Tektronix AFG3000 Service Manual

x

AFG3000 Series
Arbitrary/Function Generators

ZZZ

Service Manual

*P071164005*

071-1640-05

Service Manual

AFG3000 Series
Arbitrary/Function Generators

071-1640-05

Warning

The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.

www.tektronix.com

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or
suppliers, and are protected by national copyright laws and international treaty provisions.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifications and price change privileges reserved.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc.
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA

For product information, sales, service, and technical support:

 In North America, call 1-800-833-9200.

 Worldwide, visit www.tektronix.com to find contacts in your area.

WARRANTY 16

Tektronix warrants that the product will be free from defects in materials and workmanship for a period of three (3)
years from the date of original purchase from an authorized Tektronix distributor. If the product proves defective
during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts
and labor, or will provide a replacement in exchange for the defective product. Batteries are excluded from this
warranty. Parts, modules and replacement products used by Tektronix for warranty work may be new or reconditioned
to like new performance. All replaced parts, modules and products become the property of Tektronix.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of
the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by Tektronix, shipping charges prepaid,
and with a copy of customer proof of purchase. Tektronix shall pay for the return of the product to Customer if the
shipment is to a location within the country in which the Tektronix service center is located. Customer shall be
responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other
locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to
repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or
malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or integrated
with other products when the effect of such modification or integration increases the time or difficulty of servicing the
product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TEKTRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE
AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.
TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR
THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

Table of Contents

Specifications

Operating Information

General Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Service Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Finding Other Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii

Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Performance Verification Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Strategy for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Tektronix Service Offerings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Performance Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Operating Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

General Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Protect Your Instrument from Misuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Floating Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Protect Your DUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Powering the Instrument On and Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Self Test and Self Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Getting Acquainted with Your Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Screen Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Theory of Operation

Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Generator Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Performance Verification

Performance Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Self Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Frequency/Period Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Amplitude Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

DC Offset Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

AFG3000 Series Arbitrary/Function Generators Service Manual i

Table of Contents

Adjustment Procedures

AC Flatness Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26

Harmonics Distortion Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28

Total Harmonic Distortion Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

Spurious Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32

Rise-Fall time Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35

Adjustment Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Performance Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Enable the Service Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Save Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Clear CAL Data Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Reference Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

LF Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Flatness Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Spurious Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Trigger Delay Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Setting the Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Setting the MAC Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Maintenance

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Preventing ESD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Inspection and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Removal and Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Adjustment after Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

List of Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Summary of Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Flip Feet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Front-Panel knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Rear Case. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Front Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

A75 Front-Panel Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Display Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

Output Board (AFG310x, AFG325x) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

Separation of Rear Module and Main Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15

Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-17

Fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19

A72 CPU Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20

A82 BNC Insulator Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

Generator Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

A81 BNC Insulator Board, BNC Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

ii AFG3000 Series Arbitrary/Function Generators Service Manual

Diagrams

Replaceable Parts List

Table of Contents

Required Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

Troubleshooting Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29

Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30

Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Parts Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Using the Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

AFG3000 Series Arbitrary/Function Generators Service Manual iii

List of Tables

List of Tables

Table 1-1: Operation mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Table 1-2: Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Table 1-3: Frequency and period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Table 1-4: Phase (except DC, Noise, and Pulse) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Table 1-5: Lead delay (pulse) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Table 1-6: Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Table 1-7: DC offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Table 1-8: Internal noise add . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Table 1-9: Output characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Table 1-10: Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Table 1-11: Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Table 1-12: Rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Table 1-13: System characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Table 1-14: Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Table 1-15: Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Table 2-1: General features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Table 3-1: Combination of circuit boards used in each model . . . . . . . . . . . . . . . 3-1

Table 4-1: Performance test items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Table 4-2: Test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Table 5-1: Adjustments performed after repair . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Table 5-2: Test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Table 6-1: External inspection check list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Table 6-2: Internal inspection check list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Table 6-3: Required equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

Table 6-4: Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30

iv AFG3000 Series Arbitrary/Function Generators Service Manual

List of Figures

List of Figures

Figure 1-1: AFG3000 Series dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Figure 1-2: RM3100 Rackmount dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Figure 2-1: Front size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Figure 2-2: Output and Input connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Figure 2-3: Fuse adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Figure 2-4: Grounding equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Figure 2-5: Front-panel controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Figure 2-6: Rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Figure 2-7: Screen interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Figure 3-1: AFG3000 Series block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Figure 4-1: Frequency/Period tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Figure 4-2: 50 Ω terminator accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Figure 4-3: Amplitude tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Figure 4-4: 50 Ω terminator accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Figure 4-5: DC offset tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24

Figure 4-6: AC flatness tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26

Figure 4-7: Harmonic distortion tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28

Figure 4-8: Total Harmonic distortion tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

Figure 4-9: Spurious tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32

Figure 4-10: Rise-Fall time tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35

Figure 5-1: Reference Clock adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Figure 5-2: LF adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Figure 5-3: Flatness adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Figure 5-4: Spurious adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Figure 5-5: Trigger delay adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Figure 6-1: Disassembly order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Figure 6-2: Removing and installing the flip feet . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Figure 6-3: Rear case removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Figure 6-4: Pasting the urethane foam gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

Figure 6-5: Top cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Figure 6-6: Front case removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Figure 6-7: A75 front-panel board removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Figure 6-8: Display module removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

Figure 6-9: Output board removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15

Figure 6-10: Separation of the rear module and main chassis . . . . . . . . . . . . . . 6-16

Figure 6-11: Pull out the rear module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

Figure 6-12: Inverter removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17

Figure 6-13: Inverter installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17

Figure 6-14: Fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

Figure 6-15: Power supply removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19

Figure 6-16: Remove the BNC connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20

AFG3000 Series Arbitrary/Function Generators Service Manual v

List of Figures

Figure 6-17: CPU board removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

Figure 6-18: Generator board removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

Figure 6-19: A81 BNC Insulator board and BNC bracket removal . . . . . . . . . . 6-23

Figure 6-20: Platform troubleshooting procedure . . . . . . . . . . . . . . . . . . . . . . . . 6-26

Figure 6-21: Generator troubleshooting procedure . . . . . . . . . . . . . . . . . . . . . . . 6-27

Figure 7-1: Interconnection for AFG3011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Figure 7-2: Interconnection for AFG302xB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Figure 7-3: Interconnection for AFG310x and AFG325x . . . . . . . . . . . . . . . . . . . 7-3

Figure 8-1: Exploded diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

Figure 8-2: Rear modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

vi AFG3000 Series Arbitrary/Function Generators Service Manual

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to this
product or any products connected to it. To avoid potential hazards, use this
product only as specified.

Only qualified personnel should perform service procedures.

To Avoid Fire or

Personal Injury

Use Proper Power Cord. Use only the power cord specified for this product and

certified for the country of use.

Ground the Product. This product is grounded through the grounding conductor of
the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.

Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings and
markings on the product. Consult the product manual for further ratings
information before making connections to the product.

The common terminal is at ground potential. Do not connect the common terminal
to elevated voltages.

Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.

Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.

Avoid Exposed Circuitry. Do not touch exposed connections and components when
power is present.

Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.

Do Not Operate in Wet/Damp Conditions.

Do Not Operate in an Explosive Atmosphere.

Keep Product Surfaces Clean and Dry.

Provide Proper Ventilation. Refer to the manual’s installation instructions for

details on installing the product so it has proper ventilation.

AFG3000 Series Arbitrary/Function Generators Service Manual vii

General Safety Summary

WARNING

High Voltage

Protective Ground

(Earth) Terminal

CAUTION

Refer to Manual

Double

Insulated

Symbols and Terms

Terms in this Manual. These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result

in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in

damage to this product or other property.

Terms on the Product. These terms may appear on the product:

DANGER indicates an injury hazard immediately accessible as you read the
marking.

WARNING indicates an injury hazard not immediately accessible as you read the
marking.

CAUTION indicates a hazard to property including the product.

Symbols on the Product. The following symbols may appear on the product:

viii AFG3000 Series Arbitrary/Function Generators Service Manual

Service Safety Summary

Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service

procedures.

Do Not Service Alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.

Disconnect Power. To avoid electric shock, disconnect the mains power by means
of the power cord or, if provided, the power switch.

Use Care When Servicing With Power On. Dangerous voltages or currents may exist
in this product. Disconnect power, remove battery (if applicable), and disconnect
test leads before removing protective panels, soldering, or replacing components.

To avoid electric shock, do not touch exposed connections.

AFG3000 Series Arbitrary/Function Generators Service Manual ix

Service Safety Summary

x AFG3000 Series Arbitrary/Function Generators Service Manual

Preface

This manual provides instructions to verify the performance of, calibrate,
troubleshoot, and repair the arbitrary/function generators to the module level.

Unless noted otherwise, the term “AFG3000 Series” refers to the models in the
AFG3011, AFG3021B, AFG3022B, AFG3101, AFG3102, AFG3251, and
AFG3252 arbitrary/function generators.

NOTE. If your instrument is AFG3021 or AFG3022, refer to the service manual,

Tektronix part number 071-1640-02.

The manual consists of the following sections:

 Specifications contains a description of the arbitrary/function generator and the

characteristics that apply to it.

 Operating Information includes general information and operating

instructions.

 Theory of Operation contains circuit descriptions that support service to the

module level.

 Performance Verification contains procedures for confirming that the

arbitrary/function generator functions properly and meets warranted limits.

 Adjustment Procedures contains information that you need to manually adjust

the arbitrary/function generator so that it meets specifications.

 Maintenance contains information and procedures for performing preventive

and corrective maintenance of the arbitrary/function generator. These
instructions include cleaning, module removal and installation, and fault
isolation to the module.

 Diagrams contains interconnection diagrams.

 Replaceable Parts List includes a table of all replaceable modules, their

descriptions, and their Tektronix part numbers.

AFG3000 Series Arbitrary/Function Generators Service Manual xi

Preface

Finding Other Information

This manual mainly focuses on the performance verification, troubleshooting and
maintenance of the arbitrary/function generator. See the following list for other
documents supporting the arbitrary/function generator. All documents except
Built-in Help are on the AFG3000 Series Product Documents CD-ROM that
shipped with instrument.

Document name Description

AFG3000 Series Quick Start User Manual A quick reference to major features of the instrument and how they operate. It also provides

several tutorials to familiarize you with basic instrument features.

AFG3000 Series Programmer Manual An encyclopedia of topics that describe the arbitrary/function generator interface and

features, and gives background information on how to use them. It provides Menu
Structures, User Interface, and Programming Information.

AFG3000 Series Built-in Help A built-in help system, integrated with the User Interface application that ships with this

product. The help is preinstalled in the instrument.

Manual Conventions

Modules

Safety

This manual uses certain conventions that you should become familiar with.

Some sections of the manual contain procedures for you to perform. To keep those
instructions clear and consistent, this manual uses the following conventions:

 Front-panel controls and menu names appear in the same case (initial capitals,

all uppercase, and so on) in the manual as is used on the arbitrary/function
generator front-panel and menus. Front-panel labels are all upper case letters
(for example, MENU, SELECT, PULSE GEN, and so on).

 Instruction steps are numbered unless there is only one step.

Throughout this manual, any replaceable component, assembly, or part of the
arbitrary/function generator is referred to generically as a module. In general, a
module is an assembly (like a circuit board), rather than a component (like a
resistor or an integrated circuit). Sometimes a single component is a module; for
example, the chassis of the arbitrary/function generator is a module.

Symbols and terms related to safety appear in the Safety Summary near the
beginning of this manual.

xii AFG3000 Series Arbitrary/Function Generators Service Manual

Introduction

This manual contains information that is needed to properly service the AFG3000
Series Arbitrary/Function Generators as well as general information that is critical
to safe and effective servicing.

To prevent personal injury or damage to the arbitrary/function generator, consider
the following before attempting service:

 The procedures in this manual should be performed only by a qualified service

person.

 Read the General Safety Summary on page vii and the Service Safety Summary,

beginning on page ix.

 Read Installation in Operating Basics on page 2-2.

When using this manual for servicing, be sure to follow all warnings, cautions, and
notes.

Performance Verification Procedures

Strategy for Servicing

The performance check described in the Performance Verification section should
be done every 12 months. In addition, a performance check is recommended after
module replacement.

If the AFG3000 Series does not meet performance criteria, repair is necessary.

Throughout this manual, the term, module, refers to any field-replaceable
component, assembly, or part of the arbitrary/function generator.

This manual contains the information needed for periodic maintenance of the
arbitrary/function generator. Further, it contains information for corrective
maintenance down to the module level. To isolate a failure to a module, use the
troubleshooting procedures found in the Maintenance section. To remove and
replace any failed module, follow the instructions in the Removal and Installation
Procedures subsection. After isolating a faulty module, replace it with a
fully-tested module obtained from the factory. The Replaceable Parts List section
contains part number and ordering information for all replaceable modules.

AFG3000 Series Arbitrary/Function Generators Service Manual xiii

Introduction

Tektronix Service Offerings

Tektronix provides service to cover repair under warranty as well as other services
that may provide a cost-effective answer to your service needs.

Tektronix service technicians are well trained to service the arbitrary/function
generator. They have access to the latest information on improvements to the
AFG3000 Series as well as new options.

Warranty Repair Service

Self Service

For More Information

Tektronix warrants this product for three years from date of purchase. The warranty
appears at the front of this manual. Tektronix technicians provide warranty service
at most Tektronix service locations.

Tektronix supports repair to the replaceable part and module level.

Contact your local Tektronix service center or sales engineer for more information
on any repair or adjustment service.

xiv AFG3000 Series Arbitrary/Function Generators Service Manual

Specifications

Specifications

Performance Conditions

These specifications apply to all AFG3000 Series Arbitrary/Function Generators.
All specifications are guaranteed unless labeled “typical”. Typical specifications
are provided for your convenience but are not guaranteed.

Specifications that are check marked with the ✔ symbol are checked directly (or
indirectly) in the Performance Verification section.

All specifications apply to the arbitrary/function generator unless noted otherwise.
These specifications are valid under the following conditions:

The performance limits in this specification are valid with these conditions:

 The instrument must have been calibrated/adjusted at an ambient temperature

between +20

 The instrument must be operating at an ambient temperature between 0 °C and

°C.

+50

°C and +30 °C.

 The instrument must have had a warm-up period of at least 20 minutes.

 The instrument must be in an environment with temperature, altitude, and

humidity within the operating limits described in these specifications.

