Tektronix DTG5078, DTG5274, DTG5334 Reference manual

Technical Reference

DTG5078 & DTG5274 & DTG5334
Data Timing Generators
Performance Verification & Specifications

071-1611-01

This document applies to firmware version 2.0.0
and above.

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
supercedes 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 2

Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1)
year from the date of shipment. If any such 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. P arts, modules and replacement products used by T ektronix 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, with shipping charges
prepaid. 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

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

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Manual Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Related Manuals and Online Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Performance Verification

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

Conventions in this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Self Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

DTG5000 Series Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Mainframe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

Output Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-80

Specifications

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Product and Feature Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Electrical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Mainframe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Output Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Output Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32

Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference i

Table of Contents

ii DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

List of Figures

List of Figures

Figure 1-1: Diagnostics dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Figure 1-2: Level Calibration dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Figure 1-3: Skew Calibration dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Figure 1-4: Skew Calibration results screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Figure 1-5: Open Setup dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Figure 1-6: Sync output tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30

Figure 1-7: Internal Clock Frequency tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

Figure 1-8: External Clock Output tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34

Figure 1-9: External Clock Input tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37

Figure 1-10: 10 MHz Reference Input tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-39

Figure 1-11: 10 MHz Reference Output tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41

Figure 1-12: Phase Lock Input tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42

Figure 1-13: Internal Trigger tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44

Figure 1-14: Event Input and Sequence tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-49

Figure 1-15: Data pattern example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-50

Figure 1-16: Jitter Generation tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53

Figure 1-17: Jitter Generation example (all) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-54

Figure 1-18: Jitter Generation example (partial) . . . . . . . . . . . . . . . . . . . . . . . . . 1-56

Figure 1-19: DC Output tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-57

Figure 1-20: Delay timing tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-59

Figure 1-21: Clock out random jitter tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-63

Figure 1-22: Clock out random jitter samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-65

Figure 1-23: Random jitter tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-66

Figure 1-24: Random jitter waveform samples . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-68

Figure 1-25: Total jitter waveform samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-71

Figure 1-26: PG Mode tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-73

Figure 1-27: Master–Slave operation tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-76

Figure 1-28: DTG5000 Configuration Utility dialog box . . . . . . . . . . . . . . . . . . . 1-77

Figure 1-29: Master-Slave operation waveform sample . . . . . . . . . . . . . . . . . . . . 1-78

Figure 1-30: Data output DC level tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-81

Figure 1-31: Data format tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-86

Figure 1-32: Pulse pattern example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-87

Figure 1-33: RZ waveform example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-88

Figure 1-34: R1 waveform example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-88

Figure 1-35: Jitter Control Input tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-90

Figure 1-36: Jitter Generation example (DTGM31) . . . . . . . . . . . . . . . . . . . . . . . 1-91

Figure 1-37: Jitter Generation example (DTGM32 Range 2 ns) . . . . . . . . . . . . . 1-92

Figure 1-38: Jitter Generation example (DTGM32 Range 1 ns) . . . . . . . . . . . . . 1-92

Figure 1-39: Inhibit Input tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-94

Figure 2-1: DC Output channel assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Figure 2-2: Frequency response of clock output (at 0.5 Vp-p) . . . . . . . . . . . . . . . . 2-9

Figure 2-3: Frequency response of clock output (at 1.0 Vp-p) . . . . . . . . . . . . . . . 2-10

Figure 2-4: Signal timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Figure 2-5: DTG5078 Master-Slave connection . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Figure 2-6: DTG5274/DTG5334 Master-Slave connection . . . . . . . . . . . . . . . . . 2-18

Figure 2-7: Channel addition function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference iii

List of Figures

Figure 2-8: The definitions of Lead/Trail Delay and Pulse Width . . . . . . . . . . . 2-26

Figure 2-9: Maximum Lead Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

Figure 2-10: Output voltage window and clock out

(DTGM30, DTGM31, DTGM32) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41

Figure 2-11: Equivalent circuit (DTGM10, DTGM20, DTGM21 outputs) . . . . 2-41

Figure 2-12: Equivalent circuit (DTGM30, DTGM31, DTGM32 outputs) . . . . 2-42

Figure 2-13: Input amplitude vs Jitter amplitude (DTGM31) . . . . . . . . . . . . . . . 2-42

Figure 2-14: Data rate vs Maximum jitter amplitude (DTGM31) . . . . . . . . . . . 2-43

Figure 2-15: Input frequency vs Jitter amplitude (DTGM31) . . . . . . . . . . . . . . . 2-43

Figure 2-16: Input amplitude vs Jitter amplitude (DTGM32) . . . . . . . . . . . . . . . 2-44

Figure 2-17: Input frequency vs Jitter amplitude (DTGM32) . . . . . . . . . . . . . . . 2-44

iv DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

List of Tables

List of Tables

Table 1-1: Performance test items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Table 1-2: Test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Table 1-3: Performance check files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Table 1-4: DTGM10 High Level Voltage Accuracy . . . . . . . . . . . . . . . . . . . . . . . 1-82

Table 1-5: DTGM10 Low Level Voltage Accuracy . . . . . . . . . . . . . . . . . . . . . . . 1-82

Table 1-6: DTGM20 High Level Voltage Accuracy . . . . . . . . . . . . . . . . . . . . . . . 1-83

Table 1-7: DTGM20 Low Level Voltage Accuracy . . . . . . . . . . . . . . . . . . . . . . . 1-83

Table 1-8: DTGM21 High Level Voltage Accuracy

(Output Impedance 50 ohm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-83

Table 1-9: DTGM21 Low Level Voltage Accuracy

(Output Impedance 50 ohm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-83

Table 1-10: DTGM21 High Level Voltage Accuracy

(Output Impedance 23 ohm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-84

Table 1-11: DTGM21 Low Level Voltage Accuracy

(Output Impedance 23 ohm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-84

Table 1-12: DTGM30/DTGM31/DTGM32 High Level Voltage Accuracy . . . . 1-85

Table 1-13: DTGM30/DTGM31/DTGM32 Low Level Voltage Accuracy . . . . 1-85

Table 2-1: DTG5000 Series Data Timing Generators (Mainframe) . . . . . . . . . . 2-2

Table 2-2: DTG5000 Series Data Timing Generators (Output Module) . . . . . . . 2-3

Table 2-3: Operation mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Table 2-4: Sequencer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Table 2-5: Clock Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Table 2-6: Internal Trigger Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Table 2-7: DC Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Table 2-8: Clock Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Table 2-9: External Clock In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Table 2-10: 10 MHz Reference In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Table 2-11: 10 MHz Reference Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Table 2-12: Phase Lock In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Table 2-13: Skew Cal In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Table 2-14: Trigger In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Table 2-15: Sync Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Table 2-16: Sync Clock In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Table 2-17: Sync Clock Out 1, Out 2 and Out 3 . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Table 2-18: Sync Jump In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Table 2-19: Sync Jump Out 1, Out 2 and Out 3 . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Table 2-20: Event In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Table 2-21: CPU module and peripheral devices . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Table 2-22: Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Table 2-23: DG Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Table 2-24: Clock Range in NRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Table 2-25: Clock Range in RZ/R1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

Table 2-26: Delay Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

Table 2-27: Lead Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

Table 2-28: Trail Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

Table 2-29: Jitter Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference v

List of Tables

Table 2-30: PG Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

Table 2-31: DTGM10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32

Table 2-32: DTGM20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

Table 2-33: DTGM30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34

Table 2-34: DTGM21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35

Table 2-35: DTGM31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37

Table 2-36: DTGM32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39

Table 2-37: Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45

Table 2-38: Installation requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46

Table 2-39: Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46

Table 2-40: Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47

Table 2-41: Certifications and compliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48

Table 2-42: Installation category and Pollution degree . . . . . . . . . . . . . . . . . . . . 2-49

vi DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

General Safety Summary

Review the follo wing safety precautions to a void injury and prev ent 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 p roduct is grounded thro ugh the grounding con ductor 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. T o a void 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.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference vii

General Safety Summary

Symbols and Terms

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

WARNING. W arning statements identify conditions or practices that could r esult in

injury or loss of life.

CAUTION. Caution statements identify conditions or pr actices 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:

WARNING
High Voltage

Protective Ground

(Earth) Terminal

CAUTION

Refer to Manual

Double

Insulated

viii DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Preface

This manual provides information necessary for users or service technicians to
verify the performance of the DTG5000 Series Data Timing Generator.

Manual Structure

The DTG5000 Series Data Timing Generator Technical Reference contains the
following sections:

The Performance V erification section contains an introduction, a list of equipment
required, and procedures that, when passed, ensure that the product meets its
specifications.

The Specifications section contains a brief product description and characteristics
tables. These tables cover the electrical, mechanical, environmental characteristics
and certification.

Related Manuals and Online Documents

This manual is part of a document set of standard accessory manuals and online
documentation; this manual mainly focuses on the performance verification and
specifications information needed to verify the product performance. See the
following list for other documents supporting the data timing generator operation
and service.

Document name Description

DTG5000 Series Online Help An online help system, integrated with the user interface application that ships with this

product. The help is preinstalled in the instrument.

DTG5000 Series User Manual 1 A quick reference to major features of the instrument and how they operate. It also provides

several tutorials to familiarize the user with basic instrument features.

DTG5000 Series User Manual 2
(a PDF file on the Document CD)

DTG5000 Series Programmer
(a PDF file on the Document CD)

DTG5000 Series Service Manual Instructions for servicing the instrument to the module level. This optional manual must be

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference ix

A comprehensive guide to instrument operation, function, and menus.

Complete information on programming commands and remote control of the instrument.

ordered separately.

Preface

x DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Performance Verification

Two types of Performance Verification procedures can be performed on this
product: Self Tests and P erformance Tests. You may not need to perform all of these

procedures, depending on what you want to accomplish.

 Verify that the DTG5000 Series Data Timing Generator is operating correctly

by running the Self Tests, which begin on page 1-3.
Advantages: These procedures require minimal time to perform, and test the

internal hardware of the DTG5000 Series Data Timing Generator.

 If a more extensive confirmation of performance is desired, complete the self

tests, and then do the Performance Tests beginning on page 1-10.
Advantages: These procedures add direct checking of warranted

specifications. These procedures require suitable test equipment and more time
to execute. (Refer to Equipment Required on page 1-11).

Conventions in this manual

Throughout these procedures the following conventions apply:

 Each test procedure uses the following general format:

Title of Test
Equipment Required
Prerequisites
Procedure

 Each procedure consists of as many steps, substeps, and subparts as required

to do the test. Steps, substeps, and subparts are sequenced as follows:

1. First Step
a. First Substep

 First Subpart
 Second Subpart

b. Second Substep

2. Second Step

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-1

Performance Verification

 Where instructed to use a control in the display or a front-panel button or knob,

the name of the control, button or knob appears in boldface type.

Menu Selections

User Manual

Install the Output Modules

Instructions for menu selection use the following format:
Menu button → Left or right Allow button (by using this button, you can move

to desired menu category) → Upper or down Allow button (by using this button,
you can move to desired menu item) → SELECT or Enter key (this completes the
selection).

You can use a mouse as a pointer, use keyboard shortcuts for quick operation, or
use front panel knob instead of sticking to above menu selection format.

The DTG5078 & DTG5274 & DTG5334 Data Timing Generators Quick Start
Manual is strongly recommended to f amiliarize the first-time user with instrument
controls and features.

Any output modules ordered are shipped separately. For complete instructions on
how to install the output modules, refer to the User Manual. (Output modules do
not ship preinstalled.)

CAUTION. Do not install or remove any output modules while the instrument is

powered on.
Always power the instrument down before attempting to remove or install any

output module.

1-2 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Self Tests

Performance Verification

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

 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.

NOTE. To perform the Self Tests, at least one o utput module (DTGM10, DTGM20,

DTGM21, DTGM30, DTGM31, or DTGM32) must be installed in the DTG5000
series Data Timing Generator mainframe. You can select any slot when you
perform the tests even though the descriptions below are assuming the Slot A is
used.

Diagnostics

This procedure uses internal routines to verify that the instrument is operating
correctly. No test equipment or hookups are required.

The instrument automatically performs the internal diagnostics when powered on;
you can also run the internal diagnostics using the menu selections described in this
procedure. The difference between these two methods of initiating the diagnostics
is that the menu method does a more detailed memory check than the power–on
method.

Do the following steps to run the internal routines that conf irm basic functionality
and proper adjustment.

Equipment
required

Prerequisites

None

First, at least one output module must be installed properly in the
mainframe.

Second, power on the instrument and allow a twenty-minute warmup
before doing this procedure.

1. Set up the instrument:

 Confirm that there is no output being performed by v erifying that the RUN

button indicator is not on. If the indicator is on, push the RUN button to
turn it off.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-3

Performance Verification

 Verify that the output module LEDs are not on. If any output module LEDs

are on, push the ALL OUTPUTS ON/OFF button to turn the LEDs off.

2. Internal diagnostics: Perform these substeps to verify internal diagnostics.
a. Display the Diagnostics dialog box:

 From the application menu bar, select System, and then select

Diagnostics.... The following dialog box appears if you ha ve changed

the settings

 Select OK to display the Diagnostics dialog box. See Figure 1-1.

Figure 1-1: Diagnostics dialog box

 Verify that the Loop until Fail box is not checked. If it is checked,

click the box to remove the check mark.

 Select Execute All It em s to start the diagnostics.

1-4 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

b. Wait: The internal diagnostics takes one to six minutes. When complete,

the resulting status appears in the diagnostics control window.

c. Verify that no failures are found and reported: All tests should pass.

Confirm that the word Pass appears in all the Status fields. If any failures
occur, record the failure information and contact your local Tektronix
service personnel for more information.

3. Select Close to exit the diagnostics.

Calibration

Two types of calibrations are provided in the DTG5000 Series Data Timing
Generator.

 The Level Calibration uses internal calibration routines that check electrical

characteristics such as DC accuracy of data output, and then adjust the internal
calibration constants as necessary.

 The Skew Calibratio n checks the delay time of data output, and then adjust the

internal calibration constants as necessary. The calibration is performed by
connecting each channel output to Skew Cal In.

NOTE. Level Calibration and Skew Calibration are not valid until the instrument

reaches a valid temp erature .

Level Calibration.

Equipment
required

Prerequisites

None

Power on the instrument and allow a 20 minute warmup at an ambient

temperature between +20 °C and +30 °C before doing this procedure.

The calibration routine must be performed whenever the ambient

temperature changes by 5 °C or more.

1. Set up the instrument:

 Confirm that there is no output being performed by v erifying that the RUN

button indicator is not on. If the indicator is on, push the RUN button to
turn it off.

 Verify that the output module LEDs are not on. If any output module LEDs

are on, push the ALL OUTPUTS ON/OFF button to turn the LEDs off.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-5

Performance Verification

2. Perform the calibration suite:
a. From the application menu bar, select System, and then select Level

Calibration.... The Level Calibration dialog box appears. See Figure 1-2.

