Anritsu 69197B, 69147B, 69187B, 69177B, 69117B User Manual

SERIES

690XXB/691XXB

SYNTHESIZED CW/SIGNAL GENERATORS

MAINTENANCE MANUAL

490 JARVIS DRIVE
MORGAN HILL, CA 95037-2809

P/N: 10370-10347

REVISION: C

PRINTED: AUGUST 2003

COPYRIGHT 2003 ANRITSU CO.

WARRANTY

The Anritsu product(s) listed on the title page is (are) warranted against defects in materials and
workmanship for one year from the date of shipment.

Anritsu's obligation covers repairing or replacing products which prove to be defective during the
warranty period. Buyers shall prepay transportation charges for equipment returned to Anritsu for
warranty repairs. Obligation is limited to the original purchaser.Anritsu is not liable for consequen
tial damages.

LIMITATION OF WARRANTY

The foregoing warranty does not apply to Anritsu connectors that have failed due to normal wear.
Also, the warranty does not apply to defects resulting from improper or inadequate maintenance by
the Buyer, unauthorized modification or misuse, or operation outside of the environmental specifi­cations of the product. No other warranty is expressed or implied, and the remedies provided herein
are the Buyer's sole and exclusive remedies.

TRADEMARK ACKNOWLEDGEMENTS

Adobe Acrobat is a registered trademark of Adobe Systems Incorporated.

NOTICE

Anritsu Company has prepared this manual for use by Anritsu Company personnel and customers
as a guide for the proper installation, operation, and maintenance of Anritsu Company equipment
and computor programs. The drawings, specifications, and information contained herein are the
property of Anritsu Company, and any unauthorized use or disclosure of these drawings, specifica
tions, and information is prohibited; they shall not be reproduced, copied, or used in whole or in part
as the basis for manufacture or sale of the equipment or software programs without the prior writt
ten consent of Anritsu Company.

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Table of Contents

Chapter 1 - General Information

1-1 SCOPE OF MANUAL
1-2 INTRODUCTION
1-3 DESCRIPTION
1-4 IDENTIFICATION NUMBER
1-5 ELECTRONIC MANUAL
1-6 RELATED MANUALS

Operation Manual
GPIB Programming Manual

SCPI Programming Manual

1-7 OPTIONS .......................1-6

1-8 LEVEL OF MAINTENANCE.............1-8

Troubleshooting .................1-8

Repair......................1-8

Calibration ...................1-8

Preventive Maintenance .............1-8

1-9 STATIC-SENSITIVE COMPONENT HANDLING

PRECAUTIONS ...................1-8

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1-3
1-3
1-3
1-5
1-5
1-5

1-5
1-5
1-5

1-10 PREVENTIVE MAINTENANCE ..........1-10

1-11 STARTUPCONFIGURATIONS
1-12 RECOMMENDED TEST EQUIPMENT
1-13 EXCHANGE ASSEMBLY PROGRAM
1-14 REPLACEABLE SUBASSEMBLIES AND PARTS 1-14

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1-11
1-12
1-14

Chapter 2 - Functional Description

2-1 INTRODUCTION
2-2 690XXB/691XXB MAJOR SUBSYSTEMS

Digital Control

Front Panel

Frequency Synthesis

Analog Instruction

YIG, SDM, SQM Driver

ALC/Modulation

690XXB/691XXB MM i

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2-3
2-3

2-3
2-4
2-4
2-5
2-5
2-8

Table of Contents (Continued)

RF Deck
Power Supply
Inputs/Outputs
Motherboard/Interconnections

2-3 FREQUENCY SYNTHESIS

Phase Lock Loops
Overall Operation
RF Outputs 0.00001 to 65 GHz
Frequency Modulation (691XXB only)
Analog Sweep Mode (691XXB only)
Step Sweep Mode

2-4 ALC AND MODULATION

ALC Loop Operation

Amplitude Modulation (691XXB only) ......2-18

Square Wave Modulation (691XXB only) ....2-18

2-5 RF DECK ASSEMBLIES ..............2-19

RF Deck Configurations ............2-19

YIG-tuned Oscillator ..............2-20

Power Level Control and Modulation ......2-20

RF Signal Filtering ...............2-25

0.01 to 2 GHz Down Converter .........2-26

0.01 to 2.2 GHz Digital Down Converter ....2-27

Switched Doubler Module............2-28

Source Quadrupler Module
Power Level Detection/ALC Loop
Step Attenuators

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2-8
2-8
2-8
2-9

2-9

2-9
2-10
2-13
2-14
2-14
2-15

2-15
2-15

2-29
2-30
2-31

Chapter 3 - Performance Verification

3-1 INTRODUCTION
3-2 RECOMMENDED TEST EQUIPMENT
3-3 TEST RECORDS
3-4 CONNECTOR AND KEY LABEL NOTATION
3-5 690XXB/691XXB POWER LEVELS
3-6 INTERNAL TIME BASE AGING RATE TEST

Test Setup
Test Procedure

ii 690XXB/691XXB MM

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3-3

3-3

3-3

3-3

3-6

3-7

3-7

3-8

Table of Contents (Continued)

3-7 FREQUENCY SYNTHESIS TESTS

Test Setup
Coarse Loop/ YIG Loop Test Procedure
Fine Loop Test Procedure

3-8 SPURIOUS SIGNALS TEST: RF OUTPUT

SIGNALS £2 GHz (£2.2 GHz UNITS
W/OPTION 21A)

