HP 16530A User manual

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HP 16530A/16531A
DIGITIZING OSCILLOSCOPE MODULE
Service Manual
FJ/0"1 HEWLETT
~~PACKARD

rf/pta HEWLETT
a!~ PACKARO
SERVICE MANUAL
HP 16531A 400 Msamplejs Digitizing
Oscilloscope Acquisition Card
AND
HP 16530A 400 Msamplejs Digitizing
Oscilloscope Timebase Card
@ COPYRIGHT HEWLETT-PACKARD COMPANY/COLORADO DIVISION 1987
1900 GARDEN OF THE GODS ROAD, COLORADO SPRINGS, COLORADO U.S.A.
Manual Part No. 16530-90901
Microfiche Part No. 16530-90801
ALL RIGHTS RESERVED
PRINTED: SEPTEMBER 1987

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 International 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.
For warranty service or repair, this product must
be returned to a service facility designated by HP.
Buyer shall prepay shipping charges to
HP and HP shall pay shipping charges to return the
product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for products
returned to
HP from another country.
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.
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 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 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 tf1is manual.
CWA584
------ --------~~--~~-~~-

SAFETY CONSIDERATIONS
GENERAL • This Is a Safety Class I Instrument (provided
with terminal for protective earthing).
OPERATION • BEFORE APPLYING POWER verify that the
power transformer primary
is matched to the available line
voltage, the correct fuse is installed, and Safety Precautions
are taken (see the following warnings). in addition, note the
instrument's external markings which are described under
"Safety Symbols."
IWARNING I
o Servicing instructions are for use by service-trained
personnel. To avoid dangerous electric shock, do not
perform any servicing unless qualified to do so.
o BEFORE SWITCHING
ON THE INSTRUMENT, the
protective earth terminal
of the instrument must be
connected to the protective conductor of the (mains)
powercord. The mains plug shall only
be inserted in a
socket outlet provided with a protective earth contact. The
protective action must not be negated
by the use of an
extension cord (power cable) without a protective
conductor (grounding). Grounding one conductor
of a two-
conductor outlet is not sufficient protection.
o 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.
o
Any interruption of the protective (grounding) conductor
(Inside or outside the instrument) or disconnecting the
protective earth terminal will cause a potential shock
hazard that could result in personal injury.
o Whenever
it is likely that the protection has been impaired,
the instrument must be made inoperative and be secured
against any unintended operation.
o Only fuses with the required rated current, voltage, and
specified type (normal blow, time delay, etc.) should be
used. Do
not use repaired fuses or short circuited
fuseholders. To do so could cause a shock
or fire hazard.
o Do not operate the instrument in the presence
of flammable
gasses
or fumes. Operation of any electrical instrument in
such an environment constitutes a definite safety hazard.
o Do not Install substitute parts
or perform any unauthorized
modification to the instrument.
o Adjustments described
In the manual 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.
o Any adjustment, maintenance, and repair
of the opened
Instrument under voltage 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 Involved.
o Capacitors Inside the instrument may still be charged even
If the Instrument has been disconnected from Its source of
supply.
SAFETY SYMBOLS
Instruction manual symbol. The product will be
marked with this symbol when It is necessary for
the user to refer to the Instruction manual in order
to protect against damage to the product.
Indicates hazardous voltages.
_J_ Earth terminal (sometimes used in manual to
indicate circuit common connected to grounded
chassis).
IWARNING I The WARNING sign 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.
r:::·:;;::::::::1 The CAUTION sign denotes a hazard. It
~J calls attention to an operatin~ 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 a CAUTION sign until the Indicated conditions are
fully understood or met.
SC10984