Figure 1-2: Level Calibration dialog box

b. Select Execute.
c. All the Status fields must be Pass. If any failures occur, record the failure

information and contact your local Tektronix service personnel for more
information.

3. Select Close to exit the calibration.

1-6 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Skew Calibration.

W SMA coaxial cable, Tektronix part number 174-1427-00 Refer

Equipment
required

Prerequisites

One 50
to test equipment list on page 1-12.

Power on the instrument and allow a 20 minute warmup at an ambient

temperature between +20 °C and +30 °C before doing this procedure.

The calibration routine must be performed whenever the ambient

temperature changes by 5 °C or more.

1. Set up the instrument:

 Confirm that there is no output being performed by v erifying that the RUN

button indicator is not on. If the indicator is on, push the RUN button to
turn it off.

 Verify that the output module LEDs are not on. If any output module LEDs

are on, push the ALL OUTPUTS ON/OFF button to turn the LEDs off.

2. Perform the calibration suite:

a. From the application menu bar, select System, and then select Skew

Calibration. The following dialog box appears if you have changed the
settings. Click OK.

b. The Skew Calibration dialog box appears. See Figure 1-3.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-7

Performance Verification

Figure 1-3: Skew Calibration dialog box

c. Attach an SMA coaxial cable to the SKEW CAL IN at the front panel of

the data timing generator mainframe.

d. Select Execute to display the dialog box shown below.

e. Connect the opposite end of the SMA coaxial cable to the CH1 connector

of output module and select OK to start the calibration. Wait until the
calibration completes.

f. Follow the on-screen instruction to continue the calibration:

 Disconnect the cable from the channel and reconnect it to next

channel.

1-8 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

 Repeat the same calibration procedure for all channels.

NOTE. When you connect the output module and Skew Cal In, use the identical

cable. If you use different cables, the calibration result may be affected.

g. When complete, the resulting status appears on the screen. See Figure 1-4.

Figure 1-4: Skew Calibration results screen

h. Verify that no failures are found and reported on the screen.
i. If any failures occur, record the failure information and contact your local

Tektronix service personnel for more information.

3. Select Close to exit the calibration.

NOTE. The calibration data in the memory may be lost if the instrument is powered

off while the calibration is executed.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-9

Performance Verification

Performance Tests

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

 The Functional Tests v erify the functions, that is, they verify that the DTG5000

Series Data Timing Generator features operate. They do not verify that they
operate within limits.

 The Performance Tests verify that the DTG5000 Series Data Timing

Generator 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 ✔ in Specifications.)

Table 1-1: Performance test items

Titles Test items Reference page

DTG5000 series mainframe

Sync output Output level page 1-29

Internal clock frequency Internal clock output frequency accuracy page 1-32

External clock output External clock output amplitude, rise time/ fall time, and aberration page 1-34

External clock input External clock input function and external clock input frequency accuracy page 1-36

10 MHz reference input 10 MHz reference input function page 1-39

10 MHz reference output 10 MHz reference output frequency and output level page 1-40

Phase lock input Phase lock input function page 1-42

Internal automatic trigger Internal auto trigger function page 1-44

Trigger input Trigger input function

Event input and sequence function Event input function, jump out function for master-slave operation, and

All jitter generation Jitter profile and jitter volume page 1-53

Partial jitter generation Jitter profile and jitter volume page 1-55

DC output DC output accuracy page 1-57

Skew and delay timing Skew time between channels (after skew calibration) page 1-59

Clock out random jitter Clock out random jitter page 1-63

Random jitter Random jitter page 1-66

Total jitter Total jitter page 1-69

PG Mode Frequency, Duty, and Mode page 1-72

Master-Slave operation Master-Slave operation page 1-75

1

page 1-48

sequence operation

1-10 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Table 1-1: Performance test items (cont.)

Titles Test items Reference page

Output module

Data output DC level Output level accuracy page 1-80

Data format NRZ, RZ, and NRI page 1-86

Jitter input Jitter control page 1-89

Inhibit input Inhibit control page 1-93

1

At least one output module, which operates correctly, must be installed into the DTG5000 series mainframe slot

when you execute the performance tests.

Prerequisites

The tests in this section comprise an extensive, v alid conf irmation of performance
and functionality when the following requirements are met:

 The cabinet must be installed on the instrument.
 Allow 20 minutes warm up period.
 You must have performed and passed the procedures under Self Tests, found

on page 1-3.

 The data timing generator must have been last adjusted at an ambient

temperature between +20 °C and +30 °C, and must have been operating for a
warm-up period of at least 20 minutes.

 The Performance Tests must be executed at an ambient temperature between

+10 °C and +40 °C.

Required Equipment

Table 1-2 lists the required equipment used to complete the performance tests.

Table 1-2: Test equipment

Item number and
description Minimum requirements

1. Frequency Counter 50 kHz to 5 GHz,
Accuracy:

2. Digital Multi Meter DC volts range: – 10 V to +10 V,
Accuracy:

3. Oscilloscope Bandwidth:

channel: >4, 1 MΩ and 50 Ω inputs

4. Sampling Oscilloscope Bandwidth:
Rise time:

5. Function Generator Output voltage: –5 V to +5 V,
Frequency accuracy:

<0.2 ppm

±1%

>1 GHz, Number of

>20 GHz,

<17.5 ps, 50 Ω input

<0.01%

Recommended equipment
or equivalent Purpose

Agilent 53181A op.050/010 Checks clock frequency.

Fluke 175 Measures voltage. Used in

multiple procedures.

Tektronix TDS7154 Checks output signals. Used in

multiple procedures.

Tektronix CSA8000B,

2

80E03

Tektronix AFG320 Generates external input

Checks output signals. Used in
multiple procedures.

signals. Used in multiple input
signal test procedures.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-11

Performance Verification

Table 1-2: Test equipment (cont.)

Item number and
description Minimum requirements

6. SMA Coaxial Cable

50 Ω, male to male SMA connector Tektronix part number

(3 required)

7. BNC Coaxial Cable

50 Ω, male to male BNC connector Tektronix part number

(3 required)

8. Adapter

SMA (male) to BNC (female), 50 Ω Tektronix part number

(2 required)

9. Adapter (2 required) SMA (female) to BNC (male), 50 Ω Tektronix part number

Recommended equipment
or equivalent Purpose

Signal interconnection

174-1427-00

Signal interconnection

012-0076-00

Signal interconnection

015-0554-00

Signal interconnection

015-0572-00

10. Adapter N (male) to SMA (male), 50 Ω Tektronix part number

Signal interconnection

015-0369-00

11. Adapter SMA (female) to SMA (female), 50 Ω Tektronix part number

Signal interconnection

015-1012-00

12. Lead set for DC output 16-CON twisted pair, 60 cm (24 in) Tektronix part number

Signal interconnection

012-A229-00

13. Dual-Banana Plug BNC (female) to dual banana Tektronix part number

Signal interconnection

103-0090-00

14. BNC-T Connector BNC (male) to BNC (female) to BNC
(female)

15. Feed-through

50 Ω, 0.1 %, BNC Tektronix part number

Termination

16. SMA Termination 50 Ω, SMA Tektronix part number

Tektronix part number
103-0030-00

011-0129-00

Signal interconnection

Signal termination

Signal termination

015-0706-00

17. Attenuator (2 required)

18. SMB-BNC Cable SMB (female) to BNC (male) connector Tektronix part number

12 dB, SMA --- Signal attenuation

Signal interconnection

012-1459-00

19. DTG5000 series

mainframe

DTG5078 Four channel performance

tests for
DTGM10/DTGM20/DTGM21

20. DTG5000 series output

module

21. DTG5000 series output

module

DTGM20 or DTGM21 Random Jitter and Total Jitter

tests for DTG5078

DTGM30 Random Jitter and Total Jitter

tests for DTG5274 and
DTG5334

2

For best repeatability and to prolong the life of both connectors, use a torque wrench (5/16 in) and tighten the

connection to the range of 7-10 lb-in (79-112 N-cm) when you connect an SMA cable to a sampling module. For
more information, refer to your sampling module user manual

CAUTION. Sampling modules are inherently vulnerable to static damage. Always

observe static-safe procedures and cautions as outlined in the sampling module
user manual.

1-12 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Loading Files

The following steps explain how to load files from the DTG5000 Series Data
Timing Generator.

1. From the application menu bar, select File, and then select Open Setup. The

Open Setup dialog box appears. See Figure 1-5.

2. Specify C:\Program Files\Tektronix\DTG5000\PV\DTG5078
(or C: \Program Files\Tektronix\DTG5000\PV\DTG5274 or
C:\Program Files\Tektronix\DTG5000\PV\DTG5334) to Look in field.

Figure 1-5: Open Setup dialog box

3. Select the necessary file in the File name:, and then click Open.

4. The Open Setup dialog box automatically disappears, and then the selected

waveform and sequence file are loaded.
If your data timing generator mainframe is not equipped with maximum output

module configuration, the following dialog box appears.

5. Click OK to complete the instrument setup.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-13

Performance Verification

Performance Check Files

Table 1-3 lists the setup files on the internal hard disk drive that are used in these
performance tests. A specified file must be loaded each time you execute
Performance Test procedure. Test pattern data and setup information are included
in the file.

Table 1-3: Performance check files

No. File name Clock frequency Test item

1 SYNCOUT.dtg Internal: 10 MHz Sync output

2 INTCLK.dtg Internal: 100 MHz Internal clock frequency

3 CLKOUT.dtg Internal: 10 MHz External clock output

4 CLKIN.dtg External clock: 10 MHz External clock input

5 REFIN.dtg External reference: 100 MHz 10 MHz reference

6 PLL.dtg External PLL: 10 MHz Phase lock input

7 TRIG.dtg Internal: 3.35 GHz (DTG5334)

Internal: 2.7 GHz (DTG5274)
Internal: 750 MHz (DTG5078)

8 EVENT.dtg Internal: 3.35 GHz (DTG5334)

Internal: 2.7 GHz (DTG5274)
Internal: 750 MHz (DTG5078)

9 JITGEN_INTER.dtg Internal: 100 MHz Total jitter

10 JITGEN_PARA.dtg Internal: 100 MHz Partial jitter

11 DCOUT.dtg

12 REFOUT.dtg Internal: 100 MHz 10 MHz reference output

13 DELAY.dtg

14 PGMODE.dtg Internal: 100 MHz PG mode

15 OM_H.dtg

16 OM_L.dtg

17 FORMAT.dtg Internal: 10 MHz Data format

18 MASTER.dtg Internal: 20 MHz Master-Slave operation

19 RNDJIT.dtg Random jitter

20 TOTJIT.dtg Total jitter

21 JITIN.dtg Internal: 100 MHz Jitter input

22 INHIBIT.dtg Internal: 100 MHz Inhibit control

Trigger input

Event input and sequential function

1-14 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

DTG5000 Series Test Record

Photocopy this test record and use to record the performance test results for your
DTG5000 Series Data Timing Generator.

DTG5000 Series Test Record

Instrument Serial Number: Cer tificate Number:

Temperature: RH %:

Date of Calibration: Technician:

DTG5000 Series Diagnostics and Calibration

Diagnostics Minimum Incoming Outgoing Maximum

Register Pass/Fail ---------- ---------- Pass/Fail

Clock Pass/Fail ---------- ---------- Pass/Fail

Sequence Memory Pass/Fail ---------- ---------- Pass/Fail

Pattern Memory Pass/Fail ---------- ---------- Pass/Fail

Calibration Minimum Incoming Outgoing Maximum

Level Calibration Pass/Fail ---------- ---------- Pass/Fail

Skew Calibration Pass/Fail ---------- ---------- Pass/Fail

DTG5000 series Performance Verification

Mainframe Minimum Incoming Outgoing Maximum

Sync Output

Pulse width (400ns) Pass/Fail ---------- ---------- Pass/Fail

High Level

Low Level

Internal Clock Frequency

DTG5078

Clock Frequency at 100.00000 MHz 99.999 90 MHz 100.00010 MHz

Clock Frequency at 750.00000 MHz 745.99925 MHz 750.00075 MHz

Clock Frequency at 500.00000 MHz 499.99950 MHz 500.00050 MHz

Clock Frequency at 499.99999 MHz 499.99949 MHz 500.00049 MHz

Clock Frequency at 50.000000 kHz 49.999950 kHz 50.000050 kHz

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-15

Performance Verification

DTG5000 series Performance Verification

Mainframe Minimum Incoming Outgoing Maximum

DTG5274 / DTG5334

Clock Frequency at 100.00000 MHz 99.999 90 MHz 100.00010 MHz

Clock Frequency at 3.3500000 GHz 3.34999665 GHz 3.35000335 GHz

Clock Frequency at 2.7000000 GHz 2.699973 GHz 2.7000027 GHz

Clock Frequency at 2.0000000 GHz 1.9999980 GHz 2.0000020 GHz

Clock Frequency at 1.9999999 GHz 1.9999979 GHz 2.0000019 GHz

Clock Frequency at 50.000000 kHz 49.999950 kHz 50.000050 kHz

External Clock Output (These are typical values and provided for user convenience. Not guaranteed.)

