONSIDERATIONS
5—4 Although this instrument has been designed in
accordance with international safety standards, this manual
contains information, cautions, and warnings which must
be followed to ensure safe operation and to retain the
instrument in safe condition (see Sections [1 and ill).
Service and adjustments should be performed only by
qualified service personnel,
Any interruption of the protective (grouding)
conductor finside or outside the instrument or
d'isconnection of the protective earth terminal
is likely to make the instrument dangerous.
Intentional interruption is prohibited,
5-5 Any adjustment, maintenance, and repair of the
opened instrument with voltage applied should be avoided
as much as possible and, when inevitable, should be carried
out only by a skilled person who is aware of the hazard
involed,
5-6 Capacitors inside the instrument may still be
charged even if the instrument has been disconnected from
its source of supply.
5—7 Make sure that only fuses with the required rated
current and of the specified type {normal blow, time delay,
etc.) are used for replacement. The use of repaired fuses
and the shortcircuiting of fuseholders must be avoided.
5—8 Whenever it is likely that the protection offered by
fuses has been impaired, the instrument must be made
inoperative and secured against any unintended operation.
| WARNING |
Adjustments described herein are performed
with power supplied to the instrument while
protective covers are removed. Energy available
at many points may, if contacted, result in personal
injury.
5-9 EQUIPMENT REQUIRED
5-10 The test equipment required for the adjustment
procedures is Hsted in Table 1-1, Recommended Test
Equipment. The critical specifications of substitute test
instruments must meet or exceed the standards listed in
the table if the instrument is to meet the standards set forth
in Table 1-2, Specifications.
5—11 ADJUSTMENT PROCEDURE
3 5-17 Power Supplies
85-18 VCO
55-19 Output Amplifier and
Offset Generator
8 5-20 High Frequency
5 5-21 VCO Control
5 5-22 Reference Loop
8 5-23 Baseline Centering
8 5—24 Sweep Generator (option 002)
8 5-25 Amplitude Modulator (option 002)
When repairs have been made, 8 5—17 Power Supplies
should always be carried out. Of the remaining para-
graphs, only those which the repairs could affect need
be done, Execute a paragraph completely and in the
order in which tt is presented. Only the significant
instrument settings are given.
5-13 Allowa 1 hour warm-up time before starting
the adjustments. During adjustments, keep the covers
in place as far as is possible so that the instrument's
temperature remains steady,
5—14 ADJUSTMENT RECORD
5—15 Results of adjustments may be tabulated on the
Adjustment Record at the end of the adjustment
paragraphs.
Adjustments Model 8165A
INPUT МОРЕ... к.с, NORM
5-10 ADJUSTMENTS FUNCTION кк, Triangie
DUTY CYCLE . ... a... e e made.vie, 50 %
FR OFF
5-17 Power Supplies FRO &copy; vee eee LL LL 24 9.999 kHz
AMPL клаве, 10 V
OFFSET 2. 24 44 244 6 4 4 2 nao a 0.0 Y
EQUIPMENT OUTPUT MODE ...224 4114012220 ENABLE
Digital Voitmeter NOAM
Oscilloscope 50 0
PROCEDURE
1.2
1. Set the 8165A as follows:
INPUT MODE + vv ev even eee evans NORM DVM
FUNCTION + vot coe vm mats oon eu Triangle | Low
DUTY CYCLE .........r.0a0a 50 % ASTP1
ЕМ adenda oud0 nadar e ano rn off
ERQ aran aa aaa na ae aa 3,999 kHz
AMPLe + 1110215 e Las a aa A ee 10 V ABTP4
OFFSET + vt cv st ee isn vs th ue ees 0.0 Y
OUTPUT MODE 44444 4 44 445 4 400 5 ENABLE
NORM 2
6.50 &pound;2
2.1
2. Set DVM to dc. Measure and, if necessary,
adjust the supply voltages as follows:
TP Adjust Result 3
A5 +5 V ASRS16 + 5 VE 190 mv
AB — 5 V AGRE23 —-5vE10 mV 3.1
A5 + 20 V ABR302 + 20 V E20 mV
Ab — 20 \ ASR402 —20 V I 20 mV
A5 + 17 V — + 17 V &pound; 500 mV 32
As — 29 V — —29 V € 500 mV -
3. Connect oscilloscope to each of the above д
test points in turn and verify that the
ripple &lt; 5 mVp-D in each case. дл
5-18 Voltage Controlled Oscillator
4,2
&Agrave; re-adjustment of the VCO also requires adj, procedure
5-19 to be performed,
EQUIPMENT
Digital voltmeter
Spectrum analyzer
Oscilloscope 1:1 Scope probe
Counter
Voltage source
Capacitor 0.47 uF
Note: Use shielded cable for all dc-adjustments,
PROCEDURE
1 CURRENT SOURCE BALANCE
1.1 Set B165A as follows: 4.3
Connect DVM (de, floating), measure and
adjust as follows:
DVM Adiust Result
High
ABTPZ am Note voltage E (should
He between + B mV
and — 5 mv),
ASTP3 A1BR33 Adjust for same voltage
and polarity as E,
TRIANGLE AMPLITUDE (VCO)
Connect DVM (ac) to A5TP9 and ground,
Adjust A5R71 for 695 mY rms + T mV.
