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Agilent Technologies. Inc www agilent corn
24001 E Mission
Liberty take, WA 99019
. .
, .'..*:*.. . Ag ilent Technologies
:>:<:.
. : . Innovating the HP Way
June 8,2000
Dear Customer,
As of November 1,1999, four of Hewlett-Packard's businesses, test and measurement,
semiconductor products, health care solutions, and chemical analysis became a new company,
Agilent Technologies. Now, many of your Hewlett-Packardproducts and services are in the care of
Agilent Technologies.
At Agilent Technologies, we are working diligently to make this transition as smooth as possible for
you. However, as a result of this transition, the products and related documentation contained in this
shipment may be labeled with either the Hewlett-Packardname and logo, the Agilent Technologies
name and logo, or a combination of both. Information in this package may refer to Hewlett-Packard
(HP), but applies to your Agilent Technologies product. Hewlett-Packardand Agilent branded
products with the same model number are interchangeable.
Whatever logo you see, the information, products, and services come from the same reliable source.
If you have questions about Agilent Technologies products and services, please visit our website at
http://www.aailent.com.
Sincerely,
Rebranding Team
HP 8904A
MULTIFUNCTION SYNTHESIZER
(Including Options 001, 002, 003, 004, 005 and 006)
Operation and Calibration Manual
SERIAL NUMBERS
This manual applies directly to instruments with
serial numbers prefixed
2712A and all MAJOR changes that apply to your instrument.
rev.01JUL91
For additional important information about serial
numbers, refer to "INSTRUMENTS COVERED BY
THIS MANUAL"in Section 1.
Third Edition
This material may be reproduced by or for the U.S.
Government pursuant to the Copyright License un-
der the clause at DFARS 52.227-7013(APR 1988).
Copyright@ HEWLETT-PACKARD COMPANY 1989
EAST 24001 MISSION AVENUE, TAF C-34, SPOKANE, WASHINGTON, U.S.A. 99220
Operation and Calibration Manual HP Part 08904-90007
Other Documents Availiable:
Operation and Application Guide HP Part 08904-90006
Service Manual HP Part 08904-90008
Microfiche OpetationKalibration Manual HP Part 08904-90019 Printed in U.S.A. : September 1992
HEWLETT
PACKARD
1 Regulatory Information
(Updated March 1999)
1
Regulatory Information (Updated March 1999)
Safety Considerations
GENERAL
This product and related documentation must be reviewed for familiarization with safety
markings and instructions before operation.
This product has been designed and tested in accordance with IEC Publication 1010,
"Safety Requirements for Electronic Measuring Apparatus," and has been supplied in a
safe condition. This instruction documentation contains information and warnings which
must be followed by the user to ensure safe operation and to maintain the product in a safe
condition.
SAFETY EARTH GROUND
A uninterruptible safety earth ground must be provided from the main power source to the
product input wiring terminals, power cord, or supplied power cord set.
SAFETY SYMBOLS
A Indicates instrument damage can occur if indicated operating limits are exceeded.
A Indicates hazardous voltages.
& Indicates earth (ground) terminal
WARNING A WARNING note denotes a hazard. It calls attention to a procedure,
practice, or the like, which, if not correctly performed or adhered to,
could result in personal injury. Do not proceed beyond a WARNING
sign until the indicated conditions are fully understood and met.
CAUTION A CAUTION note denotes a hazard. It calls attention to an operation
procedure, practice, or the like, which, if not correctly performed or adhered
to, could result in damage to or destruction of part or all of the product. Do
not proceed beyond an CAUTION note until the indicated conditions are fully
understood and met.
2 Chapter 1
Regulatory Information(Updated March 1999)
Safety Considerations for this Instrument
~
WARNING This product is a Safety Class I instrument (provided with a
protective earthing ground incorporated in the power cord). The
mains plug shall only be inserted in a socket outlet provided with a
protective earth contact. Any interruption of the protective
conductor inside or outside of the product is likely to make the
product dangerous. Intentional interruption is prohibited.
Whenever it is likely that the protection has been impaired, the
instrument must be made inoperative and be secured against any
unintended operation.
If this instrument is to be energized via an auto transformer (for
voltage reduction), make sure the common terminal is connected to
the earth terminal of the power source.
If this product is not used as specified, the protection provided by
the equipment could be impaired. This product must be used in a
normal condition (in which all means for protection are intact) only.
