Tektronix DSA8300 Primary User

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DSA8300 Digital Serial Analyzer

ZZZ

Quick Start User Manual

*P071289704*

071-2897-04

DSA8300 Digital Serial Analyzer

ZZZ

Quick Start User Manual

www.tek.com

071-2897-04

tional copyright laws and international treaty provisions.

Tektronix pro previously published material. Speciﬁcations and price change privileges reserved.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

TEKPROBE and FrameScan are registered trademarks of Tektronix, Inc.

ducts are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all

Contacting Tektronix

Tektronix, Inc. 14150 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.tek.com to ﬁnd contacts in your area.

Warranty

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. Parts, modules and replacement products used by Tektronix for warranty work may be new or reconditioned to like new performance. All replaced parts, modules and products become the property of Tektronix.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix, 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 a ttempts 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 E XCLU S IVE 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.

[W2 – 15AUG04]

Table of Contents

Important safety information .......................................................................................................... iii

General safety summary......................................................................................................... iii

Service safety summary ......................................................................................................... v

Terms in this manual .......................................................................... . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Symbols and terms on the product...................................................................................... . .. . . . . . vi

Compliance information .............................................................................................................. vii

EMC compliance ................................................................................................................ vii

Safety compliance.............................................................................................................. viii

Environmental considerations ................................................................................................... x

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

Documentation ...................................................................................................................xi

Conventions used in this manual................................................................................................ xi

Key features ........................................................................................................................... 1

Install your instrument................................................................................................................. 3

Standard accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Operating considerations ........................................................................................................ 4

Powering the instrument on and off ............................................................................................. 6

Adding a second monitor ........................................................................................................ 6

Installing modules .............................................................................................. . .. . . . . . . . . . . . . . ....... 9

Typical module installations......................................................................................................9

Install a module ...................................................... ... ... .. . .. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Remove a module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .............................................. . .. . . . . . . . . . . . .. . ........ 11

Powered-on module conﬁguration.............................................................................................. 11

Getting acquainted with your instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Front panel . . . . . . . . . . . .............................................. . .. . . . . . . . . . . . . . . ............................................13

Control panel .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . ............................................................. . . ..14

Rear panel. . .. . . . . . . . . . . . . . . . . . ... .......................................................... . ....................................15

Computer I/O panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . ... .............................................................. 16

The user interface............................................................................................................... 17

Display - single waveform view................................................................................................. 18

lay - magniﬁed waveform views ........................................................................................... 19

Disp

Accessing application help. ..................................................................................................... 20

Inspect your instrument .............................................................................................................. 21

Verify internal diagnostics pass. . . . . . . . . . . . . . . . . . . . ............................................................................. 21

Optimizing measurement accuracy.................................................................................................. 23

Signal path compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Dark-level and user wavelength gain compensations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . ........... 26

Align acquisition (and TDR steps) for two-channel modules ............................................ . . . . . . . . . . . . . . . . . . . . . . 28

Acquisition ............................................................................................................................ 29

Setting up signal input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. . ... ... ... .................................................. 29

Using factory default setup ..................................................................................................... 31

Using Autoset ................................................................................................................... 32

Table of Content

DSA8300 Q uick Start User Manual i

Table of Content

Triggers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . ... ... ................................................................................ 38

Waveform measurements............................................................................................................44

Skew and deskewing ................................................................................................................. 69

Cleaning the instrument ................................................................... . .......................................... 81

Restoring the operating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 82

Index

Accessing the Setup dialog boxes ............................................................................................. 33

Changing the ac

Waveform databases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . ... .................................................................... 35

Setting the display style......................................................................................................... 36

Triggering concepts............................................................................................................. 38

Setting trigger controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Setting Patt

Checking trigger status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Taking auto

Turning off automatic measurements .......................................................................................... 48

Cursor measurements .......................................................................................................... 49

Math wavef

Display a communication signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Mask testing .....................................................................................................................55

FrameSca

To use TDR...................................................................................................................... 62

Phase reference............................................................................ . .................................... 64

Histogra

Document your results.......................................................................................................... 68

Methods

Setup considerations and procedures . ......................................................................................... 71

Acquisition deskew procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

TDR ste

Exterior cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. . .. . . .81

anel display cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Flat p

Optical connector cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . ... ..... 81

ring the operating system from the instrument hard disk drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Resto

quisition mode................................................................................................. 34

ern Sync and FrameScan controls ................................................................................ 42

matic measurements ............................................................................................... 44

orms................................................................................................................. 52

n ...................................................................................................................... 61

ms ...................................................................................................................... 67

to adjust skew......................................................................................................... 70

p deskew procedure .......................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . ............................. 77

ii DSA8300 Q uick Start User Manual

Important safet

y information

Important saf

This manual contains information and warnings that must be followed by the user for safe operation and to keep the product in a safe condition.

To safely perform service on this product, additional information is provided at the end of this section. (See page v, Service safety summary.)

ety information

General safety summary

Use the prod or any products connected to it. Carefully read all instructions. Retain these instructions for future reference.

Comply with local and national safety codes.

For c orrect and safe operation of the product, it is essential that you follow generally accepted safety procedures in addition to the safety precautions speciﬁed in this manual.

The product is designed to be used by trained personnel only.

Only qualiﬁed personnel who are aware of the hazards involved should remove the cover for repair, maintenance, or adjustme

Before us

This pro

uct only as speciﬁed. Review the following safety precautions to avoid injury and prevent damage to this product

nt.

e, always check the product with a known s ource to be sure it is operating correctly.

duct is not intended for detection of hazardous voltages.

Use pers

While us component manuals for warnings and cautions related to operating the system.

When incorporating this equipment into a system, the safety of that system is the responsibility of the assembler of the system.

onal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed.

ing this product, you may need to access other parts of a larger system. Read the safety sections of the other

To avoid ﬁre or personal injury

NG. To reduce the risk of ﬁre and shock, ensure that the mains supply voltage ﬂuctuations do not exceed 10% of the

WARNI

operating voltage range.

Use proper power cord. Use only the power cord speciﬁed for this product and certiﬁed for the country of use.

Do not use the provided power cord for other products.

Ground the product. This product is grounded through the grounding conductor of the power cord. To avoid electric

shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output terminals of the product, make sure that the product is properly grounded.

Power disconnect. The power cord disconnects the product from the power source. See instructions for the location. Do

not position the equipment so that it is difﬁcult to disconnect the power cord; it must remain accessible to the user at all times to a

llow for quick disconnection if needed.

DSA8300 Q uick Start User Manual iii

Important safet

Observe all terminal ratings. To avoid ﬁre or shock hazard, observe all ratings and markings on the product. Consult

the product man

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

The measuring terminals on this product are not rated for connection to mains or Category II, III, or IV circuits.

Do not operate without covers. Do not operate this product with covers or panels removed, or with the case open.

Hazardous voltage exposure is possible.

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

Do not operate with suspected failures. If you suspect that there is damage to this product, have it inspected by

qualiﬁed service personnel.

y information

ual for further ratings information before making connections to the product.

Disable the product if it is damaged. Do not use the product if it is damaged or operates the product, turn it off and disconnect the power cord. Clearly mark the product to prevent its further operation.

Before use, inspect voltage probes, test leads, and accessories for mechanical damage and replace when damaged. Do not use probes or test leads if they are damaged, if there is exposed metal, or if a w ear indicator shows.

Examine the exterior of the product before y ou use it. Look for cracks or missing pieces.

Use only speciﬁed replacement parts.

incorrectly. If in doubt about safety of

Use proper fuse. Use only the fuse type and rating speciﬁed for this product.

Do not operate in wet/damp conditions. Be aware that condensation may occur if a unit is moved from a cold to a

warm environment.

Do not operate in an explosive atmosphere.

Keep product surfaces clean and dry.

Remove the input signals before you clean the product.

Provide proper ventilation. Refer to the installation instructions in the manual for details on installing the product

so it has proper ventilation.

Slots and openings are provided for ventilation and should never be covered or otherwise obstructed. Do not push objects into any of the openings.

Provide a safe working environment. Always place the product in a location convenient for viewing the display

and indicators.

Avoid improper or prolonged use of keyboards, pointers, and button pads. Improper or prolonged keyboard or pointer use may result in serious injury.

Be sure your work area meets applicable ergonomic standards. Consult with an ergonomics professional to avoid stress injuries.

Use care when lifting and carrying the product. This product is provided with handles for lifting and carrying.

WARNING. The product is heavy. To reduce the risk of personal injury or damage to

carrying the product.

Use only the Tektronix rackmount hardware speciﬁed for this product.

iv DSA8300 Q uick Start User Manual

the device get help when lifting or

Servicesafetysummary

The Service safety summary section contains additional information required to safely perform service on the product. Only qualiﬁed personnel should perform service procedures. Read this Service safety summary and the General safety summary before performing any service procedures.

To avoid electric shock. Do not touch exposed connections.

Do not service alone. Do not perform internal service or adjustments of this product unless another person capable of

rendering ﬁrst aid and resuscitation is present.

Important safet

y information

Disconnect

power before removing any covers or panels, or opening the case for servicing.

power.

To avoid electric shock, switch off the product power and disconnect the power cord from the mains

Use care when servicing with power on. Dangerous voltages or currents may exist in this product. Disconnect

power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components.

Verify sa

fety after repair.

Always recheck ground continuity and mains dielectric strength after performing a repair.

DSA8300 Q uick Start User Manual v

Important safet

y information

Terms in this manual

These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property.

Symbols and 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.

When this symbol is marked on the product, be sure to consult the manual to ﬁnd out the nature of the potential hazards and any actions which have to be taken to avoid them. (This symbol may also be used to refer the user to ratings

The following symbol(s) may appear on the product:

in the manual.)

vi DSA8300 Quick Start User Manual

Compliance info

rmation

Compliance in

This section lists the EMC (electromagnetic compliance), safety, and environmental standards with which the instrument complies.

EMC compliance

EC declarati

Meets intent of Directive 2004/108/EC for Electromagnetic Compatibility. Compliance was demonstrated to the following speciﬁcations as listed in the Ofﬁcial Journal of the European Communities:

EN 61326-1:2006, EN 61326-2-1:2006. EMC requirements for electrical equipment for measurement, control, and

laborator

CISPR 11:2

IEC 61000

IEC 6100

on of conformity – EMC

123

yuse.

003. Radiated and conducted emissions, Group 1, Class A

-4-2:2001. Electrostatic discharge immunity

-4-3:2002. RF electromagnetic ﬁeld immunity

-4-4:2004. Electrical fast transient / burst immunity

0-4-5:2001. Power line surge immunity

0-4-6:2003. Conducted RF immunity

0-4-11:2004. Voltage dips and interruptions immunity

formation

EN 61000-3-2:2006. AC power line harmonic emissions

EN 6100

0-3-3:1995.

Voltage changes, ﬂuctuations, and ﬂicker

European contact.

Tektronix UK, Ltd. Western Peninsula Western Road Bracknell, RG12 1RF United Kingdom

product is intended for use in nonresidential areas only. Use in residential areas may cause electromagnetic interference.

This

Emissions which exceed the levels required by this standard may occur when this equipment is connected to a test object.

To ensure compliance with the EMC standards listed here, use high quality shielded interface cables.

Horizontal timing susceptibility of the optical sampling modules and their internal clock recovery trigger signals usually increases the horizontal timing jitter when external electromagnetic ﬁelds are applied. For ﬁelds up to 3 V/m, the increase in the horizontal high-frequency RMS jitter is typically less than 3 ps RMS of jitter, added using the square-root-of-the-sum-of-the-squares method.

xample, if an 80C01–CR operating in clock-recovery trigger mode exhibits 3.5 ps RMS of edge jitter, with no EMC ﬁeld

For e applied and for an ideal jitterless input, then for applied ﬁelds up to 3 V/m the edge jitter, degradation would typically result in a total RMS jitter of:

DSA8300 Q uick Start User Manual vii

Compliance info

Performance Criterion C applied at the 70%/25 cycle Voltage-Dip and the 0%/250 cycle Voltage-Interruption test levels (IEC 61000-4-11). If the instrument powers down upon a voltage dip or interruption, it will take longer than ten seconds to reboot.