QUTPUT DRIVER BALANCE
Connect DVM (de, floating) between ASTP10
and ABTP11. Adjust AT6R430 for 0 + 0.B mV.
Disconnect DVM,
LF D/A CONVERTER: RAMP DISTORTION
Connect 10:1 scope probe to A10TP1 and
set BTG5A FRO to 999 Hz.
Adjust ATOR212 for min. ramp distortion
(Figure b—1},
Figure 5—1, Ramp Distortion Adjustment
Disconnect scope.
Model 8165A
5 HF RAMP DISTORTION
5.1 Set 816A frequency to 9.999 kHz.
5.2 Connect 10:1 Probe from Analyzer to
ABTP10,
5.3 Set Analyzer:
Resolution bandwidth &laquo;+. ea 300 Hz
Frequency span/div + + + + + 4 401 4 #84 2 5540 5 kHz
Sweep time/div - +. 22044084 444 44 8 e 0.25
Sweep made + + + 20101 4 8 44 4 8 558 4 4 en repetitive
input sensitivity - ea arre о 0,2 V
5.4 Adjust A15R35 for minimum 2nd harmonic
{Figure 5—2}. Verify level is 50 dB below
fundamental or lower,
(Figure 5—2. Triangle Distortion Adjustment: LF)
6 TRIANGLE DISTORTION : HF
6.1 Connect the capacitor (0.47 uF} between
junction ASR50/R60 and ground.
6,2 Set BIG5A FRO to 50 MHz,
6.3 Adjust A15R37 for minimum 2nd harmonic,
{Figure 5—3}. Verify level is 560 dB below
fundamental or lower,
Figure b—3. Triangle Adjustment: HF
6.4 Disconnect spectrum analyzer and capaci-
tor.
7 VCO RANGE 1:999
Adjustments
7.1 Connect counter to 8165A's SYNC OUT-
PUT and set counter as follows:
Function 1.1 121 414 4 44 44 4 4 4 4 4240 Frequency &Agrave;
Channel 1, 1 4 1 44 4 44 4 a&raquo; Ria A
7.2 Set Set 8165A's INPUT MODE to VCO and
FRQ to 999 kHz.
7.3 Connect voltage source to 8165A's EXT
INPUT and adjust source for 1 kHz reading
on counter,
7.4 Measure voitage source, value should be
10 mV = 30 mV. Leave at setting obtained
in 7.3 for the following adjustment. Dis-
connect counter,
8 VCO DISTORTION
8.1 Connect spectrum analyzer to 8165A's
QUTPUT and set analyzer as follows:
Resolution bandwidth + &raquo; &raquo; es reas 300 Hz
Frequency spanfdiv, . . as &agrave; kHz
Sweep time/div 1.212214 4 4 4 4 8 2 4 440 0.1 s
Sweep mode, , . 1224144 4 404 4 4 4 2 4 0 repetitive
8.2 Adjust A15H39 for min 2nd harmonic {Figure
5-4}. Verify level is 3b dB below funda-
mental or lower,
Figure 5-4, VCO Distortron Adjustment
8.3 Disconnect voltage source.
9 HF SINE DISTORTION
9.1 Connect spectrum analyzer to 8165A's
QUTPUT and set as follows:
Resolution bandwidth .................. 300 Hz
Frequency span/div 12 11 4 4 4 1 81 11 40 5 kHz
Sweep time/div . .... o mea rare. 0,175
Sweep mode 1 1 4 vv i hr ree ee ee repetitive
5-3
Adjustments
9,2 Change the following ВТ65А settings:
FUNCTION 12 &gt; ora ERRE Sine
INPUT MODE &copy; &laquo;cc ov oo coe ee Rorm
and check that FERRO &laquo;ov oc vv 9.099 kHz
9.3 Adjust A17R340/A16R350 for minimum
harmonic {Figure 5-8), Verify that these
levels are 42 dB below fundamental or lower,
Figure 5—5, Sine Distortion Adjustment: 9.988 kHz
9.4 Set 8165A FRO to 999 Hz,
Set spectrum analyzer as follows:
Resolution bandwidth скоко ква ская няня 100 Hz
Frequency span . &raquo; . . &laquo;sessoe&raquo;oreoarore 0.5 kHz
3.5 Adjust A10R227/206 for minimurn harmo-
nic (Figure 5-6). Verify that these levels are
42 dB below fundamental or lower,
Figure 5—6. Sine Distortion Adjustment: 999 Hz
9.6 Disconnect the spectrum analyzer,
10 TRIANGLE AMPLITUDE
10.1 Connect DVM (ac) to ASTP9 and ground,
10,2 Set 8165A FRO to 110 Hz and TRIANGLE,
10.3 Adjust A10R241 for 695 mV rms +1 mV.
10.4 Change 8165A frequency to 9,999 kHz.
Verify DVM reading of 695 mV &pound; 2 mV.
10.5 Leave DVM in position,
Model 8165A
11 SINE AND SQUARE AMPLITUDE
11,1 Set 8165A FUNCTION to sine. Adjust
ATTR360 for 860.7 mV ims +1 mV,
11.2 Change frequency to 110 Hz. Verify DVM
reading of 850.7 mV &amp; 2 mV rms,
11.3 Set 8165A FUNCTION to square. Frequency
to 9,999 kHz, Adjust AT7R230 for 1204 mV
rms +2 mV.
11.4 Set 8165A frequency to 110 Hz, Verity DVM
reading of 1204 mY + 3 mV rms.
12 SINE AND SQUARE DC BALANCE
12.1 Connect DVM {dc, floating between ABTP10/
TP,
12.2 Change 8165A's FUNCTION to sine, FRO to
9.999 kHz.
12.3 Adjust A16R243 for 0 V &pound;1 mV,
12.4 Change 8165A’s FUNCTION to square, adjust
A16R240 for OV 21 mV,
13 TRIANGLE DC BALANCE
13.1 Set 8165A’s FUNCTION to triangle, FRQ to
999 Hz, INPUT MODE to TRIG. Leave DVM
in its position {step 12.1).
13.2 Adjust A10R235 for 0 V +1 mY,
5-19 Output Amplifier and
Offset Generator
Pre-condition for this adjustment is a correctly adjusted
VCO(5--18),
EQUIPMENT
Digital voltmeter, with cable and termination:
total error &lt;&lt; 0.5% at 1 kHz.
