Tektronix DSA8300 Primary User

Download

DSA8300 Digital Serial Analyzer

ZZZ

Quick Start User Manual

*P071289702*

071-2897-02

DSA8300 Digital Serial Analyzer

ZZZ

Quick Start User Manual

www.tektronix.com

071-2897-02

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.tektronix.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]

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

Compliance information ............................................................................................................... v

EMC compliance ................................................................................................................. v

Safety compliance............................................................................................................... vii

Environmental considerations ................................................................................................... ix

Preface................................................................................................................................. x

Documentation ...................................................................................................................x

Conventions used in this manual..... . . . . ...... . . . . . ....... . . . . ....... . . . . . ....... . . . . ...... . . . . . ..... . . . . . . ....... . . . . ...... . . . x

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

Display - magniﬁed waveform views ........................................................................................... 19

Accessing online help........................................................................................................... 20

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

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

mizing measurement accuracy .................................................................................................. 23

Opti

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

Accessing theSetup dialog boxes ............................................................................................. 33

Changing the acquisition mode. . . ..... . . . . . ....... . . . . ....... . . . . ....... . . . . ....... . . . . ....... . . . . ....... . . . . ....... . . . . ....... 34

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

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

Table of Content

DSA8300 Quick Start User Manual i

Table of Content

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

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

Skew and deskewing ................................................................................................................. 68

Cleanin

Restoring the operating system ....... . . . . . ..... . . . . . ........ . . . . ...... . . . . . ....... . . . . . ..... . . . . . ........ . . . . ...... . . . . . ....... . . . .. 81

Index

Triggering con

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

Setting Pattern Sync and FrameScan controls ................................................................................ 42

Checking trig

Taking automatic measurements............................................................................................... 44

Turning off a

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

Math waveforms................................................................................................................. 52

Display a co

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

FrameScan ...................................................................................................................... 60

To use TDR...................................................................................................................... 6

Phase reference. . . ..... . . . . . ....... . . . . ..... . . . . . ....... . . . . ....... . . . . ..... . . . . . ...... . . . . . ..... . . . . . ....... . . . . ..... . . . . . ..... 63

Histograms ......................................................................................................................66

Document

Methods toadjust skew......................................................................................................... 69

Setup con

Acquisition deskew procedure.. . . . . . ....... . . . . ...... . . . . . ....... . . . . ....... . . . . ...... . . . . . . ...... . . . . . ...... . . . . . ....... . . . . .. 73

TDR step deskew procedure ...... . . . . ..... . . . . . ..... . . . . . ...... . . . . ...... . . . . ..... . . . . . ...... . . . . ..... . . . . . ..... . . . . . ...... . . . 76

g the instrument .............................................................................................................. 80

Exterior cleaning . . . ....... . . . . ...... . . . . . ....... . . . . ....... . . . . ........ . . . . ....... . . . . ....... . . . . ....... . . . . ...... . . . . . . ...... . .80

Flat panel display cleaning... . . . . . ....... . . . . ...... . . . . . ..... . . . . . ...... . . . . . ....... . . . . ....... . . . . ...... . . . . . ....... . . . . ....... 80

Optica

Restoring the operating system from the instrument hard disk drive .. . . . . . ........ . . . . . ...... . . . . . . . ...... . . . . . . ........ . . . . 81

ring the operating system with restore media .... . . . . . . ..... . . . . . ....... . . . . ........ . . . . ....... . . . . . ...... . . . . . ..... . . . . 82

Resto

cepts ............................................................................................................. 38

ger status ......................................................................................................... 43

utomatic measurements .......................................................................................... 48

mmunication signal . . . ...... . . . . ...... . . . . . ..... . . . . . ...... . . . . . ..... . . . . . ....... . . . . ..... . . . . . ...... . . . . . ..... . . . . 53

your results .......................................................................................................... 67

siderations and procedures..... . . . . . ....... . . . . ..... . . . . . ...... . . . . . ..... . . . . . ...... . . . . . ..... . . . . . ....... . . . . ..... . 70

l connector cleaning... . . . . . ....... . . . . ....... . . . . ..... . . . . . ...... . . . . . ..... . . . . . ....... . . . . ..... . . . . . ...... . . . . . ..... . . . . 80

ii DSA8300 Quick Start User Manual

General safety s

ummary

General safet

Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it.