With an 80E01 Electrical Sampling module, up to 15 mV signals as deﬁned in the IEC 61000-4-3 and IEC 61000-4-6 tests.

Australia / New Zealand declaration of conformity – EMC

rmation

random noise is allowed when the instrument is subjected to ﬁelds and

RMS

Complies w it

CISPR 11:200 EN 61326-2-1:2006.

h the EMC provision of the Radiocommunications Act per the following standard, in accordance with ACMA:

3. Radiated and Conducted Emissions, Group 1, Class A, in accordance with EN 61326-1:2006 and

Safety compliance

This section lists the safety standards with which the product complies and other safety compliance information.

EU declaration of conformity – low voltage

Compliance was demonstrated to the following speciﬁcation as listed in the Ofﬁcial Journal of the European Union:

Low Voltage Directive 2006/95/EC.

EN 61010-1. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: Gener

U.S. nationally recognized testing laboratory listing

UL 61010-1. Safety R equirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements.

al Requirements.

Canadian certiﬁcation

CAN/CSA-C22.2 No. 61010-1. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory

Part 1: General Requirements.

Use –

Additional compliances

IEC 61010-1. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements.

Equipment type

Test and measuring equipment.

afety class

Class 1 – grounded product.

viii DSA8300 Q uick Start User Manual

Compliance info

rmation

Pollution degree descriptions

A measure of the contaminants that could occur in the environment around and within a product. Typically the internal environment inside a product is considered to be the same as the external. Products should be used only in the environment for which they are rated.

Pollution degree 1. No pollution or only dry, nonconductive pollution occurs. Products in this category are generally encapsulated, hermetically sealed, or located in clean rooms.

Pollution degree 2. Normally only dry, nonconductive pollution occurs. Occasionally a temporary conductivity that is caused by condensation m ust be expected. This location is a typical ofﬁce/home environment. Temporary condensation occurs only when the product is out of service.

Pollution degree 3. Conductive pollution, or dry, nonconductive pollution that becomes conductive due to condensation. These are sheltered locations where neither temperature nor humidity is c ontrolled. The area is protected from direct sunshine, rain, or direct wind.

Pollution degree 4. Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical outdoor locations.

Pollution degree rating

Pollution degree 2 (as deﬁned in IEC 61010-1). Rated for indoor, dry location use only.

IP rating

IP20 (as deﬁned in IEC 60529).

Measurement and overvoltage category descriptions

Measurement terminals on this product may be rated for measuring mains voltages from one or more of the following

ories (see speciﬁc ratings marked on the product and in the manual).

categ

ory II. Circuits directly connected to the building wiring at utilization points (socket outlets and similar points).

Categ

gory III. In the building wiring and distribution system.

Cate

gory IV. At the source of the electrical supply to the building.

Cate

NOTE. Only mains power supply circuits have an overvoltage category rating. Only measurement circuits have a

measurement category rating. Other circuits within the product do not have either rating.

Mains overvoltage category rating

Overvoltage category II (as deﬁned in IEC 61010-1).

DSA8300 Q uick Start User Manual ix

Compliance info

rmation

Environmental considerations

This section provides information about the environmental impact of the product.

Product end-of-life handling

Observe the following guidelines when recycling an instrument or component:

Equipment recycling. Production of this equipment required the extracti on and use of natural resources. The equipment

may contain substances that could be harmful to the environment or human health if improperly handled at the product’s end of life. In order to avoid release o f such substances into the environment and to reduce the use of natural resources, we encourage you to recycle this product i n an appropriate system that will ensure that most of the materials are reused or recycled appropriately.

This symbol indicates that this product complies with the applicable European Union requirements according to Directives 2002/96/EC and 2006/66/EC on waste ele ctrical and electronic equipment (WEEE) and batteries. For information about recycling options, c heck the Support/Service section of the Tektronix Web site (www.tektronix.com).

Perchlorate materials. This product contains one or more type CR lithium batteries. According to the s tate

of Califo www.dtsc.ca.gov/hazardouswaste/perchlorate for additional information.

rnia, CR lithium batteries are classiﬁed as perchlorate materials and require special handling. See

Restriction of hazardous substances

This product is classiﬁed as an industrial monitoring and control instrument, and is not required to comply with the substance restrictions of the recast RoHS Directive 2011/65/EU until July 22, 2017.

x DSA8300 Quick Start User Manual

Preface

Documentation

This manual describes the installation and operation of the DSA8300 Digital Serial Analyzer in cluding basic operation and concepts. For more detailed information, see the application help on your instrument.

NOTE. The screen images in this manual may differ slightly from other versions of product software.

Additional information is available through a variety of sources. The following table points to the location of different types of information available for this product.

Type of information Location

Unpacking, installation, operation and overviews

In-depth operation, UI help, programming help Instrument application help

Performance veriﬁcation and speciﬁcations Product documentation CD

Product software Product software CD

Service Service manual

PDF ﬁles of instrument and modules manuals Product software CD

Preface

Quick Start User Manual

www.tektronix.com/software

www.tektronix.com/manuals

Conventions used in this manual

The following icons may be used in this manual.

Rear power

panel

Fron power

t panel

Connect power

Netw

ork

PS2 USB

DSA8300 Q uick Start User Manual xi

Preface

xii DSA8300 Q uick Start User Manual

Key features

The DSA8300 is a state-of-the-art equivalent time sampling oscilloscope that provides the highest ﬁdelity measurement and analysis capabilities for communications signal analysis, serial data network analysis, and serial data link analysis applications.

Highest ﬁdelity signal capture

Key features

Very Low Tim

425 fs typic

<100 fs typ

Best verti

Electrica

Optical r full range) to <0.6 μW for the 80C10B (30 mW full range)

e-base Jitter:

al on up to 8 simultaneously acquired c hannels

ical on up to 6 channels with 82A04B phase reference module

cal resolution (16 bit A/D):

l resolution: <20 μV LSB (for 1 V full range)

esolution depends on the dynamic range of the optical module ranges from <20 nW for the 80C07B (1 mW

Flexible conﬁgurations

The DSA8300 supports up to 8 simultaneously acquired signals

A wide variety of optical, electrical, and accessory modules to support your speciﬁc testing requirements

Use the new Change/View Module Conﬁg function to install or remove modules without powering down the instrument

Optical modules

Fully i ntegrated optical modules that support all standard optical data rates from 155 Mb/s to 100 Gb/s

Certiﬁed optical reference receivers support speciﬁed requirements for standards-mandated compliance testing

Optical bandwidths to >80 GHz

High optical sensitivity and low noise as well as the wide dynamic range of the optical sampling modules allows accurate

ing and characterization of short-reach to long-haul optical communications standards

test

y calibrated clock recovery solutions; no need to manually calibrate for data pick-off losses

Full

ibrated extinction ratio measurements ensure repeatability of extinction ratio measurements to <0.5 dB among

Cal systems with modules with this factory calibration option

Electrical modules

Electrical bandwidths to >70 GHz

Very low-noise electrical samplers (280 μV at 20 GHz, 450 μVat60GHz,typical)

Selectable bandwidths (module 80E07B, 80E08B, 80E09B, 80E10B, 80E11, 80E11X1) allow the user to trade-off sampler bandwidth and noise for optimal data acquisition performance

DSA8300 Q uick Start User Manual 1

Key features

Remote samplers (module 80E07B, 80E08B, 80E09B, 80E10B, 80E11, 80E11X1) or compact sampling extender module cables support

minimal signal degradation by locating the sampler in close proximity to the device under test

World’s highe characterization and high dynamic range for S-parameter measurements to 50 GHz

st-performance integrated TDR (10 ps typical step rise time) supports exceptional impedance discontinuity

Analysis

Standard Analysis Capabilities:

Complete suite of over 120 automated measurements for NRZ, RZ, and Pulse signal types

Automated mask testing with over 80 industry-standard masks. New masks can be imported into the DSA8300 to support new emerging standards. In addition, users can deﬁne their own masks for automated mask testing

Vertical and Horizontal histograms for statistical analysis of acquired waveforms

Vertical, Horizontal, and Waveform cursors (with measurements)

Jitter, Noise, BER, and Serial Data Link Analysis is provided through the 80SJNB Basic and Advanced software application options

Advanced TDR Analysis, S-parameter measurements, Simulation Model Extraction, and Serial Link Simulation capabilities are provided through the IConnect® Software application options

High test throughput

High Sample Acquisition Rate up to 300 kS/s per channel

Efﬁcient Programmatic Interface (IEEE-488, Ethernet, or local processor access) enable High Test Throughput

2 DSA8300 Quick Start User Manual

Install your instrument

Unpack the instrument and check that you received all items listed as Standard Accessories. Recommended accessories and probes, instrument options, and upgrades are listed in the application help. Check the Tektronix Web site (www.tektronix.com) for the most current information.

Standard accessories

Accessory Tektronix part number

DSA8300 Digital Serial Analyzer Quick Start User Manual

Certiﬁcate of Traceable Calibration for p roduct at initial shipment

Business reply card Not orderable

Keyboard 119-7083-00

Mouse 119-7054-00

Instrument front cover

Accessory pouch 016-1441-00

Touch screen styluses (2)

ESD wrist strap with 6 foot coiled cord

DSA8300 Product Documentation CD

DSA8300 Application Help (part of application software)

DSA8300 Programmer Manual (part of application software)

DSA8300 Product Software Install Kit

Power cord Type dependent on selection

VGA female to DVI male adapter

Install your ins

071-2897-XX

Not orderable

200-4519-00

119-6107-00

006-3415-04

063-4356-XX

Not orderable

020-3088-XX

during order placement

013-0347-00

trument

DSA8300 Q uick Start User Manual 3

Install your ins

trument

Operating considerations

The following information lists the speciﬁcations related to the operation of the mainframe. Refer to the DSA8300 Digital Serial A nalyzer Speciﬁcations and Performance Veriﬁcation Manual for a complete list of speci ﬁcations.

Mechanical

Clearance requirements

Top, Front, and Rear: 0 mm (0 in)

Sides: 51 mm (2 in)

Bottom: 19 mm (0.75 in)

Weight

Orientation

Rack mounting

Dimensions

19.5 kg (43.0 lb.). This does not include any accessories or modules.

Place the instrument on a cart or bench. The instrument should rest on its bottom or rear feet. The front feet fold down to angle the instrument.

An optional rack mounting kit (Option 1R) is available.

ronmental

Envi

erature

Temp

ative humidity

Rel

Altitude

4 DSA8300 Quick Start User Manual

10 °C to +40 °C

20% to 80%, with a maximum wet bulb temperature of 29 °C at or below +40 °C

3,000 m (9,843 ft.)

Power supply

Install your ins

trument

Source voltag

Power Consump

e and Frequency

tion

100 - 240 V

600 watts maximum

Typically, 24

Fuses

3AG, 8 A, 250 V 159-0046-XX

6.3 A, 250 V,

Input connectors

Trigger Direct Input range

Trigger Prescaled Input absolute maximum input (typical)

External 10 MHz Reference Input 500 mV

±1.5 V (DC + peak AC) maximum input voltage

±1.1 V

10%, 50 - 60 Hz or 115 V

RMS

±10%, 400 Hz

RMS

0 w atts (fully loaded); 160 watts (mainframe with no modules)

, 15 second, ceramic fuse, Tektronix part number

fast blow (European), Tektronix part number 159-0381-XX

p-p

to5V

AC coupled into 1 kΩ, ±5 V maximum

p-p

DSA8300 Q uick Start User Manual 5

Install your ins

trument

Powering the instrument on and off

1. Insert AC power cord.

2. Toggle the mains switch to on.

3. Use the front panel power button to

switch the instrument on and off.

CAUTION. To prevent damaging the modules, do not install or remove any modules while the instrument is powered on.

Adding a second monitor

You can add a second monitor to provide two screens for viewing instrument applications or readouts.

