Tektronix PG 509 User manual

Tektronix, Inc.
P.O. Box 500
Beaverton, Oregon
IbktfoniX’
(XiMMITTEDTO EXCELLENCE
PG 509
Pulse
Generator
INSTRUCTION MANUAL
97077 Serial Number
070-7755-00
Product Group 75 Rrst Printing OCT 1989

Copyright •1989 Tektronix, Inc. All rights reserved.
Contents of this publication may not be reproduced in any
form without the written permission of Tektronix, Inc.
Products of Tektronix, Inc. and its subsidiaries are covered
by U.S. and foreign patents and/or pending patents.
TEKTRONIX, TEK, SCOPE-MOBILE, and %are
registered trademarks of Tektronix, Inc. TELEQUIPMENT
is aregistered trademark of Tektronix U.K. Limited.
Printed in U.S.A. Specification and price change privileges
are reserved.
INSTRUMENT SERIAL NUMBERS
Each instrument manufactured by Tektronix has aserial
number on apanel insert, tag, or stamped on the chassis. The
letter at the thinning of the serial number designates the
country of manufactire. The last five digits of the serial number
are assigned sequentially and are unique to each instrument.
Those manufactured in the United States have six unique
digits. The country of manufacture is identified as follows:
B010000 —Tektronix. Inc. Beaverton, Oregon, USA
G1 00000 —Tektronix Guernsey, Ltd., Channel Islands
E200000 —Tektronix United Kingdom, Ltd., Loixlon
J300000 —Sony/Tektronix, Japan
H700000 —Tektronix Holland, NV, Heerenveen,
The Netherlands
Instruments manufactured for Tektronix by external vendors
outside the United States are assigned atwo digit alpha code
to identify the country of manufacture (e.g., JP for Japan, HK
for Hong Kong, IL for Israel, etc.).

CONTENTS
ILLUSTRATIONS Hi
TABLES iv
OPERATORS SAFETY SUMMARY v
SERVICING SAFETY SUMMARY vil
tSpecification
SPECIRCATION 1-1
INTRODUCTION 1-1
PERFORMANCE CONDITIONS 1-2
2System instaiiation
SYSTEM INSTALLATION 2-1
PREPARATION FOR USE 2-1
FRONTPANO.CONTROLSANDCONNECTORS 2-3
REPACKAGING INFORMATION 2-3
3Appiications
APPLICATIONS 3-1
SYSTEM FUNDAMENTALS 3-1
TYPICAL APPUCATION 3-3
WASNIMO I
Th» Information In tfw ramalnlng sactlons of this manual Is for quailTiad servica parsonnal only. Martotha
"Sarvlca Safaty Summary' locatad War tit this manual.
4
Theory of Operation
THEORY OF OPERATION <-1
INTRODUCTION A-1
CLOCK AND PRETRIGGER A-1
PULSE DELAY CIRCUrT 4-1
STROBE GENERATOR 4-1
OUTPUT 4-2
CHARGE UNE 4-2
POWER SUPPUES 4-2
PG 509 PulM Generator Instruction Manual I

Contents
5Performance Check Procedures
PERFORMANCE CHECK PROCEDURES 5-1
INTRODUCTION 5-1
PERFORMANCE CHECK INTERVAL 5-1
PREPARATION 5-1
CHARACTERIZATION OF THE 11801 OSCILLOSCOPE 5-2
TRANSIENT RESPONSE AND AMPLITUDE VERIRCATION 5-2
6Adjustment Procedures
ADJUSTMENT PROCEDURES 6-1
INTRODUCTION 6-1
PERFORMANCE CHECK INTERVAL 6-1
PREPARATION 6-1
POWER SUPPLY VERIRCATION/ADJUSTMENT 6-2
CHARACTERIZATION OF THE 11801 OSaLLOSCOPE 6-3
TRANSIENT RESPONSE AND AMPUTUDE VERIRCATION/ADJUSTMENT . . .6-4
7Maintenance and Diagnostics
MAINTENANCE AND DIAGNOSTICS 7-1
GENERAL MAINTENANCE 7-1
CIRCUrr BOARD REMOVAL AND INSTALLATION 7-4
SIDE COVERS 7-4
MAIN BOARD 7-4
TROUBLESHOOTING 7-4
3Options
9Replaceable Electrical Parts
10Diagrams
7
1
Replaceable Mechanical Parts
II PG 500 Pulse Generator instruction Manual