DTG5078

At 1.000p-p amplitude

Amplitude (1.000 V

) Pass/Fail ---------- ---------- Pass/Fail

p-p

Aberration (<10%) Pass/Fail ---------- ---------- Pass/Fail

Rise Time and Fall Time (<100 ps)

At 0.100

amplitude

p-p

Amplitude (0.100 V

) Pass/Fail ---------- ---------- Pass/Fail

p-p

Aberration (<10 %) Pass/Fail ---------- ---------- Pass/Fail

Rise Time and Fall Time (<85 ps)

DTG5274

At 1.000

amplitude

p-p

Amplitude (1.000 V

) Pass/Fail ---------- ---------- Pass/Fail

p-p

Aberration (<10 %) Pass/Fail ---------- ---------- Pass/Fail

Rise Time and Fall Time (<80 ps)

At 0.100

amplitude

p-p

Amplitude (0.100 V

) Pass/Fail ---------- ---------- Pass/Fail

p-p

Aberration (<10 %) Pass/Fail ---------- ---------- Pass/Fail

Rise Time and Fall Time (<70 ps)

DTG5334

At 1.000

amplitude

p-p

Amplitude (1.000 V

) Pass/Fail ---------- ---------- Pass/Fail

p-p

Aberration (<10 %) Pass/Fail ---------- ---------- Pass/Fail

Rise Time and Fall Time (<100 ps)

1-16 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

DTG5000 series Performance Verification

Mainframe Minimum Incoming Outgoing Maximum

External Clock Input

10 MHz, 1 V

Frequency (10 MHz, 4digits) on the Clock

Clock pattern Pass/Fail ---------- ---------- Pass/Fail

p-p

Pass/Fail ---------- ---------- Pass/Fail

Frequency field of DTG5000 series

10MHz Reference Input

100MHz, 1 V

Clock pattern Pass/Fail ---------- ---------- Pass/Fail

p-p

10MHz Reference Output

10MHz, 1.2 V

10MHz, 2.4 V

Clock pattern at 50 Ω termination Pass/Fail ---------- ---------- Pass/Fail

p-p

Clock pattern 1 MΩ termination Pass/Fail ---------- ---------- Pass/Fail

p-p

Phase Lock Input

10MHz, 1 V

20MHz, 1 V

30MHz, 1 V

40MHz, 1 V

Clock pattern Pass/Fail ---------- ---------- Pass/Fail

p-p

Clock pattern Pass/Fail ---------- ---------- Pass/Fail

p-p

Clock pattern Pass/Fail ---------- ---------- Pass/Fail

p-p

Clock pattern Pass/Fail ---------- ---------- Pass/Fail

p-p

Internal Auto Trigger and Trigger Input

Confirm the displayed waveforms: Ch1 and CH2 Pass/Fail ---------- ---------- Pass/Fail

Observe the trigger level change effects Pass/Fail ---------- ---------- Pass/Fail

Change the trigger impedance and observe the

Pass/Fail ---------- ---------- Pass/Fail

waveform

Observe the trigger level change effects Pass/Fail ---------- ---------- Pass/Fail

Change the trigger level and trigger slope, and then

Pass/Fail ---------- ---------- Pass/Fail

observe the waveform

Change the trigger source and trigger level, and

Pass/Fail ---------- ---------- Pass/Fail

then observe the waveform

Change the trigger source and interval, and then

Pass/Fail ---------- ---------- Pass/Fail

observe the waveform

Change the Interval setting and observe the

Pass/Fail ---------- ---------- Pass/Fail

waveform

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-17

Performance Verification

DTG5000 series Performance Verification

Mainframe Minimum Incoming Outgoing Maximum

Event Input and Sequence Function

Verify that the oscilloscope displays data pattern

Pass/Fail ---------- ---------- Pass/Fail

such as shown in Figure 1-15

Verify that an approximately 3.3 V

amplitude low

p-p

Pass/Fail ---------- ---------- Pass/Fail

pulse waveform is generated from CH 2

synchronizing with CH3 signal rising edge on the

oscilloscope screen

Verify that an approximately 3.3 V

amplitude low

p-p

Pass/Fail ---------- ---------- Pass/Fail

pulse waveform is generated from CH 2

synchronizing with CH3 signal falling edge on the

oscilloscope screen

Confirm that the oscilloscope does not trigger Pass/Fail ---------- ---------- Pass/Fail

.Verify that an approximately 3.3 V

amplitude low

p-p

Pass/Fail ---------- ---------- Pass/Fail

pulse waveform is generated from CH 2

synchronizing with CH3 signal falling edge on the

oscilloscope screen

Confirm that the oscilloscope does not trigger Pass/Fail ---------- ---------- Pass/Fail

Verify that an approximately 3.3 V

amplitude low

p-p

Pass/Fail ---------- ---------- Pass/Fail

pulse waveform is generated from CH 2

synchronizing with CH3 signal falling edge on the

oscilloscope screen

Verify that an approximately 3.3 V

amplitude low

p-p

Pass/Fail ---------- ---------- Pass/Fail

pulse waveform is generated from CH 2

synchronizing with CH3 signal falling edge on the

oscilloscope screen

DTG5078 only

Verify that an approximately 3.3 V

amplitude low

p-p

Pass/Fail ---------- ---------- Pass/Fail

pulse waveform is generated from CH 2

synchronizing with CH3 signal falling edge on the

oscilloscope screen

Each time you push the MANUAL EVENT button at

Pass/Fail ---------- ---------- Pass/Fail

the front panel of DTG5000 series mainframe, the

oscilloscope screen is updated with data pattern

same as step 12-b

1-18 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

DTG5000 series Performance Verification

Mainframe Minimum Incoming Outgoing Maximum

All Jitter Generation

In the example of Figure 1-17, a 4 ns width jitter

appears on the rising and falling edges of every

pulse

Partial Jitter Generation

Confirm the jitter generation: In the example of

Figure 1-18, a 4 ns width jitter appears on the rising

and falling edges of one pulse

DC Output

DC Level at 3.00 V 2.86 V 3.14 V

Confirm the H Limit Pass/Fail ---------- ---------- Pass/Fail

DC Level

–3.00 V –3.14 V –2.86 V

–2.00 V –2.11 V –1.89 V

–1.00 V –1.08 V –0.92 V

0.00 V –0.05 V 0.05 V

1.00 V 0.92 V 1.08 V

2.00 V 1.89 V 2.11 V

Pass/Fail ---------- ---------- Pass/Fail

Pass/Fail ---------- ---------- Pass/Fail

4.00 V 3.83 V 4.17 V

5.00 V 4.80 V 5.20 V

Skew and Delay Timing

Skew Time between channels

DTG5274 / DTG5334 –100 ps 100 ps

DTG5078 –200 ps 200 ps

Lead Delay Time accuracy

DTG5274 / DTG5334 / DTG5078

(Slot A, B, C, and D)

DTG5078 (Slot E, F, G, and H) –150 ps 150 ps

Trail Delay Time accuracy

DTG5274 / DTG5334 / DTG5078

(Slot A, B, C, and D)

DTG5078 (Slot E, F, G, and H) –150 ps 150 ps

–100 ps 100 ps

–100 ps 100 ps

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-19

Performance Verification

DTG5000 series Performance Verification

Mainframe Minimum Incoming Outgoing Maximum

Clock Out Random Jitter

Verify that the oscilloscope displays the waveforms

as shown in Figure 1-22

RMS jitter (<3 ps) Pass/Fail ---------- ---------- Pass/Fail

Random Jitter

Verify that the oscilloscope displays the waveforms

as shown in Figure 1-24

RMS Jitter

DTG5078 (<4 ps) Pass/Fail ---------- ---------- Pass/Fail

DTG5274 (<3 ps) Pass/Fail ---------- ---------- Pass/Fail

DTG5334 (<3 ps) Pass/Fail ---------- ---------- Pass/Fail

Total Jitter

Verify that the oscilloscope displays the waveforms

as shown in Figure 1-25

RMS Jitter

DTG5078 (<18 ps) Pass/Fail ---------- ---------- Pass/Fail

DTG5274 (<16 ps) Pass/Fail ---------- ---------- Pass/Fail

DTG5334 (<15 ps) Pass/Fail ---------- ---------- Pass/Fail

Pass/Fail ---------- ---------- Pass/Fail

Pass/Fail ---------- ---------- Pass/Fail

Pass/Fail ---------- ---------- Pass/Fail

PG Mode

Verify that 100 MHz square waveform is displayed

on the oscilloscope screen

Verify the PG mode functions Pass/Fail ---------- ---------- Pass/Fail

Verify the CH1 duty Pass/Fail ---------- ---------- Pass/Fail

Verify Slew Rate function

(DTGM10 and DTGM20 only)

Master-Slave Operation

Confirm that the oscilloscope displays the

waveforms such as shown in Figure 1-29

Verify that the oscilloscope displays the same

waveforms as step 4 on the screen

Pass/Fail ---------- ---------- Pass/Fail

Pass/Fail ---------- ---------- Pass/Fail

Pass/Fail ---------- ---------- Pass/Fail

Pass/Fail ---------- ---------- Pass/Fail

1-20 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

DTG5000 series Performance Verification

Mainframe Minimum Incoming Outgoing Maximum

DTG5078 only

Verify that the oscilloscope displays the same

waveforms as step 4 on the screen

Output Module Minimum Incoming Outgoing Maximum

Data output DC Level

DTGM10

Ch1 High Level Voltage Accuracy

–1.0 V at Low = –1.5 V –1.08 V –0.92 V

0 V at Low = –1.5 V –0.05 V 0.05 V

1 V at Low = –1.5 V 0.92 V 1.08 V

2 V at Low = –1.5 V 1.89 V 2.11 V

Ch1 Low Level Voltage Accuracy

–1.0 V at High = 2.0 V –1.08 V –0.92 V

0 V at High = 2.0 V –0.05 V 0.05 V

1 V at High = 2.0 V 0.92 V 1.08 V

1.75 V at High = 2.0 V 1.6475 V 1.8525 V

Ch2 High Level Voltage Accuracy

Pass/Fail ---------- ---------- Pass/Fail

–1.0 V at Low = –1.5 V –1.08 V –0.92 V

0 V at Low = –1.5 V –0.05 V 0.05 V

1 V at Low = –1.5 V 0.92 V 1.08 V

2 V at Low = –1.5 V 1.89 V 2.11 V

Ch2 Low Level Voltage Accuracy

–1.0 V at High = 2.0 V –1.08 V –0.92 V

0 V at High = 2.0 V –0.05 V 0.05 V

1 V at High = 2.0 V 0.92 V 1.08 V

1.75 V at High = 2.0 V 1.6475 V 1.8525 V

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-21

Performance Verification

Output Module Minimum Incoming Outgoing Maximum

Ch3 High Level Voltage Accuracy

–1.0 V at Low = –1.5 V –1.08 V –0.92 V

0 V at Low = –1.5 V –0.05 V 0.05 V

1 V at Low = –1.5 V 0.92 V 1.08 V

2 V at Low = –1.5 V 1.89 V 2.11 V

Ch3 Low Level Voltage Accuracy

–1.0 V at High = 2.0 V –1.08 V –0.92 V

0 V at High = 2.0 V –0.05 V 0.05 V

1 V at High = 2.0 V 0.92 V 1.08 V

1.75 V at High = 2.0 V 1.6475 V 1.8525 V

Ch4 High Level Voltage Accuracy

–1.0 V at Low = –1.5 V –1.08 V –0.92 V

0 V at Low = –1.5 V –0.05 V 0.05 V

1 V at Low = –1.5 V 0.92 V 1.08 V

2 V at Low = –1.5 V 1.89 V 2.11 V

Ch4 Low Level Voltage Accuracy

–1.0 V at High = 2.0 V –1.08 V –0.92 V

0 V at High = 2.0 V –0.05 V 0.05 V

1 V at High = 2.0 V 0.92 V 1.08 V

1.75 V at High = 2.0 V 1.6475 V 1.8525 V

DTGM20

Ch1 High Level Voltage Accuracy

–0.9 V at Low = –1.0 V –1.08 V –0.92 V

0 V at Low = –1.0 V –0.05 V 0.05 V

1 V at Low = –1.0 V 0.92 V 1.08 V

2 V at Low = –1.0 V 1.89 V 2.11 V

Ch1 Low Level Voltage Accuracy

–0.9 V at High = 2.5 V –1.08 V –0.92 V

0 V at High = 2.5 V –0.05 V 0.05 V

1 V at High = 2.5 V 0.92 V 1.08 V

2 V at High = 2.5 V 1.89 V 2.11 V

1-22 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Output Module Minimum Incoming Outgoing Maximum

Ch2 High Level Voltage Accuracy

–0.9 V at Low = –1.0 V –1.08 V –0.92 V

0 V at Low = –1.0 V –0.05 V 0.05 V

1 V at Low = –1.0 V 0.92 V 1.08 V

2 V at Low = –1.0 V 1.89 V 2.11 V

Ch2 Low Level Voltage Accuracy

–0.9 V at High = 2.5 V –1.08 V –0.92 V

0 V at High = 2.5 V –0.05 V 0.05 V

1 V at High = 2.5 V 0.92 V 1.08 V

2 V at High = 2.5 V 1.89 V 2.11 V

Ch3 High Level Voltage Accuracy

–0.9 V at Low = –1.0 V –1.08 V –0.92 V

0 V at Low = –1.0 V –0.05 V 0.05 V

1 V at Low = –1.0 V 0.92 V 1.08 V

2 V at Low = –1.0 V 1.89 V 2.11 V

Ch3 Low Level Voltage Accuracy

–0.9 V at High = 2.5 V –1.08 V –0.92 V

0 V at High = 2.5 V –0.05 V 0.05 V

1 V at High = 2.5 V 0.92 V 1.08 V

2 V at High = 2.5 V 1.89 V 2.11 V

Ch4 High Level Voltage Accuracy

–0.9 V at Low = –1.0 V –1.08 V –0.92 V

0 V at Low = –1.0 V –0.05 V 0.05 V

1 V at Low = –1.0 V 0.92 V 1.08 V

2 V at Low = –1.0 V 1.89 V 2.11 V

Ch4 Low Level Voltage Accuracy

–0.9 V at High = 2.5 V –1.08 V –0.92 V

0 V at High = 2.5 V –0.05 V 0.05 V

1 V at High = 2.5 V 0.92 V 1.08 V

2 V at High = 2.5 V 1.89 V 2.11 V

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-23

Performance Verification

Output Module Minimum Incoming Outgoing Maximum

DTGM21: Output impedance=23 Ω

Ch1 High Level Voltage Accuracy

–1.55 V at Low = –1.65 V –1.4535 V –1.6465 V

0.5 V at Low = –1.65 V 0.565 V 0.435 V

2 V at Low = –1.65 V 2.11 V 1.89 V

3.7 V at Low = –1.65 V 3.861 V 3.539 V

Ch1 Low Level Voltage Accuracy

–1.65 V at High = 3.7 V –1.5505 V –1.7495 V

0.5 V at High = 3.7 V 0.565 V 0.435 V

2 V at High = 3.7 V 2.11 V 1.89 V

3.6 V at High = 3.7 V 3.539 V 3.861 V

Ch2 High Level Voltage Accuracy

–1.55 V at Low = –1.65 V –1.4535 V –1.6465 V

0.5 V at Low = –1.65 V 0.565 V 0.435 V

2 V at Low = –1.65 V 2.11 V 1.89 V

3.7 V at Low = –1.65 V 3.861 V 3.539 V

Ch2 Low Level Voltage Accuracy

–1.65 V at High =3 .7 V –1.5505 V –1.7495 V

0.5 V at High = 3.7 V 0.565 V 0.435 V

2 V at High = 3.7 V 2.11 V 1.89 V

3.6 V at High = 3.7 V 3.539 V 3.861 V

Ch3 High Level Voltage Accuracy

–1.55 V at Low = –1.65 V –1.4535 V –1.6465 V

0.5 V at Low = –1.65 V 0.565 V 0.435 V

2 V at Low = –1.65 V 2.11 V 1.89 V

3.7 V at Low = –1.65 V 3.861 V 3.539 V

Ch3 Low Level Voltage Accuracy

–1.65 V at High = 3.7 V –1.5505 V –1.7495 V

0.5 V at High = 3.7 V 0.565 V 0.435 V

2 V at High = 3.7 V 2.11 V 1.89 V

3.6 V at High = 3.7 V 3.539 V 3.861 V

1-24 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Output Module Minimum Incoming Outgoing Maximum