To avoid potential hazards, use this product only as speciﬁed.

Only qualiﬁed personnel should perform service procedures.

While using this product, you may need to access other parts of a larger system. Read the safety sections of the other component manuals for warnings and cautions related to operating the system.

To avoid ﬁre or personal injury

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

Connect and disconnect properly. Do not connect or disconnect probes or test leads while they are connected

to a voltag

Ground th

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

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

product

The inpu

e source.

e product.

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

ts are not rated for connection to mains or Category II, III, or IV circuits.

y summary

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

Do not ap

Power d

Do not block the power switch; it must remain accessible to the user at all times.

ply a potential to any terminal, including the common terminal, that exceeds the maximum rating of that terminal.

isconnect.

The power switch disconnects the product from the power source. See instructions for the location.

Do not operate without covers. Do not operate this product with covers or panels removed.

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

qualiﬁed service personnel.

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

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

Wear eye protection. Wear eye protection if exposure to high-intensity rays or laser radiation exists.

Do not operate in wet/damp conditions.

Do not operate in an explosive a tmosphere.

Keep product surfaces clean and dry.

Provide proper ventilation.

oper ventilation.

Refer to the manual's installation instructions for details on installing the product s o it has

DSA8300 Quick Start User Manual iii

General safety s

Termsinthismanual

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 o r 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.

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

ummary

iv 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

1236

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

formation

IEC 6100

0-4-6:2003. Conducted RF immunity

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

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 m ode 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 Quick Start User Manual v

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 wit

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

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

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

vi DSA8300 Quick Start User Manual

Safety compliance

EC declaration of conformity – low v oltage

Compliance was demonstrated to the following speciﬁcation as listed in the Ofﬁcial Journal of the E uropean Communities:

Low Voltage Directive 2006/95/EC.

EN 61010-1: 2001. Safety requirements for electrical equipment for measurement control and laboratory use.

Compliance info

rmation

U.S. nation

UL61010-1, 2nd Edition. Safety requirements for electrical equipment for measurement, control, and laboratory usePart 1.

ally recognized testing laboratory listing

Canadian certiﬁcation

CAN/CSA-C22.2 No. 61010-1-2004. Safety requirements for electrical equipment for measurement, control, and laboratory use- Part 1

Additio

nal compliances

IEC 61010-1: 2001. Safety requirements for electrical equipment for measurement, control, and laboratory use.

Equipment type

nd measuring equipment.

Test a

Safety class

Class 1 – grounded product.

Pollution degree description

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

r which they are rated.

llution Degree 1. No pollution or only dry, nonconductive pollution occurs. Products in this category are generally

Po 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 must be expected. This location is a typical ofﬁce/home environment. Temporary condensation

ccurs only when the product is out of service.

ollution Degree 3. Conductive pollution, or dry, nonconductive pollution that becomes conductive due to condensation.

P These are sheltered locations where neither temperature nor humidity is controlled. 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.

DSA8300 Quick Start User Manual vii

Compliance info

Pollution degree

Pollution Degree 2 (as deﬁned in IEC 61010-1). Note: Rated for indoor use only.

Installation (overvoltage) category descriptions

Terminals on this product may have different installation (overvoltage) category designations. The installation categories are:

Measurement Category IV. For measurements performed at the source of low-voltage installation.

Measurement Category III. For measurements performed in the building installation.

Measurement Category II. For measurements performed on circuits directly connected to the low-voltage installation.

Measurement Category I. For measurements performed on circuits not directly connected to MAINS.

rmation

Overvolta

Overvoltage Category II (as deﬁned in IEC 61010-1)

ge category

viii DSA8300 Quick Start User Manual

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 extraction 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 of such substances into the environment and to reduce the use of natural resources, we encourage you to recycle this product in 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 electrical and electronic equipment (WEEE) and batteries. For information about recycling options, check 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 state

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

Compliance info

rmation

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.