Test Setup

0.01 - 2 GHz Test Procedure

0.01 - 2.2 GHz Test Procedure

3-9 HARMONIC TEST: RF OUTPUT SIGNALS

FROM2TO20GHz

Test Setup
2 - 10 GHz Test Procedure

11 - 20 GHz Test Procedure ..........3-18

3-10 SINGLE SIDEBAND PHASE NOISE TEST ....3-20

Test Setup ...................3-20

Test Procedure .................3-21

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3-10
3-10

3-10
3-11

3-12
3-12

3-12
3-15

3-16
3-16

3-17

3-11 POWER LEVELACCURACY AND FLATNESS

TESTS........................3-24

Test Setup ...................3-24

Power Level Accuracy Test Procedure ......3-25

Power Level Flatness Test Procedure ......3-26

3-12 AMPLITUDE MODULATION TEST

Test Setup
AM Input Sensitivity Procedure

3-13 FREQUENCY MODULATION TESTS

Test Setup
FM Input Sensitivity Procedure

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Chapter 4 - Calibration

4-1 INTRODUCTION
4-2 RECOMMENDED TEST EQUIPMENT
4-3 TEST RECORDS
4-4 CALIBRATION FOLLOWING SUBASSEMBLY

REPLACEMENT

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3-28
3-28

3-29
3-31

3-31
3-32

4-3
4-3
4-3

4-4

4-5 CONNECTOR AND KEY LABEL NOTATION

690XXB/691XXB MM iii

...

4-4

Table of Contents (Continued)

4-6 INITIAL SETUP

Interconnection
PC Setup — Windows 3.1
PC Setup — Windows 95/Windows 98

4-7 PRELIMINARY CALIBRATION

Equipment Setup
Calibration Steps
Alternate Reference Oscillator Calibration

4-8 SWITCHED FILTER SHAPER CALIBRATION

Equipment Setup
Log Amplifier Zero Calibration
Limiter DAC Adjustment

Shaper DAC Adjustment

4-9 RF LEVELCALIBRATION .............4-23

4-10 ALC SLOPE CALIBRATION (691XXB ONLY). . . 4-24

Equipment Setup................4-24

ALC Slope DAC Adjustment ..........4-25

4-11 ALC BANDWIDTH CALIBRATION ........4-28

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4-7
4-7

4-8

4-10
4-13

4-13
4-14
4-17

4-19
4-19

4-20
4-20
4-22

Equipment Setup................4-28

Bandwidth Calibration .............4-28

4-12 AM CALIBRATION (691XXB ONLY)........4-30

Equipment Setup
AM Calibration Procedure

4-13 FM CALIBRATION (691XXB ONLY)

Equipment Setup
FM Calibration Procedure

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4-30
4-31

4-34
4-34

4-35

Chapter5-Troubleshooting

5-1 INTRODUCTION
5-2 RECOMMENDED TEST EQUIPMENT
5-3 ERROR AND WARNING/STATUS MESSAGES

Self-Test Error Messages
Normal Operation Error and Warning/

Status Messages

5-4 MALFUNCTIONS NOT DISPLAYING AN ERROR

MESSAGE

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5-3
5-3
5-3

5-3
5-7

5-10

iv 690XXB/691XXB MM

Table of Contents (Continued)

5-5 TROUBLESHOOTING TABLES

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5-10

Chapter 6 - Removal and Replacement Procedures

6-1 INTRODUCTION
6-2 REMOVING AND REPLACING THE CHASSIS

COVERS

Preliminary
Procedure

6-3 REMOVING AND REPLACING THE FRONT

PANEL ASSEMBLY

Preliminary
Procedure

6-4 REMOVING AND REPLACING THE A3, A5,

ORA6PCB......................6-8

Preliminary ...................6-8

Procedure ....................6-8

6-5 REMOVING AND REPLACING THE A4 PCB . . . 6-8

Preliminary ...................6-8

Procedure ....................6-8

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6-3

6-4
6-4

6-4

6-6
6-6

6-6

6-6 REMOVING AND REPLACING THE A7 PCB. . . 6-10

Preliminary ..................6-10

Procedure ...................6-10

6-7 REMOVING AND REPLACING THE A9, A10,

A11, OR A12 PCB

Preliminary
Procedure

6-8 REMOVING AND REPLACING THE A13

OR A15 PCB

Preliminary
Procedure

6-9 REMOVING AND REPLACING THE A14 PCB

Preliminary
Procedure

6-10 REMOVING AND REPLACING THE A16

OR A17 PCB

Preliminary
Procedure

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6-10
6-10

6-10

6-11
6-11

6-11
6-11

6-11
6-11

6-13
6-13

6-13

690XXB/691XXB MM v

Table of Contents (Continued)

6-11 REMOVING AND REPLACING THE A18

OR A19 PCB

Preliminary
Procedure

6-12 REMOVING AND REPLACING THE REAR

PANEL ASSEMBLY

Preliminary
Procedure

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6-13
6-13

6-13

6-14
6-14

6-14

6-13 REMOVING AND REPLACING THE A21 PCB

Preliminary
Procedure

6-14 REMOVING AND REPLACING THE

A21-1/A21-2 PCB

Preliminary ..................6-18

Procedure ...................6-18

6-15 REMOVING AND REPLACING THE FAN

ASSEMBLY .....................6-19

Preliminary ..................6-19

Procedure ...................6-19

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6-17
6-17

6-17

6-18

Appendix A - Test Records

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

vi 690XXB/691XXB MM

Chapter 1
General Information

Table of Contents

1-1 SCOPE OF MANUAL
1-2 INTRODUCTION
1-3 DESCRIPTION
1-4 IDENTIFICATION NUMBER

1-5 ELECTRONIC MANUAL...............1-5

1-6 RELATED MANUALS ................1-5

Operation Manual ................1-5

GPIB Programming Manual ...........1-5

SCPI Programming Manual ...........1-5

1-7 OPTIONS .......................1-6

1-8 LEVEL OF MAINTENANCE.............1-8

Troubleshooting .................1-8

Repair

Calibration

Preventive Maintenance
1-9 STATIC-SENSITIVE COMPONENT

HANDLING PRECAUTIONS

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1-3
1-3
1-3
1-5

1-8
1-8
1-8

1-8
1-10 PREVENTIVE MAINTENANCE
1-11 STARTUPCONFIGURATIONS
1-12 RECOMMENDED TEST EQUIPMENT
1-13 EXCHANGE ASSEMBLY PROGRAM
1-14 REPLACEABLE SUBASSEMBLIES AND PARTS 1-14