Ch4 High Level Voltage Accuracy

–1.55 V at Low = –1.65 V –1.4535 V –1.6465 V

0.5 V at Low = –1.65 V 0.565 V 0.435 V

2 V at Low = –1.65 V 2.11 V 1.89 V

3.7 V at Low = –1.65 V 3.861 V 3.539 V

Ch4 Low Level Voltage Accuracy

–1.65 V at High = 3.7 V –1.5505 V –1.7495 V

0.5 V at High = 3.7 V 0.565 V 0.435 V

2 V at High = 3.7 V 2.11 V 1.89 V

3.6 V at High = 3.7 V 3.539 V 3.861 V

DTGM21: Output impedance = 50 Ω

Ch1 High Level Voltage Accuracy

–1.1 V at Low = –1.2 V –1.017 V 1.183 V

0 V at Low = –1.2 V –0.05 V 0.05 V

1.5 V at Low = –1.2 V 1.405 V 1.595 V

2.7 V at Low = –1.2 V 2.569 V 2.831 V

Ch1 Low Level Voltage Accuracy

–1.2 V at High = 2.7 V –1.114 V –1.286 V

0 V at High = 2.7 V –0.05 V 0.05 V

1.5 V at High = 2.7 V 1.405 V 1.595 V

2.6 V at High = 2.7 V 2.472 V 2.728 V

Ch2 High Level Voltage Accuracy

–1.1 V at Low = –1.2 V –1.017 V 1.183 V

0 V at Low = –1.2 V –0.05 V 0.05 V

1.5 V at Low = –1.2 V 1.405 V 1.595 V

2.7 V at Low = –1.2 V 2.569 V 2.831 V

Ch2 Low Level Voltage Accuracy

–1.2 V at High = 2.7 V –1.114 V –1.286 V

0 V at High = 2.7 V –0.05 V 0.05 V

1.5 V at High = 2.7 V 1.405 V 1.595 V

2.6 V at High = 2.7 V 3.539 V 2.728 V

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-25

Performance Verification

Output Module Minimum Incoming Outgoing Maximum

Ch3 High Level Voltage Accuracy

–1.1 V at Low = –1.2 V –1.017 V 1.183 V

0 V at Low = –1.2 V –0.05 V 0.05 V

1.5 V at Low = –1.2 V 1.405 V 1.595 V

2.7 V at Low = –1.2 V 2.569 V 2.831 V

Ch3 Low Level Voltage Accuracy

–1.2 V at High = 2.7 V –1.114 V –1.286 V

0 V at High = 2.7 V –0.05 V 0.05 V

1.5 V at High = 2.7 V 1.405 V 1.595 V

2.6 V at High = 2.7 V 2.472 V 2.728 V

Ch4 High Level Voltage Accuracy

–1.1 V at Low = –1.2 V –1.017 V 1.183 V

0 V at Low = –1.2 V –0.05 V 0.05 V

1.5 V at Low = –1.2 V 1.405 V 1.595 V

2.7 V at Low = –1.2 V 2.569 V 2.831 V

Ch4 Low Level Voltage Accuracy

–1.2 V at High = 2.7 V –1.114 V –1.286 V

0 V at High = 2.7 V –0.05 V 0.05 V

1.5 V at High = 2.7 V 1.405 V 1.595 V

2.6 V at High = 2.7 V 2.472 V 2.728 V

DTGM30

Ch1 High Level Voltage Accuracy

–0.97 V at Low = –1.0 V –1.0491 V –0.8909 V

0.5 V at Low = -0.75 0.435 V 0.565 V

2.0 V at Low = 1.50 V 1.89 V 2.11 V

2.47 V at Low = 2.44 V 2.3459 V 2.5941 V

Ch1 Low Level Voltage Accuracy

–1.0 V at High = 0.25 V –1.08 V –0.92 V

0.5 V at High = 1.50 V 0.435 V 0.565 V

2.0 V at High = 2.25 V 1.89 V 2.11 V

2.44 V at High = 2.47 V 2.3168 V 2.5632 V

1-26 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Output Module Minimum Incoming Outgoing Maximum

Ch2 High Level Voltage Accuracy

–0.97 V at Low = –1.0 V –1.0491 V –0.8909 V

0.5 V at Low = –0.75 0.435 V 0.565 V

2.0 V at Low = 1.50 V 1.89 V 2.11 V

2.47 V at Low = 2.44 V 2.3459 V 2.5941 V

Ch2 Low Level Voltage Accuracy

–1.0 V at Low = 0.25 V –1.08 V –0.92 V

0.5 V at High = 1.50 V 0.435 V 0.565 V

2.0 V at High = 2.25 V 1.89 V 2.11 V

2.44 V at High = 2.47 V 2.3168 V 2.5632 V

DTGM31

Ch1 High Level Voltage Accuracy

–0.97 V at Low = –1.0 V –1.0491 V –0.8909 V

0.5 V at Low = –0.75 V 0.435 V 0.565 V

2.0 V at Low = 1.50 V 1.89 V 2.11 V

2.47 V at Low = 2.44 V 2.3459 V 2.5941 V

Ch1 Low Level Voltage Accuracy

–1.0 V at High = 0.25 V –1.08 V –0.92 V

0.5 V at High = 1.50 V 0.435 V 0.565 V

2.0 V at High = 2.25 V 1.89 V 2.11 V

2.44 V at High = 2.47 V 2.3168 V 2.5632 V

DTGM32

Ch1 High Level Voltage Accuracy

–0.97 V at Low = –1.0 V –1.0491 V –0.8909 V

0.5 V at Low = –0.75 0.435 V 0.565 V

2.0 V at Low = 1.50 V 1.89 V 2.11 V

2.47 V at Low = 2.44 V 2.3459 V 2.5941 V

Ch1 Low Level Voltage Accuracy

–1.0 V at High = 0.25 V –1.08 V –0.92 V

0.5 V at High = 1.50 V 0.435 V 0.565 V

2.0 V at High = 2.25 V 1.89 V 2.11 V

2.44 V at High = 2.47 V 2.3168 V 2.5632 V

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-27

Performance Verification

Output Module Minimum Incoming Outgoing Maximum

Data Format

NRZ Pass/Fail ---------- ---------- Pass/Fail

RZ Pass/Fail ---------- ---------- Pass/Fail

R1 Pass/Fail ---------- ---------- Pass/Fail

1-28 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Mainframe

Performance Verification

The following procedures check those characteristics that relate to the mainframe
that are checked under Mainframe in Specifications. Refer to page 2-4.

NOTE. To perform the Performance Tests, at least one output module must be

installed in the DTG5000 Series Data T iming Generat or mainframe. You can select
any slot when you perform the tests even though the descriptions below are
assuming the Slot A is used.

Sync Output

This test verifies that the DTG5000 series mainframe sync output is functional.

Equipment
required

Prerequisites

One oscilloscope (TDS7154) (item 3)

Tw o 50

Ω SMA coaxial cables (item 6)

Two SMA (female)-BNC (male) adapters (item 9)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:
a. Hook up the oscilloscope:

 Attach SMA (female)-BNC (male) adapters to the oscilloscope CH1

input and CH2 input connectors.

 Connect an SMA coaxial cable from the CH2 connector of output

module, which is in slot A of the DTG5000 series mainframe, to the
SMA-BNC adapter (CH2 input of oscilloscope).

 Connect an SMA coaxial cable from the SYNC OUT at the front panel

of the DTG5000 series mainframe to the SMA-BNC adapter (CH1
input of the oscilloscope). See Figure 1-6.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-29

Performance Verification

DTG5000 series

CH2 OUT PUT

SYNC OUT

50 Ω SMA coaxial cables

Figure 1-6: Sync output tests

b. Set the oscilloscope controls as follows:

Ve rt i ca l

CH1 and CH2 coupling . . . . . . . . . . . . . . . . . DC

CH1 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mV/div

CH2 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/div

CH1 and CH2 input impedance . . . . . . . . . . 50 Ω

CH1 offset . . . . . . . . . . . . . . . . . . . . . . . . . . . –200 mV

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 ns/div

Acquisition

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Average

Number of running averages. . . . . . . . . . . . . 32

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH2

Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC

Slope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mV

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto

Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1 High

Oscilloscope (TDS7154)

CH1 and CH2 Inputs
+ SMA (female)-BNC
(male) adapter

CH1 Low

2. Set the data timing generator controls and load the setup file:
a. Load the setup file (SYNCOUT.dtg). Refer to Loading Files on page 1-13.
b. After the file is loaded, the Frequency of data timing generator is set to

10MHz.

1-30 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

3. Push the RUN button of the data timing generator to light the R UN LED, and

then push the ALL OUTPUTS ON/OFF button to activate the output.

4. Confirm the oscilloscope screen: Verify that the 400 ns width square waveform

appears in the CH1 display.

5. Using the oscilloscope Measurement functions, verify that the High Lev el and

Low Level values of Sync Out are as follows:

 High Level: approximately 0 V
 Low Level: approximately –0.4 V

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-31

Performance Verification

Internal Clock Frequency

This test verifies the frequency accuracy of internal clock.

Equipment
required

Prerequisites

One frequency counter (item 1)

One 50 Ω SMA coaxial cable (item 6)

One SMA (female)-BNC (male) adapter (item 9)

One N (male)-SMA (male) adapter (item 10)

One SMA (female)-SMA (female) adapter (item 11)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:
a. Hook up the frequency counter:

 Attach an SMA (female)-BNC (male) adapter to the CHANNEL 1

input of frequency counter.

 Attach a N (male)-SMA (male) adapter to the CHANNEL 2 input of

frequency counter, and then attach an SMA (female)-SMA (female)
adapter to the N-SMA adapter.

 Connect an SMA coaxial cable from the CLOCK OUT at the rear

panel (DTG5078, DTG5274) or the front panel (DTG5334) through
the SMA-BNC adapter to the frequency counter CHANNEL 1 input.
See Figure 1-7.

CHANNEL 2

DTG5078/DTG5274 rear
or DTG5334 front

CLOCK OUT

Frequency Counter

50 Ω SMA coaxial cable

+ N (male)-SMA (male) adapter +
SMA (female)-S MA (female) adapter

CHANNEL 1
+ SMA (female)-BNC (male) adapter

Figure 1-7: Internal Clock Frequency tests

b. Power on the frequency counter, and verify that the frequency counter is

set to frequency measurement mode (default setting).

1-32 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

2. Load the setup file (INTCLK.dtg). Refer to Loading Files on page 1-13.

3. Push the RUN button of the data timing generator to light the R UN LED, and

then push the ALL OUTPUTS ON/OFF button to activate the output.

4. Set the frequency counter trigger to an appropriate value, and then verify that

the frequency counter reading is between 99.9999 MHz and 100.0001 MHz.

5. From the application menu bar, select Settings, and then select Timing.

6. Move cursor to Clock Frequency with the TAB key, and then set frequency

counter as follows:

DTG5078

Setup frequency Range Frequency counter input

50.000000 kHz 49.999950 kHz to 50.000050 kHz CHANNEL 1

499.99999 MHz 499.99949 MHz to 500.00049 MHz CHANNEL 2

500.00000 MHz 499.99950 MHz to 500.00050 MHz CHANNEL 2

750.00000 MHz 745.99925 MHz to 750.00075 MHz CHANNEL 2

DTG5274/DTG5334

Setup frequency Range Frequency counter input

50.000000 kHz 49.999950 kHz to 50.000050 kHz CHANNEL 1

1.9999999 GHz 1.9999979 GHz to 2.0000019 GHz CHANNEL 2

2.0000000 GHz 1.9999980 GHz to 2.0000020 GHz CHANNEL 2

2.7000000 GHz 2.699973 GHz to 2.7000027 GHz CHANNEL 2

3.3500000 GHz 3.34999665 GHz to 3.35000335 GHz CHANNEL 2

7. Verify that the frequency measurements are within the specified range.

NOTE. For 100 MHz and 50 kHz measurements, connect the SMA coaxial cable to

CHANNEL 1 input of the frequency counter. For the other meas urements, connect
the cable to CHANNEL 2.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-33

Performance Verification

t

External Clock Output

This test verifies the rise time/fall time and aberration of external clock output.

Equipment
required

Prerequisites

One sampling oscilloscope with an 80E03 sampling module (item 4)

Three 50 Ω SMA coaxial cables (item 6)

Two attenuators (item 17)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:
a. Hook up the oscilloscope:

 Attach the attenuator to CH1 input and CH2 input of the 80E03

sampling module.

 Connect an SMA coaxial cable from the CLOCK OUT at the rear

panel (DTG5078, DTG5274) or the front panel (DTG5334) to the
CH1 input of the 80E03 sampling module.

 Connect an SMA coaxial cable from the CLOCK OUT at the rear

panel (DTG5078, DTG5274) or the front panel (DTG5334) to the
CH2 input of the 80E03 sampling module.

DTG5078/DTG5274 rear
or DTG5334 front

CLOCK OUT

CLOCK OUT

Figure 1-8: External Clock Output tests

 Connect an SMA coaxial cable from the SYNC OUT at the front panel

of DTG5000 series mainframe to the Trigger Direct Input of
sampling oscilloscope. See Figure 1-8.

DTG5000 series

SYNC OUT

50 Ω SMA coaxial cables

CH1 Input
+12dB ATT

Oscilloscope (CSA8000B)

CH2 Input
+12dB ATT

Trigger Direct Inpu

1-34 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

b. Set the oscilloscope controls as follows:

Ve rt i ca l

CH1 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/div (with a 12 dB ATT)

CH2 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/div (with a 12 dB ATT)

Select Setup -> Vertical ->

External Attenuation, then select
12 dB.

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ns/div

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Direct

Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –200 mV

Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . Common to CH1 and CH2

Amplitude

Positive Overshoot

Negative Overshoot

Rise Time . . . . . . . . . . . . . . . . . . . . . . . . . . . High Ref = 80%, Low Ref = 20%

Fall Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . High Ref = 80%, Low Ref = 20%

2. Load the setup file (CLKOUT.dtg). Refer to Loading Files on page 1-13.

3. Push the RUN (front) button of the data timing generator to light the RUN

LED, and then push the ALL OUTPUTS ON/OFF (front) button to activate
the output.

4. From the application menu bar, select Settings, and then select Time Base.

5. Move cursor to Amplitude with the TAB key.

6. Set the Amplitude values as shown in the following table.

Setup value Typical value

Amplitude Aberration

Rise Time and Fall Time

(Positive Overshoot and

3

1.000 V

p-p

Negative Overshoot)

<10 % <100 ps (DTG5334)

<80 ps (DTG5274)
<100 ps (DTG5078)

0.100 V

p-p

--- <70 ps (DTG5274)
<85 ps (DTG5078)

3

These are typical values. Typical specifications are provided for user convenience,

but are not guaranteed.

