Tektronix TDSJIT3, TDSJIT3E Reference manual

Getting Started with TDSJIT3 and TDSJIT3E

Y ou can use this side of the Quick Reference to get started taking measurements with the Jitter Analysis Measurements Application (TDSJIT3 or TDSJIT3E). The other side contains a complete menu tree for TDSJIT3 and TDSJIT3E software.

NOTE. For complete operating instructions

and General Safety information, refer to the Online Help for the application.

The TDSJIT3 and TDSJIT3E applications represent third generation jitter analysis tools from Tektronix. TDSJIT3 includes random and deterministic jitter separation (Rj/Dj) and bit error ratio estimation (BER). These applications are designed to meet general purpose testing requirements.

Requirements

H TDS5000, TDS5000B, TDS6000, TDS/CSA7000B or TDS/

CSA7000 oscilloscope

H TDSJIT3/TDSJIT3E Jitter Analysis Software

H 1 m BNC to BNC coaxial cable or voltage probe

appropriate to connect to probe compensation signal

H BNC TCA (TDS6000 and some TDS7000 models)

To set up the oscilloscope, follow these steps:

1. In the oscilloscope front panel, press the DEFAULT

SETUP button. This sets the oscilloscope into a known state for this example only.

NOTE. You do NOT need to perform step 1

before each jitter measurement.

2. Connect the BNC cable between the PROBE

COMPENSATION Signal BNC and the CH 1 BNC.

3. Press the AUTOSET button.

4. Set up the following Vertical menu controls:

H Select 50 Ω Termination

H Adjust CH 1 Scale to 100 mV

H Adjust CH 1 Offset to 900 mV

H Adjust Position to 0

5. Press the RUN/STOP button to set the oscilloscope to

the RUN mode.

6. Set up the following Horizontal menu controls:

H Adjust the Horizontal Scale to 40 ms/div

H Adjust the Record Length to 200000

An alternative method to set these Horizontal controls is through the front panel knobs, as follows:

H Turn the HORIZONTAL SCALE knob to set the value; a readout below the lower right quadrant of the graticule indicates the value

H Turn the Resolution knob to adjust the acquisition rate to 500 kS/s, 2 µs/pt

The oscilloscope displays a free running waveform, about 1.5 divisions high.

To set up the TDSJIT3 or TDSJIT3E application, follow these steps:

1. Select File> Run Application> Jitter Analysis 3 (or Jitter

Analysis 3 Essentials) in the oscilloscope menu bar.

NOTE. There will be a short delay while the

application is loading.

2. In the application menu bar, go to the Measurements>

Select menu.

3. Press the Clock Period measurement button.

NOTE. The default measurement source is

CH 1. You can select other channels and

waveform sources through the pull-down

Select Source menu.

After you select a measurement, the name of

the measurement appears in the list on the

right that shows selected measurements and

their sources. To delete a measurement, press

the select button next to the measurement

name, and press the CLEAR button.

4. Select the Measurements> Configure> Source Reference

Levels tab, and press the AUTOSET All Active Sources button.

NOTE. This sets the reference levels for all

sources defined in the measurement list. To

modify what the Autoset function uses as

midpoint, high, and low refer ence levels, press

the AUTOSET Setup button. To Autoset a

source for a single measurement, press the

appropriate button from the Select Source list,

and then press AUTOSET Selected Source.

5. Press the Go To Results button (bottom button on the

left of the screen), and select the All Statistics tab (which is the default).

6. Press the Measure Single sequence button (last one on

the right of the screen) to start the measurement process.

The oscilloscope acquires a waveform and transfers it to the application. The application performs edge detection and timing analysis, calculates statistics, and displays measurement results.

NOTE. The Results menu includes several tabs.

The All Statistics tab shows complete statistics for each measurement. To select a different measurement to display, press the selection button next to the measurement list. To select a summary of partial details of all measurements, select the Min/Max or the Mean/Std Dev tabs.

To obtain maximum accuracy use the highest sample rate available on the instrument, for example 20 GS/s on a TDS6604. Also make the vertical size of the signal at least 4 divisions; ideally between 7 and 8 divisions.

TDSJIT3 Ordering Information

This application supports the TDS5000B, TDS5000, TDS6000, TDS/CSA7000B or TDS/CSA7000 oscilloscopes; refer to the Optional Applications Software on Windows-Based Oscilloscopes Installation Manual for a list of specific models. The applications CD includes a PDF file of the installation manual.

If Option JT3 was ordered with your new TDS or CSA oscilloscope:

H TDSJIT3 is installed and enabled

To order an upgrade for an existing oscilloscope:

H Order TDS5UPB Option JT3

H Order TDS5UP Option JT3

H Order TDS6UP Option JT3

H Order TDS7BUP Option JT3

H Order TDS7UP Option JT3

H Order CSAB7UP Option JT3

H Order CSA7UP Option JT3

To order an upgrade for TDSJIT3E to TDSJIT3:

H Order TDS5BUP Option J23

H Order TDS5UP Option J23

H Order TDS6UP Option J23

H Order TDS7BUP Option J23

H Order TDS7UP Option J23

H Order CSA7BUP Option J23

H Order CSA7UP Option J23

TDSJIT3 Essentials Ordering Information

This application supports the TDS5000, TDS5000B, TDS6000, TDS/CSA7000B or TDS/CSA7000 oscilloscopes; refer to the Optional Applications Software on Windows-Based Oscilloscopes Installation Manual for a list of specific models. The applications CD includes a PDF file of the installation manual.