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1-10
1-11
1-12
1-14

Figure 1-1. Typical Series 690XXB/691XXB Synthesized CW/Signal Generator (Model 69187B Shown)

Chapter 1
General Information

1-1 SCOPE OF MANUAL This manual provides service information for all models of the Series

690XXB Synthesized CW Generator and the Series 691XXB Synthe
sized Signal Generator. The service information includes replaceable
parts information, functional circuit descriptions, block diagrams, per
formance verification tests, and procedures for calibration, trouble
shooting, and assembly/subassembly removal and replacement.
(Throughout this manual, the term 690XXB/691XXB is used to refer
to the instrument.) Manual organization is shown in the table of con
tents.

NOTE

Service information for the series 690XXB CW generators
and series 691XXB signal generators is combined into one
manual because identical model numbers of each series con­tain the same assemblies, subassemblies, and components.
Differences between the series are noted where applicable
throughout the manual.

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1-2 INTRODUCTION This chapter provides a general description of the Series 690XXB/

691XXB Synthesized CW/Signal Generators, identification numbers,
related manuals, and options. Information is included concerning level
of maintenance, replaceable subassemblies and RF components, ex
change assembly program, and preventive maintenance. Static­sensitive component handling precautions and lists of exchangeable
subassemblies and recommended test equipment are also provided.

1-3 DESCRIPTION The Series 690XXB Synthesized CW Generator and the Series

691XXB Synthesized Signal Generator are microprocessor-based, syn
thesized signal sources with high resolution phase-lock capability.
They generate both discrete CW frequencies and broad (full range)
and narrow band sweeps across the frequency range of 10 MHz to
65 GHz. All functions of the 690XXB/691XXB are fully controllable lo
cally from the front panel or remotely (except for power on/standby)
via the IEEE-488 General Purpose Interface Bus (GPIB).

The Series 690XXB Synthesized CW Generator and the Series
691XXB Synthesized Signal Generator each presently consists of
seven models covering a variety of frequency ranges and power levels.
Table 1-1, on page 1-4, lists models, frequency ranges, and maximum
leveled output.

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690XXB/691XXB MM 1-3

GENERAL 690XXB/691XXB
INFORMATION MODELS

Table 1-1. Series 690XXB/691XXB Models

69XXXB

Model

69X17B 0.01 – 8.4 GHz +13.0 dBm +11.0 dBm +9.0 dBm
69X37B 2.0 – 20.0 GHz +13.0 dBm +11.0 dBm +3.0 dBm
69X47B 0.01 – 20.0 GHz +13.0 dBm +11.0 dBm +3.0 dBm

69X67B

69X77B

69X87B

69X97B

Frequency

(GHz)

0.01 – 2.0 GHz

2.0 – 20.0 GHz

20.0 – 40.0 GHz

0.01 – 2.0 GHz

2.0 – 20.0 GHz

20.0 – 40.0 GHz

40.0 – 50.0 GHz

0.01 – 2.0 GHz

2.0 – 20.0 GHz

20.0 – 40.0 GHz

40.0 – 50.0 GHz

50.0 – 60.0 GHz

0.01 – 2.0 GHz

2.0 – 20.0 GHz

20.0 – 40.0 GHz

40.0 – 50.0 GHz

50.0 – 65.0 GHz

Output Power

+13.0 dBm

+9.0 dBm
+6.0 dBm

+12.0 dBm
+10.0 dBm

+2.5 dBm
+2.5 dBm

+12.0 dBm
+10.0 dBm

+2.5 dBm
+2.0 dBm
+2.0 dBm

+12.0 dBm
+10.0 dBm

+2.5 dBm

0.0 dBm

–2.0 dBm

With Option 15A (High Power) Installed

Output Power

w/Step Attenuator

+11.0 dBm

+7.0 dBm
+3.0 dBm

+10.0 dBm

+8.5 dBm

0.0 dBm

–1.0 dBm

+10.0 dBm

+8.5 dBm

0.0 dBm
–1.5 dBm
–2.0 dBm

Not Available Not Available

Output Power

w/Electronic

Step Attenuator

Not Available

Not Available

Not Available

69X17B
69X37B 2.0 – 20.0 GHz +17.0 dBm +15.0 dBm +7.0 dBm
69X47B

69X67B

69X77B 0.01 – 50.0 GHz Standard Standard Not Available
69X87B 0.01 – 60.0 GHz Standard Standard Not Available
69X97B 0.01 – 65.0 GHz Standard Not Available Not Available

Note: In models with Option 22 that have a high-end frequency of£20 GHz, rated output power is reduced by 1 dB.

In models with Option 22 that have a high-end frequency of >20 GHz, rated output power is reduced by 2 dB.

0.01 – 2.0 Ghz

2.0 – 8.4 GHz

0.01 – 2.0 GHz

2.0 – 20.0 GHz

0.01 – 2.0 GHz

2.0 – 20.0 GHz

20.0 – 40.0 GHz

+13.0 dBm
+17.0 dBm

+13.0 dBm
+17.0 dBm

+13.0 dBm
+13.0 dBm

+6.0 dBm

+11.0 dBm
+15.0 dBm

+11.0 dBm
+15.0 dBm

+11.0 dBm
+11.0 dBm

+3.0 dBm

+11.0 dBm
+11.0 dBm

+11.0 dBm

+7.0 dBm

Not Available

1-4 690XXB/691XXB MM

GENERAL IDENTIFICATION
INFORMATION NUMBER

1-4 IDENTIFICATION NUMBER All Anritsu instruments are assigned a unique six-digit ID number,

such as “875012”. The ID number is imprinted on a decal that is af
fixed to the rear panel of the unit. Special-order instrument configura
tions also have an additional special serial number tag attached to the
rear panel of the unit.