16530/31 A- Table of Contents
TABLE OF CONTENTS
SECTION
PAGE
I. GENERAL INFORMATION ........................................................................ 1-1
1-1. Introduction ........................................................................... 1-1
1-2. Modules Covered By Manual ......................................................... 1-1
1-3. Safety Requirements .................................................................. 1-1
1-4. Product Description ................................................................... 1-2
1-5. Accessories Supplied
................................................................. 1-2
1-6. Accessories Available ................................................................. 1-2
1-7. Specifications ......................................................................... 1-2
1-8. Operating Characteristics
............................................................. 1-2
1-9. Recommended Test Equipment ...................................................... 1-2
II. INSTALLATION ................................................................................... 2-1
2-1. Introduction ........................................................................... 2-1
2-2. Initial Inspection ....................................................................... 2-1
2-3. Preparation For Use .................................................................. 2-1
2-4. Power Requirements ................................................................. 2-1
2-5. Installation ............................................................................. 2-1
2-6. Module Installation .................................................................... 2-2
2-7. Adding Acquisition Cards
............................................................. 2-5
2-8. Operating Environment
............................................................... 2-8
2-9. Storage
................................................................................ 2-8
2-1 0. Packaging ............................................................................ 2-8
2-11. Tagging For Service
.....................•............................................ 2-8
Ill. PERFORMANCE TESTS ......................................................................... 3-1
3-1. Introduction ........................................................................... 3-1
3-2. Recommended Test Equipment ...................................................... 3-1
3-3. Test Record
........................................................................... 3-1
3-4. Performance Test Interval ............................................................ 3-1
3-5. Performance Test Procedures ........................................................ 3-1
3-6. Bandwidth Test ....................................................................... 3-2
3-7. Voltage Measurement Accuracy Test
................................................ 3-6
3-8. Time Interval Measurement Accuracy Test
........................................... 3-9
3-9. Trigger Sensitivity Test .............................................................. 3-12
iv

---
HP 16530/31A-Table of Contents
SECTION PAGE
IV. ADJUSTMENTS .................................................................................. 4-1
4-1. Introduction ........................................................................... 4-1
4-2. Calibration Interval .................................................................... 4-1
4-3. Maintaining Calibration Integrity ...................................................... 4-1
4-4. Safety Requirements .................................................................. 4-1
4-5. Recommended Test Equipment ...................................................... 4-2
4-6. Instrument Warmup ................................................................... 4-2
4-7. Calibration ............................................................................. 4-2
4-8. Vertical Calibration .................................................................... 4-3
4-9. Trigger Level Calibration .............................................................. 4-4
4-10. Delay Calibration ..................................................................... 4-5
4-11. Channel-To-Channel Skew ........................................................... 4-6
4-12. Extender Board Installation ........................................................ 4-13
4-13. Adjustments ........................................................................ 4-16
4-14. Set to Default Values ............................................................... 4-16
4-15. DC Balance Adjustment ............................................................ 4-17
4-16. DC Matching Adjustment .......................................................... 4-19
4-17. Attenuator Compensation Adjustment ............................................. 4-21
4-18. HF Compensation Adjustment ..................................................... 4-23
V. REPLACEABLE PARTS .......................................................................... 5-1
5-1 . Introduction ............................................................................ 5-1
5-2. Abbreviations .......................................................................... 5-1
5-3. Replaceable Parts List ................................................................ 5-1
5-4. Ordering Information .................................................................. 5-1
5-5. Exchange Assemblies ................................................................ 5-1
5-6. Direct Mail Order System ............................................................. 5-2
VI. SERVICE .......................................................................................... 6-1
6-1. Introduction ............................................................................ 6-1
6-2. Safety Requirements .................................................................. 6-1
6-3. Recommended Test Equipment ...................................................... 6-1
6-4. Module Block Diagram and Theory Of Operation ................................... 6-1
6-5. Acquisition Card Theory of Operation ................................................ 6-3
6-6. Timebase Card Theory Of Operation ................................................. 6-4
6-7. Self Tests .............................................................................. 6-5
6-8. Troubleshooting ....................................................................... 6-9
6-9. Card Replacement .................................................................. 6-25
v
------------- ~-~----~-~----~