DSA8300 Quick Start User Manual ix

Preface

Documentation

This manual describes the installation and operation of the DSA8300 Digital Serial Analyzer including basic operation and concepts. For more detailed information, see the online 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 online 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

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

x DSA8300 Quick 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 integrated 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 Quick 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 w aveforms

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 online 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 product 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 Kit (CD)

DSA8300 Online Help (part of application software)

DSA8300 Programmer Online Manual (part of application software)

DSA8300 Product Software Install Kit

DSA8300 Operating System Restore 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

020-3082-XX

Not orderable

020-3088-XX

020-3089-XX

during order placement

013-0347-00

trument

DSA8300 Quick 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 Analyzer Speciﬁcations and Performance Veriﬁcation Manual for a complete list of speciﬁcations.

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 watts (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 Quick 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 DVI-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 DVI-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 Quick 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 Quick 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/Change 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:

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

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

The Vie

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

For TekScope software versions earlier than 6.1.X, always power off the mainframe to remove or install modules. Failure to

ay result in damage to the module or mainframe. Download the latest DSA8300 software from www.tek.com/software.

do so m

1. Sele

ct Utilities > View/Change Module Conﬁg to open the module conﬁguration dialog box.

DSA8300 Quick 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 compartments and the control 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 Quick 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 m easurement 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 most 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 comprehensive 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 Quick 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. COM 1 6. PS2 (keyboard)

7. PS2 (mouse) 8. COM 2

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, math waveform setup, waveform database, autoset, clear data, acquisition mode, triggering, and applications.

3. Menu Bar. Access to data I/O, printing online 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 Quick 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 w aveform 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 Quick Start User Manual 19

Getting acquain

ted with your instrument

Accessing online help

In-depth information about all the features of your instrument is available in the online 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 Quick 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 Run.

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 compensation 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 conditions. 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 Quick 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 Quick 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 wavelength 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 Quick 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 Differential 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 ﬁrmware version 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 Online 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 online 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 Quick 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

; when 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 of 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 Quick 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 Quick 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 condition 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 P ersistence 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 waveform 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 Quick 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 graticule color and screen background.

DSA8300 Quick Start User Manual 37

Triggers

This section contains concepts and procedures for using the trigger system. Detailed information is available in the online 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 sample. 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:

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

Alowused 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 where you need additional conditioning of the input trigger signal (such as trigger level, slope, and so on). This ﬂexi

An in 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 150 Mb/s up to 15 Gb/s (and will typically work up to 20 Gb/s).

Internal Clock-recovery trigger. This trigger source can be an optical sampling module that is equipped with a

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

clockdepend 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.

ument front panel supplies a replica of the TDR clock,

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

bility comes at the cost of increased instrumentation jitter.

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

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 Mode. Available trigger modes are Eye, Pattern, and Other:

Select Eye mode if the signal you are acquiring is synchronous with the selected clock source and you want 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 s ignal you are acquiring is synchronous with the selected 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 Test i ng (min i mum jitter)

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

Optical or Electrical Serial Data (NRZ) Mask and Parametric Test i ng ( w/ c lock 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 Quick Start User Manual 39

Triggers

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

Application

TDR/TDT and S-Parameter Analysis

Low Repetition Rate Signals

Waveform display 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 Quick 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 dialog box. Changing

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 c he 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 Quick 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 online 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 Anno tation s 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 Quick 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, m ake sure

ion.

ize a measurement:

To l ocal

13. Select

14. Select

15. Click t

16. Use the G1 (Gate1) and G2 spin controls

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 you 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 Quick 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 is 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 Quick 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 Quick 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 w aveform,

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 Quick 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). This instrument provides many predeﬁned standard masks (including Ethernet, SONET/SDH, and Fiber Channel (Optical and Electrical)). You can also use the mask edit tools to create a custom mask.

1. Select the waveform to be mask tested

from the drop-down list under Source.

2. Select a standard mask in the

Mask setup dialog box. Selecting a communication standard or user-deﬁned mask automatically:

Displays the mask on screen and

autosets for the mask if Automatic is checked in the dialog box.

Enables mask testing.

Displays mask count statistics in

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

Waveform measur

ements

3. If you want, disable mask counts.

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

4. Check Use Wfm Database to use a

waveform database as the waveform source.