Electrical

Table 1-1: Operation mode

Characteristics Description

Run mode Continuous, Modulation, Sweep, and Burst

Burst count 1 to 1,000,000 cycles or Infinite

Internal trigger rate 1.000 μs to 500.0 s

AFG3000 Series Arbitrary/Function Generators Service Manual 1-1

Specifications

Table 1-2: Waveforms

Characteristics Description

Standard Sine, Square, Pulse, Ramp, More (Sin(x)/x, Noise, DC, Gaussian, Lorentz, Exponential Rise,

Exponential Decay, and Haversine)

Arbitrary waveform

Waveform length 2 to 131,072

Sampling rate

AFG3021B, AFG3022B,
AFG3011

AFG3101, AFG3102 Waveform length ≤ 16384: 1 GS/s

AFG3251, AFG3252 Waveform length ≤ 16384: 2 GS/s

Resolution 14 bits

Number of non-volatile waveform
memories

250 MS/s

16384 < waveform length: 250 MS/s

16384 < waveform length: 250 MS/s

4

Table 1-3: Frequency and period

Characteristics Description PV reference

page

Frequency range

1

Sine

AFG3011 1 μHz to 10 MHz

AFG3021B, AFG3022B 1 μHz to 25 MHz

AFG3101, AFG3102 1 μHz to 100 MHz

AFG3251, AFG3252 1 μHz to 240 MHz

Square

AFG3011 1 μHz to 5 MHz

AFG3021B, AFG3022B 1 μHz to 12.5 MHz

AFG3101, AFG3102 1 μHz to 50 MHz

AFG3251, AFG3252 1 μHz to 120 MHz

Pulse

AFG3011 1 mHz to 5 MHz

AFG3021B, AFG3022B 1 mHz to 12.5 MHz

AFG3101, AFG3102 1 mHz to 50 MHz

AFG3251, AFG3252 1 mHz to 120 MHz

1-2 AFG3000 Series Arbitrary/Function Generators Service Manual

Specifications

Table 1-3: Frequency and period (cont.)

Characteristics Description PV reference

page

Ramp, Sin(x)/X, Gaussian,
Lorentz, Exponential Rise,
Exponential Decay,
Haversine

AFG3011 1 μHz to 100 kHz

AFG3021B, AFG3022B 1 μHz to 250 kHz

AFG3101, AFG3102 1 μHz to 1 MHz

AFG3251, AFG3252 1 μHz to 2.4 MHz

Arbitrary

Noise bandwidth (-3 dB),
typical

Resolution 1 μHz or 12 digits

✔Accuracy (stability) ±1 ppm, 0 °C to 50 °C (except Arb)

Accuracy (aging) ±1 ppm/year

2

AFG3011 1 mHz to 5 MHz

AFG3021B, AFG3022B 1 mHz to 12.5 MHz

AFG3101, AFG3102 1 mHz to 50 MHz

AFG3251, AFG3252 1 mHz to 120 MHz

AFG3011 10 MHz

AFG3021B, AFG3022B 25 MHz

AFG3101, AFG3102 100 MHz

AFG3251, AFG3252 240 MHz

page 4-20

±1 ppm ±1 μHz, 0 °C to 50 °C (Arb)

1. Triggered/Gated Burst mode:
AFG3011, 1 μHz to 5 MHz
AFG3021B/AFG3022B, 1 μHz to 12.5 MHz
AFG3101/AFG3102, 1 μHz to 50 MHz
AFG3251/AFG3252, 1 μHz to 120 MHz

2. Triggered/Gated Burst mode:
AFG3011, 1 mHz to 2.5 MHz
AFG3021B/AFG3022B, 1 mHz to 6.25 MHz
AFG3101/AFG3102, 1 mHz to 25 MHz
AFG3251/AFG3252, 1 mHz to 60 MHz

AFG3000 Series Arbitrary/Function Generators Service Manual 1-3

Specifications

Table 1-4: Phase (except DC, Noise, and Pulse)

Characteristics Description

1

Range

1. Resolution: 0.01° (sine), 0.1° (other standard waveforms)

–180.00° to +180.00°

Table 1-5: Lead delay (pulse)

Characteristics Description

Range

Continuous mode 0 ps to period

Triggered/Gated Burst mode 0 ps to period – [pulse width + 0.8 * (leading edge time + trailing edge time)]

Resolution 10 ps or 8 digits

Table 1-6: Amplitude

Characteristics Description PV reference

page

1

Range

AFG3011 20 mV

AFG3021B, AFG3022B 10 mV

AFG3101, AFG3102 20 mV

AFG3251, AFG3252 50 mV

✔Accuracy page 4-21

AFG3011 ±(2% of setting +2 mV) (amplitude ≤ 10 V

AFG3021B, AFG3022B,
AFG3101, AFG3102,
AFG3251, AFG3252

Resolution 0.1 mV

2

Units

Output impedance 50 Ω

Isolation 42 V

1. AFG3251/AFG3252 (frequency range: >200 MHz to 240 MHz): 50 mV

2. dBm is used only for sine waveform. V

to 20 V

p-p

40 mV

20 mV

40 mV

100 mV

to 40 V

p-p

to 10 V

p-p

to 20 V

p-p

to 10 V

p-p

to 20 V

p-p

to 5 V

p-p

p-p

to 10 V

±(2% of setting +2 mV) (typical) (amplitude > 10 V

p-p

(into open circuit load)

p-p

p-p

(into open circuit load)

p-p

p-p

(into open circuit load)

p-p

p-p

(into open circuit load)

p-p

p-p

)

)

p-p

±(1% of setting +1 mV) (at 1 kHz sine waveform, amplitude > 10 mV

, 0.1 mV

p-p

V

, V

, dBm, and Volt (High level and Low level)

p-p

rms

maximum to earth

pk

is not available for Arb and Noise waveforms.

rms

, 1 mV, 0.1 dBm or 4 digits

rms

to 4 V

p-p

into 50 Ω, 100 mV

p-p

p-p

to 8 V

, 0 V offset)

p-p

into open circuit load

p-p

1-4 AFG3000 Series Arbitrary/Function Generators Service Manual

Specifications

Table 1-7: DC offset

Characteristics Description PV reference

page

1

Range

AFG3011 ±10 Vpk ac + dc into 50 Ω

AFG3021B, AFG3022B ±5 V

AFG3101, AFG3102 ±5 V dc into 50 Ω

AFG3251, AFG3252 ±2.5 V dc into 50 Ω

✔Accuracy

2

AFG3011 ±(2% of |setting| +10 mV + 1% of amplitude (V

AFG3021B, AFG3022B,
AFG3101, AFG3102,
AFG3251, AFG3252

Resolution 1 mV

Output impedance 50 Ω

ac + dc into 50 Ω

pk

±(2% of |setting| +10 mV + 1% of amplitude (V

±(1% of |setting| +5 mV + 0.5% of amplitude (V

)) (|setting| ≤ 5 V)

p-p

)) (typical) (|setting| > 5 V)

p-p

))

p-p

page 4-23

1. AFG3011: ±20 Vpk ac + dc; into open circuit load
AFG3021B/AFG3022B and AFG3101/AFG3102: ±10 Vpk ac + dc; into open circuit load
AFG3251/AFG3252: ±5 V dc; into open circuit load

2. AFG3011: Add 1.0 mV per °C for operation outside the range of 20 °C to 30 °C
AFG3021B/AFG3022B and AFG3101/AFG3102: Add 0.5 mV per °C for operation outside the range of 20 °C to 30 °C.
AFG3251/AFG3252: Add 2.0 mV per °C for operation outside the range of 20 °C to 30 °C.

Table 1-8: Internal noise add

Characteristics Description

Range 0% to 50% of amplitude setting (V

Resolution 1%

) of signal waveform

p-p

AFG3000 Series Arbitrary/Function Generators Service Manual 1-5

Specifications

Table 1-9: Output characteristics

Characteristics Description

Sine wave

✔Flatness (at 1.0 V

amplitude (+4 dBm), relative to 100 kHz) page 4-26

p-p

AFG3011 < 5 MHz: ±0.15 dB

5 MHz ≤ frq ≤ 10 MHz: ±0.3 dB

AFG3021B, AFG3022B < 5 MHz: ±0.15 dB

5 MHz ≤ frq < 20 MHz: ±0.3 dB
20 MHz ≤ frq ≤ 25 MHz: ±0.5 dB

AFG3101, AFG3102 < 5 MHz: ±0.15 dB

5 MHz ≤ frq < 25 MHz: ±0.3 dB
25 MHz ≤ frq ≤ 100 MHz: ±0.5 dB

AFG3251, AFG3252 < 5 MHz: ±0.15 dB

5 MHz ≤ frq < 25 MHz: ±0.3 dB
25 MHz ≤ frq < 100 MHz: ±0.5 dB
100 MHz ≤ frq < 200 MHz: ±1.0 dB
200 MHz ≤ frq ≤ 240 MHz: ±2.0 dB

✔Harmonic distortion (at 1.0 V

amplitude) page 4-28

p-p

AFG3011 10 Hz ≤ frq < 20 kHz: < –60 dBc

20 kHz ≤ frq < 1 MHz: < –55 dBc
1 MHz ≤ frq ≤ 10 MHz: < –45 dBc

AFG3021B, AFG3022B 10 Hz ≤ frq < 20 kHz: < –70 dBc

20 kHz ≤ frq < 1 MHz: < –60 dBc
1 MHz ≤ frq < 10 MHz: < –50 dBc
10 MHz ≤ frq ≤ 25 MHz: < –40 dBc

AFG3101, AFG3102 10 Hz ≤ frq < 1 MHz: < –60 dBc

1 MHz ≤ frq < 5 MHz: < –50 dBc
5 MHz ≤ frq ≤ 100 MHz: < –37 dBc

AFG3251, AFG3252 10 Hz ≤ frq < 1 MHz: < –60 dBc

1 MHz ≤ frq < 5 MHz: < –50 dBc
5 MHz ≤ frq < 25 MHz:< –37 dBc
25 MHz ≤ frq ≤ 240 MHz: < –30 dBc

✔Total harmonic distortion
(at 1 V

amplitude)

p-p

10 Hz to 20 kHz: < 0.2% page 4-30

PV reference
page

1-6 AFG3000 Series Arbitrary/Function Generators Service Manual

Table 1-9: Output characteristics (cont.)

Specifications

Characteristics Description

PV reference
page

✔Spurious1 (non harmonic) (at 1 V

amplitude) page 4-32

p-p

AFG3011 10 Hz ≤ frq < 1 MHz: < –60 dBc

1 MHz ≤ frq ≤ 10 MHz: < –50 dBc

AFG3021B, AFG3022B 10 Hz ≤ frq < 1 MHz: < –60 dBc

1 MHz ≤ frq ≤ 25 MHz: < –50 dBc

AFG3101, AFG3102 10 Hz ≤ frq < 1 MHz: < –60 dBc

1 MHz ≤ frq < 25 MHz: < –50 dBc
25 MHz ≤ frq ≤ 100 MHz: –50 dBc + 6 dBc/oct

AFG3251, AFG3252 10 Hz ≤ frq < 1 MHz: < –50 dBc

1 MHz ≤ frq < 25 MHz: < –47 dBc
25 MHz ≤ frq ≤ 240 MHz: –47 dBc + 6 dBc/oct

Phase noise, typical (at 1 V

amplitude)

p-p

AFG3011 10 MHz: < –110 dBc/Hz at 10 kHz offset

AFG3021B, AFG3022B,

20 MHz: < –110 dBc/Hz at 10 kHz offset

AFG3101, AFG3102,
AFG3101, AFG3102

Residual clock noise, typical

AFG3021B, AFG3022B,

–63 dBm

AFG3011

AFG3101, AFG3102,

–57 dBm

AFG3251, AFG3252

Square wave page 4-35

✔Rise time/fall time

AFG3011 ≤ 50 ns

AFG3021B, AFG3022B ≤ 18 ns

AFG3101, AFG3102 ≤ 5ns

AFG3251, AFG3252 ≤ 2.5 ns

Jitter (rms), typical

AFG3021B, AFG3022B,

500 ps

AFG3011

AFG3101, AFG3102 200 ps

AFG3251, AFG3252 100 ps

AFG3000 Series Arbitrary/Function Generators Service Manual 1-7

Specifications

Table 1-9: Output characteristics (cont.)

Characteristics Description

Pulse

Pulse width

AFG3011 80 ns to 999.99 s

AFG3021B, AFG3022B 30 ns to 999.99 s

AFG3101, AFG3102 8 ns to 999.99 s

AFG3251, AFG3252 4 ns to 999.99 s

Resolution 10 ps or 5 digits

Pulse duty 0.001% to 99.999%

Leading edge/trailing edge
transition time

AFG3011 50 ns to 0.625 * pulse period

AFG3021B, AFG3022B 18 ns to 0.625 * pulse period

AFG3101, AFG3102 5 ns to 0.625 * pulse period

AFG3251, AFG3252 2.5 ns to 0.625 * pulse period

Resolution 10 ps or 4 digits

Overshoot, typical < 5%

Jitter (rms), typical

AFG3021B, AFG3022B,
AFG3011

AFG3101, AFG3102 200 ps

AFG3251, AFG3252 100 ps

Ramp

Linearity (at frequency: 1 kHz, amplitude: 1 V

AFG3251, AFG3252,
AFG3011

AFG3021B, AFG3022B ≤ 0.1% of peak output at 10% to 90% of amplitude range

AFG3101, AFG3102 ≤ 0.15% of peak output at 10% to 90% of amplitude range

Symmetry 0% to 100%

Arbitrary

Rise time/fall time, typical

AFG3011 ≤ 80 ns

AFG3021B, AFG3022B ≤ 20 ns

AFG3101, AFG3102 ≤ 8ns

AFG3251, AFG3252 ≤ 3ns

500 ps

, symmetry: 100%)

p-p

≤ 0.2% of peak output at 10% to 90% of amplitude range

PV reference
page

1-8 AFG3000 Series Arbitrary/Function Generators Service Manual

Table 1-9: Output characteristics (cont.)

Specifications

Characteristics Description

Jitter (rms), typical

AFG3021B, AFG3022B

4 ns

AFG3011

AFG3101, AFG3102 1 ns at 1 GS/s

4 ns at 250 MS/s

AFG3251, AFG3252 500 ps at 2 GS/s

4 ns at 250 MS/s

1. Exclude harmonics and channel crosstalk.

Table 1-10: Modulation

Characteristics Description

AM (Amplitude Modulation)

Carrier waveforms Standard waveforms (except Pulse, DC, and Noise) and Arb

Modulation source Internal or External

Internal modulating

Sine, Square, Ramp, Noise, and Arb

waveforms

Internal modulating

2 mHz to 50.00 kHz

frequency

Depth

0.0% to 120.0%

FM (Frequency Modulation)

Carrier waveforms Standard waveforms (except Pulse, DC, and Noise) and Arb

Modulation source Internal or External

Internal modulating

Sine, Square, Ramp, Noise, and Arb

waveforms

Internal modulating

2 mHz to 50.00 kHz

frequency

Peak deviation

AFG3011 DC to 5 MHz

AFG3021B, AFG3022B DC to 12.5 MHz

AFG3101, AFG3102 DC to 50 MHz

AFG3251, AFG3252 DC to 120 MHz

1

2

PV reference
page

AFG3000 Series Arbitrary/Function Generators Service Manual 1-9

Specifications

Table 1-10: Modulation (cont.)

