Wavetek 1391 User manual

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OPERATION AND
XIAINTENANCE 31ANUAL
Model 1391
INCLUDING SCPI AND MATEICIIL
LANGUAGE DESCRIPTIONS
50 MHz VXI Pulse Generator
Q 1992 Wavefek
This dacumenlconlalns Inlormatlon proprietary
to Wavelek and Is providedsolely lor lnsrnrment
operationand maintenance.
The inlormtion In
this document may not be duplicated in any
mannerwithoul
the priorapproval inWflting lrOm
Wamek.
Wavalek
Instruments Dlvlslon
9045 Balboa Avc.
San Dicgo. CA 921 23
Tel: [phone]
800-223-9885
Fax [phone]
Manual Revision B, 4/93
ManualPart NumSer 1006-00-0694
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WARRANTY
Wavetek warrants thar all products manufactured by Wavetek conform to published Wavetek specifications
and are free from defecrs in materials and workmanship for a period of one
(1) year from the date of
delivery when used under normal conditions and within the service conditions for which [hey were fur-
nished.
The obligation ofWavetek arising from a {Vananty claim shall
be limited to repairing, or at its option,
replacing without charge, any product which in Wavetek's soleopinion proves to be defective within the
scope of the Warranty. In the event Wavetek is not able to modify, repair or replace non-conforming
defective parts orcomponents to
a condition as warranlied within a reasonable time after receipt thereof,
Buyers shall be credited for their value at the original purchase price.
Wavetek must
be notified in writing of the defect or nonconformity within the Warranty period and the
affected product returned to Wavetek's factory or to an authorized servicecenter wirhin
(30) days after
discovery of such defect or nonconformity.
For product warranries requiring return to Wavetek, products must be returned to a service facility desig-
nated by Wavctrk. Buyer shall prepay shipping charges,faxes, duties and insurance for products returned
to Wavetek for warranty service. Except for products returned to Buyer from another country, Wavetek
shall pay for return of'products to Buycr.
Wavetek shall have no responsibility hereunder for any defect or damage caused by improper storage,
improper installation, unauthorized modification, misuse, neglect, inadequate maintenance, accident or for
any product which has becn repaired or altered by anyone other than Wavetek or its authorized representa-
tive and not in accordance with instructions furnished by Wavetek.
Exclusion of Other Warranties
The Warranty described above is Buyer's
sole and exclusive remedy and no other warranty, whether
written or oral, is expressed or implied. Wavetek specifically disclaims the implied warranties of
merchantability and fitnessfor a particular purpose.
No statement. reprcsenra~ion,agreement, or
understanding, oral or wrincn, made by
an agent, distributor, representative, oremployee of Wavetek,
which is not conraincd in thc foregoing Warranty
will bc binding upon Wavetek, unlcss madc in writing
and exccu~cdby
an aurhorizcd Uravctek employee. Under no circumstances shall Wavetek be liable for
any direct, indirect, special, incidental, or consequentlal damages, expenses, losses ordelays (includ-
ing
loss of profits) based on contract, tort, or any other legal theory.
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Page 1-4, Paragraph 1.3.7, Coollng Requlrment:
Replace
"Minimum airflow requirement kr 10°C rise is 0.381 mm (.015 in) Hz0 a! 1 1.34 llsec (24 CFM).'
with
"Minimum airllow requirement for 10% rise is Q
Page 3-20, Paragl
At tne Donom or Ine secona column, cnange from
'aph 1.3.7, SUMBUS Operatlon
L - . .. . .. . -
Receiver: IN1T:CONT OFF
TR1G:SOUR:ECLTO
.~eceiver: IN1T:CONT OFF
TRIG:SOUR ECLTO
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SAFETY FIRST
PROTECT YOURSELF. Follow these precautions:
Don't touch the outputs of the instrument or any exposed test wiring
caving the output signals. This instrument can generate hazardous
voltages and currents.