5. If applicable to your selected Comm

Standard, click the Vert tab and select a signal conditioning ﬁlter. Then click the Mask tab to return to the mask settings.

To autoset the waveform to the mask:

6. Click the Autoset Data button to perform

a manual autoset on the mask-source

eform.

wav

DSA8300 Quick Start User Manual 55

Waveform measur

7. Select the HiLow Method to determine the signal High and Low values, used to align the inpu

NOTE. When using a standard mask,

the instrument automatically selects the appropriate

ements

t signal to the mask:

HiLow Method:

Mean sets th mean value of the High level (topline) and Low level (baseline), taken within the ﬁxed eye eye), to align the input signal to the NRZ mask.

Mode sets t the High level (topline) and Low level (baseline), taken across one unit interval of the eye signal to the NRZ mask.

To set a Stop Action:

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

9. In the Acq Setup dialog box, check the Condit

10. In the C a mask-related criteria, such as Mask Total Hits and set a count, such as 1, in

the co

These settings stop acquisition when mask violations satisfy the criteria you set.

e Mask Autoset to use the

aperture (center 20% of the

he Mask Autoset to use

diagram, to align the input

ion option under Stop After.

ondition pulldown list, select

unt box.

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

56 DSA8300 Quick Start User Manual

To a ut oﬁt 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.

12. Push RUN/ST

(or use the automatic Stop After Condition; see steps 8 - 10).

13. Click the Au toﬁt Mask buttoninthe

Mask setu button is grayed out, select Enable Mask

Counts at the top of the Mask tab.

To restart testing:

14. To restart after a Stop After condition

occurs, push the front-panel CLEAR DATA but

front-panel button.

15. Read th

percent (if enabled) in the readout.

to-ﬁtting only works when

OP to stop data acquisition

p tab. If the Auto ﬁtMask

ton, followed by the RUN/STOP

e mask-hits count and margin

16. You can use Mask Margins to explore

design margins of your communications

gnal.

DSA8300 Quick 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 signal to be tested against the mask. View the results in the Mask 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 Quick 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

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, complete waveforms or of the bit sequences leading up to a failure. This ability to identify 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.

ements

3. Click Enabled in FrameScan.

4. Set the Scan Bits to the number of bits

or subframes to acquire.

60 DSA8300 Quick Start User Manual

To use TDR

To take TDR measurements, you must have 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.

Turnsonastep.

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.

Vectors.

Waveform measur

ements

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 with 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.

DSA8300 Quick Start User Manual 61

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 68, Skew and deskewing.)

ements

62 DSA8300 Quick Start User Manual

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 online help for more information on using the phase reference function.

1. Select Setup > Phase Ref to display the

Phase Reference dialog box.

Waveform measur

ements

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.

DSA8300 Quick Start User Manual 63

Waveform measur

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 c ommunications standard.

NOTE. The value entered must be within

±0.15% of the actual reference clock signal frequency.

ements

elect Spread Spectrum

C applied to the Phase

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 clock 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.

64 DSA8300 Quick Start User Manual

Waveform measur

Triggered mode: Select Triggered mode when you want acquired waveforms that are phase corrected, and acquired

relative to a tr

igger event or reference. Sampling is still random around the trigger event. Use this mode when in Pattern Clock triggered mode to examine serial data patterns with very low jitter or for multi-phase eye diagrams when in E ye Clock triggered mode.

Spread Spectrum C locking (SSC): Enable SS C support when you want to acquire waveforms that are phase

corrected and

acquired relative to a trigger event that is using a Spread Spectrum Clocking signal. Sampling is still

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

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

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

ements

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 connected a clock and entered its frequency, click the Characterize

button to

characterize the clock signal. After running the characterization, 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) o f the characterized phase

reference clock 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

DSA8300 Quick Start User Manual 65

Waveform measur

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.

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.

66 DSA8300 Quick Start User Manual

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 can 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 waveformstodiskforrecalllater.

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.

Waveform measur

ements

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.

DSA8300 Quick Start User Manual 67

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. S kew can be present in multi-channel applications, and is of particular concern in differential systems. To obtain the best m easurement 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

68 DSA8300 Quick Start User Manual

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.