1. Power off the instrument.

6 DSA8300 Quick Start User Manual

2. Connect a video cable (not supplied)

from the D VI-I out video port on the back of the instrum external monitor.

NOTE. Use a DVI-I to SVGA adapter (not

supplied) to

3. Power on the instrument.

4. Power on the external monitor. The

instrument detects the external monitor and displays the contents of the instrument screen.

ent to the D VI-I port on the

connect to SVGA monitors.

Install your ins

trument

5. Move the cursor to a blank area of the

screen, right-click the mouse to open the context menu, and select Graphics Properties.

DSA8300 Q uick Start User Manual 7

Install your ins

6. Select the display mode from the

7. If using an extended desktop, click the

trument

Operating Mode list.

external monitor 2 box in the Position pane and drag the monitor to the position that relates to the physical position of monitor 2 in relation to monitor 1.

8. Click the Display Settings tab, click the lDisplaytab, and use the ﬁelds to

Digita

set the monitor 2 screen characteristics.

9. Click Apply. The instrument makes the

selected changes and then prompts you

p the changes (if OK) or to Cancel

to kee the settings and return to the prev ious settings. If the new settings are correct,

k OK. You have about 15 seconds

clic before the instrument automatically returns to the previous display settings.

10. Click OK to close the Intel Graphics

ia Accelerator Driver window.

Med

8 DSA8300 Quick Start User Manual

Installing m odules

This section describes how to install and remove modules, as well as how to move modules while the instrument is powered on.

Typical module installations

Installing modu

les

The followin small compartment channels.

NOTE. A large compartment module that only derives power from the compartment does not use any small compartment

input chann

Eight channels: No large and four small modules

Six channels: Two large modules and two small mod

Seven c in CH3 compartment, and three small modules

Seven channels: One large module, installed in CH1 compartment, and three small modul

g are some typical module installations illustrating the interaction between large compartment channels and

els.

ules

hannels: One large module, installed

DSA8300 Q uick Start User Manual 9

Installing modu

les

Install a module

1. Connect an antistatic wrist strap to the instrument front-panel ground connection. Place the strap on your wrist.

2. For optical modules, turn the module lock screws counterclockwise to rotate the retaining tabs to a vertical position

before inserting the module.

3. Use the power cycle that is appropriate for your instrument:

DSA8300 instruments with TekScope application version 6.1.X and greater: Click Tools > View/Chang e Module Conﬁg and follow the on-screen instructions. (See page 11, Powered-on module conﬁguration.)

Legacy instruments and DSA8300 with TekScope application version 6.0.X: Power off the instrument using the front-panel On/Standby button.

4. Push the module into a compartment, using ﬁrm pressure. When the module is seated, turn the lock screw(s) clockwise

to tighten the module in the slot.

5. Power on the instrument (legacy instruments or DSA8300 with 6.0.X software) or complete the View/Change Module

Conﬁg process (software version 6.1.X and later). Let the instrument warm up for 20 minutes.

NOTE. The warm-up cycle is not required if you installed the module using the View/Change Module Conﬁg function

(software version 6.1.X and later).

6. In the TekScope application, click Utilities > Compensate and run a compensation on the newly-installed module. You

must also run a compensation if a module is moved from one slot to another, or an extender is installed, changed, or removed from a module.

10 DSA8300 Quick Start User Manual

Removeamodule

1. Connect an antistatic wrist strap to the instrument front-panel ground connection. Place the strap on your wrist.

2. Use the power cycle that is appropriate for your instrument:

DSA8300 instruments with TekScope application version 6.1.X and greater: Click Tools > View/Change Module Conﬁg and follow the on-screen instructions. (See page 11, Powered-on module c onﬁguration .)

Legacy instruments and DSA8300 with TekScope application version 6.0.X: Power off the instrument using the front-panel On/Standby switch.

3. Turn lock screw(s) counterclockwise until loose or they stop turning.

4. Push the appropriate ejector lever (as indicated by the up or down arrow near each lever) to the right to disconnect

the module.

Installing modu

les

5. Pull the module out of the slot.

Powered-on module conﬁguration

The View/Change Module Conﬁg function lets you remove, install, or move modules without powering down the mainframe.

CAUTION. Installing or changing modules when powered on requires DSA8300 TekScope software version 6.1.X or greater.

kScope software versions earlier than 6 .1.X , always power off the mainframe to remove or install modules. Failure to

For Te do so may result in damage to the module or mainframe. Download the latest D SA8300 software from www.tek.com/software.

1. Select Utilities > View/Change Module Conﬁg to open the module conﬁguration

og box.

dial

DSA8300 Q uick Start User Manual 11

Installing modu

2. Click on all module slots that you want to

3. Click Start.

4. The instrument notiﬁes you when you

5. Click Finish. The instrument notiﬁes you

les

change. This includes slots from which to remove a mod to install a module.

can remove or install a module. Remove or install modules only from the indicated slots. Wear an antistatic strap when handling modules.

when the s use.

ule and slots in which

elected modules are ready to

6. Close the dialog box.

7. Select Utilities > Compensation and

run a compensation on each channel of

y installed m odules. All newly

all newl installed modules require compensation, even if they were moved from one slot

her.

to anot

12 DSA8300 Quick Start User Manual

Getting acquain

tedwithyourinstrument

Getting acqua

Front panel

The front panel of your instrument gives you access to the module c ompartments and the c ontrol panel.

inted with your instrument

1. Antistatic connection terminal (1 MΩ).

2. On/Off switch.

3. Clock Input/Prescale Trigger input.

4. Trigger direct input.

5. Trigger probe power.

6. External 10 MHz reference input.

7. DC calibration output.

8. TDR Clock Out signal.

9. USB port(s).

10. Control panel.

11. DVD-ROM/CD-RW drive.

DSA8300 Q uick Start User Manual 13

Getting acquain

ted with your instrument

Control panel

1. Access print dialog box for printing the display.

2. Optimize instrument settings for the selected channel to automatically display a waveform.

3. Quickly return the instrument to default control settings.

4. Display measurement cursors and assigns the knob and SELECT buttons to control them.

5. Menu buttons quickly access the setup dialog box for more detailed setup.

6. Clear all data and measurement results.

7. Adjust m ost control ﬁelds in setup dialogs. Push the SELECT button to select the active cursor (when cursors are

enabled). Push the FINE button to toggle between normal and ﬁne adjustment.

8. Start and stop acquisition.

9. Display the Setup dialog box for c omprehensive setup of the instrument.

10. Toggle the touch screen on and off. Use the touch screen to control UI when you have not installed a mouse.

11. Select a waveform type (Channel, Reference, or Math) to display or adjust on screen (selected button lights).

12. Push a channel button to select and display a waveform for that channel. A lit button indicates selected and displayed

waveforms for that channel. An unlit button indicates that the channel is not selected.

14 DSA8300 Quick Start User Manual

Getting acquain

13. S e lect among displayed timebase views or display and select a magniﬁed timebase view. Push the selected view to turn it off (exc

ept main, which is always on).

tedwithyourinstrument

14. Vertically sc

15. Horizontally

16. Set trigger le

Rear panel

The rear panel of your instrument allows you access to input and output connectors and the AC input.

ale, position, and offset selected waveform.

scale, position, and set record length of selected waveform.

vel (applies only to Trigger Direct Input) and use lights to monitor trigger state.

1. Removable hard drive.

2. GPIB port. The instrument is factory set to be a talk/listen device, allowing you to control the instrument via the GPIB

port. You can change the instrument to be a GPIB controller, allowing you to control other devices via the GPIB port, or set the instrument to be off bus. Refer to the Programmer Manual installed on the instrument.

3. Computer I/O panel. (See page 16, Computer I/O panel.)

4. AC input.

5. Fuses.

6. Mains power switch.

DSA8300 Q uick Start User Manual 15

Getting acquain

ted with your instrument

Computer I/O panel

1. Audio line

4. DVI-I video out for dual-monitor display 5. COM1 6. PS2 (keyboard)

7. PS2 (mouse) 8. COM2

out

2. Mic input

3. USB ports

9. LAN

16 DSA8300 Quick Start User Manual

The user interface

Getting acquain

tedwithyourinstrument

1. Measure measure the selected waveform.

2. Tool Bar. Access to key features including printing, setup dialogs, m ath w aveform setup, waveform database, autoset, clear data, acquisition mode, triggering, and applications.

3. Menu Bar. Access to data I/O, printing, application help system, and setup functions.

4. Status Bar. Waveform count and trigger/acquisition status.

5. System Time/Date and compensation status.

6. Readout Docking. Select to undock the readout area from the application.

7. Readout area. Displays waveform and measurement details. Use the arrow buttons at each end to scroll the contents.

8. Readout. Right click on a readout to display a context menu for additional settings for that readout category.

9. Readout Enable. Toggles the readout type (cursor, histogram, mask, measurement, and waveform) on or off.

10. Controls Bar. Click to select a waveform (channel, math, or reference), as well as quick access to scale, offset, and

posi

11. Dis

ments Bar. Access to automated measurements by signal type and category; click measurement buttons to

tion controls for adjustment.

play. Contains live, reference, and math waveforms, and histograms, cursors and test masks when enabled.

DSA8300 Q uick Start User Manual 17

Getting acquain

ted with your instrument

Display - single waveform view

1. Drag the Horizontal Reference to move the point around which the horizontal scaling expands and contracts the

waveforms.

2. Drag cursors to measure waveforms on screen.

3. Drag the waveform icon vertically to position waveform.

4. Right-click on a waveform or its icon to open the context menu with setup controls and properties.

5. Drag ground reference icon to add offset to a waveform.

6. Drag across the waveform area to horizontally zoom the boxed waveform segment to full screen width.

18 DSA8300 Quick Start User Manual

Display - magniﬁed waveform views

Getting acquain

tedwithyourinstrument

1. MAIN View

2. Mag1 View

3. Mag2 Vie

4. Drag the

5. Drag the

6. Drag th

e border between graticules to vertically size Main, Mag1, and Mag2 Views.

markers to enclose the portion of waveform to appear in Mag1 View.

markers to enclose the portion of waveform to appear in Mag2 View.

DSA8300 Q uick Start User Manual 19

Getting acquain

ted with your instrument

Accessing application help

In-depth information about all the features of your instrument is available in the application help.

Position the mouse cursor on a control, such as a menu name, a menu item, toolbar button, or toolbar readout. The help system displays a short deﬁnition or description (tooltips) of the control.

For in-depth, contextual overviews, most dialog boxes have a Help button. Click the button to open the help system for information on that dialog box.

Select Help > Help Contents and Index to open the overall help system.

20 DSA8300 Quick Start User Manual

Inspect your instrument

Use the following procedure to verify the functionality of your instrument. For a complete performance veriﬁcation, see the DSA8300 Digital Serial Analyzer Performance Veriﬁcation and Speciﬁcations Manual, which can be downloaded from the Tektronix Web site.

Verify internal diagnostics pass

1. Install all modules to be diagnosed.

2. Power on the instrument and wait

20 minutes for the warm-up period.

Inspect your ins

trument

3. Select U

tilities > Diagnostics.

DSA8300 Q uick Start User Manual 21

Inspect your ins

4. Select the Subsystem Level tab.

5. Select all the entries by clicking the ﬁrst

6. Verify that the Loop and Halt on Failure

7. Click Ru n.

8. Verify that all tests display Pass in the

trument

entry Control Proc and dragging down to select the r

est. All entries should be

highlighted.

boxes are unchecked.

Status colu

mn when the diagnostics complete. If diagnostic failures occur, contact your local Tektronix service center.

22 DSA8300 Quick Start User Manual

Optimizing meas

urement accuracy

Optimizing me

The instrument provides several utilities that optimize measurement accuracy:

Signal path compensation (SPC) conﬁgures signal paths to improve measurement accuracy at the current ambient

temperature.