Don't bypass the VXI chassis' power cord's ground lead with two-wire
extension cords or plug adaptors.
Don't disconnect the green and yellow safety-earth-ground wire that
connects the ground lugof the VXI chassispower receptacle to the chassis
ground terminal (marked with
@ or a ).
Don't hold your eyes extremely close to an rf output for a long time. The
normally nonhazardous low-power rf energy generated by the instrument
could possibly cause eye injury.
Don't energize the VXI chassis until directed to by the instaIlation
instructions,
Don't repair the instrument unless you are a qualified electronics techni-
cian and know how to work with hazardous voltages.
Pay attention tothe
WARNING statements.Theypoint out situationsthat
can cause injury or death.
Pay attention to the CAUTION statements. They point out situations that
can cause equipmenr damage.
COY~ESI'S iii
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CONTENTS
SECTION 1 SPECIFICATIONS
1.1 THE MODEL 1391 ............................................................................... 1-1
1.2
SPECIFICATIONS ...................................................................................... 1-1
1 . 2.1 Functions ............................................................................................. 1-1
1.2.2
Operating Modes ....................... ........ .......................................... 1-1
1.2.3 Inputs ................................................................................................ 1-2
1 . 2.4 OU~PUIS .......................................................................................... 1-2
1.2.5
Pulse Characteristcs ........................ .. ............................................ 7-3
1 . 2.6 MuhichannelOperafion ....................................................................... 1-3
1. 3 GENERAL ................................................................................................ 1-4
1 . 3.1 SCPl Programming ........................................................................... 1-4
1.3.2
VXlbus Interface .................................................................................. 1-4
.............................. ..............................................
1.3.3 Environmental ..... 1-4
1 . 3.4 Size ........................... ....... ................................................................... 1-4
............................................................................................... .
1 3.5 Power 1-4
.............................................................................................
1.3.6 Reliability 1-4
7.3.7 Cooling Requirement .................... .. .... .. ........................................ 1-4
1.3.8
Safety .............................................................................................. 1-4
1.3.9
EMC ............................................................................................... 1-4
SECTION 2 PREPARATION
2.1 RECEIVING INSPECTION ..................... ..... ........................................... 2-1
2.1.1
Unpacking Instructions ....................................................................... 2-1
2.1.2
ReturningEquipment ........................................................................ 2-1
2.2
PREPARATIONFOR STORAGE OR SHIPMENT .................................. 2-1
2.2.1
Packaging ........................................................................................... 2-1
2.2.2
Storage ................................................................................................ 2-1
2.3
PREPARATIONFOR USE ................................................................... 2-1
2.3.1
Log~calAddress Select~on .................... .. .... .. ............................... 2-2
2.3.2
Data Transfer BusArbitration .............................................................. 2-2
2.4
INSTALLATION .......................................................................................... 2-4
2.5
INITIALCHECKOUT AND OPERATIONVERIFICATION ........................... 2-4
SECTION 3 OPERATION
3.1 INTRODUCTION ........................................................................................ 3-1
3.2
CONNECTORSAND LED INDICATORS ................... .. ........................ 3-1
3.3
MODEL 1391 PROGRAMMING ............................... .... ....................... 3-1
3.3.1
SCPl Command Table .................................... .... ................................ 3-1
3.3.1.1
Long and Short Form Keywords ................................................... 3-3
3.3.2
Command Message Format ............................................................. 3-3
3.3.2.1
Program Message Unit .................. ..... .................................... 3-4
3.3.2.2
Program Message ....................................................................... 3-4
.....................................................
3.3.2.3 ProgramMesszge Delimiters 3-4
3.3.2.4
Parameter Forms .............................. .. ....................................... 3-4
..................................................
3.3.2.5 Program Message Terminators 3-4
.................., .............................................................
3.3.2.6 Queries ...... 3-7
............................. ..........................