3

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-35

Performance Verification

7. Perform the following measurements for the oscilloscope CH1 input:
a. Verify the aberration: Confirm that the measurement results are

approximately the same as stated in the list by observing the rising and
falling edges of displayed waveform while adjusting the horizontal
position.

b. V erify the rise time: Measure the rise time while observing the rising edge.

Confirm that the measurement results are approximately the same values
as stated in the list.

c. Verify the f all time: Measure the fall time while observing the falling edge.

Confirm that the measurement results are approximately the same values
as stated in the list.

d. Verify the amplitude: Confirm on the oscilloscope screen that the

amplitude values are approximately the same level as specified by step 6
above.

8. Repeat the same measurements as 7–a through 7–d for the CH2 input.

External Clock Input

This test verifies the external clock input function and frequency measurement
accuracy of the DTG5000 series mainframe.

Equipment
required

Prerequisites

One sampling oscilloscope with a 80E03 sampling module (item 4)

One function generator (item 5)

Two 50 Ω SMA coaxial cables (item 6)
One 50 Ω BNC coaxial cable (item 7)

One SMA (male)-BNC (female) adapter (item 8)

One attenuator (item 17)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:
a. Hook up the oscilloscope and function generator:

 Attach the attenuator to CH1 input of the 80E03 sampling module.
 Attach an SMA (male)-BNC (female) adapter to the CLOCK

EXTERNAL IN at the rear panel (DTG5078, DTG5274) or the front
panel (DTG5334).

 Connect a BNC coaxial cable from the front panel CH1 Out of

function generator to the SMA-BNC adapter (Clock External In).

1-36 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

 Connect an SMA coaxial cable from the CLOCK OUT at the rear

panel (DTG5078, DTG5274) or the front panel (DTG5334) to the
CH1 input of the 80E03 sampling module.

 Connect an SMA coaxial cable from the SYNC OUT at the front panel

of DTG5000 series mainframe to the Trigger Direct Input of
sampling oscilloscope. See Figure 1-9.

Function Generator

CH1 OUT

50 Ω BNC coaxial cable

CLOCK EXTERNAL IN
+ SMA (male)-BNC (female) adapter

CLOCK OUT

Figure 1-9: External Clock Input tests

b. Set the oscilloscope controls as follows:

DTG5000 series

SYNC OUT

DTG5078/DTG5274 rear
or DTG5334 front

50 Ω SMA coaxial cable

Oscilloscope (CSA8000B)

Trigger Direct Input

50 Ω SMA coaxial cable

CH1 Input +
12 dB attenuator

Ve rt i ca l

CH1 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/div (with a 12 dB ATT)

Select Setup -> Vertical ->

External Attenuation, then select
12 dB.

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 ns/div

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Direct

Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.2 V

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-37

Performance Verification

c. Set the function generator controls:

Output channel . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1

Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Square

Paramet ers

Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MHz

Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 V into 50 Ω

Offset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 mV

Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Off

2. Load the setup file (CLKIN.dtg). Refer to Loading Files on page 1-13.

3. Turn the function generator Output on.

4. Push the RUN button of the data timing generator to light the R UN LED, and
then push the ALL OUTPUTS ON/OFF button to activate the output.

5. V erify the disp layed waveform: A 10 MHz, approximately 1 V

clock pattern

p-p

is displayed on the oscilloscope screen.

6. Verify the frequency: Push the TIMING b utton at the front panel of DTG5000
series mainframe and verify that 10.00 MHz (four digits) is displayed at the
Clock Frequency field.

1-38 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

10 MHz Reference Input

This test verifies that the 10 MHz reference input of the DTG5000 series
mainframe is functional.

Equipment
required

Prerequisites

One oscilloscope (TDS7154) (item 3)

One function generator (item 5)

Two BNC coaxial cables (item 7)

One SMA (male)-BNC (female) adapter (item 8)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:

a. Hook up the oscilloscope and function generator:

 Use an SMA (male)-BNC (female) adapter and a BNC coaxial cable

to connect the CLOCK OUT at the rear panel (DTG5078, DTG5274)
or the front panel (DTG5334) and the CH1 input of oscilloscope.

 Connect a BNC coaxial cable from the CH1 Out at the front panel of

function generator to the EXTERNAL 10MHz REF IN at the rear
panel of DTG5000 series mainframe. See Figure 1-10.

Oscilloscope (TDS7154)

CH1 Input

Figure 1-10: 10 MHz Reference Input tests

50 Ω BNC coaxial cable

DTG5078/DTG5274 rear
or DTG5334 front

EXTERNAL 10MHz REF IN

CLOCK OUT
+ SMA (male)-BNC (female) adapter

50 Ω BNC coaxial cable

Function Generator

CH1 OUT

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-39

Performance Verification

b. Set the oscilloscope controls as follows:

Vertical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1

CH1 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mV/div

CH1 input impedance . . . . . . . . . . . . . . . . . . 50 Ω

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 ns/div

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1

Slope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.5 V

c. Set the function generator controls:

Output channel . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1

Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Square

Paramet ers

Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MHz

Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 V into 50 Ω

Offset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 mV

10 MHz Reference Output

2. Load the setup file (REFIN.dtg). Refer to Loading Files on page 1-13.

3. Turn the function generator Output on.

4. Push the RUN button of the data timing generator to light the R UN LED, and
then push the ALL OUTPUTS ON/OFF button to activate the output.

5. Verify the displayed waveform: A 100 MHz, approximately 1 V

p-p

clock

pattern is displayed on the oscilloscope screen.

This test verifies that the 10 MHz reference output of the DTG5000 series
mainframe is functional.

Equipment
required

Prerequisites

One oscilloscope (TDS7154) (item 3)

One BNC coaxial cable (item 7)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1-40 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

1. Install the test hookup and preset the instrument controls:

a. Hook up the oscilloscope:

 Connect a BNC coaxial cable from the 10 MHz REF OUT at the rear

panel of DTG5000 series mainframe to the CH1 input of oscilloscope.
See Figure 1-11.

DTG5000 series rear

10 MHz REF OUT

50 Ω BNC coaxial cable

Oscilloscope (TDS7154)

Figure 1-11: 10 MHz Reference Output tests

b. Set the oscilloscope controls as follows:

Vertical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1

CH1 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mV/div

CH1 input impedance . . . . . . . . . . . . . . . . . . 50 Ω

CH1 offset . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.6 V

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 ns/div

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1

Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V

CH1 Input

2. Load the setup file (REFOUT.dtg). Refer to Loading Files on page 1-13.

3. Push the RUN button of the data timing generator to light the R UN LED, and

then push the ALL OUTPUTS ON/OFF button to activate the output.

4. Verify the displayed waveform: A 10 MHz, approximately 1.2 V

p-p

clock

pattern is displayed on the oscilloscope screen.

5. Modify the oscilloscope setting and verify the displayed waveform:

a. Change the CH1 impedance setting of oscilloscope to 1 MΩ.
b. Verify that the amplitude of the clock pattern changes to approximately

p-p

.

2.4 V

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-41

Performance Verification

Phase Lock Input

This test verifies that the phase lock input of the DTG5000 series mainframe is
functional.

Equipment
required

Prerequisites

One oscilloscope (TDS7154) (item 3)

One function generator (item 5)

Two BNC coaxial cables (item 7)

One SMA (male)-BNC (female) adapter (item 8)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:
a. Hook up the oscilloscope and function generator:

 Connect a BNC coaxial cable from the CH1 Out at the front panel of

function generator to the PHASE LOCK IN at the rear panel of
DTG5000 series mainframe.

 Use an SMA (male)-BNC (female) adapter and a BNC coaxial cable

to connect the CLOCK OUT at the rear panel (DTG5078, DTG5274)
or the front panel (DTG5334) and the oscilloscope CH1 input. See
Figure 1-12.

Oscilloscope (TDS7154)

CH1 Input

Figure 1-12: Phase Lock Input tests

50 Ω BNC coaxial cable

DTG5078/DTG5274 rear
or DTG5334 front

PHASE LOCK IN

CLOCK OUT
+ SMA (male)-BNC
(female) adapter

Function Generator

CH1 OUT

50 Ω BNC coaxial cable

1-42 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

b. Set the oscilloscope controls as follows:

Vertical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1

CH1 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/div

CH1 input impedance . . . . . . . . . . . . . . . . . . 50 Ω

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 ns/div

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1

Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.5 V

c. Set the function generator controls:

Output channel . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1

Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Square

Paramet ers

Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.0 MHz

Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 V into 50 Ω

Offset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 mV

Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Off

Performance Verification

2. Load the setup file (PLL.dtg). Refer to Loading Files on page 1-13.

3. Turn the function generator Output on.

4. Push the RUN button of the data timing generator to light the R UN LED, and

then push the ALL OUTPUTS ON/OFF button to activate the output.

5. Verify the displayed waveform: A 10 MHz, 1 V

clock pattern is displayed

p-p

on the oscilloscope screen.

6. Observe the clock pattern change:

a. From the application menu bar of DTG5000 series mainframe, select

Settings, and then select Timing.
b. Move cursor to Clock Frequency with the TAB key.
c. Change the Clock Frequency to 20MHz, 30MHz, and 40MHz in this

sequence.
d. Verify the displayed waveform on the oscilloscope screen:

A 10 MHz, 1 V

clock pattern is changed to 20 MHz, 30 MHz, and

p-p

40 MHz in response to the clock frequency change.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-43

Performance Verification

Internal Auto Trigger and

Trigger Input

This test verifies that the internal trigger is functional.

Equipment
required

Prerequisites

One oscilloscope (TDS7154) (item 3)

One function generator (item 5)

Three BNC coaxial cables (item 7)

One SMA (male)-BNC (female) adapter (item 8)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:
a. Hook up the oscilloscope and function generator:

 Connect a BNC coaxial cable from the CH1 OUT at the front panel of

function generator to the TRIGGER IN at the front panel of
DTG5000 series mainframe.

 Connect a BNC coaxial cable from the CH2 OUT at the front panel of

function generator to the CH2 input of oscilloscope

 Use an SMA (male)-BNC (female) adapter and a BNC coaxial cable

to connect the SYNC OUT at the front panel of DTG5000 series
mainframe and the CH1 input of oscilloscope. See Figure 1-13.

TRIGGER IN

DTG5000 series

SYNC OUT
+ SMA (m ale)-BNC (female) adapter

Figure 1-13: Internal Trigger tests

Function Generator

CH1 OUT

50 Ω BNC coaxial cable

Oscilloscope (TDS7154)

CH1 Input

50 Ω BNC coaxial cable

CH2 OUT

CH2 Input

50 Ω BNC coaxial cable

1-44 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

b. Set the oscilloscope controls as follows:

Ve rt i ca l

CH1 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/div

CH2 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 V/div

CH1 and CH2 input impedance . . . . . . . . . . 50 Ω

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 ns/div

Acquisition

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peak Detect

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH2

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Normal

Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V

c. Set the function generator controls:

Performance Verification

Output channel . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1, CH2

Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Square (CH1, CH2)

Paramet ers

Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 MHz (CH1, CH2)

Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 V into 50 Ω (CH1, CH2)

Offset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V (CH1, CH2)

BOTH CH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Press SHIFT key, then press CH.

2. Load the setup file (TRIG.dtg). Refer to Loading Files on page 1-13.

3. Turn the function generator CH1 and CH2 Outputs on.

4. Push the RUN button of the data timing generator to light the R UN LED, and

then push the ALL OUTPUTS ON/OFF button to activate the output.

5. Confirm the displayed waveforms: Verify that an approximately 0.4 V

p-p

amplitude pulse waveform is generated from CH 1 every 1.00 µs
synchronizing with CH2 signal rising edge on the oscilloscope screen.

6. Observe the trigger level change effects:

a. From the application menu bar of DTG5000 series mainframe, select

Settings and then select Time Base.

b. Move cursor to Trigger Level with the TAB key and set the trigger level

to +1.1 V.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-45

Performance Verification

c. Verify that the CH1 pulse signal disappears from the oscilloscope screen

and that the data timing generator screen message changes to Waiting

Trigger.

7. Change the trigger impedance and observe the waveform:
a. From the application menu bar of DTG5000 series mainframe, select

Settings, and then select Time Base.

b. Move cursor to Trigger Impedance with the TAB key and set the trigger

impedance to 1 kΩ.

c. Verify that an approximately 0.4 V

amplitude pulse waveform is

p-p

generated from CH 1 every 1.00 µs synchronizing with CH2 signal rising
edge on the oscilloscope screen.

8. Observe the trigger level change effects:
a. From the application menu bar of DTG5000 series mainframe, select

Settings and then select Time Base.

b. Move cursor to Trigger Level with the TAB key and set the trigger level

to –0.4 V.

c. Verify that the CH1 pulse signal disappears from the oscilloscope screen

and that the data timing generator screen message changes to Waiting

Trigger.

9. Change the trigger level and trigger slope, and then observe the waveform:
a. From the application menu bar of DTG5000 series mainframe, select

Settings and then select Time Base.

b. Move cursor to Trigger Level and Trigger Slope with TAB key. Set the

trigger level to +1.0 V and trigger slope to Negative.

c. Confirm the displayed waveform: Verify that an approximately 0.4 V

amplitude pulse waveform is generated from CH 1 every 1.00 µs
synchronizing with CH2 signal falling edge on the oscilloscope screen.

p-p

10. Turn the function generator CH1 and CH2 Outputs off.

11. Change the trigger source and trigger level, and then observe the waveform:
a. Set the oscilloscope trigger source to CH1 and trigger level to –0.2 V.
b. Confirm the displayed waveform: Each time you push the MANUAL

TRIGGER button at the front panel of DTG5000 series mainframe, the

oscilloscope screen is updated with a pulse waveform.

12. Push the RUN button of the data timing generator to turn the RUN LED off.

1-46 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

13. Change the trigger source and interval, and then observe the waveform:

a. From the application menu bar of DTG5000 series mainframe, select

Settings and then select Time Base.

b. Move cursor to Trigger Source with the TAB key and set to Internal.
c. Set the Interval to 1.00 µs.
d. Push the RUN button of the data timing generator to light the RUN LED.
e. Verify that an approximately 0.4 V

amplitude pulse waveform is

p-p

generated every 1.00 µs on the oscilloscope screen.

14. Change the Interval setting and observe the waveform:

a. Change the Interval from 1.00 µs to 1.00 ms.
b. Change the horizontal scale of the oscilloscope from 200 ns/div to

200 µs/div.

c. Verify that an approximately 0.4 V

amplitude pulse waveform is

p-p

generated every 1.00 ms on the oscilloscope screen.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-47

Performance Verification

Event Input and

Sequence Function

This test verifies that the event input and sequence of the DTG5000 series
mainframe are functional.