Dark-level compensation maximizes the accuracy of extinction ratio and other optical measurements

User Wavelength Gain c ompensation optimizes an optical channel for a custom input signal

Differential Channel Alignment application aligns input channels and TDR steps on supported electrical modules

asurement accuracy

Signal path compensation

Signal path compensation (SPC) conﬁgures the instrument and module signal paths to make accurate measurements at the curren

You should

t ambient temperature.

run a SPC:

After add

After mov

ing a module to the instrument

ing or removing an extender cable from a module.

ing a m odule to another slot.

The ambi

When mak compensation once a week under these c onditions. Failure to do so may result in the instrument not meeting warranted performance levels at these volts/div settings.

NOTE. Y

1. Install all modules to be compensated. (See p

2. Insta

Failure to ins tal l the 50 Ω terminations on electrical inputs can cause erroneous comp

3. If yo change module conﬁguration, power on the instrument and wait 20 minutes for the w

ent temperature has changed more than 5 °C since the last signal path compensation.

ing measurements at vertical scale settings less than or equal to 5 mV/div. Perform the signal path

ou must save the compensation results or they will be lost when the instrument is powered down.

age 9, Installing modules.)

ll all terminations and dust covers.

ensation failures or results.

u powered off the instrument to

arm-up period.

DSA8300 Q uick Start User Manual 23

Optimizing meas

4. Select Utilities > Compensation

5. Verify that the main instrument

(mainframe) and all installed modules are listed. the last compensation is also listed.

6. Check that the Status for all items to compensate changes from Warm Up to Pass, Fail

urement accuracy

The temperature change from

,orComp Req'd.

7. Select Co

8. Select th

compensation:

Mainframe (default selection) to compensate just the main instrument

All modules to compensate all installed module c

Module

channels of the selected module

9. Click Execute.

Follow the on-screen instructions regar and terminations; be sure to follow electrostatic handling precautions (see sampling module) when following these instructions.

mpensate and Save (default).

eitemonwhichtorun

hannels

to compensate speciﬁed

ding signal and trigger inputs

the user information for your

24 DSA8300 Quick Start User Manual

10. Verify that the compensation routines

pass.

If the status i again. If Fail status continues, the module or main instrument may need service.

s Fail, run the compensation

Optimizing meas

urement accuracy

11. Use the Compe

to display or h ide the compensation indicator on the main display. Green means that a successfully compensated. Yellow means that the instrument has not competed it Red means that one or more modules require compensation.

nsation Indicator Button

ll modules have been

s 20 minute warm-up period.

DSA8300 Q uick Start User Manual 25

Optimizing meas

urement accuracy

Dark-level and user wavelength gain compensations

NOTE. You should run the Signal Path Compensation procedure before running dark-level or user wavelength gain

compensation

. (See page 23, Signal path compensation.)

These procedu

Dark-level compensation maximizes the accuracy of the extinction ratio and other optical automatic measurements. Dark-level compensation performs a subset of the module compensation process. It is designed to be fast so it can be performed f selected bandwidth or ﬁlter path and the internal optical power meter.

User Wavelength Gain compensation optimizes an optical channel for your custom input signal.

1. Install one or two optical sampling modules in the instrument. Set the acquisiti

2. Select the channel to compensate.

res apply only to optical modules.

requently, just before measurements are taken. Dark-level compensation is not saved and is only valid for the

on system to run continuously.

3. Select Setup > Vertical.

26 DSA8300 Quick Start User Manual

Optimizing meas

urement accuracy

To run the Dark-

4. In Vert Setup d

Level button under Compensation.

Follow the instructions on screen.

NOTE. You need

dialog to the Optical dialog to access the Dark Level Calibration button.

Repeat steps 2 and 4 for any additional optical channels you want to compensate

To run the U compensation (for signals at wavelengths

other than the factory calibrated values; typically

5. Use an independently-calibrated average

850, 1310 and/or 1550 nm):

optical p power of an optical signal source.

Then connect the signal to the optical module u

Level compensation:

ialog box, click the Dark

to switch from the Basic

ser Wavelength Gain

ower meter to measure the

sing the same ﬁber cable.

6. Click the User Wavelength Gain button

in the Vert Setup dialog box.

7. Enter the w avelength and measured

power of the signal applied to the channel In the User Wavelength Gain Compensation dialog box.

8. Click OK to execute the compensation.

DSA8300 Q uick Start User Manual 27

Optimizing meas

urement accuracy

Align acquisition (and TDR steps) for two-channel modules

Small signal misalignments on dual-channel electrical sampling modules can signiﬁcantly impact differential and common-mode signal measurements. The D ifferential Channel Alignment application provides a guided procedure to align both the acquisition and (where applicable) the TDR steps of supported electrical sampling modules. This application is available on DSA8300 instruments with TekScope ﬁrm ware ver sion 6.2.x and later.

You should run the Differential Channel Alignment application whenever you change the instrument module conﬁguration, such as when installing a new supported module, installing or moving supported modules from one slot to another, or installing a module on an extender cable.

Click Applications > DiffChAlign to open the application. Open the help in the Differential Channel Alignment application for more information.

28 DSA8300 Quick Start User Manual

Acquisition

This section contains concepts of and procedures for using the acquisition system. Detailed information is available in the application help.

Setting up signal input

Acquisition

Use front-pa

CAUTION. Sampling modules are inherently vulnerable to static damage. Always observe static-safe procedures and

cautions as outlined in your sampling-module user manual.

1. Connect the instrument to the device or

signal under test u or connecting techniques. See the user manual for the installed sampling module for connection re

CAUTION. Discharge electrical cables to

ground before connecting them to a module.

2. Connect an appropriate t

the instrument. (See page 38, Triggers.)

nel buttons to set up your instrument to acquire the signal.

sing proper probing

quirements.

rigger signal to

DSA8300 Q uick Start User Manual 29

Acquisition

3. Push the CH button (turns amber) to assign the waveform buttons (1–8)to operate on cha select the proper waveform button.

A waveform button lights when its channel is on the button is green; when on and selected, the button is amber.

Push the MATH waveform buttons to math waveforms. If the selected math waveform is not deﬁned, the Math dialog box.

Push the REF buttontoassign the w avefo waveforms. If no reference waveforms are loaded into the channels, the Recall Waveform d

nnel waveforms. Then

; w hen on but not selected,

button to assign the

instrument opens the Deﬁne

rm buttons to reference

ialog box appears.

4. Use the Ve and Scale knobs to adjust the vertical parameters o f the selected waveform.

rtical Position, Offset,

30 DSA8300 Quick Start User Manual

Acquisition

5. Push the View Ma

that the main time base view is selected.

Use the horizontal Position, Resolution, and Scale knob the waveform on the screen and to set the sample resolution.

in buttontomakesure

s to scale and position

Quick tips

You can click a waveform trace or its reference indicator with the mouse pointer (or touch screen) to select it.

Push AUTOSET to quickly set up instrument parameters and display a waveform based on the input signal.

Push Set to 50% in the Trigger controls, if required, to stabilize the display when using the Trigger Direct Input connector.

Using fa

1. To quickly return to the factory default

2. Click Yes to restore the settings.

ctory default setup

settings, push DEFAULT SETUP.

DSA8300 Q uick Start User Manual 31

Acquisition

Using Autoset

Use Autoset to automatically set the instrument vertical, horizontal, and trigger parameters and display a waveform based on the characteristics of the input signal.

NOTE. Make sure that the input channel(s) for the signal are on and selected before doing an autoset.

1. Push the AUTOSET button to execute an Autoset.

If you use Autoset when one or more channels are displayed, the instrument uses the selected channel for horizontal scaling. Vertically, all channels in use are individually scaled.

Quick tips

If the ins select the signal type. Then push the Autoset button again.

Select Utilities > Deﬁne Autoset to change the Autoset properties.

trument does not autoset to your signal, select Setup > Horizontal,clicktheComm Standard button, and

32 DSA8300 Quick Start User Manual

Accessing the Setup dialog boxes

The Setup dialog boxes are the key controls for setting instrument parameters such as Mode/Trigger, horizontal, vertical, acquisition, cursors, hist ogram, display, and mask.

1. Access the Setup dialog boxes by using

the front panel buttons, the Setup menu item, or the Setup button.

Acquisition

2. Click

DSA8300 Q uick Start User Manual 33

on the tabs to select among the

setup dialog boxes.

Acquisition

Changing the acquisition mode

Use the procedure that follows to set the data-acquisition mode and specify acquisition start and stop methods.

1. Push the Acquisition MENU button to display the Acq Setup dialog box.

2. Select the acquisition mode.

3. For Average mode, enter the number of

samples to average.

4. Set the Stop After mode and action by selecting Run/Stop Button Only or

Condition.

5. If you selected Condition, choose a

condition on which to stop from the drop-down list. If the condition requires a count, enter a count.

6. Enter a ﬁlename if you selected Print to File or Save all Waveforms.

7. Select Ring Bell if you want the

instrument to produce an audio tone when the acquisition stops.

NOTE. You must connect an external

speaker to the instrument to hear a tone on a stop condition.

8. Push RUN/STOP to start the acquisition.

9. Push RUN/STOP again to stop the

acquisition.

Quick tips

Run/Stop is available on both the front panel and the touch screen.

If Stop After is set to Condition, pressing RUN/STOP causes only one acquisition to run if the original condition has been met. You need to push CLEAR DATA so that the c ondition must be met again.

34 DSA8300 Quick Start User Manual

Waveform databases

Acquisition

NOTE. Certain

system to use a waveform database i f one is available.

The four available waveform databases can be used for measurements, histogram calculations, mask testing, and generating a density-st mask testing.

1. Select Setu

main menu.

2. From the pu

Database, select one of the four available databases.

3. Click the Source button to select the

waveform

4. Click On t

the selected source.

5. Click Display to turn on the display of

the waveform database.

6. Select the Persistence mode for the

select

measurements require the use of a waveform database. The instrument automatically sets the measurement

yle, graded display. Waveform databases may be automatically allocated for measurements, histograms, and

p > Wfm Database from the

lldown menu under

source.

o start accumulating data from

ed waveform.

7. If you s

NOTE. The following Display Options affect

all w aveform databases that you display.

8. Click a grading display option.

9. Click Invert to emphasize the least

10. Select one of the four grading methods.

11. If you selected one of the two

elected Variable persistence, you can specify the number of waveforms that are included in the waveform

ase.

datab

urring pixels by reversing the

occ intensity/color assignments to each grading partition.

phasized grading methods, slide the

Em Emphasize Counts percentage control to specify the range of counts you want

phasized.

DSA8300 Q uick Start User Manual 35

Acquisition

Setting the display style

1. Click the Setu

tab.

2. Select a waveform display style.

Normal selects a display with no

acquisit are displayed with the new data from ongoing acquisitions replacing data acquire

Show Vectors turns on display lines between waveform dots; deselect to display only dots.

p button and click the Disp

ion data persistence. Waveforms

d from previous acquisitions.

Sin(x)/x interpolation computes

record points using a curve ﬁt between the acquired samples.

Linear interpolation computes

record points between actual acquired samples by using a straight line ﬁt.

3. Variable Persistence makes data persist for a speciﬁed time. New waveform displays accumulate data as new waveform records acquire, but with continuous replacement of the oldest data.

Set a time at which the oldest data is removed.

36 DSA8300 Quick Start User Manual

Inﬁnite Persistence makes data persist until you change some control or explicitly

clear the data. Waveform displays accumulate data as the instrument acquires new data, resulting in a buildup o

f data in all time slots.

Acquisition

4. Use the Grat

icule settings to select the graticule style and the g raticule color and screen background.

DSA8300 Q uick Start User Manual 37

Triggers

This section contains concepts and procedures for using the trigger system. Detailed information is available in the application help.

Triggering concepts

Trigger event

A trigger event occurs when the trigger source (the signal that the trigger circuit monitors) passes through a speciﬁed voltage level in a speciﬁed direction (the trigger slope). The trigger event sets the time-zero point in the waveform record and all sampled waveforms on all inputs are measured with respect to that event.