3.3.3 Model 1391 SCPl Commands .. 3-7
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CONTENTS (Continued)
3.3.3.1 CALibrate Subsysiem ................................................................... 3-7
3.3.3.2 TEST Subsystem
....................... .. ............................................. 3-7
3.3.3.3 INlTiateSubsystem
...................... .. ........................................ 3-8
3.3.3.4 OUTPut Subsystem
...................................................................... 3-8
3.3.3.5 RESet Subsystem
.............................................. .... .......... 3-8
..................................................................... 3.3.3.6 SOURceSubsystem 3-9
3.3.3.7 SYSTem Subsystem
.................... ..... .................................... 3-12
3.3.3.8 TRlGger Subsystem
.................................................................... 3-12
3.3.3.9 DlAGnostic Subsystem
................................................................ 3-13
....................................... .....................
3.3.3.10 STATUSSubsystem .... 3-14
............................. 3.3.4 IEEE 488.2 Common Commands ..................... .. 3-16
3.4 MODEL 1391OPERATION
........................................................................ 3-16
3.4.1 Outpur Terminations
............................................................................ 3-16
.......................................................................
3.4.2 Input/Outpul Protection 3-17
3.4.3 PowerOn/ResetDefaults
.................... .. ........................................... 3-17
............................................ ........................ 3.4.4 Continuous Operation .. 3-17
......................................................
3.4.4.1 Frequency/Period Parameters 3-19
.........................................................................
3.4.4.2 Pulse Parameters 3-19
............................................... ..........................
3.4.4.3 Output Levels .. 3-19
3.4.4.4 PulseISquareFunctions
................................................................ 3-20
3.4.5 Marker Operation
..................................... ........................................ 3-20
3.4.6 SUMBUS Operation
................... .. .......................................... 3-20
3.4.7 PAM Operation
.................................................................................... 3-21
3.4.8 Triggered Operation
.................... , ...................................................... 3-22
............................. ................ 3.4.8.1 Level and Slope Parameters ... 3-23
3.4.8.2 ExternalTrigger Inpul
................................................................ 3-23
3.4.8.3 InternalTrigger
............................ .. .......................................... 3-23
3.4.8.4 BUS Trigger Commands
.......................... .............. ................ 3-23
3.4.8.5
VXI Trigger Bus Input ................................................................... 3-24
3.4.9 Gated Operation
....................... .. .................................................. 3-24
3.4.9.1 ExternalWidth Operation
................... ... ............................. 3-25
3.4.10 Rurst Operation
................................................................................... 3-26
3.4.11 MasterJSlaveOperation
............................ ... .................................. 3-26
3.4.12 Status Commands
.......................................................................... 3-26
SECTION
4 CIRCUIT DESCRIPTION
4.1 INTRODUCTION
........ ....., ........ ., ............................................................... 4-1
4.2 VXI INTERFACE BOARD
........................................................................... 4-2
4.2.1 VXlbus Overview
................................................................................. 4-2
4.2.2 Interface Board
.................... , .......................................................... 4-2
4.3 PULSE GENERATOR BOARD
- DIGITAL CIRCUITS ................................. 4-3
................................................... 4.3.1 Interconnect and Power Distribution 4-5
................... ........................
4.3.2 Digital Interface and Data Registers ... 4-5
....................................................................... 4.3.3 Frequency Synthesizer 4-7
4.3.4 Trigger Amplifier
................................................................................. 4-8
4.3.5 VXlbus TTL Trigger Receiver
.............................................................. 4-8
4.3.6 VXlbus ECLTrigger Receiver
........................................................... 4-8
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CONTENTS (Continued)
SECTION 5
............................................ ...................
Trigger Source Selector .... 4-8
...............................................
Mode Control LogrcIBurst Counter 4-8
...................................................................
Gatable Oscillator/Divider 4-9
PGENSource Selector
..................................................................... 4-10
Delay and Width One-Shots
................................................................ 4-11
PulseGenerator
............................. .. ................................................