When ordering parts or corresponding with Anritsu Customer Service,
please use the correct serial number with reference to the specific in
strument's model number (i.e., Model 69147B Synthesized Signal Gen
erator, Serial No. 875012).

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1-5 ELECTRONIC MANUAL This manual is available on CD ROM as an Adobe Acrobat Portable

Document Format (*.pdf) file. The file can be viewed using Acrobat
Reader, a free program that is also included on the CD ROM. The file
is "linked” such that the viewer can choose a topic to view from the
displayed "bookmark” list and "jump” to the manual page on which the
topic resides. The text can also be word-searched. Contact Anritsu
Customer Service for price and availablility.

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1-6 RELATED MANUALS This is one of a four manual set that consists of an Operation Manual,

a GPIB Programming Manual, a SCPI Programming Manual, and a
Maintenance Manual.

Operation
Manual

GPIB
Programming
Manual

This manual provides instructions for operation of
the 690XXB/691XXB using the front panel controls.
It also includes general information, performance
specifications, installation instructions, and opera
tion verification procedures. The Anritsu part
number for the Series 690XXB Operation Manual is
10370-10341; the part number for the Series
691XXB Operation Manual is 10370-10344.

This manual provides information for remote opera
tion of the 690XXB/691XXB using Product Specific
commands sent from an external controller via the
IEEE 488 General Purpose Interface Bus (GPIB). It
contains a complete listing and description of all
690XXB/691XXB GPIB Product Specific commands
and several programming examples. The Anritsu
part number for the Series 690XXB GPIB Program
ming Manual is 10370-10342; the part number for
the Series 691XXB GPIB Programming Manual is
10370-10345.

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SCPI
Programming
Manual

This manual provides information for remote opera
tion of the 690XXB/691XXB using Standard Com
mands for Programmable Instruments (SCPI)
commands sent from an external controller via the

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690XXB/691XXB MM 1-5

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GENERAL
INFORMATION OPTIONS

IEEE 488 General Purpose Interface Bus (GPIB). It
contains a complete listing and description of each
command in the 690XXB/691XXB SCPI command
set and examples of command usage. The Anritsu
part number for the Series 690XXB SCPI Program
ming Manual is 10370-10343; the part number for
the Series 691XXB SCPI Programming Manual is
10370-10346.

1-7 OPTIONS The following instrument options are available.

Option 1, Rack Mounting. Rack mount kit containing a set of

q

track slides (90° tilt capability), mounting ears, and front panel
handles for mounting the instrument in a standard 19-inch
equipment rack.

Option 2A, 110 dB Step Attenuator. Adds a 10 dB per step

q

attenuator with a 110 dB range for models having a high-end fre­quency of £20 GHz. Output power is selected directly in dBm on
the front panel (or via GPIB). Rated output power is reduced.

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Option 2B, 110 dB Step Attenuator. Adds a 10 dB per step

q

attenuator with a 110 dB range for models having a high-end fre­quency of £40 GHz. Output power is selected directly in dBm on
the front panel (or via GPIB). Rated output power is reduced.

q

Option 2C, 90 dB Step Attenuator. Adds a 10 dB per step
attenuator with a 90 dB range for models having a high-end fre­quency of £50 GHz. Output power is selected directly in dBm on
the front panel (or via GPIB). Rated output power is reduced.

q

Option 2D, 90 dB Step Attenuator. Adds a 10 dB per step
attenuator with a 90 dB range for models having a high-end fre
quency of £60 GHz. Output power is selected directly in dBm on
the front panel (or via GPIB). Rated output power is reduced.

q

Option 2E, 120 dB Electronic Step Attenuator. Addsa10dB
per step electonic attenuator with a 120 dB range for models hav
ing a high end frequency of £8.4 Ghz. Output power is selected
directly in dBm on the front panel (or via GPIB). Rated output
power is reduced.

q

Option 2F, 120 dB Electronic Step Attenuator. Addsa10dB
per step electonic attenuator with a 120 dB range for models hav
ing a high end frequency of £20 Ghz. Output power is selected di
rectly in dBm on the front panel (or via GPIB). Rated output
power is reduced.

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q

Option 9, Rear Panel RF Output. Moves the RF output con
nector to the rear panel.

q

Option 11, 0.1 Hz Frequency Resolution. Provides frequency
resolution of 0.1 Hz.

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1-6 690XXB/691XXB MM

GENERAL
INFORMATION OPTIONS

Option 14, Rack Mounting without Chassis Slides. Modifies

q

rack mounting hardware to install unit in console that has
mounting shelves. Includes mounting ears and front panel han
dles.

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Option 15A, High Power Output. Adds high-power RF compo

q

nents to the instrument in the 2–20 GHz frequency range. Op
tion 15A is standard in models having a high-end frequency that
is >40 GHz.

Option 16, High-Stability Time Base. Adds an ovenized,

q

10 MHz crystal oscillator with <5 x 10
Options 17A & 17B, No Front Panel. Deletes the front panel

q

–10

/day frequency stability.

for use in remote control applications where a front panel display
or keyboard control are not needed. Option 17A deletes the front
panel from 691XXB models; Option 17B deletes the front panel
from 690XXB models.

Option 18, mmWave Module Bias Output. Provides bias out

q

put for 54000-xWRxx Millimeter Wave Source Modules. BNC
Twinax connector, rear panel.