When a trigger event occurs, the instrument acquires one sample of all active (selected) signals. When the next trigger event occurs, the instrument acquires the next s ample. This process continues until the entire record is ﬁlled with acquired samples. Without a trigger, the instrument does not acquire any samples. Sampling oscilloscope behavior differs from that of real-time acquisition systems, which can acquire a complete waveform record from a single trigger event.

Trigger sources

ger source sets the source that the trigger system monitors for a trigger event. The source can be:

The trig

Aclocks external to the instrument:

NOTE. Signals greater than 1 V

The instrument TDR clock, with selectable TDR Step repetition rates. The TDR CLOCK OUT connector on the inst

Alo used to acquire serial data signals at rates up to 3 Gb/s, its primary use is for low repetition rate (<150 MHz) signals or for signals w here you need additional conditioning of the input trigger signal (such as trigger level, slope, and so on). This ﬂex

An i this trigger source is useful primarily for locating a signal or clock and applying the appropriate offset to the data or trigger for proper synchronous waveform acquisition.)

ignal used for acquiring optical or electrical serial data streams. The source of the clock can be internal or

External Clock Input/Prescale Trigger. Connect the trigger signal to the front panel connector. Triggering is guaranteed for clocks from 800 MHz to 15 GHz (200 mV (150 mV

Internal Clock-recovery trigger. This trigger source can be an optical sampling module that is equipped with a clock depend on the sampling module. For example, the 80C08C Optical Sampling Module with option CR4 provides internal clock-recovered triggers for any data rate (standard or custom) from 8.5 Gb/s to 12.5 Gb/s.

rument front panel supplies a replica of the TDR clock,

w-repetition rate signal (DC to 3 GHz) connected to the External Trigger Direct input. While this trigger source can be

ibility comes at the cost of increased instrumentation jitter.

nternal clock for Free Run acquisition of signals. (Since the acquired signals are not synchronous with the trigger,

-1VPP).

may cause the unit to stop triggering.

-recovery option, or a dedicated electrical c lock recovery module. Available clock recovery triggering rates

-1VPP), and will typically work from 150 MHz to 20 GHz

38 DSA8300 Quick Start User Manual

Trigger modes

When a Clock source is selected (whether Internal Clock recovery or external Clock Input/Prescale Trigger input) as the trigger source, you must select the Trigger M ode. Available trigger modes are Eye, Pattern, and O ther:

Select Eye mode if the signal you are acquiring is synchronous with the selected clock source and you w ant to display

the acquired data as an "eye diagram" overlaying all of the acquired data bits with minimal clock to data jitter.

Select Pattern mode if the signal you are acquiring is synchronous with the selected clock source and you want to

display the individual bits as a "bit stream", with minimal clock to data jitter.

NOTE. Pattern mode is only available if Option ADVTRIG is installed on the instrument.

Select Other mode if the signal you are acquiring is synchronous with the s elected clock source and you want to display

the acquired data showing the effects of any clock modulation (such as Spread Spectrum Clocking).

Table 1: Application-based trigger modes

Triggers

Application

Optical or Electrical Serial Data (NRZ) Mask and Parametric Testi n g ( m i nimum jitter)

Optical or Electrical Serial Data Pattern Analysis (including JNB analysis)

Optical or Electrical Serial Data (NRZ) Mask and Parametric Testi n g (w/ clock modulation effects – SSC)

Clock Signal Analysis

Waveform display Trigger Source/Mode

Trigger Source: Clock Input/Prescale Trigger input or Internal Clock Recovery

Clock Trigger Mode: Eye

Trigger Source: Clock Input/Prescale Trigger input or Internal Clock Recovery

Clock Trigger Mode: Pattern (this mode of operation requires the Advanced Trigger Option ADVTRIG). Maximum supported pattern length= 2

Trigger Source: Clock Input/Prescale Trigger input or Internal Clock Recovery

Clock Trigger Mode: Other

Trigger Source: Clock Input/Prescale Trigger input or Internal Clock Recovery

Clock Trigger Mode: Eye

DSA8300 Q uick Start User Manual 39

Triggers

Table 1: Application-based trigger modes (cont.)

Application

TDR/TDT and S-Parameter Analysis

Low Repetition Rate Signals

Waveform d isplay Trigger Source/Mode

Trigger Source: TDR

Trigger Source: External Direct Trigger input

40 DSA8300 Quick Start User Manual

Setting trigger controls

Nearly all trigger parameters a re set in the Mode/Trig Setup dialog box.

1. Push the Trigger MENU buttontodisplay the Mode/Trig Setup dialog box.

2. Select a trigger source.

3. If the trigger source is Clock, select the Scope Mode.

4. Use the Clock Recovery Outputs ﬁelds

to select a measurement standard and deﬁne clock recovery parameters on applicable modules.

Triggers

5. Click Pattern Sync/FrameScan Setup to set pattern sync, autosync and FrameScan parameters. (See page 42,

Setting Pattern Sync and FrameScan controls.)

6. Click Advanced Trigger Setup to set trigger level, slope, holdoff, and other trigger parameters.

Quick tips

cting Clock > Prescale/Clock as the trigger source requires that an appropriate trigger signal be connected to the

Sele

CLOCK INPUT/PRESCALE TRIGGER input connector.

If you select the Clock trigger source, you also need to select the Scope Mode (Eye, Pattern, or Other).

Pattern (Scope Mode) triggering is only available if the Advanced Trigger option ADVTRIG is installed on the instrument.

If you select Pattern (Scope Mode), use the Pattern/Sync/FrameScan Setup dialog to specify the pattern characteristics.

Selecting a Clock Recovery trigger source requires that a module with clock recovery is available. Select the clock

recovery standard from the pulldown lists or user-speciﬁed range controls.

Selecting TDR as the trigger source uses the clock frequency setting in the Rate control.

DSA8300 Q uick Start User Manual 41

Triggers

Selecting Direct as the trigger source requires an appropriate trigger signal be connected to the DIRECT INPUT connector.

The Level control applies only when the trigger source is set to Direct.

Setting Pattern Sync and FrameScan controls

NOTE. The pattern sync controls are only available if the instrument has the ADVTRIG option installed and the instrument is

set up for Pattern Trigger mode.

1. Select Setup > Mode/Trigger.

2. Click Pattern Sync/FrameScan Setup.

3. Select the parameters for pattern

synchronization:

Select the Data Rate (bit rate) (default

is 2.48832 Gb/s).

Select the Pattern Length (default is

127).

Select a Data:Clock Ratio

(data-to-clock ratio) (default is 1:1).

Set the Main timebase delay position.

This is the same control as found in the Setup > Horizontal tab.

4. Use the AutoSync feature to automatically detect the data rate, pattern length and/or data-to-clock ratio of the applied data and clock signals (data to a sampling module channel and the clock to the Clock/Prescale Trigger input, or from an internal clock recovery source).

5. Enable FrameScan to automatically scan through a pattern (or part of a pattern).

This FrameScan control is the same as the FrameScan control in the Horizontal Setup dialog box (changing either one affects the other).

42 DSA8300 Quick Start User Manual

Quick tips

All pattern sync controls are disabled (grayed out) if the Advanced Trigger option (ADVTRIG) is not enabled in the

instrument, or the Trigger Source is not set to Clock, or the Scope Mode is not set to Pattern.

The Data Rate in the Pattern Sync dialog box is tied to the Bit Rate control in the Horizontal setup d ialog box. C hanging

either one affects the other.

If the entered Data Rate does not match the rate of the selected communication standard in the Horizontal Setup,

then the communication standard is changed to User.

For highest reliability and speed, manually enter as many control values as possible. Uncheck the control value in the

AutoSync Options area to enable m anual entry.

Checking trigger status

Triggers

You c an che the waveform count.

1. Check the READY and TRIG'D

front-pa trigger status, or look at the trigger status in the application.

ck the status of the trigger from the front panel and in the application status bar. The status bar also displays

nel controls to determine the

DSA8300 Q uick Start User Manual 43

Waveform measur

ements

Waveform meas

Your instrument features automatic measurements (with statistics), cursors, histograms, and waveform math processing to assist you in analyzing waveforms. This section contains concepts and procedures for analyzing waveforms. See the application help for more information.

urements

Taking automatic measurements

Automated m and measurement categories (amplitude, time, and area).

1. Select the waveform to measure. You can measur math waveform.

2. Select the waveform type and category from the b bar.

easurements are divided into waveform types (Pulse, NRZ (Non-Return-to-Zero), and RZ (Return-to-Zero))

e a channel, reference, or

uttons on the Measurement

3. Click on a measurement button in the Measurement tool bar. The instrument displays the most frequently used measurements for the selected waveform type and category.

You can also access all of the measurement types from the MEAS setup dialog box.

44 DSA8300 Quick Start User Manual

Waveform measur

ements

4. Read the result

readout.

To see statistics:

5. Right click on any measurement readout

to display its context menu.

6. Select Show Statistics to display

measurement statistics in the measurement readout.

To show mea

7. Right clic

to display its context menu.

8. Select Show Annotations to display

annotations that indicate which portion of the wavef as reference levels for the measurement.

s in the measurements

surement annotations:

k on any measurement readout

orm is being measured as well

9. Note the portion of the waveform being

measured.

10. Note the reference levels for the

measurement.

DSA8300 Q uick Start User Manual 45

Waveform measur

To measure a waveform database:

11. Select Setup > Meas from the application menu bar.

In the Meas Set to select a measurement slot (one of

Meas 1 through Meas 8).

12. In the Source tab, check the Use Wfm Database opt

ements

up dialog box, make sure

ion.

ize a measurement:

To l ocal

13. Select

14. Select

15. Click t

16. Use the G1 (Gate1) and G2 spin c ontrols

Meas.

the Region tab.

he On box to turn gating on and to

display the gates on screen.

to adjust the gates on screen such that

ea to measure is between the

the ar gates.

46 DSA8300 Quick Start User Manual

17. Click the Annotations box to display

which portion of the waveform is being measured and t that measurement.

he reference levels for

Waveform measur

ements

Quick tips

If, at the time you ﬁrst create a measurement, the measurement source you select is displayed as a waveform database,

base will automatically be measured. Deselect the User Wfm Database option if y ou want to measure the

the data vector waveform instead of the database.

Gate values are entered as a percentage of the waveform, displayed from left to right. If no keyboard is installed, access

the virtual keyboard and use the touch screen to enter values.

You can select and drag the gates to new locations by using a mouse or the touch screen.

DSA8300 Q uick Start User Manual 47

Waveform measur

ements

Turning off automatic measurements

You can assign and display up to eight automatic measurements. If you need an additional automatic measurement, and all measurement slots are used, reassign a current measurement slot to the new measurement.

1. Note the current measurement assignments. In this example, measurement slots 1 and 3 have measurements assigned and displayed.

2. Select Meas (measurement) from the Setup dialog box.

3. Use the pulldown list to select Meas 3 (measurement slot 3).

4. Note that measurement slot 3 has a measurement assigned and is displayed (On).

5. Click Select Meas > None to disable measurements on slot 3.

6. Note that measurement slot 3 i s now labeled Not Deﬁned and no measurement icon is displayed.

7. Note that measurement slot 1 has a measurement assigned. It is set to not display, but the measurement slot is still used.

48 DSA8300 Quick Start User Manual

Quick tip

To easily redeﬁne a measurement slot, select Select Meas and choose a new measurement.

Cursor measurements

Use cursors to measure amplitude and time quickly and with more accuracy than when visually using the graticule to take measure waveform segment or feature than automatic measurements.

1. Push the CURSORS button:

ments. Because you position cursors wherever you want on the waveform, they are easier to localize to a

Once for Vertical Bars

Twice for Horizontal Bars

Three times for waveform cursors

Waveform measur

ements

2. Push the FINE button to toggle between

coarse and ﬁne cursor position control.

3. Push the SELECT button to toggle

selection between the two cursors. The active cursor is represented by a solid line.

4. Turn the General Purpose knob to

position each cursor on the waveform to measure the feature that interests you.