4-12
Output Mode Selector
........................................................................ 4-12
Sync Source Selector
....................................................................... 4-12
............................................ ...................
Sync Output Driver ............... 4-13
.............................. ......................
VXlbus ECWLTrigger Drivers .. 4-73
Delay
- Width - Frequency Autocalibration .......................... .. .......... 4-13
........................
Micro~rocessorInterfaceSchematic Dianram ............ 4-13
............................ .
4.4 PULSE GENERATOR BOARD ANALOG CI~UITS 4-73
.............................................
Main High-speedAnalog Signal Path 4-14
...........................................................................................
Level Shift 4-15
Current Switch
.................. ... . .... ......................................................
4-75
.........................................................................
Timing Capacitors 4-15
Lim~ter
................................................................................................ 4-15
.............................................................................
Trapezoid Shaper 4-16
Multiplier ....................
.. .................................................................. 4-17
............................................... .............................
Output Amplifier .. 4-17
SUMBUS Driver
.................................................................................. 4-17
......................................................
Control Voltage D to A Converters 4-18
Amplitude Conrrol/PAM Circuitry
................................................. 4-18
Transition Control CurrenlSources
............................................... 4-18
Delay
- Width One-Shot Control .......................... .. ...................... 4-19
Relay Driver
..................................................................................... 4-19
Power Oscillator
...................... .. ................................................... 4-19
................................................................................. Charge Pump 4-19
AutoCal/Buill-In-Test Circuitry
..................... .. .............................. 4-20
CALIBRATION
5.1 FACTORYREPAlR
..................................................................................... 5-1
.......................................................................................... 5.2 CALIBRATION 5-1
5.3 REQUIREDTEST EQUIPMENT
......................................................... 5-1
5.4 PERFORMANCEVERlFlCATlON PROCEDURE
........................................ 5-1
Preliminary Tests
................................................................................. 5-2
Quick FunctionalTest
.................................... .... ................................. 5-2
Sync Waveform Characteristics Test
............................................. 5-2
Gated ModeTest
.............................................................................. 5-2
..................................................................................
Burs! ModeTesr 5-3
PulseAmplitude Accuracy Test
.......................................................... 5-3
Pulse Width Accuracy Test
........................ ... .................................. 5-4
Pulse DelayAccuracy Test
...................... .. .... .... ......................... 5-4
Double Pulse Delay Accuracy Tes~
.................................................. 5-4
Function Delay Test
.......................................................................... 5-5
Pulse Output Transition Times Accuracy Test .................................... 5-5
Pulse Output Aberrations Test
..................................................... 5-5
Trigger Level Test
............................................................................... 5-6
Synthesizer Frequency Tesr
.............................................................. 5-6
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CONTENTS (Continued)
5.4.15 Burst Gatable Oscillator Frequency Test
............................................ 5-6
5.4.16 ExternalTrigger Frequencies Test
...................................................... 5-7
5.4.17 Trigger SourceTest
............................. .. ........................................ 5-7
5.4.18 Trigger Output Mode Test
................................................................... 5-7
5.4.19 MasterISlave Tesl
....................... .. .................................................. 5-8
5.4.20 SUtvlBUS Test
................................................................................ 5-8
5.4.21 PAM InputTest
.................................................................................... 5-8
.......... ....................... 5.5 ALIGNMENT PROCEDURE ... .... 5-9
.................................................................................... 5.5.1 Self Calibration 5-9
........................................... ..............
5.5.2 Semi-AutomatedProcedure .. 5-9
5.5.3 Preparation
.......................................................................................... 5-10
5.5.4 Connector Termination
........................................................................ 5-10
5.5.5 Alignment Procedure
.......................... ... .................................... 5-10
SECTION 6 TROUBLESHOOTING
6.1 FACTORY REPAIR ..................... .. ......................................................... 6-1
6.2 BEFOREYOU START
........................................................................... 6-1
6.3 REQUIREDTEST EQUIPMENT
................................................................. 6-1
6.4 ISOLATINGA PROBLEM
.................... .. ................................................. 6-1
..................................................