Oscilloscope, 1:1 probe
Note: Use shielded cable for ali de-adjustments,
Model 8165A
PROCEDURE
1 VOLTAGE SOURCE PRE-AMP BALANCE
1.1 Set 8165A as follows:
INPUT MODE 00 es NORM
FUNCTION 2. 4444 4 ee ee ee ee eas SQUARE
DUTY CYCLE +42 404 4 404404 401 4 0 0 + +0 50 %
ВМ he eee ее: OFF
FRO vt vr eit et ieee ee eee 9.99 kHz
AMPL 11 4 4 41 4 4 4 4 4 4 6 4 4 4 4 4 4 aa 10.0 V
OFFSET +++ 1141444 4 04 4 4 a 014 4 4 0 0.0 V
OUTPUT MODE 244244 444 8 4 1 454 + ENABLE
NORM
50 &pound;2
1.2 Connect scope via 1:1 probe to A4TP3,
1.3 Adjust A4R161 for minimum amplitude,
1.4 Set 816A OUTPUT MODE to INV. Verify
scope display &lt; 10 mVp-p. Disconnect
scope,
2 VERNIER D/A CONVERTER
2.1 Set B165A AMPL to 1.0 V, OUTPUT to
NORM, and connect DVM (de mode) to
AGTP1. ‘
2.2 Adjust ABRB0L for —4.00 V + 3 mV.
2.3 Disconnect DVM,
3 OP AMP BALANCE: U3
3.1 Set 816bA as follows:
OFFSET 40006 44 4 4 4 4 4 6 4 4 5 #4 4 7 1 F1,0V
QOUTPUT MODE. 2. 2 2 4 4 2 4 4 4 4 4 4 0000 6 ENABLE
NORM
50 $2
3.2 Connect DVM {dc, floating) to A12TP1/2.
3.3 Adjust AT2R20 for 0 Y + 0.1 mV.
3.4 OP AMP BALANCE: U2
35 Connect DVM (de, floating) to A12TP3/4,
3.6 Adjust A12R12 for O V + 0.1 mV.
4.1
4.2
4.3
4.4
5.1
5.2
6.1
6.2
6.3
7.1
7.2
7.3
8.1
Adjustments
OF AMP BALANCE: U4
Set SIGHA OFFSET to —1.0 Y.
Connect DVM (de, floating) to A12TP5/6.
Adjust AT2R3T for OV &pound; 0.1 mV.
Remove DVM,
Set 8165A FRO to 110 Hz, INPUT MODE
to THIG, OFS to 0 V. FUNCTION to
TRIANGLE.
PRE-AMP DC BALANCE
Connect DVM (de mode) to 8165A OUTPUT
via 50 &pound;2 cable and 50 Q feedthrough termina-
tion, Note: total error D VM/cable/termination
must be 0.5 % at 1 kHz,
While switching 81654 OUTPUT MODE be-
tween NORM and INV, adjust A4R111 for a
minimum offset change &lt;= 5 mV.
X1 AMPLIFIER BALANCE
set 8165A AMPL to 1,99 V and OUTPUT
MODE to NORM.
Adjust ABR 1T for an output offset of 0 V +
1 mV.
Set 8165A OUTPUT MODE to INV. Verify
offset is 0 V + 10 mV.
X2 AMPLIFIER BALANCE
Set S165A AMPL to 10 V and OUTPUT
MODE to NORM.
Adjust AGR? for an output offset of O V +
2 mV.
Set 816bA OUTPUT MODE to INV, Verify
offset is 0 V + 20 mY.
X1 AMPLIFIER GAIN
Connect DVM (ac mode) to 8165A OUTPUT
5—5
Adjustments
8.2
8.3
9.1
9.2
10
10,1
10.2
10.3
11
12
12.1
via 50 &pound;2 cable and BO {2 feedthrough termi-
nation. Note: total error DVM/cable/termi-
nation must be &lt; 0.5 % at 1 kHz.
Set 8165A QUTPUT MODE to NORM,
SQUARE.
Adjust the following amplitude settings:
S16bA Adjust DVM
AMPL (p-p) Reading (rms)
1,99 V AGROT? 995 mV rms T 1 mV
1.00 Y ABRB10 500 mV rms &pound;0.56 mV
1,50 V AGR826 750 mV rms 0,5 mV
X2 AMPLIFIER GAIN
Leave DVM connected as given in step 8.1.
Adjust the following amplitude settings:
8165A Adjust DVM
AMPL Reading
3.39 V A4H306 1.995 Y rms Ti mv
5,69 V ABR920 2.395 Y rms +2 mv
7,99 V AG6H915 3.9395 V rms +3 mV
OFFSET RANGE
Ser B155A OFFSET TO +2.56 V, AMPL
10 mV, INPUT MODE to TRIG, FUNCTION
to TRIANGLE.