DSA8300 Q uick Start User Manual 49

Waveform measur

5. Vertical bars (V Bars) measure horizontal parameters (time, bits or distance).

6. Horizontal bars (H Bars) measure amplitude parameters (volts, watts, ohms, rho).

ements

7. Waveform cursors measure vertical and horizontal parameters simultaneously. Waveform cursors are attached to the waveform and track with the waveform points.

8. Read cursor measurement results in the readouts area of the display.

50 DSA8300 Quick Start User Manual

Waveform measur

9. Click this button to show or hide the

cursor readouts.

Quick tips

Cursors require that at least one waveform is selected on the screen.

Waveform cursors are not available if a waveform database is selected.

You can drag a cursor to place it relative to the waveform.

You can assign each cursor to a different waveform to measure differences between waveforms. Make these selections

in the Cur

sor setup dialog box.

ements

If you us waveform. Magnify each point of interest in a separate time base, and then place one cursor on each point. The Δ-time cursor readout will then reﬂect the position and resolution of the magniﬁed time bases.

e two magniﬁed time base views, you can take precision timing measurements between two distant points on a

DSA8300 Q uick Start User Manual 51

Waveform measur

ements

Math waveforms

You create math waveforms by creating a math expression using the Deﬁne Math dialog box. In that dialog box, you apply numerical constants, math operators, and functions to sources ( live or reference waveforms), measurement scalars (measurement readouts), or ﬁxed scalars. You can display and manipulate these derived math waveforms much like you can the channel and reference waveforms.

1. Push the Vertical MATH button (once or twice if needed) to display the Deﬁne Math dialog box.

2. Click the Math Waveform drop-down list in the dialog box and select one of the eight available math waveforms.

3. Use the dialog box to deﬁneamath expression. Some guidelines for creating your expression follow:

Sources (C1 - C8, R1 - R8, and

Meas 1 - Meas 8) should be set up before you use them (references and automated measurement scalars should be deﬁned).

Elements that appear grayed out

cannot be selected because they would result in an illegal entry.

4. Use the ﬁlter control in the dialog box to

ify the rise time of any ﬁlters in the

spec math waveform deﬁnition.

52 DSA8300 Quick Start User Manual

5. When you have deﬁned the expression,

click Apply.

6. Select the Math Waveform On box to

display the wa

veform.

Quick tip

Waveform measur

ements

If you select a waveform that is already deﬁned, its math expression appears in the dialog box. To use the waveform,

click the Clear button, which discards its previous math expression.

Display a communication signal

1. Connect signals to the sampling

module (Data signal to the module input, clock signal to the CLOCK INPUT/PRESCALER TRIGGER connector).

CAUTION. Always observe optical cable

and static-safe procedures and cautions as outlined in your sampling-module user manual when connecting cables to modules.

DSA8300 Q uick Start User Manual 53

Waveform measur

2. Push the DEFAULT SETUP front panel button and click YES to load the default instrument se

ements

tup.

3. Select the inp

4. Select Setup

ut signal source (1–8).

> Horizontal and enter the communications standard or set the bit rate of the signal.

5. Push the AUTOSET front panel button. The instrum

ent analyses and displays

the signal.

54 DSA8300 Quick Start User Manual

Mask testing

Use mask testing to test your waveforms for time or amplitude violations against a predeﬁned industry standard or a user-deﬁned mask. Mask testing counts waveform samples (called hits or violations) that occur inside of a speciﬁcarea(the mask). In addition, if there are mask violations, the instrument displays the ratio of mask hits to the total number of samples acquired in the unit interval for which the mask applies.

This instrument provides many predeﬁned standard masks (including Ethernet, SONET/SDH, and Fiber Channel (optical and electrical)).

You can use the application mask edit tools to create a user-deﬁned mask or import a custom mask from a ﬁle. See the application help ﬁle for more information.

To perform mask testing:

Waveform measur

ements

1. Select the

from the drop-down list under Source.

2. Select a standard mask in the Mask setup

dialog box. Selecting a communication standard, automatically:

3. If you w

(Selecting a mask in step 2 automatically enabled them.)

4. Check Use Wfm Database to use a

wavef source.

waveform to be mask tested

user-deﬁned, or custom mask

Displays the mask on screen and

autosets for the m ask if Automatic is checked i

Enables

Display

the mask readout. You do not have to display a mask to enable mask counti

n the dialog box.

mask testing.

s mask count statistics in

ng.

ant, disable mask counts.

orm database as the waveform

5. If applicable to your selected Comm

Standard, click the Vert tab and select a

nal conditioning ﬁlter. Then click the

sig Mask tab to return to the mask settings.

DSA8300 Q uick Start User Manual 55

Waveform measur

To autoset the waveform to the mask:

6. Click the Auto set Data button to perform

a manual autoset on the mask-source waveform.

ements

7. Click Advanc

8. Select the Autoset Method mode

(Automatic or Manual) and the HiLow Method (Mean or Mode) to determine the signal High and Low values, used to align the input signal to the mask:

NOTE. When using a standard mask,

the instrument automatically selects the appropriate HiLow Method:

Mean sets the Mask Autoset to use the mean value of the High level (topline) and Low level (baseline), taken within the ﬁxed eye aperture (center 20% of the eye), to align the input signal to the NRZ mask.

Mode sets the Mask Autoset to use the High level (topline) and Low level (baseline), taken across one unit interval of the eye diagram, to align the input signal to the NRZ mask.

To set a Stop Action:

ed Mask Setup.

9. Select Setup > Acquire in the main menu to open the Acq setup dialog box.

10. In the Acq Setup dialog box, select the Condition option under Stop After.

11. In the Condition pulldown list, select a mask-related criteria, such as Mask UI Samples and set a count, such as

1,000,000, in the count box.

These settings stop acquisition when the acquisition satisﬁes the criteria you set.

12. Push the RUN/STOP button to restart acquisition, if stopped.

56 DSA8300 Quick Start User Manual

To a utoﬁt the mask to acquired data:

For best mask testing results (such as best mask test to a waveform data set after acquiring an adequate number of waveforms.

margin), auto-ﬁtthemask

Waveform measur

ements

NOTE. Mask au

mask testing on data in a waveform database.

13. Push RUN/ST

(or use the automatic Stop After Condition; see steps 9 - 11).

14. Click the Au toﬁt Mask buttoninthe

Mask setu button is g rayed out, select Enable Mask

Counts at the top of the Mask tab.

To restart testing:

15. To restart after a Stop After condition

occurs, push the front-panel CLEAR DATA button, followed by the RUN/STOP

front-panel button.

16. Read the mask-hits, mask unit interval

samples, mask hit ratio, and (if enabled) margin percent readouts in the readout.

to-ﬁtting only works when

OP to stop data acquisition

p tab. If the Auto ﬁtMask

DSA8300 Q uick Start User Manual 57

Waveform measur

ements

To do mask testi simultaneously acquired channels:

Prerequisite

Mask testing m for all acquired signals

All signals must be acquired into waveform databases

At least one complete “eye” (two clear crossings) being tested

17. Set up the ﬁrst channel on which to perform a mask test (steps 1 – 4).

18. Select the Use Wfm Database box in the Mask S

19. Select a and position the waveforms such that at least one clear eye pattern is visible for each wav image shows two waveforms with clear eyes (two clear crossings per eye, as

ted by circles on the image).

indica

ng on multiple

ust use the same mask

must be visible for all signals

etup tab.

dditional signals to test. Scale

eform at the same time. The

20. Assign

21. Stop signal acquisition (press the

each waveform to a waveform database, and acquire an adequate number of waveforms.

RUN/STOP button or use the Automatic Stop After condition).

58 DSA8300 Quick Start User Manual

22. Select the signal on which to run a mask

test (Channel 1 in the example image).

23. Select Setup > Mask and click the

Autoﬁt Mask bu

ﬁrst s ignal to be tested against the mask. View the results in the M ask readout.

24. Repeat steps 22 and 23 to test each

acquired channel against this mask. The example shows the mask autoﬁtted ﬁrst to the channel 1 waveform and then to the channel 3 waveform.

tton to ﬁt the mask to the

Waveform measur

ements

Quick

DSA8300 Q uick Start User Manual 59

tips

Selecting a source that is currently displayed as a waveform database automatically enables mask testing on the

database. To mask test the waveform instead of its database, deselect the Use Wfm Database box.

You can choose to autoset the mask-source waveform to the mask each time you select a new mask standard by

checking Automatic under Autoset.

Pushing the RUN/STOP button after acquisition has stopped due to a Stop After condition being met causes the

instrument to acquire one (and only one) additional waveform.

The Clear Data button resets all mask counts. In addition, if the source for mask testing is a waveform database, clicking

this button clears the waveform database.

Waveform measur

Exploring mask margins

You can use Mask Margins to explore design margins of your communications signal. Available mask margin types are Manual, Hit Ratio and Total Hits:

Manual sets the margin percentage between -100% to +100% in 0.1% increments. The displayed mask and mask readouts (mask hits

Hit Ratio sets the maximum acceptable hit ratio, where hit ratio = ((Total Hits)/(Unit Interval Samples)).

Tot al Hi ts sets the maximum acceptable total mask hits.

ements

and computed hit ratio) are updated.

1. Select S etup > Mask inthemainm

2. Click the Mask Margins drop-do

and select the margin type. This example uses Hit Ratio.

3. Enter the hit ratio value in the Ratio ﬁeld.

4. Click Autoseek Margin.

The instrument autoﬁts the mask to the accumulated waveform data scales the mask until it is the maximum size that results in a hi t ratio that is less than or equal to the speciﬁ parameter.

ed hit ratio

enu.

wn list

and then

The Hit Ratio mask readout displays:

Mask violation counts for each mask

Mask margin (including uncertainty)

Unit interval sample count

Measured hit ratio

5. Repeat steps 2 through 4; select a different mask margin type to test and enter a value in the input ﬁeld (% change for Manual, maximum number of hits for Hits).

For Total Hi ts, the Autoseek Margins function autoﬁts the mask to the accumulated waveform data and then scales the mask until it is the maximum size that results in a hit count that is less than or equal to the speciﬁed hits parameter.

For Manual, the instrument disables the Autoseek Margin button, and scales the mask size by the entered Margin percent value.

60 DSA8300 Quick Start User Manual

FrameScan

Use FrameScan to test a speciﬁc bit (or range of bits) in a repeating frame of data. FrameScan acquisitions allow detailed display and analysis of individual, c omplete waveforms or of the bit sequences leading up to a failure. This ability to i dentify the speciﬁc patterns that caused the failure makes the FrameScan mode superior to traditional methods.

1. Select the Horizontal Setup tab.

2. Click Pattern Sync/FrameScan Setup.

Waveform measur

ements

3. Click Enabled in FrameScan.

4. Set the Scan Bits to the number of bits

or subframes to acquire.

DSA8300 Q uick Start User Manual 61

Waveform measur

To use TDR

To take TDR measurements, you must hav e a TDR-capable sampling module installed and your DUT must be attached to the TDR sampling module.

1. Select TDR from the Setup menu.

2. Click the channel button to automatically

display the incident and reﬂected steps of the selected channel by automating the following tasks:

Turns on the channel.

Turns on a step.

Sets trigger source to TDR.

Sets acquisition to Averaging.

Changes display style to Show

3. Select a channel pair on which to perform a differential TDR measurement. Click Diff to automatically set up the differential measurement for the channel pair.

All the tasks listed in step 2 are performed for both channels and the pulse polarity of the second channel is set to negative.

ements

Vectors.

4. Click the polarity button to toggle the step edge.

5. Set the vertical scale Units to V (volts), Ω (ohms), or ρ (rho).

6. If performing differential TDR, select the channel (TDR module w ith dual channel adjustment) or the even-numbered channel of the channel pair (TDR module with single channel adjustment) for deskew adjustment.

7. Set the Deskew percent value.

8. Click Advanced TDR Setup to set the

TDR step rate, reference source, and enable or disable incident waveform display.

62 DSA8300 Quick Start User Manual

Waveform measur

Quick tips

Use a lower TDR step rate to take measurements on long cables.