Option 19, SCPI Programmability. Adds GPIB command

q

mnemonics complying with Standard Commands for Program­mable Instruments (SCPI), Version 1993. SCPI programming
complies with IEEE 488.2-1987.

q

Option 21A, Digital Down Converter. Replaces the standard
Analog Down Converter (0.01 to 2.0 GHz) with a Digital Down
Converter (0.01 to 2.2 GHz).

q

Option 22, 0.1 Hz to 10 MHz Audio Frequency. Adds fre
quency coverage below 10 Mhz. In models having a high-end fre
quency of £20 GHz, rated output power is reduced by 1 dB; in
models having a high-end frequency of >20 GHz, rated output
power is reduced by 2 dB.

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690XXB/691XXB MM 1-7

GENERAL LEVEL OF
INFORMATION MAINTENANCE

1-8 LEVEL OF MAINTENANCE Maintenance of the 690XXB/691XXB consists of:

Troubleshooting the instrument to a replaceable subassembly or

q

RF component.
Repair by replacing the failed subassembly or RF component.

q

Calibration.

q

Preventive maintenance.

q

Troubleshoot
ing

Repair Most instrument failures are field repairable by

Calibration The 690XXB/691XXB may require calibration after

Preventive
Maintenance

The 690XXB/691XXB firmware includes internal

-

diagnostics that self-test most of the internal assem
blies of the instrument. When the 690XXB/691XXB
fails self-test, one or more error messages are dis
played to aid in troubleshooting the failure to a
replaceable subassembly or RF component. Chapter
5–Troubleshooting lists and describes the self-test
error messages and provides procedures for isolat
ing 690XXB/691XXB failures to a replaceable subas
sembly or RF component.

replacing the failed subassembly or RF component.
Detailed instructions for removing and replacing
failed subassemblies and components are provided
in Chapter 6–Removal and Replacement Proce­dures.

repair. Refer to Chapter 4–Calibration for a listing
of calibration requirements and calibration proce
dures.

Preventive maintenance on the 690XXB/691XXB
consists of cleaning the fan honeycomb filter, de
scribed in paragraph 1-10.

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1-9 STATIC-SENSITIVE

COMPONENT HANDLING
PRECAUTIONS

The 690XXB/691XXB contains components that can be damaged by
static electricity. Figure 1-2 illustrates the precautions that should be
followed when handling static-sensitive subassemblies and compo
nents. If followed, these precautions will minimize the possibilities of
static-shock damage to these items.

NOTE

Use of a grounded wrist strap when removing and/or replac
ing subassemblies or components is strongly recommended.

-

-

1-8 690XXB/691XXB MM

GENERAL STATIC-SENSITIVE COMPONENT
INFORMATION HANDLING PRECAUTIONS

1. Do not touch exposed contacts
on any static sensitive compo
nent.

4. Wear a static-discharge wrist­band when working with static
sensitive components.

2 Do not slide static sensitive

-

component across any surface.

5. Label all static sensitive
devices.

3. Do not handle static sensitive
components in areas where the
floor or work surface covering
is capable of generating a
static charge.

6. Keep component leads shorted
together whenever possible.

7. Handle PCBs only by their
edges. Do not handle by the
edge connectors.

10. ADDITIONAL PRECAUTIONS:

·

Keep workspaces clean and free of any objects capable of holding or storing a static charge.

·

Connect soldering tools to an earth ground.

·

Use only special anti-static suction or wick-type desoldering tools.

Figure 1-2. Static-Sensitive Compontent Handling Precautions

8. Lift & handle solid state de
vices by their bodies – never
by their leads.

-

9. Transport and store PCBs and
other static sensitive devices
in static-shielded containers.

690XXB/691XXB MM 1-9

GENERAL PREVENTIVE
INFORMATION MAINTENANCE

1-10 PREVENTIVE

MAINTENANCE

The 690XXB/691XXB must always receive adequate ventilation. A
blocked fan filter can cause the instrument to overheat and shut down.
Check and clean the rear panel fan honeycomb filter periodically.
Clean the fan honeycomb filter more frequently in dusty environ
ments. Clean the filter as follows.

Step 1 Remove the filter guard from the rear panel by pull

ing out on the four panel fasteners holding them in
place (Figure 1-3).

Step 2 Vacuum the honeycomb filter to clean it.
Step 3 Install the filter guard back on the rear panel.
Step 4 Press in on the panel fasteners to secure the filter

guard to the rear panel.









-

-

Figure 1-3. Removing/Replacing the Fan Filter Guard

1-10 690XXB/691XXB MM

GENERAL START UP
INFORMATION CONFIGURATION

1-11 STARTUP

CONFIGURATIONS

The 690XXB/691XXB comes from the factory with a jumper across
pins 2 and 3 of front panel connector J12 (Figure 1-4). In this configu
ration, connecting the instrument to line power automatically places it
in operate mode (front panel OPERATE LED on).

The startup configuration can be changed so that the 690XXB/691XXB
comes up in standby mode (front panel STANDBY LED on) when it is
connected to line power. Change the startup configuration as follows:

Step 1 Disconnect the instrument from line power.
Step 2 Remove the top cover from the 690XXB/691XXB.

(Refer to Chapter 6 for instructions).

Step 3 Locate front panel connector J12 and remove the

jumper from across pins 2 and 3. It is located on the
A2A1 PCB which plugs into the Front Panel Assem
bly.

Step 4 Install the jumper across pins 1 and 2 of connector

J12.

Step 5 Install the top cover and connect the 690XXB/

691XXB to line power. The instrument should come
up in standby mode.

-

-

Figure 1-4. Startup Configuration of Connector J12

690XXB/691XXB MM 1-11

GENERAL RECOMMENDED
INFORMATION TEST EQUIPMENT

1-12 RECOMMENDED TEST

EQUIPMENT

Table 1-2 provides a list of recommended test equipment needed for
the performance verification, calibration, and troubleshooting proce
dures presented in this manual.