Connect DVM {de} to 8165A QUTPUT,
Adjust AGRG14 for + 2.560 V+ 1 mV.
OFFSET D/A CONVERTER
Set 8165A OFFSET to + 2,55 V.
Adjust AGRGOT for + 2.550 Y + 1 mY,
OFFSET: LINEARITY
Set 8165A OFFSET to + 5.00 V, OUTPUT
MODE 1 k&pound;2, AMPL 2 V,
Model 8165A
12.2 Adjust A6R610 for + 5.000 V.
12.3 Set 8165A QUTPUT MODE to 50 Q and
| verify DVM reads + 5,000 V + 10 mv.
13 OFFSET: + 999 mY RANGE
13.1 Set G165A OFFSET to + 999 mV, &iexcl;MP 50 Q,
AMPL 10 mV.
13.2 Adjust A12R4 for + 999 mV &pound; 1 mV.
14 OFFSET: — 999 mV RANGE
14.1 Set 8165A OFFSET to — 999 mV,
14.2 Adjust A12R23 for — 999 mV +1 mV,
14.3 Set B165A OFFSET to — 5.00 V and verify
that DVM reads — 5.000 V &pound; 10 mV,
14.4 Disconnect DVM,
5-20 HIGH FREQUENCY ADJUSTMENTS
EQUIPMENT:
Sampling scope
Power attenuator 20 dB
1 SQUARE WAVE RESPONSE
1.1 Connect sampling scope via 20 dB attenuator
and feedthrough termination to 8165A OUT-
PUT, Trigger from SYNC QUTPUT.
1.2 Set B165A FRO to 10 MHz, square wave.
Adjust for best pulse shape in each of the
following ranges:.
8165A Adjust
10.0 V AACTOG/R115/C513/8526
999 mV A4C512/R525
99 mV A4C511/R524
Verify that, in all cases, overshoot {Figure
4-9) &lt;&lt; + 5 % of amplitude, transition times
&lt; 5 ns,
Model 8165A
1.3
Set 8165A OUTPUT MODE to 1 k{2 and
verify that the transition times at the above
amplitude ranges are &lt; 7 ns and pulse pertur-
bation is &amp; + 10 %.
2 50 MHz WAVEFORMS
2.1 Set 8165A FRQ to 1 MHz, AMPL, 1.99 Y,
square wave.
2.2 Connect sampling scope to 8165A output.
Adjust sampling scope for an exact 10-div.
p-p amplitude display as reference,
2.3 Set 816bA FRO to 50 MHz, waveform to
triangle,
2.4 Adjust the triangle offset and amplitude for a
signal between 0.5 Div to 9,0 Div via ABR 10
and ABRb51,
Be sure frequency is 50 MHz as in 5—21 step 3.2.
50 MHz SQUARE
3.1 Set 8165A FUNCTION to square,
3.2 Adjust ADR235 for 50 % duty cycle.
3.3 Set 8165A FUNCTION to sine.
3.4 Adjust A5C309 for 9.7 Div. signal.
3.5 Remove sampling scope.
5-21 VCO Control
EQUIPMENT
Digital voltmeter
Counter
Voltage source (TT1.)
Note: Use shielded cable for all
de-adjustments,
Adjustments
PROCEDURE
1 D/A CONVERTER
1.1 Set B165A as follows:
INPUT MODE 444 44 42 4 44 4 6 a 1 8e 4 &agrave; GATE
FUNCTION 2124 4 44 44 4 4 4 4 4 1 1 4 L&agrave; Square
DUTY CYCLE 2244425 4 5 4 4 4 45 2 240 50 %
РЕМ 2 4 8 1 4 44 4 1 6 8 4 4 4 4 4 2 8 4 4 4 4 0 OFF
FRO 224444 2 5 2 0 0 44 0 8 8 8 4 RK 4 2,56 kHz
AMPL 14 2 4 4 4 8 8 8 1 4 4 4 8 4 4 84 8 4 4&raquo; 1,00 V
OFFSET 222 4 2 2 4 4 4 4 4 4 a 4 4 4 8 2 8 44 5 0.0 Y
QUTPUT MODE, L 22 2444 4404 4 4 4 4 24 0 ENABLE
NORM
50 &copy;
1.2 Connect DVM [dc mode) between ASTP3
and ground, Apply voltage source to
EXT INPUT,
1.3 Adjust ABR318 for 2.56 V = 1 mV.
1.4 Set B165A FRO to 2.55 kHz,
1,5 Adjust ABR313 for 268 Vi 1 mV,
Re-check steps 1.3 to 1,5.