HP 16530/31A-Table of Contents
LIST OF TABLES
TABLE TITLE PAGE
1-1. HP 16530/31A Specifications ................................................................. 1-3
1-2.
HP 16530/31A Operating Characteristics .................................................... 1-5
1-3. Recommended Test Equipment
.............................................................. 1-10
3-1 . Performance Test Record .................................................................... 3-16
4-1 . Calibration Sequence .......................................................................... 4-2
4-2. Sequence of Adjustments
.................................................................... 4-16
5-1 . Reference Designators and Abbreviations .................................................... 5-3
5-2. Replaceable Parts
............................................................................. 5-4
LIST OF ILLUSTRATIONS
FIGURE TITLE PAGE
2-1 . Endplate Overhang ........................................................................... 2-2
2-2. Configuration Guide
.......................................................................... 2-2
2-3. Cable End
..................................................................................... 2-3
2-4. Cable Position
................................................................................. 2-3
2-5. Installation Summary
......................................................................... 2-4
2-6. Endplate Overhang
........................................................................... 2-4 ,.-.....,
2-7. Endplate Overhang ........................................................................... 2-5
2-8. Configuration Guide
.......................................................................... 2-5
2-9. Cable End
..................................................................................... 2-6
2-10. Cable Position ................................................................................ 2-6
2-11. Endplate Overhang
........................................................................... 2-7
3-1. Bandwidth Test Equipment Hookup
......................................................... 3-2
3-2. Startup Screen
................................................................................ 3-3
3-3. Channel Screen Configuration
............................................................... 3-3
3-4. Trigger Screen Configuration
................................................................. 3-4
3-5. Display Screen Configuration ................................................................. 3-4
3-6. Auto-Meas the vp-p
.......................................................................... 3-5
3-7. Channel Configuration ........................................................................ 3-6
3-8. Trigger Configuration ......................................................................... 3-6
3-9. Display Configuration
......................................................................... 3-7
3-10. Voltage Measurement Accuracy Test Equipment Hookup .................................. 3-7
3-11 . Set v/Div to +2 Volts ......................................................................... 3-8
3-12. Channel Configuration
....................................................................... 3-9
vi

HP 16530/31A-Table of Contents
LIST OF ILLUSTRATIONS
FIGURE TITLE
PAGE
3-13. Trigger Configuration ......................................................................... 3-9
3-14. Display Configuration
....................................................................... 3-1 0
3-15. Test Equipment Hookup .................................................................... 3-10
3-16. Auto Markers Configuration ................................................................. 3-11
3-17. Channel Configuration ...................................................................... 3-12
3-18. Trigger Configuration
........................................................................ 3-12
3-19. Display Configuration
....................................................................... 3-13
3-20. Trigger Sensitivity Test Equipment Hookup ................................................ 3-13
3-21. Auto-Meas the V p-p
........................................................................ 3-14
3-22. Trigger Screen and External Source
........................................................ 3-14
3-23. Test Equipment Hookup .................................................................... 3-15
4-1 . Startup Screen ................................................................................ 4-3
4-2. Vertical Cal Choice Screen ................................................................... 4-4
4-3. Trigger Level Cal Choice Screen ............................................................. 4-4
4-4. Delay Cal Equipment Hookup ................................................................ 4-5
4-5. Channel Screen 1Impedance Select ......................................................... 4-6
4-6. Channel Selection ............................................................................. 4-6
4-7. Channel to be Calibrated ..................................................................... 4-7
4-8. Input Label Field
.............................................................................. 4-7
4-9. Overlay Screen
................................................................................ 4-8
4-10. Insert Field
.................................................................................... 4-8
4-11. Insert Channel Labels
........................................................................ 4-9
4-12. Channel Screen
.............................................................................. 4-9
4-13. Channel to Channel Skew Equipment Hookup
............................................ 4-10
4-14. Run Option Select ........................................................................... 4-1 0
4-15. Overlayed Waveforms ....................................................................... 4-11
4-16. Channel to Channel Skew Equipment Hookup
............................................ 4-11
4-17. Channel for Skew Calibration ............................................................... 4-12
4-18. Card Endplate Overhang
.................................................................... 4-13
4-19. Connector End
.............................................................................. 4-14
4-20. Cable Position ............................................................................... 4-14
4-21. Installation Summary
........................................................................ 4-15
4-22. Startup Screen
............................................................................... 4-17
4-23. Set to Default Screen
........................................................................ 4-17
4-24. Component Location
........................................................................ 4-18
4-25. Offset Voltage Tick Marks
................................................................... 4-18
4-26.
De Matching Adjustment Equipment Hookup .............................................. 4-19
4-27. Square Wave Response
..................................................................... 4-20
4-28. Attenuator Compensation Adjustment Equipment Hookup ................................ 4-21
4-29. Square Wave Response ..................................................................... 4-22
4-30. HF Compensation Adjustment Equipment Hookup ........................................ 4-23
4-31. Impedance Select
........................................................................... 4-23
4-32. Channel Select Field
........................................................................ 4-24
4-33. Square
Wave Response ..................................................................... 4-25
4-34. Square
Wave Response ..................................................................... 4-25
vii
-
------------------~----- -~---------- --~-~- ----