No operator serviceable parts in this product. Refer servicing to
qualified personnel. To prevent electrical shock, do not remove
covers.
Servicing instructions are for use by qualified personnel only. To
avoid electrical shock, do not perform any servicing unless you are
qualified to do so.
The opening of covers or removal of parts is likely to expose
dangerous voltages. Disconnect the product from all voltage sources
while it is being opened.
The power cord is connected to internal capacitors that my remain
live for 5 seconds after disconnectingthe plug from its power supply.
For Continued protection against fire hazard, replace the line fuse@)
only with 250 V fuse(s)or the same current rating and type (for
example, normal blow or time delay). Do not use repaired fuses or
short circuited fuseholders.
Always use the three-prong ac power cord supplied with this
product. Failure to ensure adequate earth grounding by not using
this cord may cause product damage.
This product is designed for use in Installation Category I1 and
Pollution Degree 2 per ZEC 1010 and ZEC 664 respectively. FOR
INDOOR USE ONLY.
This product has autoranging line voltage input, be sure the supply
voltage is within the specified range.
Chapter 1 3
Regulatory Information (Updated March 1999)
To prevent electrical shock, disconnect instrument from mains (line)
before cleaning. Use a dry cloth or one slightly dampened with water
to clean the external case parts. Do not attempt to clean internally.
Ventilation Requirements: When installing the product in a cabinet,
the convection into and out of the product must not be restricted.
The ambient temperature (outside the cabinet) must be less than the
maximum operating temperature of the product by 4" C for every 100
watts dissipated in the cabinet. If the total power dissipated in the
cabinet is greater than 800 watts, then forced convection must be
used.
Product Markings
CE - the CE mark is a registered trademark of the European Community. A CE mark
accompanied by a year indicated the year the design was proven.
CSA - the CSA mark is a registered trademark of the Canadian Standards Association.
4 Chapter 1
CERTIFICATION
Hewlett-Packard Company certifies thut this product met its published specifications a t 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 International Standards Organization members.
WARRANTY
This Hewlett-Packard instrument 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.
For warranty service or repair, this product must be returned to a service facility designated by HP. Buyer shall
prepay shipping charges to H P and H P shall pay shipping charges to return the product to Buyer. However, Buyer
shall pay a l shipping charges, duties, and taxes for products returned to H P from another country.
l
H P warrants that its software and firmware designated by H P for use with an instrument will execute its
programming instructions when properly installed on that instrument. H P does not warrant that the operation
of the instrument, or software, or firmware will be uninterrupted or error free.
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. H P SPECIFICALLYDISCLAIMS THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 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.
SAFETY CONSIDERATIONS
GENERAL
This product and related documentation must be re-
viewed for familiarization with safety markings and
A n y interruption of the protective (ground-
instructions before operation.
ing) conductor (inside or outside the instru-
This product is a Safety Class I instrument (provided ment) or disconnecting the protective earth
with a protective earth terminal). terminal will came a potential shock hazard
that could result in personal injury. (Ground-
BEFORE APPLYING POWER ing one conductor of a two conductor outlet
Verify that the product is set to match the available is not sufficient protection).
line voltage and the correct fuse is installed.
Whenever it is likely that the protection has
SAFETY EARTH GROUND been impaired, the instrument must be made
An uninterruptible safety earth ground must be pro- inoperative and be secured against any unin-
vided from the main power source to the product input tended operation.
wiring terminals, power cord, or supplied power cord
set. I f this instrument is to be energized via an
autotransformer (for voltage reduction) make
SAFETY SYMBOLS sure the common terminal is connected to the
A Instruction manual symbol: the product will
be marked with t h i s symbol when i t
is necessary for the user to refer to the instruction
earth terminal of the power source.
Servicing instructions are for use by service-
manual (refer to Table of Contents). trained personnel only. To avoid dangerous
f
electric shock, do not perform any servicing
unless qualified to do so.
Indicates hazardous voltages.
Adjustments described in the manual are per-
Indicates earth (ground) terminal.
formed with power supplied to the instrument
while protective covers are removed. Energy
VI The WARNING sign denotes a
hazard. It calls attention t o a
available at many points may, if contacted, re-
sult in personal injury.
procedure, practice, or the like, which, if not correctly
performed or adhered to, could result in personal in-
jury. Do not proceed beyond a WARNING sign until Capacitors inside the instrument may still be
the indicated conditions are fully understood and met. charged even if the instrument has been dis-
connected from its source of supply.