2 RANGE START
2.1 Connect counter to SYNC OUTPUT,
Set B165A FRQ to 1.00 kHz, connect DVM
(de, floating) across ASTP4/5, Change
polarity of DVM if counter reading drops.
2.2 Adjust A9R429 for OV &pound; 0.5 mV,
2.3 Remove DVM,
3 RANGE END
3.1 Connect voltage source to EXT INPUT.
Verify and, if necessary, adjust the frequency
at the following settings:
3.2 8165A Adjust Counter
FRO | Reading
9,999 kHz ABR405 9,999 kHz 2 1 %
99.9 kHz AB{*C23) 99,9 kHz + 2 %
999 kHz AS(*C23) 999 kHz 172%
9.39 MHz ABR409 9,99 MHz
1.00 MHz = A8(*R433} 1 MH2T3%
5—7
Adjustments
19.9 MHz ABR412 19,9 MHz
10,0 MHz A8{*R436) 16,0 MHz #3 %
20.0 MHz ABRALT 20,0 MHZ
35.0 MHz AB8RA420 35.0 MHz
50.0 MHz A8R418 50,0 MHZ *-
* If frequency is out of specification in one of the
ranges, change factory selected part,
** If frequency is to high, lower 20 MHz adjust and re-adj
35 MHz and 50 MHz. If necessary find best compromise
between step 3.2 and para 5-20 steps 2 to 2.4.
5—22 Reference Loop
EQUIPMENT
Counter
Spectrum analyzer
Pulse generator
Voltage source
Oscilloscope
10:1 probe
1:1 probe
PROCEDURE
1 OSCILLATOR FREQUENCY
1.1 Set 8165A as follows:
INPUT MODE +n vo vv au ss ener&raquo; NORM
FUNCTION 4 + 1 1 4 4 4 nr. .armredswvesra Sine
FM sa 1 12 0 5 0 4 85 0 60 8 4 608 0 1 4 1 2 4 OFF
1.2 Connect counter via 10:1 probe to A9TP1,
1.3 Adiust A9C602 for a frequency of 10.000000 kHz
+ 5 mHz,
1.4 Disconnect counter,
2 SINE SHAPER DISTORTION (PLL)
2.1 Connect scope to A9TP4 via 10:1 probe,
2.2 Set 8165A INPUT MODE to GATE and
FRQ to 3 kHz,
2.3 Apply + 1 V from voltage source to 8165A
EXT INPUT,
Model 8165A
Adjust with A9R313 and ASR310 the signal
2,4
amplitude and offset for best sine waveform.
2.5 Check the signal waveform between 1 kHz
and 9.9 kHz,
2.6 Re-adjust AGR313, R310, if necessary, for
best compromise,
3 MIXER BALANCE
3.1 Connect scope via 10:1 probe 10 АЭТР5.
3.2 Set 8165A to 2 kHz.
3.3 Adjust A9R406 for min. puise amplitude.
3.4 Check the puise amplitude between 1 kHz
and 9.9 kHz for &amp; 130 mVp-p.
5-23 BASELINE CENTERING
1 EXTERNAL TRIGGER LEVEL
1.1 Set external pulse generator to: frequency
500 Hz, amplitude 150 mV p-p, offset
+25 mV,
1.2 Connect pulse generator to EXT INPUT and
oscilloscope to 8165A output.
1.3 Set S165A INPUT MODE to GATE, FRO
to 1 kHz.
1.4 Adjust A7R4 for a stable gated output signal.
1,5 - Check operation with 8165A F RQ 999 Hz">
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