Skew and deskewi

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 s peciﬁed delay to the trigger-initiated acquisition strobe signal that is sent to all module channels simultaneously. Using channel deskew requires separate a cquisitions (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 modules) 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 signals 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 signals 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 all channels enables the instrument to acquire all channels in a single acquisition pass.

skew and channel delay

DSA8300 Quick Start User Manual 69

Skew and deskewi

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 70.) Common choices for the reference plane include:

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 m atched 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

70 DSA8300 Quick Start User Manual

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 A cquisition 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.

DSA8300 Quick Start User Manual 71

Skew and deskewi

External signal

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.

72 DSA8300 Quick Start User Manual

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 acquisition 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 > Autoset Properties.

Choose Edge Mode then click the Autoset button to autoset the signal. Click Close to close the dialog box.

Skew and deskewi

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.

DSA8300 Quick Start User Manual 73

Skew and deskewi

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

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

74 DSA8300 Quick Start User Manual

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.

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.

Skew and deskewi

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 C4 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

DSA8300 Quick Start User Manual 75

Skew and deskewi

TDR step deskew procedure

TDR Step 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 s hort 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.

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.

76 DSA8300 Quick Start User Manual

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.

Skew and deskewi

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

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.

the On box to display the math

DSA8300 Quick Start User Manual 77

Skew and deskewi

13. Display the Measurement Setup dialog box by choosing Measurement from the Setup menu.

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 +/-.

78 DSA8300 Quick Start User Manual

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

Skew and deskewi

17. Open 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

DSA8300 Quick Start User Manual 79

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-bristle 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 when 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 d ispl ay and must be treated with care during cleaning.

CAUTION. Improper cleaning agents or m ethods can damage the ﬂat panel display. Avoid using abrasive cleaners or

commercial glass cle 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

80 DSA8300 Quick Start User Manual

Restoring the op

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. A ll data on the disk is lost. If

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

You will need to reinstall the TekScope application if you restore the OS from the DVD recovery media. You will not need to reinstall the TekScope application if you restore from the instrument hard drive.

Restoring the operating system from the instrument hard disk drive

These instruments contain an operating system restore ﬁle on a separate partition of the hard disk drive.

erating system

NOTE. This

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

Starting Acronis Loader... press F5 for Acronis Startup Recovery Manager

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

from wh not open the Acronis application, power off the instrument, then power on the instrument and try again.

3. Click Restore.

4. In the Conﬁrmation dialog box, click Yes to restore the instrument operating system, or No to exit the restore process.

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

restore method reinstalls the operating system and the TekScope application software and drivers.

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

DSA8300 Quick Start User Manual 81

Restoring the op

erating system

Restoring the operating system with restore media

NOTE. This procedure requires that the DVD drive is set as the ﬁrst boot device (this is the default setting).

NOTE. Yo u c a n

1. Insert the OS recovery media DVD disc 1 in the instrument DVD drive.

2. Restart the instrument. The restore software opens automatically if the DVD drive is the ﬁrst bootable device. If the

DVD drive is not the ﬁrst bootable device you will need to enable it as the ﬁrst bootable device before performing a restore fr

3. Click Rest

4. In the Conﬁ

screen instructions. You will need to swap DVD 1 and DVD 2 as instructed.

5. When the restore process is completed, remove the disc and restart the instrument. The instrument will open into the operating system, settings, and appearance as shipped from the factory.

6. Proceed to restoring the TekScope product software and any additional applications. Follow the installation instructions that shi

only use restore discs on the instrument for which they were created.

om the DVD disc.

ore.

rmation dialog box, click Yes to restore the operating system, or No to exit the restore process. Follow on

pped with the DSA8300 Application Install CD.