Characteristics Description

PM (Phase Modulation)

Carrier waveforms Standard waveforms (except Pulse, DC, and Noise) and Arb

Modulation source Internal or External

Internal modulating

Sine, Square, Ramp, Noise, and Arb

waveforms

Internal modulating

2 mHz to 50.00 kHz

frequency

Phase deviation range

0.0 to 180.0 degrees

FSK (Frequency Shift Keying)

Carrier waveforms Standard waveforms (except Pulse, DC, and Noise) and Arb

Modulation source Internal or External

Internal key rate 2 mHz to 1.000 MHz

Number of keys 2

PWM (Pulse Width Modulation)

Carrier waveforms Pulse

Modulation source Internal or External

Internal modulating

Sine, Square, Ramp, Noise, and Arb

waveforms

Internal modulating

2 mHz to 50.00 kHz

frequency

Deviation range

0.0% to 50.0% of pulse period

Sweep

Type Linear or Logarithmic

Start/stop frequency

3

AFG3011 1 μHz (except Arb: 1 mHz) to 10 MHz

AFG3021B, AFG3022B 1 μHz (except Arb: 1 mHz) to 25 MHz

AFG3101, AFG3102 1 μHz (except Arb: 1 mHz) to 100 MHz

AFG3251, AFG3252 1 μHz (except Arb: 1 mHz) to 240 MHz

Sweep/hold/return time

4

Range: 1 ms to 300 s (sweep time)

0 ms to 300 s (hold/return time)

Resolution: 1 ms or 4 digits

Total sweep time accuracy,

≤ 0.4%

typical

2

2

1. The maximum waveform length for Arb is 4,096. Waveform data points over 4,096 are ignored.

2. The maximum waveform length for Arb is 2,048. Waveform data points over 2,048 are ignored.

3. Pulse, DC, and Noise waveforms are not available. Start and stop frequencies depend on the waveform shape.

4. Total sweep time = Sweep time + Hold time + Return time ≤ 300 s

1-10 AFG3000 Series Arbitrary/Function Generators Service Manual

Inputs/Outputs

Table 1-11: Front panel

Characteristics Description

Trigger output

Level Positive TTL level pulse into 1 kΩ

Impedance 50 Ω

Jitter (rms), typical

AFG3021B, AFG3022B,
AFG3011

AFG3101, AFG3102 200 ps

AFG3251, AFG3252 100 ps

Trigger input

Level TTL compatible

Pulse width 100 ns minimum

Impedance 10 kΩ

Slope Positive/negative, selectable

Trigger delay 0.0 ns to 85.000 s

Jitter (rms), typical Burst: < 500 ps (trigger input to signal output)

500 ps

Resolution: 100 ps or 5 digits

Specifications

AFG3000 Series Arbitrary/Function Generators Service Manual 1-11

Specifications

Table 1-12: Rear panel

Characteristics Description

External modulation input

Input range ±1.0 V full scale (except FSK)

3.3 V logic level (FSK)

Impedance 10 kΩ

Frequency range AM, FM, PM, FSK, PWM: DC to 25 kHz (sampling rate: 122 kS/s)

External reference output AFG3011, AFG3101, AFG3102, AFG3251, and AFG3252

Impedance 50 Ω, AC coupled

Amplitude 1.2 V

External reference input

Impedance 1 kΩ, AC coupled

Required input voltage swing 100 mV

Lock range 10 MHz ± 35 kHz

CH1 Additional input AFG3101, AFG3102, AFG3251, and AFG3252

Impedance 50 Ω

Input range –1 V to +1 V (DC + peak AC)

Bandwidth DC to 10 MHz (–3 dB) at 1 V

into 50 Ω

p-p

to 5 V

p-p

p-p

p-p

General

Table 1-13: System characteristics

Characteristics Description

Warm-up time, typical 20 minutes minimum

Power on self calibration, typical < 16 s

Configuration times, typical USB LAN GPIB

Function change 95 ms 103 ms 84 ms

Frequency change 2 ms 19 ms 2 ms

Amplitude change 60 ms 67 ms 52 ms

Select user Arb 88 ms 120 ms 100 ms

Data download, typical 4000 points waveform data

GPIB: 42 ms
USB: 20 ms
LAN: 84 ms

Acoustic noise, typical < 50 dBA

Weight (approximate) 4.5 kg

Dimensions See Figure 1-1 and Figure 1-2 on page 1-14

1-12 AFG3000 Series Arbitrary/Function Generators Service Manual

Tabl e 1- 1 4 : Po wer

Characteristics Description

Source voltage and frequency 100 V to 240 V, 47 Hz to 63 Hz

115 V, 360 Hz to 440 Hz

Power consumption Less than 120 W

Table 1-15: Environmental

Characteristics Description

Temperature range

Operating 0 °C to +50 °C

Non operating –30 °C to +70 °C

Humidity

Operating At or below +40 °C: ≤ 80%

> +40 °C to +50 °C: ≤ 60%

Altitude

Operating Up to 3,000 meters (10,000 feet)

Specifications

AFG3000 Series Arbitrary/Function Generators Service Manual 1-13

Specifications

6.3

(0.25)

3.1

(0.13)

329.6

(12.98)

156.3

(6.16)

24.0

(0.95)

6.5

(0.26)

All dimensions are shown
in mm and (in).

27.3

(1.08)

39.5

(1.56)

118.5
(4.67)

51.2

(2.02)

67.5

(2.66)

34.6

(1.37)

22

(0.87)

154.4
(6.08)

7.6

(0.30)

5.1

(0.20)

6.0

(0.24)

BNC connectors

28.7

(1.13)

BNC connectors

176.2
(6.94)

101.6
(4.00)

482.6

(19.00)

465.5

(18.32)

37.3

(1.47)

154.3
(6.08)

44.4

(1.75)

101.6

(4.00)

36.8

(1.45)

37.3

(1.47)

25.4

(1.00)

Front

Figure 1-1: AFG3000 Series dimensions

Figure 1-2: RM3100 Rackmount dimensions

1-14 AFG3000 Series Arbitrary/Function Generators Service Manual

Operating Information

Operating Basics

This section provides installation and operating information that is necessary for
service.

General Features

The following table and bulleted list describe the general features of the AFG3000
Series Arbitrary/Function Generators.

Table 2-1: General features

Feature AFG3011 AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252

Channel 1 121212

Sine 10 MHz 25 MHz 100 MHz 240 MHz

Pulse / Square 5 MHz 12.5 MHz 50 MHz 120 MHz

Ramp / Gaussian 100 kHz 250 kHz 1 MHz 2.4 MHz

Arbitrary

Waveform Length 2 to 131,072 2 to 131,072 2 to 131,072 2 to 131,072

Sample Rate

Waveform Length ≤ 16384

250 MS/s

250 MS/s

1 GS/s

2 GS/s

16384 < Waveform Length

Resolution 14 bits 14 bits 14 bits 14 bits

Amplitude 20 V

Display Color Mono-

Interface USB, LAN,

250 MS/s

p-p

GPIB

250 MS/s

10 V

p-p

Color Color Color

chrome

USB, LAN, GPIB USB, LAN, GPIB USB, LAN, GPIB

250 MS/s

10 V

p-p

 Three functions integrated into one generator

 10 MHz to 240 MHz Function Generator

 5 MHz to 120 MHz Pulse Generator

 14 bits Arbitrary Waveform Generator

 Ground isolation

 Synchronous operation

 USB flash drive interface

250 MS/s

5V

p-p

AFG3000 Series Arbitrary/Function Generators Service Manual 2-1

Operating Basics

156.3 mm
(6.16 in)

329.6 mm
(12.98 in)

Installation

Operating Requirements

Environmental

 ArbExpress Software

 Context-sensitive Help system

Use the following information to safely install your instrument.

AFG

DUAL CHANNEL

3102

ARBITRARY/FUNCTION GENERATOR

USB

USB

Memory

Memory

1GS/s
100MHz

View

Sine

Square

Ramp

Pulse

Arb

Output

Run ModeFunction

Continuous Modulation

Frequency/Period Amplitude/High

Phase Delay

Leading/TrailingDuty/Width

Edit

Utility

Save RecallMore...

Channel

Ch2

Ch1

Sweep Burst

Offset/Low

Help

Default

TriggerTrigger

InputOutput Output

Figure 2-1: Front size

1. Place the instrument on a cart or bench, observing clearance requirements:

 Sides: 50 mm (2 in)

 Rear: 50 mm (2 in)

2. Before operating, ensure that the ambient temperature is between 0 °C and

+50 °C (+32 °F and +122 °F).

CAUTION. To ensure proper cooling, keep both sides of the instrument clear of

obstructions.

Power Supply Requirements

Source Voltage and Frequency 100 V to 240 V, 47 Hz to 63 Hz

Power Consumption Less than 120 W

or 115 V, 360 Hz to 440 Hz

2-2 AFG3000 Series Arbitrary/Function Generators Service Manual

Protect Your Instrument from Misuse

Do not mistake Output connectors for Input.

Output

Input

Adapter (P/N: 013-0345-00)

0.125 A fuse (P/N: 159-0454-00 (3 each))

Check Input and Output

Connectors

Figure 2-2: Output and Input connectors

The instrument has both input and output connectors on the front panel.
When connecting a cable, be sure to distinguish the input connector from the output
connectors.

Operating Basics

Avoid Instrument Damage

The arbitrary/function generator input and output connectors are floating
inputs/outputs.

WAR N I N G. To avoid personal injury due to electric shock, do not apply voltages

in excess of 42 Vpk to any BNC connector ground or to the chassis ground.

CAUTION. Do not short output pins or apply external voltages to Output

connectors. The instrument may be damaged.

Do not apply excessive inputs over +5 V to Trigger Input connector. The instrument
may be damaged.

The instrument will be damaged if a large DC or AC voltage is applied to the output
or input connectors. To protect the output circuits, a fuse adapter is provided as an
optional accessory. When the instrument is used by students or other inexperienced
users, always attach the fuse adapter to the output connectors to avoid damage.

Tektronix part numbers for the fuse adapter are as follows:

Figure 2-3: Fuse adapter

AFG3000 Series Arbitrary/Function Generators Service Manual 2-3

Operating Basics

Chassis ground

Common ground

Floating Ground

Since the common (input and output channel common) of the arbitrary/function
generator is electrically isolated from the chassis ground (the instrument chassis
and ground line of the AC connector), you can make a floating connection between
the instrument and other equipment.

All the signal output connectors are connected to the common ground, and the
remote interface connector is connected to the chassis ground.

CAUTION. When you make a floating connection, review the following

precautions:

The maximum rated voltage between the chassis ground and common ground is
42 V
and common ground goes over 42 V

(DC + peak AC). When the potential voltage between the chassis ground

p-p

, the internal protective circuit will be

p-p

activated to protect the circuits. However, higher voltage may cause the internal
circuits in the instrument to be damaged.

When a potential voltage exists between the chassis ground and common ground, a
short circuit from output to ground causes the instrument internal fuse to open and
the output is stopped. If the fuse opens, you need to contact your local Tektronix
Service Support.

When a potential voltage exists between the common ground and chassis ground,
short-circuiting between them may lead to excessive current flow and the internal
or external circuits may be damaged.

Figure 2-4: Grounding equivalent circuit

2-4 AFG3000 Series Arbitrary/Function Generators Service Manual

Protect Your DUT

Operating Basics

Use care when you connect the instrument Channel Output to your DUT (device
under test). To avoid damage to your DUT, the following preventive measures are
provided. Follow these steps to set the limit values for high level and low level.

2

1

1. Push the front-panel Top Menu button. The Output Menu is displayed at
the bottom of the bezel menu. Select Output Menu.

2. In this example, High Limit is set to 5.000 V, and Low Limit is set to –5.000 V.

3

3. Push the Limit bezel button.

4. Select High Limit. Use numeric keys or the general purpose knob to enter a

value. Enter 50 mV for High Limit, and -50 mV for Low Limit.

5

5. Push the front-panel Sine button to display the waveform parameter. Confirm
that High and Low voltage levels were changed.
You cannot enter any values greater than 50 mV for High level.

NOTE. When you set limit values using Output Menu, a level indicator is displayed

at left end of graph area. Refer to Screen Interface on page 2-10 for the level
indicator.

4

AFG3000 Series Arbitrary/Function Generators Service Manual 2-5

Operating Basics

1. Insert the AC power cord into the power receptacle on the rear panel.

2. Use the front-panel power button to power on the instrument.

Wait until the front panel display shows that all power-on self tests passed. In
this example, High Limit is set to 5.000 V, and Low Limit is set to –5.000 V.

120
VA

1. Use the front-panel power button to power off the instrument.

Powering the Instrument On and Off

Power On

1

DUAL CHANNEL

AFG

3102

ARBITRARY/FUNCTION GENERATOR

USB

USB

Memory

2

Memory

1GS/s
100MHz

View

Sine

Square

Ramp

Pulse

Arb

Output

Run ModeFunction

Continuous Modulation

Frequency/Period Amplitude/High

Phase Delay

Leading/TrailingDuty/Width

Edit

Utility

Save RecallMore...

Channel

Ch2

Ch1

Sweep Burst

Offset/Low

Help

Default

TriggerTrigger

InputOutput Output

NOTE. You can select the instrument settings, Default settings or Last powered-off

settings, which are restored when you power on the instrument. Use the Utility
menu to change the settings.

Power Off

DUAL CHANNEL

AFG

3102

ARBITRARY/FUNCTION GENERATOR

USB

USB

Memory

1

Memory

1GS/s
100MHz

View

Sine

Square

Ramp

Pulse

Arb

Output

Run ModeFunction

Continuous Modulation

Frequency/Period Amplitude/High

Phase Delay

Leading/TrailingDuty/Width

Edit

Utility

Save RecallMore...

Channel

Ch2

Ch1

Sweep Burst

Offset/Low

Help

Default

TriggerTrigger

InputOutput Output

2-6 AFG3000 Series Arbitrary/Function Generators Service Manual

Self Test and Self Calibration

1. Push the front-panel Utility button.

2. Push the -more- bezel button.

3. Push the Diagnostics/Calibration bezel button.

4. The Diagnostics/Calibration execution menu is displayed.

To execute self calibration, push the Execute Calibration bezel button.
To execute the instrument diagnostics, push the Execute Diagnostics bezel
button.

The arbitrary/function generator performs a limited set of hardware tests at
power-on. You can also perform the manual diagnostics and/or self calibration
using the Utility menu.