Equipment
required

Prerequisites

One oscilloscope (TDS7154) (item 3)

One function generator (item 5)

One 50 Ω SMA coaxial cable (item 6)
Three 50 Ω BNC coaxial cables (item 7)

One SMA (female)-BNC (male) adapter (item 9)

One BNC-T connector (item 14)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:
a. Hook up the oscilloscope and function generator:

 Attach a BNC-T connector to the CH3 input of the oscilloscope.
 Connect a BNC coaxial cable from the CH1 Out of function generator

to the CH3 input of the oscilloscope (through BNC-T connector).

 Connect a second BNC coaxial cable to the EVENT IN at the front

panel of DTG5000 series mainframe, and then connect the opposite
end of the cable to the CH3 input of the oscilloscope (through BNC-T
connector).

 Connect a third BNC coaxial cable from the JUMP OUT1 at the rear

panel of DTG5000 series mainframe to the CH2 input of oscilloscope.

 Attach an SMA (female)-BNC (male) adapter to the oscil loscope CH1

input connector.

 Connect an SMA coaxial cable from the CH1 connector of the output

module, which is in slot A of the DTG5000 series mainframe, to the
SMA-BNC adapter (CH1 input of the oscilloscope).
See Figure 1-14.

1-48 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Function Generator

DTG5000 series rear

JUMP OUT1

Figure 1-14: Event Input and Sequence tests

b. Set the oscilloscope controls as follows:

DTG5000 series

CH1 OUT
of output module

50 Ω SMA coaxial cable

50 Ω BNC coaxial cable

EVENT IN

CH1 Input
+ SMA (Fe)-BNC (Ma) adapter

Oscilloscope (TDS7154)

Ve rt i ca l

CH1 and CH3 scale . . . . . . . . . . . . . . . . . . . 1 V/div

CH2 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 V/div

CH1 input impedance . . . . . . . . . . . . . . . . . . 50 Ω

CH2 and CH3 input impedance . . . . . . . . . . 1 MΩ

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 ns/div

Acquisition

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peak Detect

Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . RUN/STOP button Only

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH3

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Normal

Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.5 V

Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC

Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 %

CH1 OUT

CH3 Input +
BNC-T connector

CH2 Input

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-49

Performance Verification

c. Set the function generator controls:

Output channel . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1

Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Square (CH1)

Paramet ers

Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 Hz (CH1)

Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 V into 50 Ω (CH1)

Offset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V (CH1)

2. Load the setup file (EVENT.dtg). Refer to Loading Files on page 1-13.

3. Turn the function generator Output on.

4. Push the RUN button of the data timing generator to light the R UN LED, and
then push the ALL OUTPUTS ON/OFF button to activate the output.

5. Verify that the oscilloscope displays data pattern such as shown in Figure 1-15.

NOTE.

The CH1 and CH2 signals appear to have jitters. The DTG5274 and
DTG5334 has 120 clocks width jitter and the DTG5078 has 30 clocks width jitter
compared to CH3 trigger signal.

CH1

CH2

Tr i g g e r

CH3

signal

Figure 1-15: Data pattern example

1-50 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

6. Verify the waveform after changing the trigger source and trigger level

settings of the oscilloscope:

a. Set the trigger source to CH2 and the trigger level to +1.4 V.
b. Verify that an approximately 3.3 V

amplitude low pulse waveform is

p-p

generated from CH 2 synchronizing with CH3 signal rising edge on the
oscilloscope screen.

7. Change the DTG5000 series mainframe settings and verify the waveform:
a. From the application menu bar of DTG5000 series mainframe, select

Settings and then select Time Base.
b. Set the Event Input Polarity to Invert.
c. Verify that an approximately 3.3 V

amplitude low pulse waveform is

p-p

generated from CH 2 synchronizing with CH3 signal falling edge on the

oscilloscope screen.

8. Change the DTG5000 series mainframe settings and verify that the

oscilloscope untriggered:

a. From the application menu bar of DTG5000 series mainframe, select

Settings and then select Time Base.
b. Set the Event Input Threshold to +1.1 V.
c. Confirm that the oscilloscope does not trigger.

9. Change the DTG5000 series mainframe settings and verify the waveform:
a. From the application menu bar of DTG5000 series mainframe, select

Settings and then select Time Base.

b. Set the Event Input Impedance to 1 kΩ.
c. Verify that an approximately 3.3 V

amplitude low pulse waveform is

p-p

generated from CH 2 synchronizing with CH3 signal falling edge on the
oscilloscope screen.

10. Change the DTG5000 series mainframe settings and verify that the
oscilloscope untriggered:

a. From the application menu bar of DTG5000 series mainframe, select

Settings and then select Time Base.
b. Set the Event Input Threshold to –0.4 V.
c. Confirm that the oscilloscope does not trigger.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-51

Performance Verification

11. Change the DTG5000 series mainframe settings and verify the waveform:
a. From the application menu bar of DTG5000 series mainframe, select

Settings and then select Time Base.
b. Set the Event Input Threshold to + 1.0 V.
c. Verify that an approximately 3.3 V

amplitude low pulse waveform is

p-p

generated from CH 2 synchronizing with CH3 signal falling edge on the

oscilloscope screen.

12. Connect the cable to Jump Out2 and verify the displayed waveform:
a. Disconnect the BNC cable from the JUMP OUT1 and then connect it to

the JUMP OUT2 at the rear panel of DTG5000 series mainframe.

b. Verify that an approximately 3.3 V

amplitude low pulse waveform is

p-p

generated from CH 2 synchronizing with CH3 signal falling edge on the
oscilloscope screen.

13. (DTG5078 only) Connect the cable to Jump Out3 and verify the displayed
waveform:

a. Disconnect the BNC cable from the JUMP OUT2 and then connect it to

the JUMP OUT3 at the rear panel of DTG5000 series mainframe.

b. Verify that an approximately 3.3 V

amplitude low pulse waveform is

p-p

generated from CH 2 synchronizing with CH3 signal falling edge on the
oscilloscope screen.

14. Turn the function generator Output off.

15. Each time you push the MANU AL EVENT button at the front panel of

DTG5000 series mainframe, the oscilloscope screen is updated with data
pattern same as step 12–b. Ignore the CH3 waveform.

1-52 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

All Jitter Generation

This test verifies that the all jitter generation is functional. This function is pro vided
with the slot A CH1. While using this function, the slot A CH2 is in high
impedance status.

Equipment
required

Prerequisites

One oscilloscope (TDS7154) (item 3)

Two 50 Ω BNC coaxial cables (item 7)

Two SMA (male)-BNC (female) adapters (item 8)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:

a. Hook up the oscilloscope:

 Attach an SMA (male)-BNC (female) adapter to the CH1 connector of

the output module, which is in slot A of the DTG5000 series
mainframe.

 Attach an SMA (male)-BNC (female) adapter to the SYNC OUT at

the front panel of DTG5000 series mainframe.

 Connect a BNC coaxial cable from the SMA-BNC adapter of output

module to the CH1 input of oscilloscope.

 Connect a BNC coaxial cable from the SYNC OUT (SMA-BNC

adapter) at the front panel of DTG5000 series mainframe to the CH2
input of oscilloscope. See Figure 1-16.

DTG5000 series

CH1 output
+ SMA (male)-BNC (female)
adapter

SYNC OUT
+ SMA (m ale)-BNC (female) adapter

Figure 1-16: Jitter Generation tests

50 Ω BNC coaxial cable

Oscilloscope (TDS7154)

CH1 Input

CH2 Input

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-53

Performance Verification

b. Set the oscilloscope controls as follows:

Ve rt i ca l

CH1 and CH2 scale . . . . . . . . . . . . . . . . . . . 500 mV/div

CH1 and CH2 impedance . . . . . . . . . . . . . . . 50 Ω

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 ns/div

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH2

Slope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.2 V

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Infinite Persistence

2. Load the setup file (JITGEN_INTER.dtg). Refer to Loading Files on page
1-13.

3. Push the RUN button of the data timing generator to light the R UN LED, and
then push the ALL OUTPUTS ON/OFF button to activate the output.

4. Confirm the jitter generation: In the example of Figure 1-17, a 4 ns width jitter
appears on the rising and falling edges of every pulse.

DTG5078 DTG5274

Figure 1-17: Jitter Generation example (all)

1-54 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Partial Jitter Generation

This test verifies that the partial jitter generation is functional. This function is
provided with the slot A CH1. While using this function, the slot A CH2 is in high
impedance status.

Equipment
required

Prerequisites

One oscilloscope (TDS7154) (item 3)

Two 50 Ω BNC coaxial cables (item 7)

Two SMA (male)-BNC (female) adapters (item 8)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:

a. Hook up the oscilloscope:

 Attach an SMA (male)-BNC (female) adapter to the CH1 connector of

the output module, which is in slot A of the DTG5000 series
mainframe.

 Attach an SMA (male)-BNC (female) adapter to the SYNC OUT at

the front panel of DTG5000 series mainframe.

 Connect a BNC coaxial cable from the SMA-BNC adapter of output

module to the CH1 input of oscilloscope.

 Connect a BNC coaxial cable from the SYNC OUT (SMA-BNC

adapter) at the front panel of DTG5000 series mainframe to the CH2
input of oscilloscope. See Figure 1-16 on page 1-53.

b. Set the oscilloscope controls as follows:

Ve rt i ca l

CH1 and CH2 scale . . . . . . . . . . . . . . . . . . . 500 mV/div

CH1 and CH2 impedance . . . . . . . . . . . . . . . 50 Ω Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 ns/div

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH2

Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.2 V

Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Set to10%

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Infinite Persistence

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-55

Performance Verification

2. Load the setup file (JITGEN_P ARA.dtg). Refer to Loading F iles on page 1 -13.

3. Push the RUN button of the data timing generator to light the R UN LED, and
then push the ALL OUTPUTS ON/OFF button to activate the output.

4. Press the Set Level to 50% on the oscilloscope.

5. Confirm the jitter generation: In the example of Figure 1-18, a 4 ns width jitter

appears on the rising and falling edges of one pulse.

DTG5078 DTG5274

Figure 1-18: Jitter Generation example (partial)

1-56 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

DC Output

This test verifies the DC output accuracy.

Equipment
required

Prerequisites

One digital multimeter (item 2)

Lead set for DC output (item 12)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Attach the DC output lead set to the DC output connector at the front right side

of DTG5000 series mainframe. See Figure 1-19.

DTG5000 series

DC output lead set

DMM tester

terminals

Figure 1-19: DC Output tests

2. Set the digital multi meter controls:

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Direct Voltage

Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto

3. Load the setup file (DCOUT.dtg). Refer to Loading Files on page 1-13.

4. From the application menu bar, select Settings, and then select DC Output.

5. Move cursor to Output On box, and click the box to activate it.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-57

Performance Verification

6. Measure the potential difference for every channel:
a. Touch the DMM tester terminal to the metallic exposed pin of DC output

lead set. The lead set is composed of eight twisted lines and each line has
the one pin holder at the tip.

NOTE. Every channel is colored by its own color, for example CH1 is colored

brown and CH5 is colored green. Touch the DMM tester terminal to the one
channel color lead and then touch another tester terminal to the corresponding
gray lead.

b. Verify that all the measurement results are between 2.86 V and 3.14 V.

7. Modify the data timing generator settings:
a. Change the H Limit of CH1 to 1.00 V.
b. Verify that the DMM reading is also 1.00 V.
c. Change the H Limit to 5 V.
d. Perform the same measurements as step 6–a while changing the Level as

shown in the following table.

Level DMM Range

–3.00 V –3.14 V to –2.86 V

–2.00 V –2.11 V to –1.89 V

–1.00 V –1.08 V to –0.92 V

0.00 V –0.05 V to 0.05 V

1.00 V 0.92 V to 1.08 V

2.00 V 1.89 V to 2.11 V

4.00 V 3.83 V to 4.17 V

5.00 V 4.80 V to 5.20 V

e. Verify that the DMM readings are within the specified range.

1-58 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Skew and Delay Timing

This test verifies that the sk ew and delay timing of the DTG5000 series mainframe
are functional.

Equipment
required

Prerequisites

One sampling oscilloscope with an 80E03 sampling module (item 4)

Two 50 Ω SMA coaxial cables (item 6)

One SMA termination (item 16, DTGM30 only)

One attenuator (item 17)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

You must perform both the level and skew calibration before starting this
test.

1. Install the test hookup and preset the instrument controls:

a. Hook up the oscilloscope:

 Attach an attenuator to CH1 input of the 80E03 sampling module.
 Connect an SMA coaxial cable from the CH1 connector of output

module, which is in slot A of the DTG5000 series mainframe, to the
CH1 input of the 80E03 sampling module.

 Connect an SMA coaxial cable from the SYNC OUT at the front panel

of DTG5000 series mainframe to the Trigger Direct Input of
sampling oscilloscope. See Figure 1-20.

 (DTGM30, DTGM31, and DTGM32): If your output module is

DTGM30, DTGM31, or DTGM32, attach an SMA termination to the

CH1

connector of output module.

DTG5000 series

CH1 of output module

Figure 1-20: Delay timing tests

SYNC OUT

50 Ω SMA coaxial cable

CH1 Input
+ 12 dB ATT

Oscilloscope (CSA8000B)

Trigger Direct Input

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-59

Performance Verification

b. Set the oscilloscope controls as follows:

Ve rt i ca l

CH1 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/div (with a 12 dB ATT)

Select Setup -> Vertical ->

External Attenuation, then select
12 dB.

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 ps/div

Acquisition

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Average

Number of running averages. . . . . . . . . . . . . 32

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Direct

Slope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Set to 50 %

Measurement

Delay Time

Select Meas . . . . . . . . . . . . . . . . . . . . . . . . . R1 (+) to C1 (+) Delay

Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . Absolute + 500 mV (R1, C1)

2. Load the setup file (DELAY.dtg). Refer to Loading Files on page 1-13.

3. Verify that the View by Channel is selected in the View menu of data timing

generator.

4. Push the RUN button of the data timing generator to light the R UN LED, and
then push the ALL OUTPUTS ON/OFF to activate the output.

5. Adjust the oscilloscope position controls so the waveform is centered on the
screen.

6. Do the following substeps:
a. Save the CH1 waveform of oscilloscope to Ref 1.
b. (DTGM10, DTGM20, and DTGM21): Disconnect the SMA cable from

the CH1 connector of the output module, and then connect it to CH2, CH3,
and CH4 of output module that installed in the slot A.

(DTGM30 only): Disconnect the SMA cable from the CH1 of the output
module, and then connect it to CH2 of the module that installed in the
slot A. Remove the SMA termination from the CH1

and attach it to CH2.

c. Record the R1C1 Delay measurement values.

1-60 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

d. Calculate the skew between channels from the values of the R1C1 Delay

measurements.

e. Repeat the measureme nts for other modules installed in the mainframe.
f. Verify that the measurement results are within the following range for

each module.

 <100 ps (slot A, B, C, D of DTG5078, DTG5274, and DTG5334)
 <200 ps (slot E, F, G, H of DTG5078)

7. Push the TIMING button at the front panel of DTG5000 series mainframe to

display the Timing Window.