6.5 TROUBLESHOOTING ....................... .. 6-2
Ampl~tudeDAC Error Bit 0
....................... .... ............................... 6-2
Trailmg Edge DAC Error Bit
1 ................... .... ........................... 6-3
Leading Edge DAC Error Bit
2 ............................................................ 6-3
LimitAmplifier Error Bit 3
........................ .... ................................... 6-3
SUMBUS Error Bit
4 ........................... .............. .................................... 6-3
Delay Gatable Oscillator Error Bi! 5
.................................................... 6-3
Width Gatable Oscillator Error Bit 6
...................................................
6-3
25-50 MHz Gatable Oscillator Error Bit 7
............................................
6-4
BUS Error Error Bit
14 ......................... ... ........................................ 6-4
Abnormal LEDState
...................... ..,, .................................................. 6-4
Pulse Board Digital Interface
............................. ,,.. ................... 6-4
Autocal/Built-InTest
........................ .. ...............................................
6-4
Frequency Reference
..................... ... ............................................. 6-5
Frequency Synthesizer
................... .. ........................................... 6-5
TRIG IN
................... .. ...................................................................... 6-5
Trigger SourceSelecLor
................................................................... 6-5
TTL/ECLTriggers to Backplane
.......................................................... 6-5
TTUECL Triggers from Backplane
...................................................... 6-5
Mode Control LogiclBurst Counter
............................................ 6-5
SYNC OUT Selector and Dr~ver
..........................................................
6-6
Amplitude Control and Multiplier
..................................................... 6-6
PAM IN
............................................................................................. 6-6
Transition Time Generator
................................................................ 6-6
Trapezoid Shaper
.................... ... .................................................... 6-7
Output Power Supplies
.................................................................. 6-7
Output ArnplifierIPULSEOUT
................... ... ............................... 6-7
Cosr~srs vii
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CONTENTS (Continued)
SECTION 7 PARTS AND SCHEMATICS
................... ..........................................................
7.1 DRAWINGS ........ 7-1
.....................................................................................................
7.2 ERRATA 7- 1
....................................................................................
7.3 ORDERING PARTS 7-1
APPENDIX
.............................................
APPENDIX A: MATEICIILPROGRAMMING A-1
..................................................
APPENDIX B: SCPl COMMAND TREE 8-1
APPENDIX C: SELF CALIBRATION ...................................................... C-1
APPENDIX D: SELF TEST
...................................................................... D-1
...........................
APPENDIX E: SCPl CONFORMANCE INFORMATION E-1
Table 2-7
Table 3-1
Table 3-2
Table 3-3
Table 3-4
Table 3-5
Table 5-1
Table 6-1
Table 6-2
Table 6-3
Table 6-4
Table 6-5
Table 6-6
Table 6-7
TABLES
.................... .... .............
Tesl Equipmentand Tools ,. .... 2-4
...................... ......................... Model 1391 Front Panel ....., 3-3
........................................... Model 1391Command Summary 3-5
Error Messages.
...................................................................... 3-15
IEEE 488.2 CommonCommands
................... .. ................. 3-76
Inputand Output Impedances
................................... .... . 3-16
List of Test Equipment
........................ .. ............................ 5-1
List of Test Equipmenland Tools
......................................... 6-1
Problems Identifiedby 'TST
....................... .. ............. 6-2
Problemsnot Identified by 'TST
....................................... 6-2
Trigger SourceSelector Control Lines
.................................... 6-5
Sync Selector Control Lines
.................................................... 6-6
TransitionTiming Range Capacitor Selection
........................ 6-6
Output Arnplif~erVoltages
....................................................... 6-7
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