The CAUTION sign denotes a haz-
a r d . I t calls attention t o an For continued protection against fire hazard,
operating procedure, practice, or the like, which, if not replace the line fuse(s) only with 250V fuse(s)
correctly performed or adhered to, could result in dam- of the same current rating and type (for exam-
age to or destruction of part or all of the product. Do ple, normal blow, time delay, etc.). Do not use
not proceed beyond a CAUTION sign until the indi- repaired f u s e s o r s h o r t c i r c u i t e d
cated conditions are fully understood and met. fuseholders.
ATTENTION
Static Sensitive
Devices
This instrument was constructed in a n E S D (electro-static dis-
charge) protected environment. This is because most of the semi-
conductor devices used in this instrument are susceptible to damage
by static discharge.
Depending on the magnitude of the charge, device substrates can
be punctured or destroyed by contact or mere proximity of a static
charge. The results can c a w e degradation of device performance,
early failure, or immediate destruction.
These charges are generated in numerous ways such as simple con-
tact, separation of materials, and normal motions of persons
working with static sensitive devices.
W h e n handling or servicing equipment containing static sensitive
devices, adequate precautions must be taken to prevent device dam-
age or destruction.
Only those who are thoroughly familiar with industry accepted
techniques for handling static sensitive devices should attempt to
service circuitry with these devices.
I n all instances, measures must be taken to prevent static charge
build-up on work surfaces and persons handling the devices.
For further information on E S D precautions, refer to "SPECIAL
HANDLING CONSIDERATIONS FOR S T A T I C S E N S I T I V E
DEVICES" in Section VIII Service Section.
Model 8904A Volume 1 Contents
VOLUME 1 CONTENTS
Section 1 .General Information
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
.
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
.
A Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 1-2
1.
3
1-7
Mechanical and Document Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Electrical Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Option 001: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Option002: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Option 003: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Option 005: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Option006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Hewlett-Packard Interface Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Selecting the HP-IB Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Accessories Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Documentation Updating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
A Description of the Manual Update Packet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Signing Up for the Documentation Update Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Section 2 .Installation
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1
.
Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
.
Preparation For Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1
.
Line Voltage Selection and Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2
.
HP-IB Address Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2
.
Interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4
.
Mating Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4
.
Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Bench Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Storage And Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
rev.OlNOV89
Volume 1 Contents Model 8904A
Section 3 .Operation
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
.
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
.
Functional Block Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3
.
How to Create and Output a Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -3-4
Instrument Functions and Operating Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Standard Instrument: Creating a Simple Signal From Digital Data . . . . . . . . . . . . . . . . . . . . . 3
6
.
How the H P 8904A Generates a Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
7
.
Operating Considerations: All Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
7
.
Abbreviated Channel A Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
8
.
Option 001 .Three More Channels, Summation, Modulation, and Sequencing . . . . . . . . . . . . . . 3 9
.
Expanded Capabilities for Option 001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C-1
Operating Considerations: Option 001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Abbreviated Specifications: Option 001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Option 002 .A Second Channel and Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Operating Considerations: Option 002 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Abbreviated Specifications: Option 002 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Option 003 .Frequency, Amplitude, and Phase Hopping . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Operating Considerations: Option 003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Abbreviated Specifications: Option 003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
D i ~ t a l P. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
o 3-15
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Connector hnctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Remote Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Programming Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
HP-IB Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
HP-IB Code Listings for the H P 8904A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Status Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31
Using the Status Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31
Error Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
Error Codes and Help Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34
Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Special 0: Last State Recalled on Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Special 1: Disable Automatic Phase Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Special 2: Disable Beeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Special 3: Reverse Modulating Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Special 4: Disable Output Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
Special 5: Floating Outputs on Power Up: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
Special 6: Enable Synchronous mode: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
Special 7: Configure as Master Controller: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
Operating Technical Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
Waveform Jitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
Fine Amplitude Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
Phase Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
Phase Continuous Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
MenuMap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
Selecting Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
Menu Changes When Using HP-IB Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
rev.01NOV89
Model 8904A Volume 1 Contents
Hop RAM Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Cl.
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C-1
Detailed Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Cl.
HP-IB Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C5
.
FM Stereo Composite Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C-7
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C-7
Detailed Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C7
.
HP-IB Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C-10
Multi-Instrument Phase Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A.l
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A2
.
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A-2
Detailed Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A-3
HP-E3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A7
.
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A8
.