8. Verify the instrument hookup: Confirm that the SMA cable is connected from

the CH1 input of the 80E03 sampling module to the CH1 connector of the
output module which is inserted in the slot A of the mainframe. If your output
module is DTGM30, DTGM31, or DTGM32, attach an SMA termination to
the CH1

connector of output module.

9. Do the following substeps to verify the Lead Delay accuracy.

a. Save the CH1 waveform of oscilloscope to Ref 1 at the DTG delay of

0.000 ns.

b. Verify that the View by Channel is selected in the View menu of data

timing generator.

c. Move the cursor to 1–A1 Delay on the data timing generator screen, and

then increment the value by 2 ns from 0.000 ns to 10.000 ns.

d. Adjust the oscilloscope horizontal position control so the CH1 waveform

(rising edge) is centered on the screen.

e. Modify the oscilloscope setting: Set Source 2 to Ch1 and Source 1 to Ref1.
f. Verify that the R1C1 Delay values are within the following range.

 ± 100 ps of setup v alue (slot A, B, C, D of DTG507 8, DTG5274, and

DTG5334)

 ± 150 ps of setup value (slot E, F, G, H of DTG5078)

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-61

Performance Verification

g. Repeat the same measurements as step 9–b through step 9–d for other

channels (see below), and verify that the measurement results are within
the specified range.

 (DTGM10, DTGM20, and DTGM21): Disconnect the SMA cable

from the CH1 connector of the output module, and then connect it to
CH2, CH3 and CH4 of the output module (CH3 and CH4 are for
DTG5078 only).

 (DTGM30 only): Disconnect the SMA cable from the CH1 connector

of the output module, and then connect it to CH2 of the output module.
Remove the SMA termination from the CH1

and attach it to CH2

connector.

h. Repeat the measurements for other modules installed in the mainframe.

10. Change the Delay settings of all the channels to 0.000 ns, and then set the
oscilloscope measurement function to R1(+) to C1(–) Delay.

11. Verify the instrument hookup: Confirm that the SMA cable is connected from

the CH1 input of the 80E03 sampling module to the CH1 connector of the
output module which is inserted in the slot A of the mainframe. If your output
module is DTGM30, DTGM31, or DTGM32, attach an SMA termination to
the CH1

connector of the output module.

12. Do the following substeps to verify the Trail Delay accuracy:
a. Save the CH1 waveform of oscilloscope to Ref 1 at the delay 0.000 ns.
b. Verify that the View by Channel is selected in the View menu of data

timing generator.

c. Move the cursor to 1–A1 PW/Duty on the data timing generator screen,

and then increment the trail delay by 0.002000 µs from 0.050000 µs to

0.060000 µs.

d. Adjust the oscilloscope horizontal position control so the CH1 waveform

(falling edge) is centered on the screen.

e. Verify that the R1C1 Delay values are within the following range.

 ± 100 ps of setup value

(slot A, B, C, D of DTG5078, DTG5274, and DTG5334)

 ± 150 ps of setup value (slot E, F, G, H of DTG5078)

f. Repeat the same measurements as step 12-b through step 12-d for other

channels and other modules, and verify that the measurement results are
within the specified range.

1-62 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Clock Out Random Jitter

This test verifies the data timing generator clock out random jitter.

Equipment
required

Prerequisites

One sampling oscilloscope with an 80E03 sampling module (item 4)

Two 50 Ω SMA coaxial cables (item 6)

Two attenuators (item 17)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:

a. Hook up the oscilloscope:

 Attach the attenuator to CH1 input of the 80E03 sampling module and

to Direct Tr igger Input of sampling oscilloscope.

 Connect an SMA coaxial cable from the CLOCK OUT at the rear

panel (DTG5078, DTG5274) or the front panel (DTG5334) to the
CH1 input of the 80E03 sampling module.

 Connect an SMA coaxial cable from the CLOCK OUT at the rear

panel (DTG5078, DTG5274) or the front panel (DTG5334) to the
Trigger Direct Input of sampling oscilloscope. See Figure 1-21.

DTG5078/DTG5274 rear
or DTG5334 front

CLOCK OUT

CLOCK OUT

CH1 Input + 12 dB attenuator

50 Ω SMA coaxial cable

Figure 1-21: Clock out random jitter tests

Oscilloscope (CSA8000B)

Trigger Direct Input +
12 dB attenuator

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-63

Performance Verification

b. Set the oscilloscope controls as follows:

Ve rt i ca l

CH1 scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mV/div (with a 12 dB ATT)

Select Setup -> Vertical ->
External Attenuation, then select
12dB.

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 ps/div (DTG5078)

50 ps/div (DTG5274/DTG5334)

Acquisition

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sample

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Direct

Slope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Set to 50%

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Infinite Persistence

Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1 RMS Jitter

Use Wfm Database
Signal Type: Pulse

2. Load the setup file (RNDJIT.dtg). Refer to Loading Files on page 1-13.

3. Push the RUN button of the data timing generator to light the R UN LED, and
then push the ALL OUTPUTS ON/OFF button to activate the output.

1-64 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

4. Verify that the oscilloscope displays the waveforms as shown in Figure 1-22

while adjusting the position and offset contro ls.

DTG5078 DTG5274

Performance Verification

DTG5334

Figure 1-22: Clock out random jitter samples

5. Verify that the RMS jitter is within 3 ps.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-65

Performance Verification

Random Jitter

This test verifies the data timing generator random jitter.

Equipment
required

Prerequisites

NOTE. When you perform this test, use the specified output module.

One sampling oscilloscope with an 80E03 sampling module (item 4)

Two 50 Ω SMA coaxial cables (item 6)

One SMA termination (item 16, DTG5274 and DTGM5334)

Two attenuators (item 17)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

If your mainframe is the DTG5274 or DTG5334, use the DT GM30 output modu le.
If your mainframe is the DTG5078, use the DTGM20 or DTGM21 output module.

1. Install the test hookup and preset the instrument controls:
a. Hook up the oscilloscope:

 Attach the attenuators to CH1 input and Trigger Direct Input of

sampling oscilloscope.

 Connect an SMA coaxial cable from the CH1 connector of the output

module, which is in slot A of the DTG5000 series mainframe, to the
CH1 input of the 80E03 sampling module.

DTG5078/DTG5274 rear
or DTG5334 front

CLOCK OUT

CH1 of output module

Figure 1-23: Random jitter tests

 Connect a second SMA coaxial cable from the CLOCK OUT at the

rear panel (DTG5078, DTG5274) or the front panel (DTG5334) to the
Trigger Direct Input of sampling oscilloscope. See Figure 1-23.

Oscilloscope (CSA8000B)

DTG5000 series

CH1 Input +
12 dB attenuator

50 Ω SMA coaxial cables

Trigger Direct Input +
12 dB attenuator

1-66 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

 (DTG5274 or DTG5334): Attach an SMA termination to the CH1

connector of the output module.

b. Set the oscilloscope controls as follows:

Ve rt i ca l

CH1 and CH2 scale . . . . . . . . . . . . . . . . . . . DTG5078: 150 mV/div

DTG5274/DTG5334: 100 mV/div
(with a 12 dB ATT)
Select Setup -> Vertical ->

External Attenuation, then select
12 dB.

Waveform CH1 . . . . . . . . . . . . . . . . . . . . . . . On

Horizontal

Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Approximately 20 ns

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 ps/div (DTG5078)

50 ps/div (DTG5274/DTG5334)

Acquisition

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sample

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Direct

Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Set to 50%

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Infinite Persistence

Histogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1 ON

Turn the Enable Histogram check
box on, select Horizontal radio
button, select Histogram from
Display Option, select Linear radio
button, click Acq tab and select
Condition from Stop After radio
button, select Histogram Hits, and
then input 8000 to the window.

2. Load the setup file (RNDJIT.dtg). Refer to Loading Files on page 1-13.

3. Push the RUN button of the data timing generator to light the R UN LED, and

then push the ALL OUTPUTS ON/OFF button to activate the output.

4. Verify that the oscilloscope displays the waveforms as shown in Figure 1-24

while adjusting the position and offset contro ls.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-67

Performance Verification

DTG5078 DTG5274

DTG5334

Figure 1-24: Random jitter waveform samples

5. Center the eye pattern on screen:
a. Adjust the oscilloscope position controls to locate the eye pattern CH1

waveform on center of screen.

b. Adjust the vertical offset to center the wav eform cross point on screen. See

Figure 1-24.

1-68 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

6. Place the Histogram Window to the cross point, where vertical width of the

window is set to approximately 0.2 div.

7. Change the vertical scale to 20 mV/div and horizontal scale to 20 ps/div.

8. Adjust the horizontal position, vertical offset, and Histogram W indow position

if the Histogram Windo w is out of the cross point. Set the vertical width of the
window to approximately 0.2 div.

9. Stop the acquisition at the hit count 8000. Verify that the RMS jitter values are

within the following range.

a. Push CLEAR DATA, and then push RUN/STOP button.
b. Read the Std Dev value.

 <4 ps (DTG5078)
 <3 ps (DTG5274)
 <3 ps (DTG5334)

Total Jitter

10. Repeat the same measurements for other channels.

This test verifies the data timing generator total jitter.

Equipment
required

Prerequisites

NOTE. When you perform this test, use the specified output module.

One sampling oscilloscope with an 80E03 sampling module (item 4)

Two 50 Ω SMA coaxial cables (item 6)

One SMA termination (item 16, DTG5274 and DTG5334)

Two attenuators (item 17)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

If your mainframe is the DTG5274 or DTG5334, use the DTGM30 output module .
If your mainframe is the DTG5078, use the DTGM20 or DTGM21 output module.

1. Install the test hookup and preset the instrument controls:

a. Hook up the oscilloscope:

 Perform the same hookup procedures as the Random Jitter test

described on page 1-66.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-69

Performance Verification

b. Set the oscilloscope controls as follows:

Ve rt i ca l

CH1 and CH2 scale . . . . . . . . . . . . . . . . . . . DTG5078: 150 mV/div

DTG5274/DTG5334: 100 mV/div
(with a 12 dB ATT)
Select Setup -> Vertical ->

External Attenuation, then select
12 dB.

Waveform CH1 . . . . . . . . . . . . . . . . . . . . . . . On

Horizontal

Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Approximately 20 ns

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 ps/div (DTG5078)

50 ps/div (DTG5274/DTG5334)

Acquisition

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sample

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Direct

Slope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Set to 50%

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Infinite Persistence

Histogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH1 ON

Turn the Enable Histogram check
box on, select Horizontal radio
button, select Histogram from
Display Option, select Linear radio
button, click Acq tab and select
Condition from Stop After radio
button, select Histogram Hits, and
then input 8000 to the window.

2. Load the setup file (TOTJIT.dtg). Refer to Loading Files on page 1-13.

3. Push the RUN button of the data timing generator to light the R UN LED, and
then push the ALL OUTPUTS ON/OFF button to activate the output.

1-70 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

4. Verify that the oscilloscope displays the waveforms as shown in Figure 1-25

while adjusting the position and offset contro ls.

DTG5078 DTG5274

Performance Verification

DTG5334

Figure 1-25: Total jitter waveform samples

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-71

Performance Verification

5. Place the Histogram Windo w to the cross point of the e y e pattern as sho wn in
Figure 1-25, where vertical width of the window is set to approximately

0.2 div.

6. Change the vertical scale to 20 mV/div and horizontal scale to 20 ps/div.

7. Adjust the horizontal position, vertical offset, and Histogram W indow position

if the Histogram Windo w is out of the cross point. Set the vertical widt h of the
window to approximately 0.2 div.

8. Stop the acquisition at the hit count 8000. Verify that the RMS jitter values are
within the following range.

a. Push CLEAR DATA, and then push RUN/STOP button.
b. Read the Std Dev value.

 <18 ps (DTG5078)
 <16 ps (DTG5274)

PG Mode

 <15 ps (DTG5334)

9. Repeat the same measurements for other channels.

This test verifies that the PG Mode of the DTG5000 series mainframe is functional.

Equipment
required

Prerequisites

One oscilloscope (TDS7154) (item 3)

Two 50 Ω SMA coaxial cables (item 6)

Two SMA (female)-BNC (male) adapters (item 9)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:
a. Hook up the oscilloscope:

 Attach SMA (female)-BNC (male) adapters to the oscilloscope CH1

input and CH2 input connectors.

 Connect an SMA coaxial cable from the CH1 connector of the output

module, which is in slot A of the DTG5000 series mainframe, to the
SMA-BNC adapter (CH1 input) of oscilloscope.

1-72 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

 Connect an SMA coaxial cable from the CH2 connector of the output

module, which is in slot A of the DTG5000 series mainframe, to the
SMA-BNC adapter (CH2 input) of oscilloscope.
See Figure 1-26.

CH1 of output
module

CH2 of output
module

Figure 1-26: PG Mode tests

b. Set the oscilloscope controls as follows:

Ve rt i ca l

CH1 and CH2 scale . . . . . . . . . . . . . . . . . . . 500 mV/div

CH1 and CH2 input impedance . . . . . . . . . . 50 Ω

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 ns/div

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH2

Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V

DTG5000 series

Oscilloscope (TDS7154)

CH1 Input
+ SMA (female)-BNC (male) adapter

50 Ω SMA coaxial cable

CH2 Input
+ SMA (female)-BNC
(male) adapter

2. Load the setup file (PGMODE.dtg). Refer to Loading Files on page 1-13.

3. Push the RUN button of the data timing generator to light the R UN LED, and

then push the ALL OUTPUTS ON/OFF button to activate the output.

4. Verify that 100 MHz square waveform is displayed on the oscilloscope screen.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-73

Performance Verification

5. Verify the PG mode functions:
a. Push the TIMING button at the front panel of DTG5000 series mainframe

to display the Timing Window.

b. Move the cursor to Frequency and change the frequency to 200 MHz.
c. Verify that the frequency readout of displayed waveform is 200 MHz on

the oscilloscope screen.

d. Return the Frequency to 100 MHz, and then set the DTG5000 series

mainframe slot A CH1 DELAY to 0.0020000 µs.

e. Verify on the oscilloscope screen that the rising edge of CH1 is delayed by

approximately 2 ns compared to CH2 rising edge.

6. Verify the CH1 duty:
a. Change the slot A CH1 Duty to 30%.
b. Verify on the oscilloscop e screen that CH1 Duty of displayed waveform

also indicates approximately 30%.

c. Change the CH1 Duty to 50%, and then change the slot A CH1 Polarity

to Invert.

d. Verify on the oscilloscope screen that the displayed waveform is inverted.

7. (DTGM10 and DTGM20 only):
a. Push the RUN button of DTG5000 series mainframe to light the RUN

LED.

b. Move cursor to Slew Rate with the TAB key.
c. Decrease the slew rate value by rotating the rotary encoder

counterclockwise.

d. V erify the displayed wa veform: Confirm that the rising edge becomes slo w

on the oscilloscope screen.