HP 16530/31A-Table of Contents
LIST OF ILLUSTRATIONS
FIGURE TITLE PAGE
6-1. HP 16530/31A Oscilloscope Module Block Diagram ........................................ 6-1
6-2. Acquisition Card Block Diagram .............................................................. 6-2
6-3. Timebase Card Block Diagram
............................................................... 6-2
6-4. Startup Screen ................................................................................ 6-5
6-5. Load Test System ............................................................................. 6-6
6-6. Test System Screen
........................................................................... 6-6
6-7. Main Test Menu
............................................................................... 6-7
6-8. Acquisition Memory Test Run Screen
........................................................ 6-7
6-9. Stop Field
..................................................................................... 6-8
6-10. Exit Test System ............................................................................. 6-8
6-11. Troubleshooting Flow Chart
................................................................ 6-10
6-12. Endplate Overhang .......................................................................... 6-25
6-13. Configuration Guide
......................................................................... 6-26
6-14. Cable End
................................................................................... 6-26
6-15. Cable Position
............................................................................... 6-26
6-16. Installation Summary
........................................................................ 6-27
6-17. Endplate Overhang
.......................................................................... 6-28
viii

TABLE OF CONTENTS
GENERAL INFORMATION
1-1. Introduction ............................................................................ 1-1
1-2. Modules Covered By Manual .......................................................... 1-1
1-3. Safety Requirements ................................................................... 1-1
1-4. Product Description .................................................................... 1-2
1-5. Accessories Supplied .................................................................. 1-2
1-6. Accessories Available .................................................................. 1-2
1-7. Specifications .......................................................................... 1-2
1-8. Operating Characteristics .............................................................. 1-2
1-9. Recommended Test Equipment ....................................................... 1-2

1-1. INTRODUCTION
This service manual contains information tor
testing, adjusting, and servicing the
HP
16531A 400 Msamplejs Digitizing Oscilloscope
Acquisition Card and HP 16530A 400
Msamplejs Digitizing Oscilloscope Timebase
Card. This manual is divided into six sections
as follows:
-General Information
II
-Installation
Ill -Performance Tests
IV
-Adjustments
v -Replaceable Parts
VI
-Service
Information for operating, programming, and
interfacing the HP 16530/31A Oscilloscope
Cards
is contained in the HP 16530/31A
Operating and Programming Manual supplied
with each module.
The General Information Section includes
safety requirements, a product description,
and a list of accessories supplied and of ac-
cessories available. Also included are tables
listing specifications and operating characteris-
tics, and a list of recommended test
equipment.
On the title page of this manual is a microfiche
part number. This number can
be used to or-
der 4 X 6 inch microfilm transparencies of the
manual. Each microfiche contains up to 96
photo-duplicates of the manual pages. The
microfiche package also includes the latest
Manual Changes Supplement
as well as per-
tinent Service Notes.
HP 16530/31A- General Information
SECTION I
GENERAL INFORMATION
To complete the service documentation for the
system, place this service manual
in the 3-ring
binder with your Logic Analysis System
Service Manual.
1-2. MODULES COVERED BY
MANUAL
The information covered in this manual is for
the
HP 16530/31A Oscilloscope Module. If
either of the two cards in the module has been
changed, it will have a new board number and
the manual will
be accompanied by a Manual
Changes Supplement. ·
This supplement contains the changes and
explains how to adapt the manual to the newer
board.
In addition, the supplement may con-
tain information for correcting errors in the
manual. To keep this manual
as current and
accurate
as possible, Hewlett-Packard recom-
mends that you periodically request the latest
Manual Changes Supplement.
1-3. SAFETY REQUIREMENTS
Specific warnings, cautions, and safety instruc-
tions
are placed wherever applicable
throughout the manual. These must be obser-
ved during all phases of operation, service,
and repair of the module. Failure to comply
with them violates safety standards of design,
manufacture, and intended use of this module.
Hewlett-Packard assumes no liability for the
failure of a customer to comply with these
safety requirements.
1-1