High Power Balanced Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3B.l
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3B.l
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3B-1
Operating Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3B-1
HP 8904A Option 006 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3B-2
Expanded Capabilities for Option 001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C-1
Section 4 .Performance Tests
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.
1
Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.
1
Performance Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
.
Calibration Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
.
Basic hnctional Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
.
Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
.
Performance Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
.
Calibration Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
.
Basic Functional Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
.
Performance Test 1 - AC and DC Amplitude Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
.
Performance Test 2 - AC Amplitude Flatness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
.
Performance Test 3 - Spectral Purity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Performance Test 4 - Phase Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Performance Test 5 - Channel-to-Channel Phase Accuracy (Option 001 . . . . . . . . . . . . . . . . . . 4-17
Performance Test 6 - Output l-to-Output 2 Phase Accuracy (Option 002) . . . . . . . . . . . . . . . . . 4-20
Performance Test 7 - Tone Sequence Timing Accuracy (Option 001) . . . . . . . . . . . . . . . . . . . . 4-22
Performance Test 8 - DTMF Sequence Timing Accuracy (Option 001) . . . . . . . . . . . . . . . . . . . 4-26
Performance Test 9 - Digital Sequence Period Accuracy (Option 001) . . . . . . . . . . . . . . . . . . . 4-30
rev.01 NOV89
Volume 1 Contents Model 8904A
Section 5 .Adjustments
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1
Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2
Post-Repair Tests, Adjustments, and Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5
.
Adjustment 1 - Output Gain and Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Adjustment 2 - Output Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.6
Adjustment 3 - Output Gain (Option 006) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.7
Adjustment 4 - Sharp Cutoff Low-Pass Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8
Adjustment 5 - Sine X/X Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Adjustment 6 - Display Backlighting and Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Adjustment 7 - Phase Synchronization (Option 005) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
rev.OlNOV89
Model 8904A General Information
Section 1
GENERAL INFORMATION
1-1. INTRODUCTION
This manual contains information required to install, operate, test, and adjust the Hewlett-Packard
Model 8904A Multifunction Synthesizer. The HP 8904A will generally be referred to as the
Multifunction Synthesizer throughout this manual. This manual documents standard Multifunction
Synthesizers and Multifunction Synthesizers supplied with four internal channels, Option 001, a
second output port, Option 002, Hop Ram capabilities, Option 003, and rear panel outputs, Option 004.
Operating and reference information for other options is provided in the operating supplements at
the end of section 3.
This section of the manual describes the instruments documented by this manual; it includes an
instrument description, options, accessories, specifications, and other basic information. The other
sections contain the following information:
Section 2, Installation: provides information about initial inspection, preparation for use, HP-IB
address selection for remote operation, and storage and shipment.
Section 3, Operation: provides information about panel features and includes operator's checks,
operating instructions for both local and remote operation, and operator's maintenance information.
Operating information for options after Option 004 is provided in the form of separate supplements.
Section 4, Performance Tests: provides the information required to check performance of the
instrument against the critical specifications listed in table 1-1.
Section 5, Adjustments: provides the information required to properly adjust the instrument.
One copy of the operating information is supplied with the Multifunction Synthesizer. An additional
copy of the Operating Manual may be ordered separately through your nearest Hewlett-Packard office.
Its part number is listed on the title page of this manual.
Also listed on the title page of this manual, below the manual part number, is a "Microfiche" part
number. This number may be used to order 100 x 150 millimeter (4- x 6-inch) microfilm transparencies
of this manual. Each microfiche contains up to 96 photo-duplicates of the manual's pages. The
microfiche package also includes the latest Manual Updates information.
rev.OlNOV89 1-1
General Information Model 8904A
1-2. SAFETY CONSIDERATIONS
This product is a Safety Class I instrument, that is, one provided with a protective earth terminal. The
Multifunction Synthesizer and all related documentation must be reviewed for familiarization with
safety markings and instructions before operation. Refer to the Safety Considerations pages found at
the beginning of this manual for a summary of the safety information. Safety information pertinent
to the task at hand, that is, installation, operation, performance testing, and adjustments, is found
throughout this manual.
1-3. DESCRIPTION
The HP 8904A is a Multifunction Frequency Synthesizer that produces six fundamental waveforms
to create complex signals. The waveforms available are: dc, sine wave, ramp (sawtooth), triangle,
square wave, and white (Gaussian) noise. The standard instrument is equipped with a single internal
channel and one output. The addition of available options can provide: a second signal output port,
three additional internal channels with modulation capabilities, and the ability to fast-hop between
different phase, frequency, and amplitude settings. Multi-instrument synchronization and high level
balanced output are also available.