1-74 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

Master-Slave Operation

This test verifies that the Master-Slave operation of the DTG5000 series
mainframe is functional.

Equipment
required

Prerequisites

One oscilloscope (TDS7154) (item 3)

Two 50 Ω SMA coaxial cables (item 6)
Two 50 Ω BNC coaxial cables (item 7)

Two SMA (male)-BNC (female) adapters (item 8)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:

a. Hook up the oscilloscope:

 Use an SMA coaxial cable to connect CLK IN and CLK OUT1 of the

Maser/Slave Connection plate at the rear panel of DTG5000 series
mainframe.

 Use a second SM A coaxial cable to connect CLK IN and CLK OUT1

of the Maser/Slave Connection plate at the rear panel of DTG5000
series mainframe.

 Attach an SMA (male)-BNC (female) adapter to the CLOCK OUT at

the rear panel (DTG5078, DTG5274) or the front panel (DTG5334).

 Connect a BNC coaxial cable from the CLOCK OUT to the CH1

input of oscilloscope through an SMA-BNC adapter.

 Attach an SMA (male)-BNC (female) adapter to the CH1 connector of

the output module, which is in slot A of the DTG5000 series
mainframe.

 Connect a BNC coaxial cable from the CH1 connector of output

module to the CH2 input of oscilloscope through an SMA-BNC
adapter. See Figure 1-27.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-75

Performance Verification

DTG5078/DTG5274 rear
or DTG5334 front

CLOCK OUT
+ SMA (male)-BNC (female) adapter

DTG5000 series

Oscilloscope (TDS7154)

!

!

!

50 Ω BNC coaxial cable

CH1 Input

CH2 Input

CH1 output
+ SMA (male)-BNC (female) adapter

50 Ω BNC coaxial cable

DTG5078 Master Slave connector location

MASTER/SLAVE CONNECTION

CLK IN CLK OUT 1JUMP IN JUMP OUT 2 CLK OUT 2 CLK OUT 3

CLK INJUMP OUT 1 JUMP OUT 3 CLK OUT 1 CLK OUT 2 CLK OUT 3

FOR MASTER/SLAVE OPERATION ONLY

PHASE LOCK

EXTERNAL

10 MHz REF IN

0.2 V

pk-pk M I N

3

V pk-pk MAX

10 MHz REF OUT

2.4 V

pk-pk

FROM 50 

PHASE

LOCK IN

0.2 V
3

V pk-pk MAX

pk-pk M I N

0.4 V pk-pk M I N
2

V

pk-pk MAX

CLOCK

-2 V
FROM 50

-2 V

FROM 50 

OUTEXTERNAL IN

TO 7

V

OUT

TO 7

V

DTG5274 Master Slave connector location

CLOCK

OUTEXTERNAL IN

MASTER/SLAVE CONNECTION

CLK IN CLK OUT 1JUMP IN JUMP OUT 2 CLK OUT 2 CLK OUT 3

PHASE LOCK

EXTERNAL

10 MHz REF IN

PHASE

LOCK IN

0.4 V pk-pk M I N
V

pk-pk MAX

2

FROM 50 

OUT

-2 V

TO 7

FROM 50 

V

CLK INJUMP OUT 1 JUMP OUT 3 CLK OUT 1 CLK OUT 2 CLK OUT 3

V

FOR MASTER/SLAVE OPERATION ONLY

0.2 V

pk-pk M I N

V pk-pk MAX

3

10 MHz REF OUT

2.4 V

pk-pk

FROM 50 

0.2 V
3

pk-pk M I N

V pk-pk MAX

-2 V

TO 7

DTG5334 Master Slave connector location

MASTER/SLAVE CONNECTION

CLK IN CLK OUT 1JUMP IN JUMP OUT 2 CLK OUT 2 CLK OUT 3

CLK INJUMP OUT 1 JUMP OUT 3 CLK OUT 1 CLK OUT 2 CLK OUT 3

FOR MASTER/SLAVE OPERATION ONLY

PHASE LOCK

EXTERNAL

10 MHz REF IN

0.2 V

pk-pk M I N

V pk-pk MAX

3

10 MHz REF OUT

2.4 V

pk-pk

FROM 50 

PHASE

LOCK IN

0.2 V
V pk-pk MAX

3

pk-pk M I N

(DTG5334 Front Panel)

Figure 1-27: Master–Slave operation tests

1-76 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

b. Set the oscilloscope controls as follows:

Ve rt i ca l

CH1 and CH2 scale . . . . . . . . . . . . . . . . . . . 500 mV/div

CH1 and CH2 input impedance . . . . . . . . . . 50 Ω

Horizontal

Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 ns/div

Trigger

Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH2

Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positive

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V

2. Set the data timing generator controls and load the setup file:
a. Exit the DTG software.

NOTE.

Move the cursor to the bottom left corner of the scr e en to get the Windows

Start menu. Or, press the CTRL and ESC ke ys simultaneously to open the Windows
Start menu.

b. From the Windows Start menu, select Programs, select Tektronix,

select DTG5000, and then select DTG5000 Configuration Utility.
See Figure 1-28.

Figure 1-28: DTG5000 Configuration Utility dialog box

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-77

Performance Verification

c. Confirm that Online is selected in the Mode box.
d. Select Master/Slave#1 from the System Configuration pull-down menu.
e. Select IP Address at the Slaves Set by check box, and then enter 0.0.0.0

to the IP Address box.

f. Click OK to exit the window. The following dialog box appears and asks

you to restart the DTG software.

g. Click OK, and then restart the DTG software.
h. Load the setup file (MASTER.dtg). Refer to Loading Files on page 1-13.

3. Push the RUN button of the data timing generator to light the R UN LED, and
then push the ALL OUTPUTS ON/OFF button to activate the output.

4. Confirm that the oscilloscope displays the waveforms such as shown in

Figure 1-29.

CH1

CH2

Figure 1-29: Master-Slave operation waveform sample

5. Disconnect the SMA cables from the CLK OUT1 and CLK OUT1
Reconnect the cables to CLK OUT2 and CLK OUT2

, respectively.

.

1-78 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Performance Verification

6. Verify that the oscilloscope displays the same waveforms as step 4 on the

screen.

7. (DTG5078 only): Disconnect the SMA cables from the CLK OUT2 and CLK

OUT2. Reconnect the cables to CLK OUT3 and CLK OUT3, respectively.

Verify that the oscilloscope displays the same waveforms as step 4 on the
screen.

8. Before proceeding with the next test item, do the following substeps.

a. Exit the DTG software.

NOTE. Mover cursor to the button left corner of the screen to get the W indows Start

menu. Or, press the CTRL + ESC keys simultaneously to open the Start menu.

b. From the Windows Start menu, select Programs, select Tektronix, select

DTG5000, and then select DTG5000 Configuration Utility.

See Figure 1-28 on page 1-77.

c. Select Master from the System Configuration pull-down menu.
d. Click OK to exit the window. The dialog box appears and asks you to

restart the DTG software. Click OK, and then restart the DTG software.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-79

Performance Verification

Output Module

The following procedures check those characteristics that relate to the output
modules that are checked under Output Module in Specifications. Refer to
page 2-32.

NOTE. When you perform the DTG5000 series output module performance tests,

you can install the module to any slot of mainframe.
There are six types of output modules: DTGM10, DTGM20, DTGM21, DTGM30,

DTGM31, and DTGM32. The same performance test procedures are applied to
these modules, however, each module has different specifications. If you want to
check CH3 and CH4 of four channel module such as DTGM10, DTGM20, or
DTGM21, you must use the DTG5078 mainframe.

Data Output DC Level

This test verifies the data output DC lev el accurac y of the DTG5000 series output
module.

Equipment
required

Prerequisites

One digital multi meter (item 2)

One 50 Ω BNC coaxial cable (item 7)

One SMA (male)-BNC (female) adapter (item 8)

One BNC (female)-dual banana plug (item 13)

One Feed-through 50 Ω termination (item 15)

The DTG5000 Series Data Timing Generator must meet the prerequisites
listed on page 1-11.

1. Install the test hookup and preset the instrument controls:
a. (DTGM21 only): Set the output impedance to 50 Ω for all the four

channels on the module before installing it in the mainframe and
applying power.

b. Hook up the digital multi meter:

 Attach a BNC (female)-dual banana adapter to the digital multi meter

input connector, and then attach a 50 Ω termination to the BNC–dual
banana adapter.

 Attach an SMA (male)-BNC (female) adapter to the CH1 connector of

the output module, which is in slot A of the DTG5000 series
mainframe.

 Connect a BNC coaxial cable from the SMA-BNC adapter (CH1

output of output module) to the 50 Ω termination of digital multi
meter. See Figu re 1-30 .

1-80 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

CH1 output
+ SMA (male)-BNC (female) adapter

Figure 1-30: Data output DC level tests

c. Set the digital multi meter controls:

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Direct Voltage

Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto

DTG5000 series

50 Ω BNC coaxial cable

Performance Verification

DMM

Input connector
+ BNC-dual banana adapter

+ BNC 50 Ω termination

2. If you want to perform the data output DC level tests for DTGM10, DTGM20,

or DTGM21, continue the following steps. If your output module is DTGM30,
DTGM31, or DTGM32, jump to step 5.

3. Do the following substeps to perform the high/l ow level voltage

measurements:

a. Load the setup file (OM_H.dtg). Refer to Loading Files on page 1-13.
b. Push the RUN button of the data timing generator to light the RUN LED,

and then push the ALL OUTPUTS ON/OFF button to activate the output.

c. Push the LEVEL button to set the high level and corresponding low le v el

voltage for the CH1 output as shown in Table 1-4 (DTGM10), Table 1-6
(DTGM20), or Table 1-8 (DTGM21).

d. Verify that the DMM readings are within the voltage limits.
e. Load the setup file (OM_L.dtg). Refer to Loading Files on page 1-13.
f. Push the LEVEL button to set the lo w level and corresponding high lev el

voltage for the CH1 output as shown in Table 1-5 (DTGM10), Table 1-7
(DTGM20), or Table 1-9 (DTGM21).

g. Verify that the DMM readings are within the voltage limits.

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-81

Performance Verification

4. Change the connections and repeat the measurements:
a. Change the connection of BNC cable from the CH1 output to CH2, CH3,

and CH4 output.

b. Perform the same measurements as step 3 for every channel.
c. Verify that the high level and low level measurements are within the

specified voltage limits.

5. (DTGM21 only):
a. Turn off the mainframe to remove the module.
b. Change the output impedance to 23 Ω for all the four channels on the

module.

c. Reinstall the module in the mainframe and apply power.
d. Repeat steps 3 and 4 for the output impedance of 23 Ω using the

Table 1-10 and 1-11.

Table 1-4: DTGM10 High Level Voltage Accuracy

Setup value

High Level Output Voltage LimitsHigh Level Voltage Low Level Voltage

–1.0 V –1.5 V –1.08 V to –0.92 V

0 V –1.5 V –0.05 V to + 0.05 V

1 V –1.5 V 0.92 V to 1.08 V

2 V –1.5 V 1.89 V to 2.11 V

Table 1-5: DTGM10 Low Level Voltage Accuracy

Setup value

Low Level Voltage High Level Voltage

–1.0 V 2.0 V –1.08 V to –0.92 V

0 V 2.0 V –0.05 V to + 0.05 V

1 V 2.0 V 0.92 V to 1.08 V

1.75 V 2.0 V 1.6475 V to 1.8525 V

Low Level Output Voltage Limits

1-82 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference

Table 1-6: DTGM20 High Level Voltage Accuracy

Setup value

Performance Verification

High Level Voltage Low Level Voltage

–0.9 V –1.0 V –0.977 V to –0.823 V

0 V –1.0 V –0.05 V to + 0.05 V

1.0 V –1.0 V 0.92 V to 1.08 V

2.0 V –1.0 V 1.89 V to 2.11 V

High Level Output Voltage Limits

Table 1-7: DTGM20 Low Level Voltage Accuracy

Setup value

Low Level Output Voltage LimitsLow Level Voltage High Level Voltage

–1.0 V 2.5 V –1.08 V to –0.92 V

0 V 2.5 V –0.05 V to + 0.05 V

1.0 V 2.5 V 0.92 V to 1.08 V

2.0 V 2.5 V 1.89 V to 2.11 V

Table 1-8: DTGM21 High Level Voltage Accuracy (Output Impedance 50 ohm)

Setup value

High Level Voltage Low Level Voltage

–1.1 V –1.2 V –1.183 V to –1.017 V

0 V –1.2 V –0.05 V to + 0.05 V

1.5 V –1.2 V 1.405 V to 1.595 V

2.7 V –1.2 V 2.569 V to 2.831 V

High Level Output Voltage Limits

Table 1-9: DTGM21 Low Level Voltage Accuracy (Output Impedance 50 ohm)

Setup value

Low Level Voltage High Level Voltage

–1.2 V 2.7 V –1.286 V to –1.114 V

0 V 2.7 V –0.05 V to + 0.05 V

1.5 V 2.7 V 1.405 V to 1.595 V

2.6 V 2.7 V 2.472 V to 2.728 V

Low Level Output Voltage Limits

DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference 1-83

Performance Verification

Table 1-10: DTGM21 High Level Voltage Accuracy (Output Impedance 23 ohm)

Setup value

High Level Voltage Low Level Voltage

–1.55 V –1.65 V –1.6465 V to –1.4535 V

0.5 V –1.65 V 0.435 V to 0.565 V

2 V –1.65 V 1.89 V to 2.11 V

3.7 V –1.65 V 3.539 V to 3.861 V

High Level Output Voltage Limits

Table 1-11: DTGM21 Low Level Voltage Accuracy (Output Impedance 23 ohm)

Setup value

Low Level Voltage High Level Voltage

–1.65 V 3.7 V –1.7495 V to –1.5505 V

0.5 V 3.7 V 0.435 V to 0.565 V

2 V 3.7 V 1.89 V to 2.11 V

3.6 V 3.7 V 3.442 V to 3.758 V

Low Level Output Voltage Limits

6. Do the following substeps to perform the high/low le vel voltage measurements
for the DTGM30, DTGM31, or DTGM32:

a. Load the setup file (OM_H.dtg). Refer to Loading Files on page 1-13.
b. Push the RUN button of the data timing generator to light the RUN LED,

and then push the ALL OUTPUTS ON/OFF button to activate the output.

c. Push the LEVEL button to set the high level and corresponding low le v el

voltage for the CH1 output as shown in Table 1-12. Verify that the DMM
reading is within the voltage limits.

d. Load the setup file (OM_L.dtg). Refer to Loading Files on page 1-13.
e. Push the LEVEL button to set the low level and corresponding high level

voltage for the CH1 output as shown in Table 1-13. Verify that the DMM
reading is within the voltage limits.

1-84 DTG5078 & DTG5274 & DTG5334 Data Timing Generator Technical Reference