Operating Basics

3

1

2

4

CAUTION. Do not power off the instrument while executing self calibration. The

calibration data may be damaged/ lost.

NOTE. Before executing self calibration, ensure that the ambient temperature is

between +20 °C and +30 °C (+68 °F to +86 °F).

Allow a 20 minute warm-up period prior to executing self calibration.

AFG3000 Series Arbitrary/Function Generators Service Manual 2-7

Operating Basics

Numeric keypad

Power On/Off switch

Shortcut buttons

Function buttons

Bezel menu buttons

Trigger Input connector

USB connector

View button

Trigger Output connector

CH1 and CH2 Output connectors

Menu buttons

Top Menu button

Getting Acquainted with Your Instrument

Front Panel Overview

The front panel is divided into easy-to-use functional areas. This section provides
you with a quick overview of the front-panel controls and the screen interface. The
following figure shows the front panel of the dual-channel model.

AFG

DUAL CHANNEL

3102

ARBITRARY/FUNCTION GENERATOR

USB

USB

Memory

Memory

1GS/s
100MHz

Sine

Square

Ramp

Pulse

Arb

Output

View

Run ModeFunction

Continuous Modulation

Frequency/Period Amplitude/High

Offset/Low

Phase Delay

Leading/TrailingDuty/Width

Edit

Utility

Save RecallMore...

Channel

Ch2

Ch1

Sweep Burst

Help

Default

TriggerTrigger

InputOutput Output

Figure 2-5: Front-panel controls

2-8 AFG3000 Series Arbitrary/Function Generators Service Manual

Operating Basics

120
VA

Chassis ground
screw

Security slot

Rear Panel

The following illustration shows the rear-panel connectors for the instrument.

Figure 2-6: Rear panel

EXT REF INPUT. This input is used when synchronizing multiple arbitrary/function

generators or an arbitrary/function generator and another device.

EXT REF OUTPUT. When you want to synchronize multiple AFG3000 series
arbitrary/function generators, or synchronize your arbitrary/function generator and
another instrument, use the external reference output connector. (Except
AFG3021B and AFG3022B)

ADD INPUT. The ADD INPUT connector is provided with AFG3101/AFG3102 and
AFG3251/AFG3252. This connector lets you add an external signal to the CH1
output signal.

EXT MODULATION INPUT (CH1 and CH2). The CH1 INPUT and CH2 INPUT
are independent. The signal input level of these connectors controls modula­tion depth.

USB. Used to connect a USB controller. (Type B)

LAN. Used to connect the instrument to a network. Connect a 10BASE-T or

100BASE-T cable here.

GPIB. Used to control the instrument through GPIB commands.

Security Slot. Use a standard laptop computer security cable to secure your

instrument to your location.

Chassis Ground Screw. The chassis ground screw is used to ground the instrument.
Use a unified coarse screw (#6-32, 6.35 mm length or less).

AFG3000 Series Arbitrary/Function Generators Service Manual 2-9

Operating Basics

Bezel menu

Main display area
(Parameter listing

or Graph)

View tab

Message display area

Output status

Level meter

1. Shows maximum amplitude level of your instrument.

2. Shows the range of high limit and low limit set by the user.

3. Shows the amplitude level that is currently selected. Use the

front-panel power button to power off the instrument.

Screen Interface

Figure 2-7: Screen interface

Bezel Menu. When you push a front panel button, the instrument displays the

corresponding menu on the right side of the screen. The menu shows the options
that are available when you push the unlabeled bezel buttons directly to the right of
the screen. (Some documentation may also refer to the bezel buttons as option
buttons, side-menu buttons, or soft keys.)

Main Display Area and View Tab. Pushing the front-panel View button toggles
through the view format of the main display area. The view tabs correspond with
the current view format. The arbitrary/function generator can display three
different screen formats.

Output Status. If the output is set to disable, Output Off message is displayed in this
area. When you push the front panel channel output button to enable the output, the
message will disappear.

Message Display Area. A message that monitors hardware status such as clock or
trigger is displayed in this area.

Level Meter. Amplitude level is displayed. Refer to page 2-5 for setting the high
limit and low limit. The following figure describes the level meter.

1

2-10 AFG3000 Series Arbitrary/Function Generators Service Manual

2

3

Theory of Operation

Theory of Operation

This section describes the electrical operation of the AFG3000 Series
Arbitrary/Function Generators to the module level. It describes the basic operation
of each functional circuit block shown in Figure 3-1. The descriptions for the one
and two channel units, and the color and monochrome units are slightly different.

Overview

AFG3000 Series Arbitrary/Function Generators provide seven models with
different frequency and number of channels. Each model consists of two major
sections: the platform section and the generator section. The platform section is
common to each model.

The combination of circuit boards in each model is shown in Table 3-1.

Table 3-1: Combination of circuit boards used in each model

Circuit board AFG3021B AFG3022B AFG3101 AFG3102 AFG3251 AFG3252 AFG3011

A11 Generator with Amp 1ch 1

A12 Generator with Amp 2ch 1

A31 Generator 1ch 1

A32 Generator 2ch 1

A41 Generator High 1ch 1

A42 Generator High 2ch 1

A43 Generator 1

A51 Output Amp 1 2

A61 Output Amp 1 2

A72 CPU 1111111

A75 Front Panel 1111111

A80 BNC/Peltola 11212

A81 Front BNC Insulator 1111111

A82 Rear BNC Insulator 1111111

AFG3000 Series Arbitrary/Function Generators Service Manual 3-1

Theory of Operation

NFRO&

WLX

FUL&

GR0W[(

Q,

+

&

'

$

URWDUHQH*

SLK&



Q

2

G

R0

W

[

(

Q,K&

IH5W[(

Q

,

IH5

W

[

(

WX2

W

S

HF[H



Q,''$

WLXFUL&83&

FWH0$5

025

830



'&/

HP

R

UKFRQR0

\DOSVL'

WLQ8\OSS

X6U

HZR3

DH

U$

G

QXRU*\WHID6

GQ

XRU*JQ

LWDRO

)

%68

%,

3

*

1$

/

WLXFUL&\UDPLU3

9



9



9

9

VURWDOXJH5O

D

F

R

/

9

9





9

%68

\URPH0

72%#

\URPH0

U

RWDUHQH*

SLK&Q2

'$

&$

Q,

URWDORV,

QD)

UHO

O

R

UWQR&

U

HWUHYQ

,

H

WRPH5

HFDIUHWQ,

%,3*

1

$/

#



#

SP

$HU3

SP$HU

3

VURWDOXJH5

ODFR/

99

$)*[

H[FHSW$)*[
DQG$)*

$0%+PUWNCVQT

$0%+PUWNCVQT

7ULJJHU

,QSXW

&LUFXLW

&DOLEUDWLRQ

&LUFXLW

#(TQPV

2CPGN$QCTF

&DOLEUDWLRQ

&LUFXLW

$$

)LOWHU2XWSXW

$PSOLILHU

'&2IIVHW

$$

)LOWHU2XWSXW

$PSOLILHU

'&2IIVHW

7ULJ2XWSXW

&LUFXLW

7ULJJHU

2XW

&+

2XWSXW

([W7ULJ

,Q

&+

2XWSXW

)GPGTCVQT%*%*
###

)GPGTCVQT%*
####

)DQ

Figure 3-1: AFG3000 Series block diagram

3-2 AFG3000 Series Arbitrary/Function Generators Service Manual

Platform

Theory of Operation

CPU Board (A72)

Front Panel

CPU Circuit: The CPU Circuit contains an MPU, Flash RAM, and DRAM to

control the instrument. The liquid crystal controller and the USB circuit are
included in the MPU.

Local Regulators: This regulator stabilizes and supplies +3.3 V and +5.0 V for the
logic circuit.

Remote Interface: The A72 board contains a GPIB and LAN driver circuit.

Fan Controller: This circuit controls the speed of the fan.

Primary Circuit: Contains the power switch and the filter circuit.

Signal I/O Circuit: The Reference Clock Input/Output and the Modulation Input

signals are transmitted to the Generator section through this board.

The Front Panel controls a rubber button matrix, LED, a buzzer, and a rotary
encoder.

Power Supply

LCD

Fan

BNC Insulator Board

(A81/ A82)

The power supply module provides +4.3 V, ±15 V, and +5 V to the circuit. This
power supply module accepts the input voltage within the range of 250 VAC from
90 VAC.

The display is a color/monochrome Quarter VGA (320 x 240) STN LCD display.
The high voltage power for LCD is supplied through the inverter. A monochrome
display is used in the AFG3021B.

A 90 mm by 90 mm size, DC 12 V type fan. It is driven by fan controller on the
CPU board.

These boards insulate the I/O signal from the chassis. The A81 board is used for
the rear-panel connectors and the A82 board is used for the front-panel connectors.

AFG3000 Series Arbitrary/Function Generators Service Manual 3-3

Theory of Operation

Generator Section

Generator with Amp Board

(A11/A12/A43)

Isolator: Transmit the serial control signal from the CPU board to the following

circuits with electrical insulation.

Clock Circuit: Generates a 1 GHz high-speed clock necessary for the signal
generation from a 10 MHz reference clock by PLL. This circuit has a function of
selecting the reference signal source as well.

GoC ASIC: GoC (Generator on Chip) ASIC is a CMOS waveform synthesis IC
which includes 2 GS/s DA, Direct Digital Synthesis, waveform SRAM 128 K, x8
MUX, Modulation, Burst and Sweep. So GoC manages most of the generator
section.

Tri g g er C ircu i t : Receives an External Trigger input signal, executes the level
conversion, then supplies the level converted trigger signal to the GoC ASIC.

Pre-Amplifier Circuit: Converts the differential output signal of the GoC to single
ended output, then supplies the single ended output to the Output Amplifier
through the Attenuator.

Output Amplifier: The output of the pre-amplifier is amplified and output. LPF is
used when a sine wave is output.

Trig Out Circuit: Sync Out signal from GoC ASIC is level converted to Trigger Out.

ADC: Modulation by an external source is performed by digitally sampling the

external input from the Ext Modulation Input connector.

Local Regulator: Supplies the necessary +1.8 V, +3.3 V, +15 V, and

On/Off Relay: On/Off of the output signal.

Calibration Circuit: DC Calibration of the output signal is done by a 16 bit AD

Converter.

Generator with Amp Board

(A31/A32/A41/A42)

3-4 AFG3000 Series Arbitrary/Function Generators Service Manual

The A31/A32/A41/A42 boards are the same as the A11/A12 boards except they
have a different Output Amplifier board.

–15 V power.

Theory of Operation

Output Amp Board

(A51/A61)

Output Amplifier: Amplifying the output of the pre-amplifier with the DC offset.

Output Filter: LPF is used when a sine wave is output.

AFG3000 Series Arbitrary/Function Generators Service Manual 3-5

Theory of Operation

3-6 AFG3000 Series Arbitrary/Function Generators Service Manual

Performance Verification

Performance Verification

Two types of Performance Verification procedures can be performed on this
product: Self Tests and Performance Tests. You may not need to perform all of
these procedures, depending on what you want to accomplish.

 To quickly confirm that the AFG3000 Series Arbitrary/Function Generators

are operating properly, complete the Self Tests which begin on page 4-1.

Advantage: These procedures require minimal time to perform, and test the
internal hardware of the AFG3000 Series Arbitrary/Function Generators.

 To further check functionality and proper calibration, first complete the Self

Tests; then complete the Performance Tests beginning on page 4-3.

Advantages: These procedures add direct checking of warranted
specifications. These procedures require suitable test equipment and more time
to execute. (Refer to Table 4-2, “Test equipment,” on page 4)

Self Tests

There are two types of tests in this section that provide a quick way to confirm basic
functionality and proper adjustment:

Diagnostics

 Diagnostics

 Calibration (you must perform this calibration before the performance tests.)

These procedures use internal diagnostics to verify that the instrument passes the
internal circuit tests, and calibration routines to check and adjust the instrument
internal calibration constants.

This procedure uses internal routines to verify that the instrument is operating
correctly.

Equipment required None

Prerequisites

 Power on the instrument and allow a 20 minute warm-up before

doing this procedure.

 The instrument must be operating at an ambient temperature

between +0 °C and +50 °C.

AFG3000 Series Arbitrary/Function Generators Service Manual 4-1

Performance Verification

Do the following steps to run the internal routines that confirm basic functionality
and proper adjustment:

1. Select Diagnostics in the Utility menu:

Utility (front-panel) > -more- (bezel) > Diagnostics/Calibration >
Execute Diagnostics

2. Wait until the test is completed.

3. Verify passing of the diagnostics.

If the diagnostics completes without finding any problems, the message
“PASSED” is displayed.

When an error is detected during diagnostic execution, the instrument displays
an error code. Error codes are described in Error codes on page 6-30.

4. Press any front-panel button to exit the diagnostics.

Calibration

This procedure uses internal routines to verify that the instrument is operating
correctly.

Equipment required None

Prerequisites

 Power on the instrument and allow a 20 minute warm-up before

doing this procedure.

 An ambient temperature is between +20 °C and +30 °C.

Do the following steps to run the internal routines that confirm basic functionality
and proper adjustment:

1. Select Diagnostics in the Utility menu;

Utility (front-panel) > -more- (bezel) > Diagnostics/Calibration >
Execute Calibration

2. Wait until the test is completed.

3. Verify passing of the calibration.

If the calibration completes without any problems, the message “PASSED” is
displayed.

When an error is detected during calibration execution, the instrument displays
an error code. Error codes are described in Error Codes on page 6-30.

4. Press any front-panel button to exit the diagnostics.

4-2 AFG3000 Series Arbitrary/Function Generators Service Manual

Performance Tests

Table 4-1: Performance test items

Performance Verification

NOTE. Do not turn off the power while executing calibration. If the power is turned

off during calibration, data stored in internal nonvolatile memory may be lost.

The Performance Tests include functional tests, such as the interface functional
test, in this manual.

 The Functional Tests verify the functions; they verify that the AFG3000 Series

Arbitrary/Function Generators features operate. They do not verify that they
operate within limits.

 The Performance Tests verify that the AFG3000 Series Arbitrary/Function

Generators performs as warranted. The Performance Tests check all the
characteristics that are designated as checked in Specifications. (The
characteristics that are checked appear with a 4 in Specifications.)

Titles Test items Reference page

Frequency/Period Test Internal clock output frequency accuracy page 4-20

Amplitude Test Amplitude accuracy page 4-21

DC Offset Test Amplitude accuracy page 4-23

AC Flatness Test AC Flatness page 4-26

Harmonic Distortion Test Harmonic Distortion page 4-28

THD (Total Harmonic Distortion) Test Total Harmonic Distortion page 4-30

Spurious Test Spurious page 4-32

Rise-Fall Time Test Rise-Fall Time page 4-35

Performance Conditions

The tests in this section comprise an extensive, valid confirmation of performance
and functionality when the following requirements are met:

 The cabinet covers must be on the AFG3000 Series.