A description of the available options is given in paragraphs 1-6 and 1-7.
1-2 reu.OlN0 V89
Model 8904A General Information
1-4. SPECIFICATIONS
n b l e 1-1. HP 8904A Specifications (1 of 4)
HP 8904A SPECIFICATIONS Supplementa 1 Characteristics
Specifications describe the instruments' warranted performance (5oR output Number of channels: O n e standard; two with Option 002;
only unless noted) for automatic operation. Mathematically derived charac- four with Option 002.
teristics denote parameters which can be derived from specifications and
knowledge of the digital generation methods used in the HP 8904A. Sup- Standard waveforms: Sine, square, triangle, ramp, de, and
plemental characteristics are intended to provide information useful in Gaussian white noise.
applying the instrument by giving typical, but not warranted performance AC amplitude accuracy:
parameters. These are noted as 'typical " 'normal", or 'approximate".
, Typically: Square wave: <3% at 20 kHz.
Triangle : <4%. at 20 kHz.
Gaussian noise: <5%.
Frequency Ramp: <7% at 20 kHz.
Range: Sine wave: 0 Hz to 600 kHz. Square wave risetime/falltime: Typically <2.5 ps.
Square, triangle, ramp: 0 Hz to 50 kHz. Spurious (typically the higher of):
Resolution: 0.1 Hz. -50 dBc or 500 p V , 100 kHz to 600 kHz, 20 M H z BW.
Accuracy: Internal 10 MHz timebase: 250 ppm. Noise crest factor: fypically >4.4.
External 10 MHz timebase: Same as accuracy and Switching speed (via HP-IB): Typically <25 ms.
stability of external timebase.
AC amplitude (sine wave)
Range: 0 to 105 into a 5052 load.
Resolution: 3% &its.
Accuracy (amplitude >40 mVpp into 5 Q : 0)
1'30, 0.1 HZ to 100 kHz. ."
3%, 100 kHz to 600 kHz.
Flatness (amplitude >630 into 50Q): 2 -70 dB
+
I
+O.lYo (=0.009 dB), 0.1 HZ to 100 kHz. n
21.0% ( r 0 . 0 9 dB), 100 kHz to 600 kHz. X
F -80dB
Spectral Purity (sine wave) 10Hz 100Hz 1 kHz 10 kHz 100kHz
Frequency
THD+N (including spurs, amplitude >50 mV rms into 5052):
-63 dBc I~TLS(0.07%), 20 HZ to 7.5 kHz, 30 kHz BW.
-63 dBc I~TLS(0.07%), 7.5 kHz to 20 kHz, 80 kHz BW. Typical Level Flatness ( I kHz ref.) at 5Vp-p into a 50R load.
-55 dBc I~TLS(0.18%), 20 kHz to 100 kHz, 750 ~ H BW.
Z
+0.1 dB I I I 1
Phase (sine wave)
Range: 0 to 359.9O.
Resolution: 0.lo or 0.001 radians.
Increment accuracy (Relative to Oo for a fixed frequency):
20.05O, 0.1 Hz to 100 kHz.
LL
i
-0.1 dB 100kHz lMHz
DC amplitude 100Hz lkHz 10 kHz
Range: 0 to 21OV open circuit. Frequency
Resolution: 3% digits.
Accuracy: 520 mV or r2.1%, whichever is greater. Typical SSB phase noise a t 500 kHz.
Gaussian Noise
Spectral Characteristic: Equal energy per unit bandwidth
' 0 7 -
("white"). -80
Amplitude range: 0 to lo\, into a 5052 load.'
Resolution: 3% digits. -90
2 -100
Mathematically Derived Characteristics \
V
% -110
Noise flatness (amplitude >lo0 mVp-p into 55)
02:
20.5 dB, 0.1 Hz to 100 kHz. -120
2 1.0 dB. 100 kHz to 600 kHz.