Contents
ILLUSTRATIONS
Rgure Pafle
1-
1PG 509 typical system Installation 1-1
2-
1Installation and Removal 2—2
2-
2PG 509 front panel controls and connectors 2-3
3-
1Terms used hi desoiiblnQ pulse characteristics 3-1
3-2 Rise time difference for two cascaded devices 3-2
3-
3Typical high-frec^jency distortion effect 3-3
4-
1PG 509 block diagram 4-3
6-
1PG 509 adjustment locations 6-2
7-
1Orientation arxf disassembly of multipin comectors 7—3
7-2 Troubieshooting Flowchart 7-5
PG 509 Pi^ Generator Instruction Manual

Contents
TABLES
Table Page
1-1 Electrical Characteristice 1-2
1-2 Environmental Characteristicsa 1-3
1-3 Mechanical Characteristics 1-3
5-
1Test Equipment Required 5-1
6-
1Test Equipment Required 6—1
6-
2Power Supply Verification 6—2
7-
1Relative Susceptibility to Static Discharge Damage 7-1
hr PG 509 Pulse Generator instruction Manual

OPERATORS SAFETY SUMMARY
T)ie general safety Information In this part of the summary Is for
both operating and servicing personnel. Specific warnings and
cautions will be found throughout the marxtal where they apply
and do rat appear In this summary.
TERMS
In This Manual
CAUTION statements Identify conditiorts or practices that could
result in damaige to the equipment or other property.
WARNING statements identify conditions orpracticesthat could
result in personal injury or loss of life.
TERMS
Power Source
This product is intertded to operate from apower source that will
not apply more than 250 volts rms between the supply
conductors or between either supply conductor and ground. A
protective grourxj connection by way of the grounding conduc-
tor in the power cord is essential for safe operation.
Grounding the Product
This product is grourxtod through the grounding conductor of
the power cord. To avoid electrical shock, plug the power cord
Intoaproperly wired receptacle before making any connections
to the prcxluct input or output terminals. Aprotective grourKi
corviection bywayof the grouridirig corxtuctor in the powercord
is essential for safe operation.
Danger Arising from Loss of Ground
As Marked on Equipment
CAUTION indicates apersonal irijury hazard rx>t irrvnediateiy
accessible as one reads the markinj^ or ahazard to property,
including the equipment itself.
DANGER indicates apersonal injury hazard immediately
accessible as one reads the marking.
SYMBOLS
upon loss of the protective-ground connection, all accessible
conductive parts (including knobs and controls that mayappear
to be Insulated) can rerxjer an eiectrlc shock.
Use the Proper Power Cord
Use only the power cord and connector specified for your
product
Use only apower cord that is in good conditkxi.
Use the Proper Fuse
In This Manual
This tymbol IndtoaiM where appioable oaulfotwy
or other Mormation is to be found.
To avoid fire hazard, use ortiy afuse of the correct type, vottage
rating and current rating as specified In the parts list for your
product
Do Not Operate In Explosive Atmospheres
As Marked on Equipment
DANGER-High vottage.
Toavoidexpioeion, donotoperatethis instrumentIn anexplosive
atmosphere unless it has been specifically certified for such
operattoa
Do Not Remove Covers or Panels
ProlBCllvB ground (serto) tocminal.
ATTENTION -Refer to manual.
To avoid personal irtjury, do rxX remove the product covers or
partels. Do rvX opet^ the instrument without the covers and
panels properly installed.
PG 509 Pulse Generator InstrucUon Manual V