 The instrument must have been performed and passed the procedures under

calibration and diagnostics.

 The instrument must have been calibrated/adjusted at an ambient temperature

between +20 °C and +30 °C.

 The instrument must be operating at an ambient temperature between +0 °C

and +50 °C.

 The instrument must have had a warm-up period of at least 20 minutes.

AFG3000 Series Arbitrary/Function Generators Service Manual 4-3

Performance Verification

Equipment Required

Table 4-2 lists the required equipment used to complete the performance tests.

Table 4-2: Test equipment

Description Minimum requirements Recommended equipment Purpose

1. Digital Multi Meter (DMM) AC volts, true rms, AC coupled
Accuracy:

DC volts
Accuracy: 50 ppm, resolution 100μV

Resistance
Accuracy:

2. Power Meter 100 kHz to 250 MHz
1 μW to 100 mW (–30 dBm to +20 dBm)
Accuracy: 0.02 dB
Resolution: 0.01 dB

3. Power Head 100 kHz to 250 MHz
1 μW to 100 mW (–30 dBm to +20 dBm)

4. Frequency Counter Accuracy: 0.01ppm
Phase measurement

5. Oscilloscope 1 GHz Bandwidth
50 Ω input termination

6. Spectrum Analyzer 20 kHz to 1.25 GHz Tektronix RSA3303A Checks output signals.

7. BNC Coaxial Cable 50 Ω, male to male BNC connector,
91 cm

8. BNC terminator 50 Ω,

9. Attenuator 50 Ω, x10, BNC Tektronix part number

10. Adapter Dual-Banana

Plug

11. Adapter BNC(fe)-N(ma) BNC (female) to N (male) Tektronix part number

BNC (female) to dual banana Tektronix part number

± 0.1% to 1 kHz

± 0.05 Ω

±1Ω, 2W, DC to 1GHz, BNC Tektronix part number

Agilent 3458A Measures voltage. Used in

multiple procedures.

R&S NRVS Measures voltage. Used in

multiple procedures.

R&S NRV-Z5 Measures voltage. Used in

multiple procedures.

Agilent 53132A Checks clock frequency.

Tektronix TDS5104B Checks output signals. Used in

multiple procedures.

Harmonics Spurious.

Tektronix part number
012-0482-00

011-0049-02

011-0059-03

103-0090-00

103-0045-00

Signal interconnection

Signal termination

Signal attenuation

Signal interconnection to a
DMM

Signal interconnection to a
Spectrum Analyzer

4-4 AFG3000 Series Arbitrary/Function Generators Service Manual

Performance Verification

Test Record

Photocopy this test record and use to record the performance test results for your
AFG3000 Series Arbitrary/Function Generators. Excel spreadsheet Test record
with embedded calculation formulas is also available in standard accessory
document CD P/N 063-3828-xx.

AFG3000 Series Performance

Instrument Serial Number: Certificate Number:

Temperature: RH %:

Date of Calibration: Technician:

Test Record

AFG3000 Series Performance Test Record

Minimum

Frequency

Sine at 1.000000 MHz 0.999999 MHz 1.000001 MHz

Pulse at 1.000000 MHz 0.999999 MHz 1.000001 MHz

Amplitude

Test result Maximum

AFG3011 CF = 2 / (1 + 50 Ω / Measurement Ω) =

CH1Amplitude

30.0 mVrms at 1.00 kHz (30.0 × CF – 1.307) mVrms (30.0 × CF + 1.307) mVrms

300.0 mVrms at 1.00 kHz (300.0 × CF – 6.71) mVrms (300.0× CF + 6.71) mVrms

800.0 mVrms at 1.00 kHz (800.0 × CF – 16.71) mVrms (800.0 × CF + 16.71) mVrms

1.500 Vrms at 1.00 kHz (1.500 × CF – 0.0307) Vrms (1.500 × CF + 0.0307) Vrms

2.000 Vrms at 1.00 kHz (2.000 × CF – 0.0407) Vrms (2.000 × CF + 0.0407) Vrms

2.500 Vrms at 1.00 kHz (2.500 × CF – 0.0507) Vrms (2.500 × CF + 0.0507) Vrms

3.500 Vrms at 1.00 kHz (3.500 × CF – 0.0707 Vrms (3.500 × CF + 0.0707) Vrms

AFG3000 Series Arbitrary/Function Generators Service Manual 4-5

Performance Verification

AFG3000 Series Performance Test Record

Minimum

Amplitude

AFG302xB, AFG310x CF = 2 / (1 + 50 Ω / Measurement Ω) =

CH1Amplitude

30.0 mVrms at 1.00 kHz (30.0 × CF – 0.654) mVrms (30.0 × CF + 0.654) mVrms

300.0 mVrms at 1.00 kHz (300.0 × CF – 3.35) mVrms (300.0× CF + 3.35) mVrms

800.0 mVrms at 1.00 kHz (800.0 × CF – 8.35) mVrms (800.0 × CF + 8.35) mVrms

1.500 Vrms at 1.00 kHz (1.500 × CF – 0.0154) Vrms (1.500 × CF + 0.0154) Vrms

2.000 Vrms at 1.00 kHz (2.000 × CF – 0.0204) Vrms (2.000 × CF + 0.0204) Vrms

2.500 Vrms at 1.00 kHz (2.500 × CF – 0.0254) Vrms (2.500 × CF + 0.0254) Vrms

3.500 Vrms at 1.00 kHz (3.500 × CF – 0.0354) Vrms (3.500 × CF + 0.0354) Vrms

CH2 Amplitude

30.0 mVrms at 1.00 kHz (30.0 × CF – 0.654) mVrms (30.0 × CF + 0.654) mVrms

300.0 mVrms at 1.00 kHz (300.0 × CF – 3.35) mVrms (300.0× CF + 3.35) mVrms

800.0 mVrms at 1.00 kHz (800.0 × CF – 8.35) mVrms (800.0 × CF + 8.35) mVrms

1.500 Vrms at 1.00 kHz (1.500 × CF – 0.0154) Vrms (1.500 × CF + 0.0154) Vrms

Test result Maximum

2.000 Vrms at 1.00 kHz (2.000 × CF – 0.0204) Vrms (2.000 × CF + 0.0204) Vrms

2.500 Vrms at 1.00 kHz (2.500 × CF – 0.0254) Vrms (2.500 × CF + 0.0254) Vrms

3.500 Vrms at 1.00 kHz (3.500 × CF – 0.0354) Vrms (3.500 × CF + 0.0354) Vrms

AFG325x CF = 2 / (1 + 50 Ω / Measurement Ω) =

CH1 Amplitude

0.030 Vrms at 1.00 kHz (30.0 × CF – 0.654) mVrms (30.0 × CF + 0.654) mVrms

0.300 Vrms at 1.00 kHz (300.0 × CF – 3.35) mVrms (300.0× CF + 3.35) mVrms

0.800 Vrms at 1.00 kHz (800.0 × CF – 8.35) mVrms (800.0 × CF + 8.35) mVrms

1.500 Vrms at 1.00 kHz (1.500 × CF – 0.0154) Vrms (1.500 × CF + 0.0154) Vrms

CH2 Amplitude

30.0 mVrms at 1.00 kHz (30.0 × CF – 0.654) mVrms (30.0 × CF + 0.654) mVrms

300.0 mVrms at 1.00 kHz (300.0 × CF – 3.35) mVrms (300.0× CF + 3.35) mVrms

800.0 mVrms at 1.00 kHz (800.0 × CF – 8.35) mVrms (800.0 × CF + 8.35) mVrms

1.500 Vrms at 1.00 kHz (1.500 × CF – 0.0154) Vrms (1.500 × CF + 0.0154) Vrms

4-6 AFG3000 Series Arbitrary/Function Generators Service Manual

AFG3000 Series Performance Test Record

Performance Verification

Minimum

DC Offset

AFG3011 CF = 2 / (1 + 50 Ω / Measurement Ω) =

CH1 DC Offset

+5.000 Vdc (+5.000 × CF – 0.110) Vdc (+5.000 × CF + 0.110 Vdc

0.000 Vdc –0.010 Vdc +0.010 Vdc

–5.000 Vdc (–5.000 × CF – 0.110) Vdc (–5.000 × CF + 0.110) Vdc

AFG302xB, AFG310x CF = 2 / (1 + 50 Ω / Measurement Ω) =

CH1 DC Offset

+5.000 Vdc (+5.000 × CF – 0.055) Vdc (+5.000 × CF + 0.055 Vdc

0.000 Vdc –0.005 Vdc +0.005 Vdc

–5.000 Vdc (–5.000 × CF – 0.055) Vdc (-5.000 × CF + 0.055) Vdc

CH2 DC Offset

+5.000 Vdc (+5.000 × CF – 0.055) Vdc (+5.000 × CF + 0.055) Vdc

0.000 Vdc –0.005 Vdc +0.005 Vdc

–5.000 Vdc (–5.000 × CF – 0.055) Vdc (–5.000 × CF + 0.055) Vdc

Test result Maximum

AFG325x CF = 2 / (1 + 50 Ω / Measurement Ω) =

CH1 DC Offset

+2.500 Vdc (+2.500 × CF – 0.030) Vdc (+2.500 × CF + 0.030 Vdc

0.000 Vdc –0.005 Vdc +0.005 Vdc

–2.500 Vdc (–2.500 × CF – 0.030) Vdc (–2.500 × CF + 0.030) Vdc

CH2 DC Offset

+2.500 Vdc (+2.500 × CF – 0.030) Vdc (+2.500 × CF + 0.030) Vdc

0.000 Vdc –0.005 Vdc +0.005 Vdc

–2.500 Vdc (–2.500 × CF – 0.030) Vdc (–2.500 × CF + 0.030) Vdc

AFG3000 Series Arbitrary/Function Generators Service Manual 4-7

Performance Verification

AFG3000 Series Performance Test Record

Minimum

AC Flatness

AFG3011

CH1 AC Flatness

Frequency 100.00 kHz
(Ampl: +4.0 dBm)

Frequency 500.00 kHz Reference – 0.15 dB dB Reference + 0.15 dB

Frequency 1.00 MHz Reference – 0.15 dB dB Reference + 0.15 dB

Frequency 5.00 MHz Reference – 0.30 dB dB Reference + 0.30 dB

Frequency 10.00 MHz Reference – 0.30 dB dB Reference + 0.30 dB

AFG302xB

CH1 AC Flatness

Frequency 100.00 kHz
(Ampl: +4.0 dBm)

Frequency 500.00 kHz Reference – 0.15 dB dB Reference + 0.15 dB

Frequency 1.00 MHz Reference – 0.15 dB dB Reference + 0.15 dB

Frequency 5.00 MHz Reference – 0.30 dB dB Reference + 0.30 dB

---------- dB ( = Reference) ----------

---------- dB ( = Reference) ----------

Test result Maximum

Frequency 15.00 MHz Reference – 0.30 dB dB Reference + 0.30 dB

Frequency 25.00 MHz Reference – 0.50 dB dB Reference + 0.50 dB

CH2 AC Flatness

Frequency 100.00 kHz
(Ampl: +4.0 dBm)

Frequency 500.00 kHz Reference – 0.15 dB dB Reference + 0.15 dB

Frequency 1.00 MHz Reference – 0.15 dB dB Reference + 0.15 dB

Frequency 5.00 MHz Reference – 0.30 dB dB Reference + 0.30 dB

Frequency 15.00 MHz Reference – 0.30 dB dB Reference + 0.30 dB

Frequency 25.00 MHz Reference – 0.50 dB dB Reference + 0.50 dB

---------- dB ( = Reference) ----------

4-8 AFG3000 Series Arbitrary/Function Generators Service Manual

AFG3000 Series Performance Test Record

Performance Verification

Minimum

AC Flatness

AFG310x

CH1 AC Flatness

Frequency 100.00 kHz
(Ampl: +4.0 dBm)

Frequency 1.00 MHz Reference – 0.15 dB dB Reference + 0.15 dB

Frequency 5.00 MHz Reference – 0.30 dB dB Reference + 0.30 dB

Frequency 25.00 MHz Reference – 0.50 dB dB Reference + 0.50 dB

Frequency 50.00 MHz Reference – 0.50 dB dB Reference + 0.50 dB

Frequency 100.0 MHz Reference – 0.50 dB dB Reference + 0.50 dB

CH2 AC Flatness

Frequency 100.00 kHz
(Ampl: +4.0 dBm)

Frequency 1.00 MHz Reference – 0.15 dB dB Reference + 0.15 dB

Frequency 5.00 MHz Reference – 0.30 dB dB Reference + 0.30 dB

Frequency 25.00 MHz Reference – 0.50 dB dB Reference + 0.50 dB

---------- dB( = Reference) ----------

---------- dB( = Reference) ----------

Test result Maximum

Frequency 50.00 MHz Reference – 0.50 dB dB Reference + 0.50 dB

Frequency 100.0 MHz Reference – 0.50 dB dB Reference + 0.50 dB

AFG325x

CH1 AC Flatness

Frequency 100.00 kHz
(Ampl: +4.0 dBm)

Frequency 1.00 MHz Reference – 0.15 dB dB Reference + 0.15 dB

Frequency 5.00 MHz Reference – 0.30 dB dB Reference + 0.30 dB

Frequency 25.00 MHz Reference – 0.50 dB dB Reference + 0.50 dB

Frequency 50.00 MHz Reference – 0.50 dB dB Reference + 0.50 dB

Frequency 100.0 MHz Reference – 1.00 dB dB Reference + 1.00 dB

Frequency 150.00 MHz Reference – 1.00 dB dB Reference + 1.00 dB

Frequency 240.0 MHz Reference – 2.00 dB dB Reference + 2.00 dB

---------- dB( = Reference) ----------

AFG3000 Series Arbitrary/Function Generators Service Manual 4-9

Performance Verification

AFG3000 Series Performance Test Record

Minimum

AC Flatness

CH2 AC Flatness

Frequency 100.00 kHz
(Ampl: +4.0 dBm)

Frequency 1.00 MHz Reference – 0.15 dB dB Reference + 0.15 dB

Frequency 5.00 MHz Reference – 0.30 dB dB Reference + 0.30 dB

Frequency 25.00 MHz Reference – 0.50 dB dB Reference + 0.50 dB

Frequency 50.00 MHz Reference – 0.50 dB dB Reference + 0.50 dB

Frequency 100.0 MHz Reference – 1.00 dB dB Reference + 1.00 dB

Frequency 150.00 MHz Reference – 1.00 dB dB Reference + 1.00 dB

Frequency 250.0 MHz Reference – 2.00 dB dB Reference + 2.00 dB

---------- dB( = Reference) ----------

Test result Maximum

4-10 AFG3000 Series Arbitrary/Function Generators Service Manual

AFG3000 Series Performance Test Record

Performance Verification

Harmonic Distortion Fundamental

= reference

AFG3011 Spectrum Analyzer reading

Sine 20 kHz 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –55 dBc

Sine 100 kHz 100 kHz 200 kHz 300 kHz 400 kHz 500 kHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –55 dBc