For a TDR module with single channel deskew capability, only the even-numbered channel of the module is selectable for deskew. For a TDR module with dual channel deskew capability, both channels of the module are selectable for deskew. (See page 69, Skew and deskewing.)

ements

DSA8300 Q uick Start User Manual 63

Waveform measur

ements

Phase reference

Use phase reference correction when you need to acquire signals with ultra low jitter. Using a phase correction reference clock effectively reduces trigger jitter in the instrument, which lets you measure clock and other phase noise (jitter) with more accuracy.

NOTE. To use the phase reference function, you must have a phase reference module (such as the Tektronix 82A04B), and

a phase reference clock signal that is synchronous to the data to be acquired and connected to the phase reference module. Refer to the application help for more inform ation on using the phase reference function.

1. Select Setup > Phase Ref to display the Phase Reference dialog box.

2. Turn Phase Correction on by selecting Untriggered or Triggered.

Untriggered: Enables the phase

correction timebase, but runs it in a Untriggered mode in which the trigger is ignored for purposes of determining the horizontal acquisition window (for example, when displaying a signal as an eye diagram or for signals where the phase reference clock signal is > 15 GHz).

NOTE. The trigger source must be Free

Run (set in the Setup > Mode/Trigger dialog) to select Untriggered phase correction mode.

Triggered: Enables phase correction

and the clock trigger source is used to determine the horizontal acquisition window.

NOTE. The trigger source must be Clock

and the scope mode Eye or Pattern (set in the Setup > Mode/Trigger dialog) in order to select Triggered phase correction mode.

64 DSA8300 Quick Start User Manual

3. If the connected phase reference clock

includes Spread Spectrum Clock (SSC) modulation, s Clocking (SSC). This enables the instrument to accommodate up to 5000 ppm of SS Reference input clock.

4. Click the Source control to select the

module to which you connected the clock (if more than one phase reference module is installed).

5. Enter the phase reference clock

frequency in the Input Freq ﬁeld, or click List and select a clock reference frequency based on a communications standard.

NOTE. The value entered must be within

±0.15% of the actual reference clock signal frequency.

elect Spread Spectrum

C applied to the Phase

Waveform measur

ements

6. Click the Characterize button to

characterize the reference clock signal connected to the phase reference module, as well as display information about the reference c lock signal. Click

Help for more information.

Phase reference key points

When to use: Use Phase Correction when you need the highest timing ﬁdelity for measurements on input signals.

se correction, when on, uses a phase-reference clock you supply to change the timebase (thereby altering the

Pha sampling and acquisition process) of the main instrument so that jitter measured using this “phase-corrected” timebase is the jitter between the data and your clock. With little instrument trigger jitter present, the phase-corrected acquisitions

reases the timing ﬁdelity of your measurements.

inc

triggered mode: Select the Untriggered Mode when you want acquired waveforms that are phase corrected,

but not acquired relative to a trigger, such as when displaying communication signals as eye diagrams, or when the frequency of your phase correction clock signal is higher than the frequency at which the CLOCK INPUT/PRESCALE

IGGER front panel input can operate.

DSA8300 Q uick Start User Manual 65

Waveform measur

Triggered mode: Select Triggered mode when you want acquired w aveforms that are phase corrected, and acquired relative to a tr Pattern Clock triggered mode to examine serial data patterns with very low jitter or for multi-phase eye diagrams when in Eye Clock triggered mode.

Spread Spectrum Clocking (SSC): Enable SSC support w hen you want to acquire waveforms that are phase corrected and random around the trigger event.

Reference clock signal: You must connect a phase reference clock signal to the selected phase reference clock input source. The instrument then measures the phase reference clock signal to derive the timebase, which is one period of the refere Reference Module simultaneously measures the phase of the supplied reference clock. The instrument uses the phase information to horizontally position the associated data properly in the waveform record. The value you enter in the Input Freq ﬁeld mu

ements

igger event or reference. Sampling is still random around the trigger event. Use this mode when in

acquired relative to a trigger event that is using a spread spectrum clocking signal. Sampling is still

nce clock. Whenever samples are taken on any (or all) of the acquisition-module channels, the Phase

st be within ±0.15% of the actual reference clock signal frequency.

Reference

clock frequency parameter: Because time is measured as periods of the reference clock, you must enter

the frequency of the reference clock so that the instrument can translate period intervals back to time intervals for display and measurement purposes.

Reference clock characterization: Once you have c onnected a clock and entered its frequency, click the Characterize button to

characterize the clock signal. After running the characte rization, you can determine its results by reading the

status in the Phase Reference Setup dialog box.

Reference clock relative signal quality: The relative quality readout (High. Med, or Low) of the characterized phase reference c lock is based on the slew rate of the phase reference clock signal, where a higher slew rate corresponds to a

uality reference signal. Generally, a higher slew rate results in lower system jitter.

higher-q

The easi

est way to improve the jitter of the measurement system is to increase the amplitude and/or frequency of the phase reference clock signal. To get the best jitter measurement performance, use either a full-data-rate reference clock signal or the highest sub-rate clock available, and the maximum available phase reference clock signal level ( up to the maximum

input operating voltage of 2 V

p-p

66 DSA8300 Quick Start User Manual

Histograms

The instrument can display histograms constructed of waveform data. You can display both vertical (amplitude) and horizontal (time or distance) histograms, but only one at a time.

1. Display the Hist (Histogram) dialog box.

2. Check the Enable Histogram box.

3. Click the Source button to select the

waveform source.

4. Select a vertical or horizontal histogram.

5. Use the Display Options to change the

appearance of the histogram.

Waveform measur

ements

6. Click and drag the edges of the histogram

box to enclose a portion of the waveform.

7. The histogram displays at the edge of

the graticule. The histogram statistics are displayed in the readout.

DSA8300 Q uick Start User Manual 67

Waveform measur

ements

Document your results

This instrument can save any number of waveforms, limited only by the space you have to store them. By saving a waveform, you c an recall it at a later time for comparison, evaluation, and documentation. This capability is helpful when you want to:

Recall a waveform for further evaluation or comparison with other waveforms.

Extend the waveform-carrying capacity of the instrument. The instrument supports eight reference, eight channel, and eight math waveforms. If you want more than eight reference waveforms, you can save the additional reference waveforms to disk for recall later.

1. To Save a setup or a waveform, click Save Setup or Save Waveform in the

File menu.

2. To export waveform data, click Export Waveform in the File menu.

3. To print a hard copy to an attached

printer or a network printer, click the print icon in the toolbar.

4. To copy a screen image into another

ation, choose the Print to ﬁle

applic option in the print dialog box. Save the screen image in a format that is

tible with your application, and

compa then insert the screen image into your document.

68 DSA8300 Quick Start User Manual

Skew and deskewi

Skew and deske

The propagation delay inherent in connecting cables and probes can result in inaccurate amplitude and time-correlated measurements. This is caused by the difference between two or more delays, known as skew. Skew can be present in multi-channel applications, and is of particular concern in differential systems. To obtain the best measurement and analysis results from your instrument, you will need to remove skew, a process known as deskewing.

In differential (non-TDR) applications, skew can occur in acquired signals as they propagate from their source to the mainframe. In TDR applications, skew can occur in signals that propagate from the instrument to the device or system under test (DUT), speciﬁcally the TDR stimulus pulses, as well as from acquired signals.

The following procedures and examples explain how to minimize and measure skew in non-TDR and TDR systems.

Quick tips

Minimize s

Use the Dif

modules. (See page 28.)

Measure and match your cables. TDR modules such as 80E10B, 80E08B, and 80E04 enable you to measure cable

delays with very high precision.

In differential systems, use differential probes or differential SMA to single-ended active convertors, such as the Tektronix

P7380SM

kew by using balanced cable pairs.

ferential Channel Alignment application to align input channels and TDR steps on supported electrical

wing

DSA8300 Q uick Start User Manual 69

Skew and deskewi

Methods to adjust skew

Using a phase adjuster

Skew can be adjusted with the use of a variable delay line (phase adjuster). Tektronix part number 015-0708-00 is a phase adjuster with a 25 ps range and VSWR of 1.3:1 at 18 GHz. The advantage of a phase adjuster is that it is functionally invisible. Th

e disadvantage is that signal ﬁdelity is slightly impacted.

Channel de

The DSA8300 provides two different methods for input signal deskewing (correcting signal timing differences that are external to the instrument): channel deskew and channel delay. While both channel deskew and channel delay let you compensate individual channels for external signal path timing differences, they have different impacts on acquisition performance.

Channel deskew (available for all 8000 series sampling modules) adds a speciﬁed delay to the trigger-initiated acquisition strobe signal that is sent to all module channels simultaneously. Using channel deskew requires separate acquisitions (on sequential triggers) to acquire data for each channel with a different channel deskew value.

Channel deskew works best for repetitive signals. Data is captured over sequential triggers, with the instrument changing the channel deskew value for each channel per acquisition. The number of acquisitions needed to display the waveforms increases linearly as a function of the number of different channel deskew settings for actively acquired channels. To get the best performance when using channel deskew, keep the number of unique deskew values to a minimum.

Channel delay (available with 80E07B, 80E08B, 80E09B, 80E10B, 80E11, and 80E11X1 electrical sampling m odules) is a hardware-based signal delay that can be set on individual channels. Channel deskew enables acquiring multiple adjusted channels on a common set of triggers, assuring that the s ignals acquired are properly time correlated. This is particularly important when acquiring multiple non-repetitive (random) signals. Random signals are signals that do not repeat on equivalent trigger events from acquisition to acquisition.

Channel delay provides the best performance for all s ignals including random signals, as all channels are acquired in a single acquisition pass. Use channel delay and/or phase adjusters to deskew random signals.

Your signal deskewing needs may require you to use both channel deskew and channel delay. For optimum performance, set the channel deskew parameter to be the same value for all active channels, and use the channel delay parameter (on supported modules) to make ﬁne adjustments of the signal deskew for each channel. Setting the channel deskew parameter to the same value for a ll channels enables the instrument to acquire all channels in a single acquisition pass.

skew and channel delay

70 DSA8300 Quick Start User Manual

Setup considerations and procedures

Before starting, there are two setup choices to be made. These are explained in the following sections.

Reference plane

This is the location at which you ultimately want both the acquisition signals and TDR steps (if you are using TDR) to be time aligned. (S

ee Figure 1 on page 71.) Common choices for the reference plane include:

Skew and deskewi

The instrum

The inputs t

The inputs

For best re desired reference plane, ensure that the signal paths for each of the differential signals are precisely matched between the DUT and the selected reference plane.

If you are using the 80A05 Clock Recovery Module and routing your differential signals through this module to an acquisition module, y 80A05 or the connecting cables are accounted for by the deskew procedure.

ent front panel

o a DUT (Device Under Test) attached to cables

to a DUT within a ﬁxture

sults, select the reference plane at the DUT interface. If it is not possible to inject the signal source at the

ou must leave the 80A05 connected during the deskew procedure. This ensures that any skew introduced by the

Figure 1: Schematic diagram of reference planes in relation to signal

DSA8300 Q uick Start User Manual 71

Skew and deskewi

Acquisition deskew signal sources

There are three possible signals that may be used as a source to be connected to, or “injected” into, the reference plane.

A TDR step from an extra (unused) TDR-capable module channel (recommended source)

A stable, fast-edge, low-repetition rate signal that is synchronous to an external trigger source

The TDR CLOCK OUT signal from the instrument front panel

The TDR step source is preferred because it provides a fast, stable edge at a low repetition rate that is ideal for deskewing signal paths. The low repetition rate signal should have a repetition rate much lower than the amount of skew that needs to be removed so that the relative skew between signals can be correctly determined.

The following are three procedures to set up your instrument in preparation to perform an Acquisition Deskew. Choose the procedure related to the signal source you are using.

TDR step source

1. Display the TDR setup dialog box by

selecting TDR from the Setup menu.

2. Turn on the step by clicking the Preset button for the source channel. This will turn on the step and set other scope parameters (such as trigger source) in preparation for making measurements.

NOTE. Use only the rising edge polarity.

Autoset in this mode will not ﬁnd a negative-going edge.