HP 16530/31A - General Information
1-4. PRODUCT DESCRIPTION
The HP 16530/31A Oscilloscope is a 100 MHz,
400 Msample/s digitizing oscilloscope. There
are two different cards in the oscilloscope
module: the two channel acquisition card and
the timebase card, which can
be used by up to
four acquisition cards. Some of the main fea-
tures are:
• 400 Msamples;s digitizing tor 100
MHz bandwidth single-shot and
repetitive analysis.
• 4k samples per channel.
• Automatic pulse parameters, displays
time between markers, acquires until
capturing specified time between
markers, performs statistical analysis
on time between markers.
• Lightweight miniprobes.
1-5. ACCESSORIES SUPPLIED
The following accessories are supplied with
the
HP 16530/31A Oscilloscope Module.
Quantity one unless shown otherwise.
• Operating manual set
• Service manual
•
HP 10018A div by 10 probes Qty 2
• Right angle BNC adapters Qty 2
(HP 1250-0076)
1-6. ACCESSORIES AVAILABLE
1-2
• 10:1, 100:1, 10 Mn, 10 pf resistive
divider probe set, 1.5 m
(HP 10020A)
• BNC to BNC cable, 1.2 m
(HP 10503A)
• 24 pin IC test clip
(HP 10211A)
• BNC-to-BNC ac coupling capacitor
(HP 10240B)
------ .. ------~ -------'----------
10:1 Probes:
• 1 Mn, 8 pt miniprobe, 1 m
(HP 10017A)
• 1 Mn, 10 pt miniprobe, 2 m
(HP 10018A)
1:1 Probes:
• 36 pf miniprobe, 1 m (HP 10021A)
•
62 pf miniprobe, 2m (HP 10022A)
• 50 n miniprobe, 1 m
(HP 10026A)
•
50 n miniprobe, 2m (HP 10027A)
100:1 Probes:
• 3 Mn, 3 pf miniprobe, 1 m
(HP 10032A)
1-7. SPECIFICATIONS
Module specifications are listed in table 1-1 .
They
are the performance standards against
which the module
is tested.
1-8. OPERATING CHARACTERISTICS
Table 1-2 lists the module operating charac-
teristics. They are not specifications, but are
typical operating characteristics included as
additional information for the user.
1-9. RECOMMENDED TEST
EQUIPMENT
Equipment required for testing and maintain-
ing the
HP 16530/31A Oscilloscope Module is
listed in table 1-3. Other equipment may be
substituted if it meets or exceeds the critical
specifications listed in the table.
-----~~---~-----------------

-
HP 16530/31 A- General Information
Table 1-1. HP 16530f31A Specifications
HP 16530/31A SPECIFICATIONS
VERTICAL (at BNC)
Bandwidth
(-3 dB): de to 100 MHz (de-coupled)
Range: 40 mv to 16 V full scale (adjustable with 2-digit resolution)
DC Gain Accuracy:
± 3% of full scale (valid within ± 10 degrees Celsius of auto-calibration
temperature)
Analog-to-Digital Conversion (ADC) Resolution: ± 1.6% of full scale
(6 bits)
DC Offset Accuracy:
± 1% of offset ± 3.2% of full scale (valid within ± 10 degrees Celsius of
auto-calibration temperature)
DC Offset Range/Resolution:
Vertical
Range
<BOO mV
~aoo mv
Voltage Measurement Accuracy (DC):
Offset
Range
±BOO mv
± 16 mv
Offset
Resolution
1 mV
20 mV
Single Cursor (X or 0) = Gain accuracy + ADC resolution + Offset accuracy
Dual Cursor (X to 0 measurement on the same waveform)
= Gain accuracy + 2 (ADC resolution)
1-3