Sine 1 MHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –45 dBc

Sine 10 MHz 10 MHz 20 MHz 35 MHz 40 MHz 50 MHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –45 dBc

AFG302xB Spectrum Analyzer reading

Sine 20 kHz 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz

2nd 3rd 4th 5th Limit

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –60 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –60 dBc

Sine 100 kHz 100 kHz 200 kHz 300 kHz 400 kHz 500 kHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –60 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –60 dBc

Sine 1 MHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –50 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –50 dBc

AFG3000 Series Arbitrary/Function Generators Service Manual 4-11

Performance Verification

AFG3000 Series Performance Test Record

Harmonic Distortion Fundamental

= reference

Sine 25MHz 25 MHz 50 MHz 75 MHz 100 MHz 125 MHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –40 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –40 dBc

AFG310x Spectrum Analyzer reading

Sine 1 MHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –50 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –50 dBc

Sine 5 MHz 5 MHz 10 MHz 15 MHz 20 MHz 25 MHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –37 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

2nd 3rd 4th 5th Limit

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –37 dBc

Sine 25MHz 25 MHz 50 MHz 75 MHz 100 MHz 125 MHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –37 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –37 dBc

Sine 100 MHz 100 MHz 200 MHz 300 MHz 400 MHz 500 MHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –37 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –37 dBc

4-12 AFG3000 Series Arbitrary/Function Generators Service Manual

AFG3000 Series Performance Test Record

Performance Verification

Harmonic Distortion Fundamental

= reference

AFG325x Spectrum Analyzer reading

Sine 1 MHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –50 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –50 dBc

Sine 5 MHz 5 MHz 10 MHz 15 MHz 20 MHz 25 MHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –37 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –37 dBc

Sine 100 MHz 100 MHz 200 MHz 300 MHz 400 MHz 500 MHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –30 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

2nd 3rd 4th 5th Limit

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –30 dBc

Sine 240 MHz 240 MHz 480 MHz 720 MHz 960 MHz 1.20 GHz

CH1 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –30 dBc

CH2 Harmonic Distortion dBc dBc dBc dBc dBc

reading – reference 0 dBc dBc dBc dBc dBc Nth – reference < –30 dBc

AFG3000 Series Arbitrary/Function Generators Service Manual 4-13

Performance Verification

THD

C

n

2

n2=

∑

C

1

-----------------------=

THD

C

n

2

n2=

∑

C

1

-----------------------=

AFG3000 Series Performance Test Record

Total Harmonic Distortion (THD)

AFG3xxxx Spectrum Analyzer reading

Fundamental

2nd 3rd 4th 5th 6th 7th

= reference

Sine 20.0 kHz 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz 120 kHz 140 kHz

CH1 reading (dBm) A

reading - reference (A

– A1) (dBc) B1= 0 B2=B

n

= 10

n

Bn/20

C

= A2=A

1

C1= 1 C2=C

=A

3

=B

3

=C

3

=A

4

=B

4

=C

4

=A

5

=B

5

=C

5

=A

6

=B

6

=C

6

=

7

=

7

=

7

Limit

< 0.2%

CH2 reading (dBm) A1= A2= A3= A4= A5= A6= A7=

reading - reference (An – A1) (dBc) B1= 0 B2= B3= B4= B5= B6= B7=

= 10

n

Bn/20

C1= 1 C2= C3= C4= C5= C6= C7=

C

Limit

< 0.2%

4-14 AFG3000 Series Arbitrary/Function Generators Service Manual

AFG3000 Series Performance Test Record

Spurious

AFG3011 Spectrum Analyzer Measurement

Performance Verification

Frequency Center

Frequency

CH1 Spurious

Sine 100 kHz 10 MHz /

300 MHz

Sine 1.00 MHz 10 MHz /

300 MHz

Sine 10.00 MHz 10 MHz /

300 MHz

AFG302xB Spectrum Analyzer Measurement

Frequency Center

Frequency

CH1 Spurious

Sine 100 kHz 10 MHz /

300 MHz

Sine 1.00 MHz 10 MHz /

300 MHz

Sine 10.00 MHz 10 MHz /

300 MHz

Span RBW Spurious Frequency Spurious (Max) Limit

20 MHz /
600 MHz

20 MHz /
600 MHz

20 MHz /
600 MHz

Span RBW Spurious Frequency Spurious (Max) Limit

20 MHz /
600 MHz

20 MHz /
600 MHz

20 MHz /
600 MHz

20 kHz /
20 kHz

20 kHz /
20 kHz

20 kHz /
20 kHz

20 kHz /
20 kHz

20 kHz /
20 kHz

20 kHz /
20 kHz

MHz
MHz

MHz

MHz

MHz
MHz

MHz
MHz

MHz

MHz

MHz
MHz

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

< –60 dBc

< –50 dBc

< –50 dBc

< –60 dBc

< –50 dBc

< –50 dBc

Sine 25.00 MHz 10 MHz /

300 MHz

CH2 Spurious

Sine 100 kHz 10 MHz /

300 MHz

Sine 1.00 MHz 10 MHz /

300 MHz

Sine 10.00 MHz 10 MHz /

300 MHz

Sine 25.00 MHz 10 MHz /

300 MHz

20 MHz /
600 MHz

20 MHz /
600 MHz

20 MHz /
600 MHz

20 MHz /
600 MHz

20 MHz /
600 MHz

20 kHz /
20 kHz

20 kHz /
20 kHz

20 kHz /
20 kHz

20 kHz /
20 kHz

20 kHz /
20 kHz

MHz

MHz

MHz

MHz

MHz

MHz

MHz
MHz

MHz

MHz

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

< –50 dBc

< –60 dBc

< –50 dBc

< –50 dBc

< –50 dBc

AFG3000 Series Arbitrary/Function Generators Service Manual 4-15

Performance Verification

AFG3000 Series Performance Test Record

Spurious

AFG310x Spectrum Analyzer Measurement

Frequency Center

Frequency

CH1 Spurious

Sine 100 kHz 10 MHz

300 MHz

Sine 1.00 MHz 10 MHz

300 MHz

Sine 10.00 MHz 10 MHz

300 MHz

Sine 25.00 MHz 10 MHz

300 MHz

Sine 50.00 MHz 10 MHz

300 MHz

Sine 100.00 MHz 10 MHz

300 MHz

CH2 Spurious

Sine 100 kHz 10 MHz

300 MHz

Sine 1.00 MHz 10 MHz

300 MHz

Span RBW Spurious Frequency Spurious (Max) Limit

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

MHz
MHz

MHz
MHz

MHz
MHz

MHz

MHz

MHz
MHz

MHz
MHz

MHz

MHz

MHz

MHz

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

< –60 dBc

< –50 dBc

< –50 dBc

< –50 dBc

< –44 dBc

< –38 dBc

< –60 dBc

< –50 dBc

Sine 10.00 MHz 10 MHz

300 MHz

Sine 25.00 MHz 10 MHz

300 MHz

Sine 50.00 MHz 10 MHz

300 MHz

Sine 100.00 MHz 10 MHz

300 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

MHz
MHz

MHz

MHz

MHz
MHz

MHz
MHz

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

< –50 dBc

< –50 dBc

< –44 dBc

< –38 dBc

4-16 AFG3000 Series Arbitrary/Function Generators Service Manual

AFG3000 Series Performance Test Record

Spurious

AFG325x Spectrum Analyzer Measurement

Performance Verification

Frequency Center

Frequency

CH1 Spurious

Sine 100 kHz 10 MHz

300 MHz

Sine 1.00 MHz 10 MHz

300 MHz

Sine 10.00 MHz 10 MHz

300 MHz

Sine 25.00 MHz 10 MHz

300 MHz

Sine 50.00 MHz 10 MHz

300 MHz

Sine 100.00 MHz 10 MHz

300 MHz

Sine 200.00 MHz 10 MHz

300 MHz

Sine 240.00 MHz 10 MHz

300 MHz

CH2 Spurious

Span RBW Spurious Frequency Spurious (Max) Limit

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

MHz

MHz

MHz

MHz

MHz
MHz

MHz

MHz

MHz
MHz

MHz
MHz

MHz
MHz

MHz
MHz

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

< –50 dBc

< –47 dBc

< –47 dBc

< –47 dBc

< –41 dBc

< –35 dBc

< –29 dBc

< –28 dBc

Sine 100 kHz 10 MHz

300 MHz

Sine 1.00 MHz 10 MHz

300 MHz

Sine 10.00 MHz 10 MHz

300 MHz

Sine 25.00 MHz 10 MHz

300 MHz

Sine 50.00 MHz 10 MHz

300 MHz

Sine 100.00 MHz 10 MHz

300 MHz

Sine 200.00 MHz 10 MHz

300 MHz

Sine 240.00 MHz 10 MHz

300 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 MHz
600 MHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

MHz
MHz

MHz

MHz

MHz
MHz

MHz

MHz

MHz
MHz

MHz
MHz

MHz
MHz

MHz
MHz

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

< –50 dBc

< –47 dBc

< –47 dBc

< –47 dBc

< –41 dBc

< –35 dBc

< –29 dBc

< –28 dBc

AFG3000 Series Arbitrary/Function Generators Service Manual 4-17

Performance Verification

AFG3000 Series

Performance Test Record

Minimum Test result Maximum

Rise-Fall Time

AFG3011

CH1 Rise Time Amplitude: 1.0 V

Fall Time Amplitude: 1.0 V

Rise Time Amplitude: 10.0 V

Fall Time Amplitude: 10.0 V

pp

pp

pp

pp

- - - - - 50 ns

- - - - - 50 ns

- - - - - 50 ns

- - - - - 50 ns

AFG302xB

CH1 Rise Time Amplitude: 1.0 V

Fall Time Amplitude: 1.0 V

Rise Time Amplitude: 10.0 V

Fall Time Amplitude: 10.0 V

CH2 Rise Time Amplitude: 1.0 V

Fall Time Amplitude: 1.0 V

Rise Time Amplitude: 10.0 V

Fall Time Amplitude: 10.0 V

pp

pp

pp

pp

pp

pp

pp

pp

- - - - - 18 ns

- - - - - 18 ns

- - - - - 18 ns

- - - - - 18 ns

- - - - - 18 ns

- - - - - 18 ns

- - - - - 18 ns

- - - - - 18 ns

AFG310x

CH1 Rise Time Amplitude: 1.0 V

Fall Time Amplitude: 1.0 V

Rise Time Amplitude: 10.0 V

Fall Time Amplitude: 10.0 V

CH2 Rise Time Amplitude: 1.0 V

Fall Time Amplitude: 1.0 V

Rise Time Amplitude: 10.0 V

Fall Time Amplitude: 10.0 V

pp

pp

pp

pp

pp

pp

pp

pp

- - - - - 5 ns

- - - - - 5 ns

- - - - - 5 ns

- - - - - 5 ns

- - - - - 5 ns

- - - - - 5 ns

- - - - - 5 ns

- - - - - 5 ns

4-18 AFG3000 Series Arbitrary/Function Generators Service Manual

AFG3000 Series Performance Test Record

Minimum Test result Maximum

Rise-Fall Time

AFG325x

Performance Verification

CH1 Rise Time Amplitude: 1.0 V

Fall Time Amplitude: 1.0 V

Rise Time Amplitude: 5.0 V

Fall Time Amplitude: 5.0 V

CH2 Rise Time Amplitude: 1.0 V

Fall Time Amplitude: 1.0 V

Rise Time Amplitude: 5.0 V

Fall Time Amplitude: 5.0 V

pp

pp

pp

pp

pp

pp

pp

pp

- - - - - 2.5 ns

- - - - - 2.5 ns

- - - - - 2.5 ns

- - - - - 2.5 ns

- - - - - 2.5 ns

- - - - - 2.5 ns

- - - - - 2.5 ns

- - - - - 2.5 ns

AFG3000 Series Arbitrary/Function Generators Service Manual 4-19

Performance Verification

Frequency counter

50 Ω BNC coaxial cable

CH1 Output

AFG3000 Series

Inputs

Frequency/Period Test

This test verifies the frequency accuracy of the arbitrary/function generator. All
output frequencies are derived from a single generated frequency. Only one
frequency point of channel 1 is required to be checked.

1. Connect the arbitrary/function generator to the frequency counter as shown in

Figure 4-1.

Figure 4-1: Frequency/Period tests

2. Push the Default front-panel button and OK menu button to recall the

arbitrary/function generator default setup.

3. Set up the arbitrary/function generator using the following steps:

Select menu Setting Operation

Function Sine Sine (front)

Frequency 1.000000 MHz Frequency/Period (front)

Amplitude 1.00 Vpp Amplitude/High (front)

Channel 1 Output On On (front)

4. Check that reading of the Frequency Counter is between 0.999999 MHz and

1.000001 MHz.

5. Set up the arbitrary/function generator using the following steps:

Select menu Setting Operation

Function Pulse Pulse (front)

6. Check that reading of the frequency counter is between 0.999999 MHz and

1.000001 MHz.

4-20 AFG3000 Series Arbitrary/Function Generators Service Manual

Amplitude Test

DMM

BNC-Dual banana adapter + 50 Ω terminator

DMM

50 Ω BNC coaxial cable + 50 Ω terminator

CH1 Output

AFG3000 series

BNC-Dual banana
adapter

Performance Verification

This test verifies the amplitude accuracy of the arbitrary/function generator. All
output amplitudes are derived from a combination of attenuators and 3 dB variable
gain. Some amplitude points are checked. This test uses a 50 Ω terminator. It is
necessary to know the accuracy of the 50 Ω terminator in advance of this amplitude
test. This accuracy is used as a calibration factor.

1. Connect the 50 Ω terminator to the DMM as shown in Figure 4-2 and measure

the register value.

Figure 4-2: 50 Ω terminator accuracy

2. Calculate the 50 Ω calibration factor (CF) from the reading value and record

as follows:

CF (Calibration Factor) = 2 / (1 + 50 Ω / Measurement Ω)

Measurement (reading of the DMM) CF

Ω

Examples

50.50 Ω 1.0050 (= 2 / (1 + 50 / 50.50))

49.62 Ω 0.9962 (= 2 / (1 + 50 / 49.62))

3. Connect the arbitrary/function generator to the DMM as shown in Figure 4-3.

Be sure to connect the 50 Ω terminator to the arbitrary/function generator
Output connector side.