Table 1-2. Recommended Test Equipment (1 of 2)

INSTRUMENT

Spectrum Analyzer,
with
External Mixers
and
Diplexer Assy

Phase Noise
Measurement
System

Frequency Counter Frequency Range: 0.01 to 40 GHz

Power Meter,
with
Power
Sensors

Digital Multimeter Resolution: 4-1/2 digits (to 20V)

Frequency Reference Frequency: 10 MHz

Function Generator Output Voltage: 2 volts peak-to-peak

Modulation Analyzer Frequency Input: 10 MHz

Frequency Range: 0.01 to 65 GHz
Resolution Bandwidth: 10 Hz

Frequency Range: 5 MHz to 26.5 GHz Aeroflex/Comstron PN9000

Input Impedance: 50
Resolution: 1Hz
Other: External Time Base Input

Power Range: –30 to +20 dBm

DC Accuracy: 0.002% +2 counts
DC Input Impedance: 10 M
AC Accuracy: 0.07% +100 counts

AC Input Impedance: 1M

Accuracy: 5x10

Functions: 0.4 Hz to 100 kHz sine and

square waveforms

(of the IF of the spectrum analyzer)

AM Depth: 0% to 90%
AM Modulation Rates: DC to 100 kHz
Filters: 20 kHz lowpass, 300 Hz highpass

CRITICAL

SPECIFICATION

W

(1mW to 100mW)

W

(to 20 kHz)

W

-12

parts/day

RECOMMENDED

MANUFACTURER/MODEL USAGE

Tektronix, Model 2794, with
External Mixers:

WM780K (18 to 26.5 GHz)
WM780A (26.5 to 40 GHz)
WM780U (40 to 60 GHz)
WM780E (60 to 90 GHz)

Diplexer Assy: 015-0385-00

with
PN9060-00 Status Module
PN9470-00 Noise Output Module
PN9450-00 Lock Control Module
PN9342-01 Phase Detector Module
PN9530-00 Crystal Oscillator Module

Anritsu Model MF2414A C, P

Anritsu Model ML2437A or ML2438A,
with
Power Sensors:

MA2474A (0.01 to 40 GHz)
MA2475A (0.01 to 50 GHz)

John Fluke, Inc., Model 8840A, with
Option 8840A-09K (True RMS AC)

Absolute Time Corp., Model 300 P

Hewlett-Packard, Model 33120A C, P

Hewlett-Packard, Model 8901A P

C, P,T

P

C, P

C, T

-

(1)

1-12 690XXB/691XXB MM

GENERAL RECOMMENDED
INFORMATION TEST EQUIPMENT

Table 1-2. Recommended Test Equipment (2 of 2)

INSTRUMENT

Oscilloscope Bandwidth: DC to 150 MHz

Vertical Sensitivity: 2mV/division
Horizontal Sensitivity: 50 ns/division

Scalar Network
Analyzer, with
RF Detector

Attenuator Frequency Range: DC to 40 GHz

Attenuator Frequency Range: DC to 40 GHz

Attenuator Frequency Range: DC to 60 GHz

Attenuator Frequency Range: DC to 60 GHz

RF Detector Frequency Range: 0.01 to 40 GHz

RF Detector Frequency Range: 0.01 to 50 GHz

Personal Computer PC Configuration: IBM ATor compatible

Serial Interface Assy Provides serial interface between the PC

Special AUX I/O
Cable Assy

Tee Connectors: 50WBNC Any common source C, P
Cables Connectors: 50WBNC Any common source C, P,T

Frequency Range: 0.01 to 60 GHz Anritsu, Model 56100A, with

Max Input Power: >+17 dBm
Attenuation: 10 dB

Max Input Power: >+17 dBm
Attenuation: 20 dB

Max Input Power: >+17 dBm
Attenuation: 10 dB

Max Input Power: >+17 dBm
Attenuation: 20 dB

Output Polarity: Negative

Output Polarity: Negative

Operating System: Windows 3.1, 95, or

98
Accessories: Mouse

and the 690XXB/691XXB.
Provides interface between the 690XXB/

691XXB and the Power Meter

CRITICAL

SPECIFICATION

Tektronix, Inc. Model TAS485 P, T

RF Detector:

560-7K50 (0.01 to 40 GHz)
560-7VA50(0.01 to 50 GHz)
SC5198 (40 to 60 GHz)

Anritsu, Model 41KC-10 C, P

Anritsu, Model 41KC-20 P

Anritsu, Model 41V-10 C, P

Anritsu, Model 41V-20 P

Anritsu, Model 75KC50
(K input/BNC output connectors)

Anritsu, Model 75VA50
(V input/BNC output connectors)

Any common source C

Anritsu P/N: T1678 C

Anritsu P/N: 806-90 P

RECOMMENDED

MANUFACTURER/MODEL USAGE

C, T

T

T

(1)

NOTES: (1) P = Performance Verification Tests (Chapter 3); C = Calibration (Chapter 4); T = Troubleshooting (Chapter 5)

690XXB/691XXB MM 1-13

GENERAL EXCHANGE
INFORMATION ASSEMBLY PROGRAM

1-13 EXCHANGE ASSEMBLY

PROGRAM

1-14 REPLACEABLE

SUBASSEMBLIES AND
PARTS

Anritsu maintains an exchange assembly program for selected
690XXB/691XXB subassemblies and RF components. If a malfunction
occurs in one of these subassemblies, the defective unit can be
exchanged. Upon receiving your request, Anritsu will ship the
exchange subassembly or RF component to you, typically within 24
hours. You then have 45 days in which to return the defective item. All
exchange subassemblies or RF components are warranted for 90 days
from the date of shipment, or for the balance of the original equipment
warranty, whichever is longer.

Please have the exact model number and serial number of your unit
available when requesting this service, as the information about your
unit is filed according to the instrument's model and serial number.
For more information about the program, contact your local sales rep
resentative or call your local Anritsu service center. Refer to Table 1-5,
on page 1-18, for a list of current Anritsu service centers.