If Option J3E was ordered with your new TDS or CSA oscilloscope:

H TDSJIT3 Essentials is installed and enabled

To order an upgrade for an existing oscilloscope:

H Order TDS5BUP Option J3E

H Order TDS5UP Option J3E

H Order TDS6UP Option J3E

H Order TDS7BUP Option J3E

H Order TDS7UP Option J3E

H Order CSA7BUP Option J3E

H Order CSA7UP Option J3E

Recommended Accessories

AWG710 — 4.0 GS/s Arbitrary Waveform Generator

P7260 — 6.0 GHz active probe

--3 dB probe tip bandwidth with TDS6604

P7240 — 4.0 GHz active probe

--3 dB probe tip bandwidth with CSA/TDS7404

P7380SMA — 8 GHz differential adapter

P7350SMA — 5G Hz differential SMA probe

P7350 — 5G Hz differential probe

--3 dB probe tip bandwidth with TDS6604 and above

P7330 — 3.0 GHz active differential probe

--3 dB probe tip bandwidth with CSA/TDS7404

TDSJIT3 and TDSJIT3E Jitter Analysis Measurements Application Reference

www.tektronix.com

*P071107902*

071-1079-02

TDSJIT3/TDSJIT3E Menu Tree

File

Measurements

Results

Plot

Log

Utility

Help

Control Panel (Visible under Results, Plot, and Utility menus)

Default Setup

Recall...

Save . . .

Recent Files Minimize Exit

Select...

Configure . . .

Summaryof...

All Statistics

Min/Max

Mean/Std Dev

TIE : RjDj -- BER*

Create

Vert/Horiz Axis

Statistics

Measurements

Worst Case Waveforms

Deskew

Acq Timeout

Warnings

Topics . . . About TDSJIT3 . . .

Plots

Measure

OK | Cancel

File browser

Open | Cancel

File browser

Save | Cancel

List of Files to Recall

Yes No Cancel

Meas Setup Sequence

Select Source

Math Defs

Add Measurement

Clear | Clear All

Meas Setup Sequence

Meas Params

Source Autoset

Source Gate/Qualify

Source Ref Levels

Stat Pop Limit

Meas Setup Sequence

Measurements | Source Ref Levels | Miscellaneous

Measurement; Sources Statistics; Current Acq; All Acqs

All Acqs | Current Acq

Analysis Pattern Len

BER = 1E--?

Add Plot

Plots Clear | Clear All

Modify Axis

Log Statistics

Save Current Statistics

Config

File names

Config

File names

Specify Deskew Sources

User Edges

Deskew Range Perform Deskew

Summary

Acquisition Timeout

Warning History

Select View

Run/Stop Single Clear

Restore Scope Settings

Select Meas | Configure | View Summary | Go to

Clock

Data

Clk-Data

General

Math1 Math2 Math3 Math4

Clock

Data

Clock-Data

General

Select Meas | Configure | View Summary | Go to

Measurement dependent; refer to Online Help

Select Acq Source

Gate

Qualify with Logic Waveform

Select Source

Set Reference Level

Population Control

Select Meas | Configure | View Summary | Go to Results

Measurement; Sources; Population; Max; Min; Max + ∆; Max -- ∆

Measurement; Sources; Population; Mean; StdDev

On | Off

Histogram | Time Trend | Cycle Trend | Spectrum | Bathtub*

Plot dependent; refer to Online Help

Path to filename

On | Off | Delete

Path to filename

Save | Delete

Log Measurements

Save Current Measurements

Measurement; Sources; File Names

Log Worst Case Waveforms

Refer to Online Help for a list of default filenames

Reference

Target

Rise | Fall | Both

Max. Value | Min. Value

Auto User — Timeout

View | Clear

Active Plots Summary (position plots) Close << Less

New Acq Yes | N o

Results

Clock

Data

Clock Data

Main Slew/Cross

Scope User | Ch1--Ch2 | Ch3--Ch4 | Ref1--Ref2 | Ref3--Ref4

Period | Frequency | TIE | PLL TIE*

Setup | Hold | Clock--Out

Ch1 | Ch2 | Ch3 | Ch4 | Ref1 | Ref2 | Ref3 | Ref4 | Math1 | Math2 | Math3 | Math4

Results

Autoset

Off | Zoom | Cursors

Source

Active

Ch | Ref | Math

Autoset

Rise

Fall Hysteresis

Off On — Size

Tektronix TDSJIT3, TDSJIT3E Reference manual

Specifications and Main Features

Frequently Asked Questions

User Manual