Figure 4-3: Amplitude tests

AFG3000 Series Arbitrary/Function Generators Service Manual 4-21

Performance Verification

4. Set up the arbitrary/function generator using the following steps:

Select menu Setting Operation

Function Sine Sine (front)

Frequency 1.000000 kHz Frequency/Period (front)

Amplitude Units V rms

The voltage unit should be
matched to that of DMM.

Amplitude 0.030 Vrms Amplitude/High (front)

Channel 1 Output On On (front)

Top Menu > Amplitude/Level Menu > -more­> Units > V rms

5. Verify that each amplitude measurement is within the range specified in the

following tables.

AFG3011 Measurement Range

Function Frequency Amplitude

Sine 1.000 kHz 30.0 mVrms mVrms (30.0 × CF ± 1.307) mVrms

Sine 1.000 kHz 300.0 mVrms mVrms (300.0 × CF ± 6.71) mVrms

Sine 1.000 kHz 800.0 mVrms mVrms (800.0 × CF ± 16.71) mVrms

Sine 1.000 kHz 1.500 Vrms Vrms (1.500 × CF ± 0.0307) Vrms

Sine 1.000 kHz 2.000 Vrms Vrms (2.000 × CF ± 0.0407) Vrms

Sine 1.000 kHz 2.500 Vrms Vrms (2.500 × CF ± 0.0507) Vrms

Sine 1.000 kHz 3.500 Vrms Vrms (3.500 × CF ± 0.0707) Vrms

AFG302xB and AFG310x Measurement Range

Function Frequency Amplitude

Sine 1.000 kHz 30.0 mVrms mVrms (30.0 × CF ± 0.654) mVrms

Sine 1.000 kHz 300.0 mVrms mVrms (300.0 × CF ± 3.35) mVrms

Sine 1.000 kHz 800.0 mVrms mVrms (800.0 × CF ± 8.35) mVrms

Sine 1.000 kHz 1.500 Vrms Vrms (1.500 × CF ± 0.0154) Vrms

Sine 1.000 kHz 2.000 Vrms Vrms (2.000 × CF ± 0.0204) Vrms

Sine 1.000 kHz 2.500 Vrms Vrms (2.500 × CF ± 0.0254) Vrms

Sine 1.000 kHz 3.500 Vrms Vrms (3.500 × CF ± 0.0354) Vrms

4-22 AFG3000 Series Arbitrary/Function Generators Service Manual

DC Offset Test

DMM

BNC-Dual banana adapter + 50 Ω terminator

Performance Verification

AFG325x Measurement Range

Function Frequency Amplitude

Sine 1.000 kHz 30.0 mVrms mVrms (30.0 × CF ± 0.654) mVrms

Sine 1.000 kHz 300.0 mVrms mVrms (300.0 × CF ± 3.35) mVrms

Sine 1.000 kHz 800.0 mVrms mVrms (800.0 × CF ± 8.35) mVrms

Sine 1.000 kHz 1.500 Vrms Vrms (1.500 × CF ± 0.0154) Vrms

6. (AFG3xx2 only) Repeat steps 3 through 5 for the channel 2 output.

This test verifies the DC offset accuracy of the arbitrary/function generator. This
test uses a 50 Ω terminator. It is necessary to know the accuracy of a 50 Ω
terminator in advance of this test. This accuracy is used for as a calibration factor.

1. Connect the 50 Ω terminator to the DMM as shown in Figure 4-4 and measure

the register value.

Figure 4-4: 50 Ω terminator accuracy

2. Calculate the 50 Ω calibration factor (CF) from the reading value and record

as follows:

CF (Calibration Factor) = 2 / (1 + 50 Ω / Measurement Ω)

Measurement (reading of the DMM) CF

Ω

Examples

50.50 Ω 1.0050 (= 2 / (1 + 50 / 50.50))

49.62 Ω 0.9962 (= 2 / (1 + 50 / 49.62))

AFG3000 Series Arbitrary/Function Generators Service Manual 4-23

Performance Verification

DMM

50 Ω BNC coaxial cable + 50 Ω terminator

CH1 Output

AFG3000 series

BNC-Dual banana
adapter

3. Connect the arbitrary/function generator to the DMM as shown in Figure 4-5.

Be sure to connect the 50 Ω terminator to the arbitrary/function generator
Output connector side.

Figure 4-5: DC offset tests

4. Set up the arbitrary/function generator using the following steps:

Select menu Setting Operation

Function DC More... (front) > More Waveform Menu > DC

Offset + 5.000 V

+ 2.500 V (AFG325x)

Channel 1 Output On On (front)

Offset/Low (front)

5. Verify that each offset measurement is within the range specified in the

following tables.

AFG3011 Measurement Range

Function Offset

DC + 5.000 Vdc Vdc (5.000 × CF ± 0.110) Vdc

DC 0.000 Vdc Vdc ± 0.010 Vdc

DC – 5.000 Vdc Vdc (– 5.000 × CF ± 0.110) Vdc

4-24 AFG3000 Series Arbitrary/Function Generators Service Manual

Performance Verification

AFG302xB and AFG310x Measurement Range

Function Offset

DC + 5.000 Vdc Vdc (5.000 × CF ± 0.055) Vdc

DC 0.000 Vdc Vdc ± 0.005 Vdc

DC – 5.000 Vdc Vdc (– 5.000 × CF ± 0.055) Vdc

AFG3251 and AFG3252 Measurement Range

Function Offset

DC + 2.500 Vdc Vdc (2.500 × CF ± 0.030) Vdc

DC 0.000 Vdc Vdc ± 0.005 Vdc

DC – 2.500 Vdc Vdc (– 2.500 × CF ± 0.030) Vdc

6. (AFG3xx2 only) Repeat steps 3 through 5 for the channel 2 output.

AFG3000 Series Arbitrary/Function Generators Service Manual 4-25

Performance Verification

Power met er

50 Ω BNC coaxial cable

CH1 Output

AFG3000 series

Power head

AC Flatness Test

This test verifies the flatness of a sine wave to 100 kHz sine wave.

1. Connect the arbitrary/function generator to the power meter with a power head

as shown in Figure 4-6.

Figure 4-6: AC flatness tests

2. Set up the arbitrary/function generator using the following steps:

Select menu Setting Operation

Function Sine Sine (front)

Frequency 100.0000 kHz Frequency/Period (front)

Amplitude Units dBm TopMenu > Amplitude/Level Menu > -more- >

Units > dBm

Amplitude + 4.0 dBm Amplitude/High (front)

Channel 1 Output On On (front)

3. Set the frequency of the Power Meter to 100 kHz.

4. Write the Power Meter reading of the 100 kHz sine wave as a reference power

value.

5. Verify that the power measurement at each frequency is within the error

specified in the following tables.

AFG3011 Measurement Range

Function Amplitude Frequency (dB) (dB)

Sine + 4.0 dBm 100.00 kHz = Reference - - - - - -

Sine + 4.0 dBm 500.00 kHz Reference ± 0.15

Sine + 4.0 dBm 1.00 MHz Reference ± 0.15

Sine + 4.0 dBm 5.00 MHz Reference ± 0.30

Sine + 4.0 dBm 10.00 MHz Reference ± 0.30

4-26 AFG3000 Series Arbitrary/Function Generators Service Manual

Performance Verification

AFG302xB Measurement Range

Function Amplitude Frequency (dB) (dB)

Sine + 4.0 dBm 100.00 kHz = Reference - - - - - -

Sine + 4.0 dBm 500.00 kHz Reference ± 0.15

Sine + 4.0 dBm 1.00 MHz Reference ± 0.15

Sine + 4.0 dBm 5.00 MHz Reference ± 0.30

Sine + 4.0 dBm 15.00 MHz Reference ± 0.30

Sine + 4.0 dBm 25.00 MHz Reference ± 0.50

AFG310x Measurement Range

Function Amplitude Frequency (dB) (dB)

Sine + 4.0 dBm 100.00 kHz = Reference - - - - - -

Sine + 4.0 dBm 1.00 MHz Reference ± 0.15

Sine + 4.0 dBm 5.00 MHz Reference ± 0.30

Sine + 4.0 dBm 25.00 MHz Reference ± 0.50

Sine + 4.0 dBm 50.00 MHz Reference ± 0.50

Sine + 4.0 dBm 100.00 MHz Reference ± 0.50

AFG325x Measurement Range

Function Amplitude Frequency (dB) (dB)

Sine + 4.0 dBm 100.00 kHz = Reference - - - - - -

Sine + 4.0 dBm 1.00 MHz Reference ± 0.15

Sine + 4.0 dBm 5.00 MHz Reference ± 0.30

Sine + 4.0 dBm 25.00 MHz Reference ± 0.50

Sine + 4.0 dBm 50.00 MHz Reference ± 0.50

Sine + 4.0 dBm 100.00 MHz Reference ± 1.00

Sine + 4.0 dBm 150.00 MHz Reference ± 1.00

Sine + 4.0 dBm 240.00 MHz Reference ± 2.00

6. (AFG3xx2 only) Repeat steps 3 through 5 for the channel 2 output.

AFG3000 Series Arbitrary/Function Generators Service Manual 4-27

Performance Verification

Spectrum analyzer (WCA280A)

50 Ω BNC coaxial cable

CH1 Output

AFG3000 series

BNC(Fe)-N(Ma) adapter

Harmonics Distortion Test

This test verifies the harmonic distortion using a spectrum analyzer.

1. Connect the arbitrary/function generator to the spectrum analyzer as shown in

Figure 4-7.

Figure 4-7: Harmonic distortion tests

2. Push the Default front-panel button and OK menu button to recall the

arbitrary/function generator default setup.

3. Set up the arbitrary/function generator using the following steps:

Select menu Setting Operation

Function Sine Sine (front)

Frequency 20.00 kHz: AFG3011/AFG302xB

1.000 MHz: AFG310x

1.000 MHz: AFG325x

Amplitude Units Vpp TopMenu > Amplitude/Level Menu >

Amplitude 1.00 Vpp Amplitude/High (front)

Channel 1 Output On On (front)

Frequency/Period (front)

-more- > Units > Vpp

4. Set up the spectrum analyzer according the frequency setup of the

arbitrary/function generator.

5. Set the Ref Level of the spectrum analyzer to 8 dBm.

6. Read the signal level in the Fundamental frequency for each signal. Use this

level as a Reference value in step 4.

7. Verify that the differences between the reference level and the signal level in

the frequency of higher-order at each frequency are below the limit specified
in the following tables.

4-28 AFG3000 Series Arbitrary/Function Generators Service Manual

Performance Verification

8. (AFG3xx2 only) Repeat steps 2 through 7 for the channel 2 output.

AFG3011 Spectrum Analyzer Measurement Limit

Frequency Center

Frequency

20.00 kHz 100 kHz 200 kHz 500 Hz 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz < –55 dBc

100.00 kHz 500 kHz 1 MHz 2 kHz 100 kHz 200 kHz 300 kHz 400 kHz 500 kHz < –55 dBc

1.00 MHz 5.00 MHz 10 MHz 20 kHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz < –45 dBc

10.00 MHz 10 MHz/
50 MHz

AFG302xB Spectrum Analyzer Measurement Limit

Frequency Center

Frequency

20.00 kHz 100 kHz 200 kHz 500 Hz 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz < –60 dBc

100.00 kHz 500 kHz 1 MHz 2 kHz 100 kHz 200 kHz 300 kHz 400 kHz 500 kHz < –60 dBc

1.00 MHz 5.00 MHz 10 MHz 20 kHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz < –50 dBc

25.00 MHz 125 MHz 250 MHz 20 kHz 25 MHz 50 MHz 75 MHz 100 MHz 125 MHz < –40 dBc

AFG310x Spectrum Analyzer Measurement Limit

Span RBW Fundamental

(= Reference)

20 MHz/

100 MHz

Span RBW Fundamental

20 kHz/

20 kHz

10 MHz 20 MHz 30 MHz 40 MHz 50 MHz < –45dBc

(= Reference)

2nd 3rd 4th 5th Nth - Reference

2nd 3rd 4th 5th Nth - Reference

Frequency Center

Frequency

1 MHz 5.00 MHz 10 MHz 20 kHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz < –50 dBc

5 MHz 10 MHz /

25 MHz

25 MHz 125 MHz 250 MHz 20 kHz 25 MHz 50 MHz 75 MHz 100 MHz 125 MHz < –37 dBc

100 MHz 500 MHz 1 GHz 100 kHz 100 MHz 200 MHz 300 MHz 400 MHz 500 MHz < –37 dBc

AFG325x Spectrum Analyzer Measurement Limit

Frequency Center

Frequency

1 MHz 5.00 MHz 10 MHz 20 kHz 1 MHz 2 MHz 3 MHz 4 MHz 5 MHz < –50 dBc

5 MHz 10 MHz /

25 MHz

100 MHz 500 MHz 1 GHz 100 kHz 100 MHz 200 MHz 300 MHz 400 MHz 500 MHz < –30 dBc

240 MHz 625 MHz 1.25 GHz 100 kHz 240 MHz 480 MHz 720 MHz 960 MHz 1.20 GHz < –30 dBc

Span RBW Fundamental

(= Reference)

20 MHz /

50 MHz

Span RBW Fundamental

20 MHz /

50 MHz

20 kHz /

20 kHz

20 kHz /

20 kHz

5 MHz 10 MHz 15 MHz 20 MHz 25 MHz < –37 dBc

(= Reference)

5 MHz 10 MHz 15 MHz 20 MHz 25 MHz < –37 dBc

2nd 3rd 4th 5th Nth - Reference

2nd 3rd 4th 5th Nth - Reference

AFG3000 Series Arbitrary/Function Generators Service Manual 4-29

Performance Verification

Spectrum analyzer (WCA280A)

50 Ω BNC coaxial cable

CH1 Output

AFG3000 series

BNC(Fe)-N(Ma) adapter

THD

C

n

2

n2=

∑

C

1

-----------------------=

Total Harmonic Distortion Test

This test verifies the total harmonic distortion (THD) using a spectrum analyzer.

1. Connect the arbitrary/function generator to the spectrum analyzer as shown in

Figure 4-8.

Figure 4-8: Total Harmonic distortion tests

2. Set up the arbitrary/function generator using the following steps:

Select menu Setting Operation

Function Sine Sine (front)

Frequency 20.00 kHz Frequency/Period (front)

Amplitude Units Vpp TopMenu > Amplitude/Level Menu > -more- >

Units > Vpp

Amplitude 1.00 Vpp Amplitude/High (front)

Channel 1 Output On On (front)

3. Set up the spectrum analyzer according to the following table:

Center Frequency Span RBW

100 kHz 200 kHz 500 Hz

4. Set the Ref Level of the spectrum analyzer to 8 dBm.

5. When the THD cannot be measured directly, it is obtained by using the

following calculation:

4-30 AFG3000 Series Arbitrary/Function Generators Service Manual

Performance Verification

THD

C

n

2

n2=

∑

C

1

-----------------------=

THD

C

n

2

n2=

∑

C

1

-----------------------=

6. Measure and record each level (A

to A7) to the seventh harmonics of the

1

20 kHz sine wave.