Table 1-3, on page 1-15, lists those replaceable subassemblies and RF
components of the 690XXB/691XXB that are presently covered by the
Anritsu exchange assembly program. Table 1-4, on page 1-16, lists
common replaceable parts for the 690XXB/691XXB that are not pres­ently on the exchange assembly program.

All parts listed in Tables 1-3 and 1-4 may be ordered from your local
Anritsu service center.

-

1-14 690XXB/691XXB MM

GENERAL
INFORMATION PARTS LIST

Table 1-3. Replaceable Subassemblies and RF Components (1 of 2)

SUBASSEMBLY OR PART NAME ANRITSU PART NUMBER

Printed Circuit Board Assemblies

Front Panel Assy 691XXB ND40832
Front Panel Assy 690XXB ND40514
A3 Reference Loop PCB Assy D40603-4
A4 Coarse Loop PCB Assy D40624-3
A5 Fine Loop PCB Assy D40625-3
A6 Square Wave Generator PCB Assy D37406-3
A7 YIG Loop PCB Assy D40627-3
A9 PIN Control PCB Assy D40659-3
A10 ALC PCB Assy (691XXB) D40610-3
A10 ALC PCB Assy (690XXB) D40610-4
A11FM PCB Assy (All 691XXBs except 69117B) D40651-3
A11FM PCB Assy (69117B only) D40651-4
A11FM PCB Assy (All 690XXBs except 690117B) D40651-5
A11FM PCB Assy (69017B only) D40651-6
A12 Analog Instruction PCB Assy (691XXB) D37448-3
A12 Analog Instruction PCB Assy (690XXB) D40612-3
A13 10 MHz DDS PCB Assy D40653-3
A14 YIG, SDM Driver PCB Assy

(£40 GHz models)

A14 YIG, SDM, SQM Driver PCB Assy

(>40 GHz models)
A15 Regulator PCB Assy D40655-3
A16 CPU Interface PCB Assy D37416-3
A17 CPU PCB Assy D37444-3
A18 Power Supply PCB Assy D40638-3
A19 Power Conditioner PCB Assy D40649-3
A21 Line Filter/Rectifier PCB Assy ND49529
A21-1 BNC/AUX I/O Connector PCB Assy

690XXB

A21-2 BNC/AUX I/O Connector PCB Assy

691XXB

10 MHz Crystal Oscillator Assy D37332

40654-3

40654-4

ND49525

ND40526

RF Components

YIG-Tuned Oscillator, 2 to 20 GHz 48514
YIG-Tuned Oscillator, 2 to 8.4 GHz 37266
Down Converter D27330
Digital Down Converter 50722-1
Switched Doubler Module, 20 to 40 GHz D28540
Source Quadrupler Module, 40 to 50 GHz D28185
Source Quadrupler Module, 40 to 60 GHz 60-141

690XXB/691XXB MM 1-15

GENERAL
INFORMATION PARTS LIST

Table 1-3. Replaceable Subassemblies and RF Components (2 of 2)

SUBASSEMBLY OR PART NAME ANRITSU PART NUMBER

RF Components (Continued)

Source Quadrupler Module, 40 to 65 GHz 60-142
Coupler, 40 GHz D27115
Coupler, 60 GHz D27350
Forward Coupler, 60 GHz C27184
Switched Filter D45194
Switched Filter (w/Option 15A) D45198
Output Connector Assy “K” ND39077
Output Connector Assy “V” ND40835
Step Attenuator, 110 dB, 20 GHz D27152
Step Attenuator, 110 dB, 40 GHz D25080
Step Attenuator, 90 dB, 50 GHz D27315
Step Attenuator, 90 dB, 60 GHz D28957
Electronic Step Attenuator, 120 dB, 20 GHz 45720
Diplexer, 10 MHz 46504
Diplexer, <20 GHz 29860
Diplexer, >20 GHz 28850

Table 1-4. Common Replaceable Subassemblies and Parts (1 of 2)

SUBASSEMBLY OR PART NAME ANRITSU PART NUMBER

Cap, Protective (for RF Output K-Connector) A20304
Cap, Protective (for RF Output V-Connector) B37220
Cover, Top D37131
Cover, Bottom D37135
Cover, Side D37133
Cover, Side Handle 761-67

Cover, CPU Housing C37063
Cover, Main Card Cage D37064
Cover, Power Supply Housing C37062

EMI Gasket for side covers 790-437
EMI Gasket for side covers 790-390
EMI Gasket for Front Panel Assy 790-223

1-16 690XXB/691XXB MM

GENERAL
INFORMATION PARTS LIST

Table 1-4. Common Replaceable Subassemblies and Parts (2 of 2)

SUBASSEMBLY OR PART NAME ANRITSU PART NUMBER

Fan Assembly A40513
Fan Mount 790-425
Fan Membrane (Honey Comb Filter) C37137
Fan Grill 790-426
Fasteners (for Fan Grill) 790-433
Fuse, 5A, 3AG Slow Blow (110Vac) 631-33
Fuse, 2.5A, 3AG Slow Blow (230 Vac) 631-14
Gasket, RFI (“O”rings for MCX connectors) 790-393
Handle, Side Carrying 783-830
Screw, Handle Side Carrying 900-714

Line Module 260-11
Shield Cover D37228
Shield D37229
Standoff 785-922
Tape 850-70

Foot, Rear Bottom Left 2000-548
Foot, Rear Bottom Right 2000-549
Foot, Rear TopLeft 2000-552
Foot, Rear TopRight 2000-553
Screw, Green Head 2000-560

690XXB/691XXB without Front Handles Installed

Foot, Front Bottom Left 2000-546
Foot, Front Bottom Right 2000-547
Foot, Front TopLeft 2000-550
Foot, Front TopRight 2000-551

690XXB/691XXB with Front Handles Installed

Upper Insert B37147
Foot, Bottom Left C37170
Foot, Bottom Right C37171
Handle, Left D37168-2
Handle, Right D37169-2
Tilt Bail 790-435