Servic* Safety Summary
SERVICING SAFETY SUMMARY
FOR QUALIFIED SERVICE PERSONNEL ONLY
Rater also to the preceding Operators Safety Summary.
Do Not Service Alone
Do not perform Internal service or adjustment of this product
unless another person capable of rendering first aid and
resuscitation Is present
Use Cere When Servicing With Power On
Dangerous voltages exist at several points in this product To
avoid personal ii^ury, do not touch exposed connections or
components while power is on.
Disconnect power before rerrx)virg protective panels, sotderirx),
or replacing components.
Power Source
This product is intended to operate from apower source that
does not apply more than 2S0 volts rms between the supply
conductors or between either supply conductor and ground. A
protective ground oonrwction by way of the grounding conduc-
tor In the power oord is essential for safe operation.
vl PG 509 Pulaa Generator Instruction Manual

Section 1
SPECIFICATION
INTRODUCTION
The PG 509 Pulse Generator is afast-risetime puise source
ptodudno narrow rectangular pulses at arepetition rate of 50
KHz.The PG 509 can deliver acontinuous puise train at an
anplltude of 25 volts into an output load of 50 ohms.
The PG 509 Pulse Generator Is aTM 500 Series plug-in
instrumenLAtl furrctlonal electronics are irx:iuded, but It requires
Insertion In aTM 500 or TM5000 Series Power Module
Mainframe for kiterf^ng to basic power supplies.
The PG 509 Pulse Generator was primarily desigrred to be an
IntegrBl part of atest system. Figure 1-1 shows primary
components arxj connections Immediately related to the Pulse
Generator In atypical system. Other than the System Controller,
Device Under Test, artd PG 509, these are:
•Aprogrammable attenuator (TEKmONIX AT 5010, or
equivalent); used to provide system selection for the
degree of attenuation required.
•Ahigh frequerxty multiplexar/switcher
(TEKTRONIX SI 5010, or equivalent); used to route inputs
and outputs between instruments and test devices while
under system control.
Note that while the PG 509 is rK)t under direct GPIB control, it is
typically directed by Instruments that are. In amostly Tektronix
instrument configuation, this would typically mean that the
PG509 be Installed In aTM 5000 (programmable plug-in
compatible) Power Module, as is required for the other
two devices.
Standard Accessory
1Instruction martual
Figure 1-1. PG 509 typical system Installation.
PG 500 Pulse Generator Instruction Marsial 1-1

SpecifIcatJon
PERFORMANCE CONDITIONS
The limits stated In the Performance Requirements column of
Table 1-1 are valid only if the PG 509 Is operated in an ambient
temperature between 0*C anti +50*C, unless otherwise stated.
The PG 509 must be In an environment whose limits are
described under Environmental Characteristics (Table 1-2).
Allow at least 15 minutes warm-uptime for operation to specified
accuracy. 60 minutes afterstorape In high humidityenvironment.
lU>le1-1
Electrical Characteristica
Ctiaracterlstics Performance Requirements
Output Amplitude 2SVIntoS0n.
variable Amplitude Range
Front Panel Adjustment Range ±5%.
Amplitude Control Input Maximum safe input voltage ^10 V.
Input Current Output Voltage
<-0.15 mA Output Is corttroiled by the front
panel VARIABLE AMPUTUDE
adjustment
-0.5 mA 2625 V±.2%.
-1i)mA 25i»V±.2%.
-1.5 mA 23.1^ V±2%.
Pulse Output Frequerx:y 50 kHz ±.10%.
Pulse Wkjtfi 44 ns ±2 ns (measured at 50% poirts).
Puisa Disable TTL logic low to disable; maximum safe input vottage <10 V.
Rise Tima 350 ps ±.50 ps (measured at System output connector).
PRETRIGGER Out 220 mV±20% (into 50 H).
PRETRIGGER signal before PULSE OUTPUT signal 115 ns ±.25% (delay factor).
1-2 PG 509 Puiae Generator instruction Manual