7. Calculate the each B

AFG3xxx Measurement

Function Frequency Fundamental

= reference

sine 20.00 kHz 20 kHz 40 kHz 60 kHz 80 kHz 100 kHz 120 kHz 140 kHz

reading (dBm) A

reading – reference

B

= An – A1 (dBc)

n

C

= 10

n

Bn/20

= A2 =A

1

= 0 B2 =B

B

1

C1 = 1 C2 =C

THD =

Sample: reading 1.5 dBm –58.5 dBm –58.5 dBm –63.5 dBm –58.5 dBm –63.5 dBm –63.5 dBm

reading – reference 0 –60 dBm –60 dBm –65 dBm –60 dBm –65 dBm –65 dBm

C

= 1.000 0.001 0.001 0.000562 0.001 0.000562 0.000562

n

2nd 3rd 4th 5th 6th 7th

to B7, C1 to C7 value and the THD.

1

= A4 =A

3

=B

3

=C

3

=B

4

=C

4

=A

5

=B

5

=C

5

=A

6

=B

6

=C

6

=

7

=

7

=

7

Limit

< 0.2%

Limit

0.1987%

< 0.2%

NOTE. When all the harmonic components are –62dBm or less, the calculation of

THD can be skipped because it is THD<0.2%.

8. Verify that the THD is less than 0.2%.

9. (AFG3xx2 only) Repeat steps 2 through 8 for the channel 2 output.

AFG3000 Series Arbitrary/Function Generators Service Manual 4-31

Performance Verification

Spectrum analyzer (WCA280A)

50 Ω BNC coaxial cable

CH1 Output

AFG3000 series

BNC(Fe)-N(Ma) adapter

Spurious Test

This test verifies the spurious using a spectrum analyzer.

1. Connect the arbitrary/function generator to the spectrum analyzer as shown in

Figure 4-9.

Figure 4-9: Spurious tests

2. Set up the arbitrary/function generator using the following steps:

Select menu Setting Operation

Function Sine Sine (front)

Frequency 100.00 kHz Frequency/Period (front)

Amplitude Units Vpp TopMenu > Amplitude/Level Menu > -more- >

Units > Vpp

Amplitude 1.00 Vpp Amplitude/High (front)

Channel 1 Output On On (front)

3. Set the center frequency of the spectrum analyzer to 10 MHz. Other settings

are shown in the following tables.

4. Set the Ref Level of the spectrum analyzer to 8 dBm.

5. Measure the maximum spurious level other than harmonic distortion of 1 V

pp

sine wave in each frequency.

6. Set the center frequency of the spectrum analyzer to 300 MHz. Other settings

are shown in the following tables.

7. Measure the maximum spurious level other than harmonic distortion of 1 V

pp

sine wave in each frequency.

8. Verify that the spurious signal at each frequency is equal to or less than the

limit specified in the following tables.

4-32 AFG3000 Series Arbitrary/Function Generators Service Manual

Performance Verification

9. (AFG3xx2 only) Repeat steps 2 through 8 for the channel 2 output.

AFG3011 Spectrum analyzer Measurement

Frequency Center

Frequency

100.00 kHz 10 MHz
300 MHz

1.00 MHz 10 MHz
300 MHz

10.00 MHz 10 MHz
300 MHz

AFG302xB Spectrum analyzer Measurement

Frequency Center

Frequency

100.00 kHz 10 MHz
300 MHz

1.00 MHz 10 MHz
300 MHz

10.00 MHz 10 MHz
300 MHz

25.00 MHz 10 MHz
300 MHz

Span RBW Spurious

Frequency

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

Span RBW Spurious

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

Frequency

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

MHz
MHz

MHz

MHz

MHz
MHz

MHz
MHz

MHz

MHz

MHz
MHz

MHz

MHz

Spurious

(Max)

dBc
dBc

dBc
dBc

dBc
dBc

Spurious

(Max)

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

Limit

< –60 dBc

< –50 dBc

< –50 dBc

Limit

< –60 dBc

< –50 dBc

< –50 dBc

< –50 dBc

AFG310x Spectrum analyzer Measurement

Frequency Center

Frequency

100.00 kHz 10 MHz
300 MHz

1.00 MHz 10 MHz
300 MHz

10.00 MHz 10 MHz
300 MHz

25.00 MHz 10 MHz
300 MHz

50.00 MHz 10 MHz
300 MHz

100.00 MHz 10 MHz
300 MHz

Span RBW Spurious

Frequency

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

MHz
MHz

MHz

MHz

MHz
MHz

MHz
MHz

MHz

MHz

MHz
MHz

Spurious

(Max)

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

Limit

< –60 dBc

< –50 dBc

< –50 dBc

< –50 dBc

< –44 dBc

< –38 dBc

AFG3000 Series Arbitrary/Function Generators Service Manual 4-33

Performance Verification

AFG325x Spectrum analyzer Measurement

Frequency Center

Frequency

100.00 kHz 10 MHz
300 MHz

1.00 MHz 10 MHz
300 MHz

10.00 MHz 10 MHz
300 MHz

25.00 MHz 10 MHz
300 MHz

50.00 MHz 10 MHz
300 MHz

100.00 MHz 10 MHz
300 MHz

200.00 MHz 10 MHz
300 MHz

240.00 MHz 10 MHz
300 MHz

Span RBW Spurious

Frequency

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 MHz

600 MHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

20 kHz
20 kHz

MHz
MHz

MHz

MHz

MHz
MHz

MHz
MHz

MHz

MHz

MHz
MHz

MHz

MHz

MHz

MHz

Spurious

(Max)

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

dBc
dBc

Limit

< –50 dBc

< –47 dBc

< –47 dBc

< –47 dBc

< –41 dBc

< –35 dBc

< –29 dBc

< –28 dBc

4-34 AFG3000 Series Arbitrary/Function Generators Service Manual

Rise-Fall time Test

Oscilloscope

50 Ω BNC coaxial cable

CH1 Output

AFG3000 series

CH1 Input

Performance Verification

This test verifies the pulse rise time of the arbitrary/function generator.

1. Connect the arbitrary/function generator to the oscilloscope as shown in

Figure 4-10.

Figure 4-10: Rise-Fall time tests

2. Set up the arbitrary/function generator using the following steps:

Select menu Setting Operation

Function Square Square (front)

Frequency 2.00 MHz: AFG3011

10.00 MHz: AFG302xB,
AFG310x, AFG325x

Amplitude Units Vpp TopMenu > Amplitude/Level Menu > -more- >

Amplitude 1.0 Vpp Amplitude/High (front)

Offset 0.0 V TopMenu > Offset/Low (front)

Channel 1 Output On On (front)

Frequency/Period (front)

Units > Vpp

3. Set up the Oscilloscope so the square waveform of 5 division amplitude is

displayed.

AFG3000 Series Arbitrary/Function Generators Service Manual 4-35

Performance Verification

AFG3011 Oscilloscope Measurement

Function Frequency Offset Amplitude Vertical Horizontal Limit

Square 2.00 MHz 0.0 V 1.0 V

Square 2.00 MHz 0.0 V 10.0 V

AFG302xB Oscilloscope Measurement

Function Frequency Offset Amplitude Vertical Horizontal Limit

Square 10.00 MHz 0.0 V 1.0 V

Square 10.00 MHz 0.0 V 10.0 V

4. Verify that the rise/fall time of the square waveform on the oscilloscope at each

amplitude is equal to or less than the limit specified in the following tables. Use

–90% reference level for rise/fall time measurement.

10

pp

pp

with x10 attenuator

pp

pp

with x10 attenuator

200 mV/div 20 ns/div or

25 ns/div

200 mV/div

20 ns/div or

25 ns/div

200 mV/div 5 ns/div ≤ 18 ns

200 mV/div

5 ns/div ≤ 18 ns

≤ 50 ns

≤ 50 ns

AFG310x Oscilloscope Measurement

Function Frequency Offset Amplitude Vertical Horizontal Limit

Square 10.00 MHz 0.0 V 1.0 V

Square 10.00 MHz 0.0 V 10.0 V

pp

pp

200 mV/div 2 ns/div ≤ 5 ns

200 mV/div

2 ns/div ≤ 5 ns

with x10 attenuator

AFG325x Oscilloscope Measurement

Function Frequency Offset Amplitude Vertical Horizontal Limit

Square 10.00 MHz 0.0 V 1.0 V

Square 10.00 MHz 0.0 V 5.0 V

pp

pp

200 mV/div 1 ns/div ≤ 2.5 ns

1.0 V/div 1 ns/div ≤ 2.5 ns

5. (AFG3xx2 only) Repeat steps 2 through 4 for the channel 2 output.

4-36 AFG3000 Series Arbitrary/Function Generators Service Manual

Adjustment Procedures

Adjustment Procedures

This section describes the procedures necessary to manually adjust the AFG3000
Series Arbitrary/Function Generators. Execute each adjustment when you
exchange a circuit board.

Purpose

This procedure returns the arbitrary/function generator to compliance with its
Warranted Characteristics as listed in the Specification section. It can also be used
to optimize the performance of the arbitrary/function generator.

Adjustment Interval

Adjustment After Repair

Table 5-1: Adjustments performed after repair

Adjustment AFG3011 AFG3021B, AFG3022B AFG3101, AFG3102, AFG3251, AFG3252

A72 CPU A43

Reference ClockXXXXX X

LF X X X X X

Flatness XXXXX X X

Spurious X X X

Trigger Delay XXXXX X

Generally, these adjustments should be done every 12 months.

After the removal and replacement of a module due to electrical failure, perform
the adjustment procedure in this section. The table below lists the adjustment items
that should be performed after repair.

Generator

A72 CPU A11, A12

Generator

A72 CPU A31, A32, A41,

A42 Generator

A51, A61 Output

AFG3000 Series Arbitrary/Function Generators Service Manual 5-1

Adjustment Procedures

Equipment Required

Table 5-2 lists the equipment that is required to complete the adjustment procedures.

Table 5-2: Test equipment

Description Minimum requirements Recommended equipment Purpose

1. Digital Multi Meter (DMM) AC volts, true rms, AC coupled
Accuracy:
DC volts
Accuracy: 50 ppm, resolution 100μV
Resistance
Accuracy:

2. Power Meter 100 kHz to 250 MHz
1 μW to 100 mW (–30 dBm to +20 dBm)
Accuracy: 0.02 dB
Resolution: 0.01 dB

3. Power Head 100 kHz to 250 MHz
1 μW to 100 mW (–30 dBm to +20 dBm)

4. Frequency Counter 50 kHz to 5 GHz,
Accuracy: 0.01ppm
Phase measurement

5. Oscilloscope 1 GHz Bandwidth
50 Ω input termination

6. Spectrum Analyzer 20 kHz to 1.25 GHz Tektronix RSA3303A Checks output signals.

7. BNC Coaxial Cable

(2 required)

8. BNC terminator 50 Ω,

9. Adapter Dual-Banana

Plug

10. Adapter BNC(fe)-N(ma) BNC (female) to N (male) Tektronix part number

50 Ω, male to male BNC connector,
91 cm

BNC (female) to dual banana Tektronix part number

± 0.02% to 1 MHz

± 0.05 Ω

±1 Ω, 2 W, DC to 1 GHz, BNC Tektronix part number

Agilent 3458A Measures voltage. Used in

multiple procedures.

R&S NRVS Measures voltage. Used in

multiple procedures.

R&S NRV-Z5 Measures voltage. Used in

multiple procedures.

Agilent 53132A Checks clock frequency.

Tektronix TDS5104B Checks output signals. Used in

multiple procedures.

Harmonics Spurious.

Tektronix part number
012-0482-00

011-0049-02

103-0090-00

103-0045-00

Signal interconnection

Signal termination

Signal interconnection to a
DMM

Signal interconnection to a
Spectrum Analyzer

5-2 AFG3000 Series Arbitrary/Function Generators Service Manual

Performance Conditions

The adjustments in this section are an extensive, valid confirmation of performance
and functionality when the following requirements are met:

 The cabinet covers must be on the AFG3000 Series.

 The instrument must have been calibrated/adjusted at an ambient temperature

 The instrument must have had a warm-up period of at least 20 minutes.

Enable the Service Mode

You must enable the service mode to perform the adjustment procedure. Do the
following steps to enter the service mode:

1. Push the power button to power on the arbitrary/function generator.

2. After the beep, push the front-panel Recall button, and then push the

between +20

front-panel 7 numeric button.

°C and +30 °C.

Adjustment Procedures

Save Menu

Clear CAL Data Menu

3. Keep pushing these buttons until the power-on screen is displayed.

4. Release the buttons when the top screen is displayed.

5. Check whether the service mode is available by pushing the Utility >

-more- > -more- buttons. Service Menu is displayed in the third page of Utility

menu.

You can adjust the Reference Clock, LF, Flatness, Spurious, and Trigger Delay
parameters on the Manual Calibration that is described in this section. Each of
changed parameters is stored in non-volatile memory of the arbitrary/function
generator after you push the Save menu in the first page of Manual Calibration.
Previous adjustment parameters will be recalled after a power cycle unless you
push the Save menu button.

The Clear CAL Data menu in the second page of Manual Calibration clears all the
current adjustment parameters and sets them to 0. But unless you push the Save
menu button, the previous adjustment parameters will be recalled after a power
cycle.

AFG3000 Series Arbitrary/Function Generators Service Manual 5-3

Adjustment Procedures

Frequency counter

50 Ω BNC coaxial cable

CH1 Output

AFG3000 series

Inputs

Reference Clock

This procedure adjusts the frequency accuracy of the arbitrary/function generator.
For any model, only one frequency point of channel 1 is adjusted.

1. Connect the arbitrary/function generator to the frequency counter as shown in

Figure 5-1.

Figure 5-1: Reference Clock adjustment

2. Push the Default front-panel button and OK menu button to recall the

arbitrary/function generator default setup.

3. Set up the arbitrary/function generator using the following steps:

Select menu Setting Operation

Function Sine Sine (front)

Frequency 1.000000 MHz Frequency/Period (front)

Amplitude 1.00 Vpp Amplitude/High (front)

Channel 1 Output On On (front)

4. Push the Utility > -more- > -more- > Service Menu >
Manual Calibration > -more- > Reference Clock buttons. Ref Clock value

is selected.

5. Adjust the Ref Clock value with the rotary knob so that the frequency counter
reading is between 0.999999 MHz and 1.000001 MHz.

6. Push the Save menu button to save the adjusted value.

5-4 AFG3000 Series Arbitrary/Function Generators Service Manual