Tektronix CFG250 User manual

TEK
OPERATOR'S MANUAL
070-6738-00
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CFG250
FUNCTION GENERATOR
COMMITTED TO EXCELLENCE

TEK
070-6738-00
PRODUCT GROUP 46
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CFG250
FUNCTION GENERATOR
OPERATOR'S MANUAL
Please Check for
CHANGE INFORMATION
at the Rear of This Manual
First Printing November 1987
COMMITTED TO EXCElLENCE

Copyright ©1987 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 issued and pending.
TEKTRONIX, TEK, SCOPE-MOBILE,
a~d i! are registered
trademarks of Tektronix, Inc.
Printed
in Hong Kong. Specification and price change privileges
are reserved.
INSTRUMENT SERIAL NUMBERS
Each instrument has aserial number on apanel insert, tag, or
stamped on the chassis. The first number or letter designates
the
country of manufacture. The last five digits of the serial num-
ber are assigned sequentially and are unique to each instru-
ment. Those manufactured in the United States have six unique
digits. The
country of manufacture is identified as follows:
BOOOOOO Tektronix, Inc., Beaverton, Oregon, U.S.A.
HK00001 Hong Kong
100000 Tektronix Guernsey,
Ltd., Channel Islands
200000 Tektronix United Kingdom,
Ltd., London
300000 Sony/Tektronix, Japan
700000 Tektronix Holland, NV, Heerenveen,
The Netherlands

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Certificate of the Manufacturer/Importer
We hereby certify that the CFG250 FUNCTION GENERATOR
AND ALL INSTALLED OPTIONS
complies with the RF Interference Suppression requirements of
Amtsbl.-Vfg 1046/1984.
The German Postal Service was notified that the equipment is being
marketed.
The German Postal Service has the right
to re-test the series and to
verify that it complies.
TEKTRONIX
Bescheinigung des Herstellers/lmporteurs
Hiermit wird bescheinigt, daB der/die/das CFG250 FUNCTION
GENERATOR AND ALL INSTALLED OPTIONS
in Ubereinstimmung mit den Bestimmungen der Amtsblatt-Verfugung
1046/1984 funkentstort ist.
Der Deutschen Bundespost wurde das Inverkehrbringen dieses Gerates
angezeigt und die Berechtigung zur UberprufUng der Serie auf Einhalten
der Bestimmungen eingeraumt.
TEKTRONIX

NOTICE to the user/operator:
The German Postal Service requires that Systems assembled
by the
operator/user of this instrument must also comply with Postal
Regulation, Vfg. 1046/1984,
Par. 2, Sect. 1.
HINWEIS fUr den Benutzer/Betreiber:
Die vom Betreiber zusammengestellte Anlage, innerhalb derer dies
Gerat eingesetzt wird, muB ebenfalls den Voraussetzungen nach Par. 2,
Zift. 1der Vfg. 1046/1984 genugen.
NOTICE to the user/operator:
The German Postal Service requires that this equipment, when used in a
test setup, may only be operated if the requirements of Postal
Regulation, Vfg. 1046/1984, Par. 2, Sect. 1.7.1 are complied with.
HINWEIS
fUr den Benutzer/Betreiber:
Dies Gerat dart in MeBaufbauten nur betrieben werden, wenn die
Voraussetzungen des
Par. 2, Zift. 1.7.1 der Vfg. 1046/1984 eingehalten
werden.

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CONTENTS
Page
List of Illustrations
ii
List of Tables ii
The CFG250 2MHz Function Generator,
abrief description iii
SECTION 1-PREPARATION FOR USE
1.O-Operator'sSafety Summary 1-1
1.1-Line Voltage Selection 1-4
1.2-Grounding the Equipment 1-4
1.3-Fuses ......... .. 1-4
SECTION 2-0PERATION
2.00-Front Panel Organization 2-1
2.05-Controls, Connectors, and Indicators 2-2
2.10-Rear Panel Organization 2-4
2. 11-Controls Connectors, and Indicators 2-5
2.20-Functions and Applications 2-6
2.21-Sine Wave 2-6
2.22-Square Wave 2-7
2.23-Sawtooth Wave 2-8
2.24- TTL 2-9
2.25-Sweep Output 2-9
2.26-Voltage Controlled External Sweep Input 2-9
SECTION 3-SPECIFICATIONS
3.1-General Characteristics 3-1
3.2-Electrical Characteristics 3-3
CFG250 Operator's

Page
SECTION 4-0PERATOR MAINTENANCE
SECTION 5-BASIC THEORY OF OPERATION
SECTION
6-GLOSSARY OF TERMS
LIST OF ILLUSTRATIONS
Figure 2-1. Front Panel 2-1
Figure
2-2. Rear Panel 2-4
Figure 2-3. Output Test Configuration 2-7
Figure 5-1. Circuit Block Diagram 5-1
LIST OF TABLES
Table 2-1. Waveform chart for symmetry
and invert controls 2-3
ii
CFG250 Operator's

THE CFG250 2 MHz FUNCTION
GENERATOR
The TEKTRONIX CFG250 2MHz FUNCTION GENERATOR pro-
duces sine, square and sawtooth waves and
TTL signals. Its ap-
plications include testing and calibration of audio, ultrasonic, and
servo systems. The CFG250's sweep function can be internally
controlled
or controlled with an external DC level. Duty cycle, DC
offset, sweep rate, sweep width and amplitude are controlled by
the operator. The CFG250 has an output
frequency range of
0.2 Hz to 2MHz.
The TEKTRONIX CFG250 has alocking, multi-position handle
that folds under
the instrument to allow stacking with other in-
struments
of the same series. The instrument is delivered with a
power
cord and an Operator's manual.
Should you need
more information about your CFG250 2MHz
Function Generator
or other Tektronix products: contact the
nearest Tektronix Sales Office
or Distributor, consult the
Tektronix
product catalog, or in the U.S., call the Tektronix
National Marketing Center.
CFG250 Operator's iii

SECTION 1
PREPARATION
FOR USE
CFG250 Operator'S

Preparation for Use
OPERATOR'S SAFETY SUMMARY
The general safety information in this part of the summary is for
both operating
and service personnel. Specific warnings and cau-
tions wili be found throughout the
manual where they apply and
do not appear in this summary.
Terms Used In This Manual
CAUTION
statements identify conditions or practices that could
result in
damage to the equipment or other property.
WARNING
statements identify conditions or practices that could
result in personal injury
or loss of life.
Terms
As Marked on Equipment
CAUTION indicates apersonal injury hazard that is not immedi-
ately accessible as one reads the markings.
or ahazard to prop-
erty. including
the equipment itself.
DANGER indicates apersonal injury hazard immediately accessi-
ble as one reads the marking.
Symbols
In This Manual
This symbol indicates where applicable cautionary
or
other information is to be found.
CFG250 Operator's
1-1