HP 16530/31A- General Information
1-4
Table 1·1. HP 16530f31A Specifications (cont.)
HORIZONTAL
Range: 50 ns to 100 s full scale, adjustable with 3-digit resolution
Time Interval Measurement Accuracy:
(Single channel or deskewed channels with equal rise time and fall times)
Delay (Time Offset):
Pre-trigger Range
Post-trigger Range
Resolution
TRIGGER
± 0.75 ns ± 0.2% of timebase range± 0.02% of
reading (2.5 ns sample period)
± sample period ± 0.2% of timebase range ± 0.02%
of reading (~ 5 ns sample period)
4096 x sample period
500 screen diameters
Fine adjustment to 0.2%
of screen diameter
Sources: Any internal channel,
or external trigger input.
Internal Trigger:
Sensitivity
Range
Resolution
!f 12% of full scale (de to 100 MHz)
Within display window (full scale and offset)
1 %
of full scale
External Trigger: Input (rear panel input BNC)
Sensitivity
Range
Resolution
Input coupling
!f 20 mV (de to 100 MHZ)
±2V
2 mv
de
--- ------------------------------------------------ --------------------

HP 16530/31 A- General Information
Table 1-2. HP 16530/31A Operating Characteristics
HP 16530/31A OPERATING CHARACTERISTICS
VERTICAL
Input Coupling: de
Transition Time (10% to 90%):
~ 3.5 ns
Input RC: 1 Mn ± 2% or 50 n ± 3%, shunted by approximately 13 pF
Maximum Safe Input Voltage:
Probe Factors:
TIME BASE
Deskewing:
TRIGGER
1 Mn input, ± 40 v (de + peak ac)
50 n input, ± 5 v (de + peak ac)
Any integer ratio from 1:1 to 1:1 000, to scale the oscilloscope to
represent voltages seen at the probe tip.
Skew between channels can be nulled out to compensate for
probe/cable lengths.
External Trigger Input (Rear panel input BNC)
Input RC:
1 Mn ± 2 % or 50 n ± 3 %, shunted by approximately 12 pf
Maximum Safe Input Voltage:
1 Mn input ± 40 V
(de + peak ac)
50 n input ± 5 V (de + peak ac)
1-5

HP 16530/31 A- General Information
Trigger Modes
Immediate:
Edge:
Pattern:
Auto-Trigger:
Events Delay:
Table 1-2. HP 16530/31A Operating Characteristics (cont.)
Allows oscilloscope to be triggered by port-in, or another HP
16500-series measurement module.
Triggers on rising or falling edge
of any internal channel or external
trigger, count adjustable from 1 to 32,000.
Triggers on entering or exiting a specified pattern of all internal chan-
nels and external trigger, count adjustable from 1 to 32;000.
If enabled, the timebase will self-trigger if the trigger rate is below 40
Hz.
The trigger can be set to occur on the nth edge or pattern, as specified
by the user. The number
of events (n) can be set from 1 to 32,000
events.
Outputs/Rear-panel BNC:
HP 16530A output BNC provides a probe compensation source - 1
kHz square wave, switching between -0.4 V and -0.8
V, with 50 Q
output resistance.
DIGITIZER
Resolution: 6 bits (1 part in 64)
Digitizing Rate: Up to 400 megasamples;second
Digitizing Technique:
Real-time digitizing; each 4k record
is acquired on a single acquisition
Acquisition Memory Size: 4096 samples per channel
1-6

--
HP 16530/31 A- General Information
Table 1-2. HP 16530/31A Operating Characteristics (cont.)
WAVEFORM DISPLAY
Display Formats:
Waveforms can
be displayed in an overlapping and;or non-overlapping
format.
Display Resolution: 500 points horizontally
Display Modes
Single:
Accumulate:
Average:
Overlay:
Connect-the-dots:
New acquisitions replace old acquisitions on screen.
New acquisitions
are added to the screen and displayed with older ac-
quisitions until screen
is erased.
New acquisitions
are averaged with older acquisitions with updated
waveform displayed until erased.
Up to 8 acquired waveforms can be overlayed in the same display
area.
Provides a display of the sample points connected by straight lines.
Waveform Reconstruction:
When there
is insufficient data to fill every horizontal location, a post
acquisition reconstruction filter fills in the missing locations.
Waveform Math: Display capability of A-B and
A+B functions is provided.
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