-130
1 Peak Voltage
Noise Voltage / fi = (Crest Factor) X 2 X h
-
d -1401 I I I I I
1Hz 10Hz 100Hz lkHz 10kHz 100kHz
VPk Offset Frequency
vmmi
%
(4.4) (2) x
x
rev.OlNOV89 1-3
General Information Model 8904A
Ziable 1-1. HP 8904A Specifiatwns (2 of 4)
OPTION 001 SPECIFICATIONS Supplemental Characteristics
(50Q outputs only) VOR bearing accuracy: Typically =0.059
AM accuracy (at a 1 kHz rate and 600 kHz carrier):
Modulation Typically Modulation for channel A ONLY, and specified for FM accuracy (at a 1 kHz rate, 20 kHz deviation, and
sinewave carrier and modulation. Internal channels B, C, 600 kHz carrier): Typically < 2 0.2%of setting.
and D can be used to either collectively modulate channel Pulse modulation level accuracy: Typically 5% up to 20 kHz
A with one modulation type, or can provide simultaneous pulse rate.
modulation of channel A with any of the available modula- DSBSC carrier suppression: Typically >72 dB.
tion types. External modulation is NOT possible. Intermodulation (two equal signal summed into one output):
Amplitude Modulation (with Option 001) Typically: <-70 dBc, for frequencies up to 100 kHz.
<-60 dBc, for frequencies 100 to 600 kHz.
Rate: 0 Hz to 600 kHz. Specifications for level accuracy, modulation accuracy, and
Depth range: 0% to 100% of carrier amplitude. spectral purity are all referenced to the peak of the composite
Resolution: 0.1% of carrier amplitude. signal less 3 dB. When signals are summed the specification for
Frequency Modulation (with Option 001) each individual signal is degraded by its amplitude relative to the
Rate: 0 Hz to 600 kHz. peak of the composite signal.
Deviation range: 0 Hz up to 600 kHz, however FM Stereo Mode (with Option 001)
F, + Fdeviation kHz.
<=600 Test signal modes: Left = Right, Left = -Right, Left only, and
Resolution: 0.1 Hz or 3% digits, whichever is less. Right only.
Test tone frequency range: 20 Hz to 15 kHz.
Phase Modulation (with Option 001) Composite signal level: up to 10 Vp-pinto 50Q.
Rate: 0 Hz to 600 kHz. Pilot tone level: 0% to 100% of composite level.
Range: Oo up to 179.9O/channel, however Pilot tone level resolution: 0.1% of composite level.
Pilot tone frequency range: 0.1 Hz to 600 kHz
(default frequency 19 kHz).
Pilot tone phase adjustment range: 0.0 to 359.9O
Resolution: 0.lo or 0.001 radians. Subcarrier frequency range: 0.1 Hz to 600 kHz
Pulse or DSBSC Modulation (with Option 001) (default frequency 38 kHz).
Preemphasis: 25 psec, 50 psec, and 75 psec.
Rate: 0 Hz to 50 kHz (up 600 kHz for DSBSC).
Summation (with Option 001) Supplemental Characteristics
Two, three, or four channels may be summed into a single FM stereo multiplex separation:
output. Two or three channels may be summed for modula- L-R: typically > 65 dB, audio frequency 20 H z to 15 kHz.
tion of channel A. All combinations of channels are accept- M-S: typically > 70 dB, audio frequency 20 Hz to 15 k z
H.
able, EXCEPT FOR: { A+C and B+D ] or { A+D and B+C ] Multiplex subcarrier suppression: typically > 70 dB
.
at the same time.
Tone Sequence (with Option 001)
Channel-to-channel phase accuracy (equal amplitude, sine
wave signals summed into one output): +0.lo or 30 ns , Number of different frequencies: 16 user definable tones
each with an individual on time and off time.
0.1 Hz to 100 kHz, whichever is greater.
On-time duration: 0 ms, 0.80 ms to 655.35 ms.
Off-time duration: 0 ms, 0.80 ms to 655.35 ms.
(Zero off time zero on time not allowed)
Mathematically Derived Characteristics Timing resolution: 0.01 ms (10 ps).
AM accuracy (the higher of): 20.024% AM or 20.20% of Timing accuracy: 20.02 ms (220 rs).
setting, up to 20 kHz modulation rate and 100 kHz carrier, Sequence length 750 tones, user definable from front panel
1%to 99% depth. or HP-IB programmable.
FM accuracy (the higher 00: 20.1 Hz or 20.28% of setting, DTMF sequence (with Option 001)
up to 20 kHz modulation rate, 20 kHz deviahon, and where Number of tone pairs: 16 standard DTMF tone pairs (0-9,
Fcarrier <=lo0 kHz.