82 DSA8300 Quick Start User Manual

Index

Accessories, Acquisition

set Stop mode & action, 34

Acquisition

how to set, 34

Annotations, 47

show, 45

Automatic measurements

how to localize (gates), 46

Autoset, 3

modes

Channel alignment application, 28 Channel delay, 69 Channel d Characterize

Cleaning

Cleanin

Cleaning optical connectors, 80 Commun

Compen

Compensation indicator, 17 Compl

Compu Control panel, 13 Control panel map, 14 Cont Cursor measurements, 49 Cursors

eskew, 69

phase correction, 64

instrument exterior, 80 instrument, how to, 80

g and inspection

ﬂat panel display, 80

ication signal, 53 signal:mask testing, 55

sation, 23

how to perform, 23

iance information, v EMC, v Safety, vii

ter I/O panel, 16

rols bar, 17

s, 49

HBar V Bars, 49

Dark-level compensation

w to perform, 26

Default setup, 31

Deskew, 68

acquisition deskew, 73 reference pl signal sources, 71

TDR step, 76 Diagnostics DiffChAlign application, 28 Differential Channel Alignment, 28 Dimensions Display

map - main & mag views, 19

map - main v Display map, 18 Display style

normal, 36

show vectors, 36 Document results, 67 Document Dual monitor, 6

ane, 70

,21

iew, 18

ation, x

Enable histogram, 66

mental

Environ

speciﬁcations, 4 Environmental considerations, ix Export

waveform, 67 Extended desktop, 6

res, 1

Featu Flat panel display

cleaning, 80

e Scan, 60

Fram Front panel

connectors, 13

ticule

Gra

color, 37

style, 37

ars cursor, 49, 50

Histogram

enable, 66

statistics, Histograms, 66 Horizontal

set up proced

ure, 29

Incoming inspection, 21 Input connectors

speciﬁcat Input frequency, 64 Inspection and cleaning

ﬂat panel d Installation, 3 Installing modules, 9 Instrume

cleaning, 80

restore, 81 Interfa

ions, 5

isplay, 80

ce map, 17

Key features, 1

Linear interpolation, 36

Map

waveform display, 18 Mask testing, 55

set to a mask, 55

auto

stopping acquisition based

on, 56

Mat

editor, 52

waveform, 52

surement accuracy

Mea

optimizing, 23 Measurement bar, 17

asurement readouts, 17

Me Measurements, 44

cursor, 49

w to localize (gates), 46

turning off, 48

DSA8300 Quick Start User Manual 83

Index

Mechanical

speciﬁcations

Menu bar, 17

Normal display style, 36

Online help

Operating speciﬁcations, 4 Operating

,20

displaying control

descriptions, 20 displaying using the ﬁnder, 20

restore, 81

overviews, 20

system

Phase correction, 63, 64

quency, 64

input fre Triggered, 63 Untriggered, 63

Phase re

Power s

Print, 67 Proced

ference, 63 key points, 64 List button, 64

upply

speciﬁcations, 5

ure

to compensate the instrument

and modules, 23

alize a measurement, 46

to loc to perform acquisition

deskew, 73

form dark-level and

to per

user wavelength gain compensations, 26

rform TDR step

to pe

deskew, 76

to set acquisition modes, 34

t up the signal input, 29

to se

Readout bar, 17 Readouts display, 17 Rear panel

connectors, 15, 16 Related documentation, x Restore

instrument OS, how to, 81

Safety Summary, iii Save

setup, 67

waveform, 67 Serial mas Setup

Setup boxe Show vectors, 36 Signal

Sin(x)/x interpolation, 36 Single sequence, 34 Skew, 68

Speciﬁcations

Start an acquisition, 34 Statis

Status bar, 17 Step a Stop an acquisition, 34

k testing, 55

save, 67

s, 33

communic

adjusting, 69

environ

input connectors, 5

mechanical, 4

operat

power supply, 5

tics

histogram, 66

lignment, TDR, 28

ation, 53

mental, 4

ing, 4

TDR, 61

tep alignment, 28

TDR s Temperature compensation, 23

Tool bar, 17 Trigger

concepts, 38 event, 38 slope, 38

User interface, 17 User wavelength compensation

how to perfo

rm, 26

V Bars cursor, 49, 50 Variable Persistence, 36 Vertical

set up procedure, 29

View

main & mag

,19

Waveform

display style, 36 export,

save, 67 Waveform bar, 17 Wavefo

rm cursors, 49, 50

84 DSA8300 Quick Start User Manual

Tektronix DSA8300 Primary User

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

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 online 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

Restoring the operating system with restore media