690XXB/691XXB MM 1-17

GENERAL ANRITSU
INFORMATION SERVICE CENTERS

Table 1-5. Anritsu Service Centers

UNITED STATES

ANRITSU COMPANY
490 Jarvis Drive
Morgan Hill, CA 95037-2809
Telephone: [phone]
1-800-ANRITSU
FAX: [phone]

ANRITSU COMPANY
10 New Maple Ave., Unit 305
Pine Brook, NJ 07058
Telephone: [phone]
1-800-ANRITSU
FAX: [phone]

ANRITSU COMPANY
1155 E. Collins Blvd
Richardson, TX 75081
Telephone: 1-800-ANRITSU
FAX: [phone]

AUSTRALIA

ANRITSU PTY. LTD.
Unit 3, 170 Foster Road
Mt Waverley, VIC 3149
Australia
Telephone: [phone]
FAX: [phone]

BRAZIL

ANRITSU ELECTRONICA LTDA.
Praia de Botafogo, 440, Sala 2401
CEP22250-040, Rio de Janeiro, RJ, Brasil
Telephone: [phone]
FAX: [phone]

CANADA

ANRITSU INSTRUMENTS LTD.
700 Silver Seven Road, Suite 120
Kanata, Ontario K2V 1C3
Telephone: [phone]
FAX: [phone]

CHINA

ANRITSU ELECTRONICS (SHANGHAI) CO. LTD.
2F, Rm B, 52 Section Factory Building
No. 516 Fu Te Rd (N)
Shanghai 200131 P.R. China
Telephone:[phone]
FAX: [phone]

FRANCE

ANRITSU S.A
9 Avenue du Quebec
Zone de Courtaboeuf
91951 Les Ulis Cedex
Telephone: [phone]
FAX: [phone]

GERMANY

ANRITSU GmbH
Grafenberger Allee 54-56
D-40237 Dusseldorf, Germany
Telephone: [phone]
FAX: [phone]

INDIA

MEERA AGENCIES PVT. LTD.
23 Community Centre
Zamroodpur, Kailash Colony Extension,
New Delhi, India 110 048
Phone: [phone]
FAX : [phone]

ISRAEL

TECH-CENT, LTD.
4 Raul Valenberg St
Tel-Aviv 69719
Telephone: [phone]
FAX: [phone]

ITALY

ANRITSU Sp.A
Roma Office
Via E. Vittorini, 129
00144 Roma EUR
Telephone: [phone]
FAX: [phone]

KOREA

ANRITSU CORPORATION LTD.
Head Office:
14F, Hyunjuk Building 832-41
Yeoksam-Dong, Kangnam-Ku
Seoul 135-080, South Korea
Telephone: [phone]
FAX: [phone]

Service Center:
8F Hyunjuk Building
832-41, Yeoksam Dong
Kangnam-Gu
Seoul, South Korea 135-080
Telephone: [phone]
FAX: [phone]

JAPAN

ANRITSU CUSTOMER SERVICE LTD.
1800 Onna Atsugi-shi
Kanagawa-Prf. 243 Japan
Telephone: [phone]
FAX: [phone]

SINGAPORE

ANRITSU (SINGAPORE) PTE LTD.
10, Hoe Chiang Road
#07-01/02 Keppel Towers
Singapore 089315
Telephone: [phone]
FAX: [phone]

SOUTH AFRICA

ETECSA
12 Surrey Square Office Park
330 Surrey Avenue
Ferndale, Randburt, 2194
South Africa
Telephone: [phone]
FAX: [phone]

SWEDEN

ANRITSU AB
Botivid Center
Fittja Backe 13A
145 84 Stockholmn
Telephone: [phone]
FAX: [phone]

TAIWAN

ANRITSU CO., INC.
7F, No. 316, Section 1
NeiHu Road
Taipei, Taiwan, R.O.C.
Telephone: [phone]
FAX: [phone]

UNITED KINGDOM

ANRITSU LTD.
200 Capability Green
Luton, Bedfordshire
LU1 3LU, England
Telephone: [phone]
FAX: [phone]

1-18 690XXB/691XXB MM

Chapter 2
Functional Description

Table of Contents

2-1 INTRODUCTION
2-2 690XXB/691XXB MAJOR SUBSYSTEMS

Digital Control
Front Panel

Frequency Synthesis...............2-4

Analog Instruction................2-5

YIG, SDM, SQM Driver .............2-5

ALC/Modulation .................2-8

RF Deck.....................2-8

Power Supply ..................2-8

Inputs/Outputs .................2-8

Motherboard/Interconnections ..........2-9

2-3 FREQUENCY SYNTHESIS .............2-9

Phase Lock Loops ................2-9

Overall Operation
RF Outputs 0.00001 to 65 GHz
Frequency Modulation (691XXB only)
Analog Sweep Mode (691XXB only)
Step Sweep Mode

...................

......

..................

...................

...............

.........

......

.......

................

2-3
2-3

2-3
2-4

2-10
2-13
2-14
2-14
2-15

2-4 ALC AND MODULATION

ALC Loop Operation
Amplitude Modulation (691XXB only)
Square Wave Modulation (691XXB only)

2-5 RF DECK ASSEMBLIES

RF Deck Configurations
YIG-tuned Oscillator
Power Level Control and Modulation
RF Signal Filtering

0.01 to 2 GHz Down Converter

0.01 to 2.2 GHz Digital Down Converter

..............

..............

...............

..............

......

....

..............

............

......

.........

....

2-15
2-15

2-18
2-18

2-19
2-19

2-20
2-20
2-25
2-26
2-27

Table of Contents (Continued)

Switched Doubler Module
Source Quadrupler Module
Power Level Detection/ALC Loop
Step Attenuators

................

............

...........

........

2-28
2-29
2-30
2-31