3. Turn off the display of the channel by unchecking the ACQ On box for the source channel. This channel does not need to be displayed.

4. Connect a cable or TDR probe to the source channel to use for injecting the TDR step signal into the reference plane.

72 DSA8300 Quick Start User Manual

External signal

Skew and deskewi

1. Set the trigge

[Prescale/Clock] as appropriate for the

bandwidth of the trigger signal.

2. Connect the trigger signal to

the appropri (TRIGGER DIRECT INPUT or CLOCK INPUT/PRESCALE TRIGGER).

3. Connect a cable or TDR probe to the

low-repeti synchronous with the trigger signal to use for injecting the signal into the reference p

r source to Direct or Clock

ate mainframe input

tion source signal that is

lane.

TDR CLOCK OUT

1. Set the trigger source to TDR.

2. Connect a cable or TDR probe from the

TDR CLOC panel of the mainframe to the reference plane of the DUT.

NOTE. Yo

terminated SMA T, a 50 Ω terminated power divider, or a 2 – 6 dB attenuator on the TDR CLO amplitude to an acceptable amplitude for the module.

K OUT connector on the front

u may need to use a 50 Ω

CK OUT connector to reduce the

ture or DUT locations that do not support a cable attachment, the acquisition deskew signal can be injected by a

For ﬁx P8018 single-ended TDR probe.

DSA8300 Q uick Start User Manual 73

Skew and deskewi

Acquisition deskew procedure

The following procedure outlines a method to deskew a single differential (or common) mode system (one signal pair). The procedure can be extended to additional signal pairs as needed. This method time aligns the acquisition system such that the data is acquired simultaneously at the selected reference plane. The procedure accounts for delay mismatches between the differential signal lines from the reference plane to the a cquisition inputs.

The following example procedure uses Ch3 as the + channel and Ch4 as the – channel.

1. Using the previous discussions on deskew signal types and reference planes, inject your selected source signal at the selected reference plane for the + channel. Turn Ch3 on.

2. Select Utilities > Au to set Properties. Choose Edge Mode then click the Autoset button to autoset the signal. Click Close to close the dialog box.

3. Click on the Acq Mode drop down control and choose Average to enable

ion averaging.

acquisit

4. Click the Deﬁne Math button on the tool bar or push the Math front panel button to display the Deﬁne Math dialog box.

74 DSA8300 Quick Start User Manual

5. Create the following math expression

using the buttons in the dialog: Filter(C3).

6. Set the Filter Risetime to a value that is

less than half signal.

7. Check the On box to display the math

waveform then close the dialog.

the risetime of the source

Skew and deskewi

NOTE. At thi

Ch3 display by pressing the CH button on the front panel and then push the 3 button.

8. Select File > Save Waveform. Save

M1 into R1 by clicking the Save button. Click Close to dismiss the dialog box. R1 will automatically be displayed.

9. Connect your selected signal source to

the – channel.

s point, you can dismiss the

10. Displ

DSA8300 Q uick Start User Manual 75

ay the Deﬁne Math dialog box and modifythemathexpressiontousethe – channel: Filter(C4). You can use the

pace button to edit the expression.

Backs Click OK to apply the changes and dismiss the dialog box.

Skew and deskewi

11. Select Utilities > Autoset Properties. Choose Edge Mode then click the Autoset butto Click Close to close the dialog box.

n to autoset the signal.

12. Click Setu Measurement Setup tab.

13. Click the Select Meas button and select the Pulse - Timing > Delay measurem Source 2 to M1.

14. Using the previous discussion on Methods to Adjust Skew, adjust the skew by chang for C 4 or by changing the external phase adjustor until the measurement reads near zer

p > Measurement to open the

ent. Set Source 1 to R1 and

ing the Delay or Deskew value

76 DSA8300 Quick Start User Manual

TDR step deskew procedure

TDR S tep Deskew time aligns the TDR steps such that the stimulus steps arrive at the selected reference plane at precisely the same time. This procedure requires that an Acquisition Deskew be performed ﬁrst so that the acquisition channels are properly aligned. It is important that the same reference plane be used for both the Acquisition Deskew and the TDR Step Deskew procedures to avoid possible misalignment of the signals.

1. Ensure that either an open or a short is

present at the reference plane for the TDR channels to be deskewed. For best results, both channels should have the same termination.

NOTE. Before proceeding, be sure to set

the polarity of the TDR steps to match the step polarities of your application if they are different than the defaults used here (for example, if you are using a common mode measurement).

2. Select Setup > TDR to open the TDR

Setup dialog box.

Skew and deskewi

3. Click the differential preset button for

the measurement channels. The TDR preset sets the odd channel to a positive step and the even channel to a negative step. In this procedure, we will use Ch3 and Ch4 as the positive and negative channels.

4. Change the units for both channels to V

(Volts), then dismiss the dialog box.

DSA8300 Q uick Start User Manual 77

Skew and deskewi

5. Select Utilities > Autoset Properties to display the Autoset Properties dialog box. Choose TD Display Incident Edge check box.

6. Perform an autoset by clicking the Autoset button in the dialog box then dismiss the d

a. Given reasonably matched paths to the DUT, both reﬂected edges should be displaye graticule. If not, increase the Horizontal Scale until both reﬂected edges are displayed

b. Adjust Horizontal Scale (and Position, if necessary), such that the two reﬂected edges are v other in order to obtain good horizontal resolution. A 10 to 1000 ps/div horizontal scale is a

R Mode and clear the

ialog box.

d near the 3rd horizontal

on the screen.

isible and apart from each

typical target.

7. Click th

8. Create t

9. Set the Filter Risetime to a value that is

10. Check

11. Click Apply.

12. Select M2 from the Math Waveform

e Deﬁne Math button on the tool bar or push the Math button on the front panel to display the Deﬁne Math dialog box.

he math expression Filter(C3)

for M1.

less than half the risetime of the reﬂected

TDR ste

the On box to display the math

waveform.

area and create a math expression Filter(C4) for the – channel. Set the Filter Risetime to a value that is less than half the risetime of the reﬂected TDR step. Select the On box to display the math waveform. Dismiss the dialog box.

78 DSA8300 Quick Start User Manual

13. Display the Measurement Setup dialog

box by choosing Measurement from the Setup menu.

Skew and deskewi

14. Click the Sele

ct Meas button and select

Pulse-Timing > Delay.

15. Click th

e Source 1 button and do the

following:

a. Click the Source tab and set Source 1toM1.

b. Click the Region tab and set the Slope to +/-.

DSA8300 Q uick Start User Manual 79

Skew and deskewi

16. Click the Source 2 button and do the following:

a. Click the So 1toM2.

b. Click the Region tab and set the Slope to +/-.

urce tab and set Source

17. O pen the S

the TDR tab. Use the Step Deskew area to select which channel you want to adjust Deskew value until the measurement reads near zero.

NOTE. Fo

conﬁguration (such as instrument, modules, cables, and/or ﬁxtures), save the setup by

ing File > Save Setup As from the

select menu bar.

etups dialog box and click

for deskew. Adjust the Step

r future use with the same

80 DSA8300 Quick Start User Manual

Cleaning the ins

trument

Cleaning the i

Periodically you may need to clean the exterior of your instrument. To do so, follow the instructions in this section.

WARNING. Before performing any procedure that follows, power down the instrument and disconnect it from line voltage.

Exterior cleaning

CAUTION. To prevent getting moisture inside the instrument during external cleaning, use only enough liquid to dampen the

cloth or applicator.

Clean the exterior surfaces of the chassis with a dry lint-free cloth or a soft-bris tle brush. If any dirt remains, use a cloth or swab dipped in a 75% isopropyl alcohol solution. Use a swab to clean narrow spaces around controls and connectors. Do not use abrasive compounds on any part of the chassis, as they may damage it.

CAUTION. Avoid the use of chemical cleaning agents, which might damage the plastics used in this instrument. Use a 75%

isopropyl alcohol solution as a cleaner and wipe with a clean cloth dampened with deionized water. (Use only deionized water w hen cleaning the menu buttons or front-panel buttons.) Before using any other type of cleaner, consult your Tektronix Service Center or representative.

nstrument

Flat panel display cleaning

The instrument display is a soft plastic display and must be treated with care during cleaning.

CAUTION. Improper cleaning agents or methods can damage the ﬂat panel display. Avoid u sing abrasive cleaners or

commercial glass c le with excessive force.

Clean the ﬂat panel d Wipes, #05701, available from Kimberly-Clark Corporation).

If the display is very dirty, moisten the wipe with distilled water or a 75% isopropyl alcohol solution and gently wipe the display surface. Avoid using excess force or you may damage the plastic display surface.

Optical connecto

Keep the optical module connectors clean to maintain measurement accuracy. The optical module user manual contains the procedures for cleaning optical connectors.

aners to clean the display surface. Avoid spraying liquids directly on the display surface or scrubbing it

isplay surface by gently rubbing the display with a clean-room wipe (such as Wypall Medium Duty

r cleaning

DSA8300 Q uick Start User Manual 81

Restoring the op

erating system

Restoring the operating system

You can restore the Microsoft Windows 7 operating system (OS) in the event that the operating system will not start when powering on the instrument.

CAUTION. The restore process reformats the hard drive and reinstalls the operating system. All data on the disk is lost. If

possible, save important ﬁles to external media before you perform an operating system restore.

You d o not need to reinstall the TekScope application if you restore from the instrument hard drive. If you installed a newer version of the DSA8300 TekScope application than was distributed with the instrument, you will need to download and install the newer version.

Restoring the operating system from the instrument hard disk drive

This instrument contains an operating system and software applications restore ﬁle on a separate partition of the hard disk drive.

NOTE. Thi

that were shipped with the instrument.

1. Restart the instrument. During the boot-up process you will see the following message in the center of the screen:

2. Repeatedly press the keyboard F5 key until the Acronis True Image Tool opens. There is a three-second time period

3. Click Restore.

4. In the Conﬁ rmation dialog box, click Yes to restore the instrument operating system and software, or No to exit the restore

5. Go to

s restore method reinstalls the operating system and TekScope application software and drivers to the versions

Starting Acronis Loader... press F5 for Acronis Startup Recovery M anager

en the message appears until the instrument proceeds with the normal instrument startup. If the instrument

from wh does not open the Acronis application, wait until the instrument completes the power on cycle, power off the instrument, then power on the instrument and try again.

ss. The restore process takes approximately 30 minutes; the actual time depends on the instrument conﬁguration.

proce

the Tektronix Web site (www.tektronix.com) and search for, download, and install the latest DSA8300 TekScope

application software onto your instrument.

82 DSA8300 Quick Start User Manual

Tektronix DSA8300 Primary User

Specifications and Main Features

Frequently Asked Questions

User Manual

General safety summary

Servicesafetysummary

Terms in this manual

Symbols and terms on the product

EMC compliance

Safety compliance

Environmental considerations

Preface

Documentation

Conventions used in this manual

Key features

Install your instrument

Standard accessories

Operating considerations

Powering the instrument on and off

Adding a second monitor

Installing m odules

Typical module installations

Install a module

Removeamodule

Front panel

Control panel

Rear panel

Computer I/O panel

The user interface

Display - single waveform view

Accessing application help

Inspect your instrument

Verify internal diagnostics pass

Signal path compensation

Dark-level and user wavelength gain compensations

Align acquisition (and TDR steps) for two-channel modules

Acquisition

Setting up signal input

Using Autoset

Accessing the Setup dialog boxes

Changing the acquisition mode

Waveform databases

Setting the display style

Triggers

Triggering concepts

Setting trigger controls

Setting Pattern Sync and FrameScan controls

Checking trigger status

Taking automatic measurements

Turning off automatic measurements

Cursor measurements

Math waveforms

Display a communication signal

Mask testing

FrameScan

To use TDR

Phase reference

Histograms

Document your results

Methods to adjust skew

Setup considerations and procedures

Acquisition deskew procedure

TDR step deskew procedure

Exterior cleaning

Flat panel display cleaning

Restoring the operating system