+Fdeviation A-D, #, * ). Frequencies per Bell Technical Reference
4M accuracy (the higher of): +0.lo or 20.28% of setting, up Publication 48005.
to 20 kHz modulation rate, where: On-time duration: 0 ms, 1.00 to 655.35 ms.
Off-time duration: 0 ms, 1.00 to 655.35 ms.
(Zero off time AND zero on time not allowed)
Timing resolution: 0.01 ms (10 rs).
Timing accuracy: 2 1ms.
Sequence length 750 DTMF tones, user definable from front
DSBSC peak envelope accuracy: Same as amplitude accuracy, panel or HP-IB programmable.
up to 20 kHz modulation rate.
Phase accuracy when one channel is used to modulate
channel A (sine wave): 20.15O or 30 ns, whichever is greater,
0.1 Hz to 100 kHz carrier frequency.
1-4 rev.01NO V89
Model 8904A General Information
mble 1-1. HP 8904A Specifications (3 of 4)
Digital Sequence (with Option 001) OPTION 005 SPECIFICATIONS
User definable: (5052 outputs only)
On level (=lOV open circuit),
Unit to unit phase accuracy: Additional 30 nsec error, 0.1 Hz
Off level ( 2 1OV open circuit), and period.
Sequence entry: Binary, octal, or hexidecimal. to 100 kHz. (Total phase error between units is then the
Sequence length: Up to 3000 bits. greater of 20.1 degree or 60 nsec, 0.1 Hz to 100 kHz.)
Period duration: 0.10 ms to 655.35 ms. Maximum number of synchronized units: 8 units using
Period resolution: 0.01 ms (10 ps). low-loss power splitters (for a total of 16 phase related
Period accuracy: 20.02 ms (= 20 ps). outputs if all units have Option 002).
Control modes (applies to tone, DTMF and digital sequence Recommended power splitters:
modes): Manual sequence (allows stepping through sequence), 5 4 units synchronized: Mini-Circuits model ZSC-4-3 or
single sequence, and continuously repeat sequence. equivalent.
Sequence can also be triggered by external TTL pulse. 1 8 units synchronized: Mini-Circuits model ZFSC-8-1 or
equivalent.
Hop Ram Sequence (with Option 001)
Number of different States: 16 user definable states each with Supplemental Characteristics
an amplitude, frequency, and phase value. Unit t o u n i t phase accuracy: typically < 15 nsec additional
Waveforms: Sine, square, ramp, triangle, dc, and white error, 0.1 Hz to 100 kHz. r o t a 1 typical phase error between units
Gaussian noise. is then the greater of 20.1 degree or 30 nsec, 0.1 H to 100 kHz.)
z
Sequence entry: Binary, octal, or hexidecimal.
Sequence length up to 3000 tones in binary mode (two states OPTION 006 SPECIFICATIONS
used), or up to 750 tones in hex mode (all 16 states used). (Sine wave only)
Sequence clock frequency range: 0.1 Hz to 10 kHz.
Sequence clock frequency resolution: 0.1 Hz. All specifications for the standard 50Q HP 8904A are degraded
Sequence burst range: 1 repetition up to 127. by the accuracy, flatness, and distortion specifications of the
Control modes: Manual sequence (allows stepping through Option 006, 600Q transformer coupled output. Because the
sequence), burst sequence (1 to 127), and continuously transformer output was designed for passing sinewaves only,
repeat sequence. Sequence can be triggered by external TTL all specifications apply to that waveform. The Option 006
pulse. output will not pass digital sequences available with Option
001. In addition, phase accuracy is degraded and therefore not
OPTION 002 SPECIFICATIONS specified for Option 006.
Output type: fully floating/balanced transformer coupled output.
(5052 outputs only) Usable output frequency range: 30 Hz to 200 kHz.
Output 1 to Output 2 phase accuracy (sine waves at the
same frequency): k0.lo or 30 ns, 0.1 H z to ZOO kHz, AC amplitude (sine wave only)
whichever is greater. Range: Open circuit: 0 to 20 Vrms.
600Q load: 0 to 10 Vrms.
Supplemental Characteristics 15052 load: 0 to 4 Vrms.
O u t p u t 1 to O u t p u t 2 cross-talk (the higher OD:Typically: 50Q load: 0 to 1.5 Vrms.
-100 dB or 20 IJY-,,0.1 H z to 20 kHz.