Tektronix TDS2000C series Manual de usuario

Troubleshooting Your Design

with the TDS2000C Series Oscilloscopes

Troubleshooting Your Design with the TDS2000C Series Oscilloscope .................... 4

Getting Started ....................................................................................................... 5

Capture Elusive Glitches and Anomalies .............................................................. 6-7

Debug Digital Timing Problems ............................................................................... 8

Verify Timing Relationships ..................................................................................... 9

Check Signal Integrity ...................................................................................... 10-11

Debugging Digital System Lock-up ....................................................................... 12

Test for Presence of Video Signals ........................................................................ 13

Look for Unintentional Circuit Noise ................................................................. 14-15

Power Line Harmonic Analysis ......................................................................... 16-17

Automatically Capture and Save Elusive Waveform Anomalies .............................. 18

Make a Quick Pass/Fail Test of Your Device .......................................................... 19

Documenting Your Results with OpenChoice® Software ....................................... 20

Waveform Measurements Logging ....................................................................... 21

Waveform Analysis using NI SignalExpress™ Tektronix Edition ............................... 22

Table of Contents

TDS2000C Series Oscilloscope www.tektronix.com/tds2000 4

Today’s engineers and technicians face increasingly complex and

critical troubleshooting tasks. New digital designs often challenge

designers with new problems to ﬁnd: race conditions, transients,

signal aberrations, bus contention problems, etc. And, of course,

competitive time-to-market pressures dictate that troubleshooting

must be completed quickly and accurately.

The TDS2000C Series delivers the performance, affordability and

portability that enable engineers and technicians to tackle these

challenges – quickly and easily. More than just a matter of basic

bandwidth, these oscilloscopes enable users to solve problems

quickly, helping them to establish that a problem exists, allowing

them to capture the problem accurately, and enabling them to

analyze it to determine the root cause.

Troubleshooting Your Design with the TDS2000C Series Oscilloscope

The tips on the following pages are designed to further simplify

your troubleshooting tasks. But if you need more help, there is

plenty available. Simply contact your local Tektronix representative,

authorized distributor, or visit www.tektronix.com/oscilloscopes

50, 70, 100, and 200 MHz models

Up to 2 GS/s sample rate on all channels

Active TFT Color Display for easy viewing at a distance, at an

angle, or under dim lighting conditions

Built-in USB host and device ports standard

Easy documentation and analysis with PC connectivity software

Lifetime warranty*

* Limitations apply. For terms and conditions, visit

www.tektronix.com/lifetimewarranty

TDS2000C Series Oscilloscope www.tektronix.com/tds2000 5

Getting Started

To optimize your troubleshooting task at hand, it is important to start

at the beginning – with proper probe compensation and attenuation,

default setup, and automatic instrument setup.

To properly compensate and attenuate your probe,

follow these simple steps:

1. Connect the probe to channel 1.

2. Attach the probe tip and reference lead to the PROBE COMP

connectors. If using the probe hook-tip, ensure a proper

connection by ﬁrmly twisting the tip onto the probe.

3. Push PROBE CHECK.

4. The oscilloscope will automatically check the probe attenuation

and check the shape of the displayed waveform to determine if

your probe is compensated correctly.

5. If necessary, it will instruct you to adjust your probe compensation.

To ensure that you begin with factory initialization

settings, follow these simple steps:

1. Press the front panel DEFAULT SETUP button.

2. Press the front panel AUTOSET button.

PROBE COMP AUTOSET

button

CH 1

Overcompensated

Undercompensated

Compensated Correctly

TPP Series

TDS2000C Series Oscilloscope www.tektronix.com/tds2000 6

Capture Elusive Glitches

In today’s high-speed digital designs, elusive glitches and random

anomalies can cause circuits to fail. While ﬁnding these glitches has

never been easy, the TDS2000C Series simpliﬁes this task with its

peak detect feature. Peak detect can capture narrow glitches, even

on low-frequency signals.

To use the Peak Detect feature:

1. Display the waveform on the screen.

2. Press the ACQUIRE front panel menu button.

3. Press the Peak Detect menu button.

4. Notice that the oscilloscope captures several very narrow glitches,

even at slow sweep speeds. Without peak detect, you would not

have seen many of these glitches.

TDS2000C Series Oscilloscope www.tektronix.com/tds2000 7

Capture Elusive Glitches (continued)

Intermittent signal anomalies can also be a challenge to see. The

TDS2000C Series provides variable- and inﬁnite-persistence display

capabilities to provide you with information about the signal

variations over time, making it easier to understand the

characteristics of the transients you’ve captured.

To use Display Persistence:

1. Display the waveform on the screen.

2. Press the DISPLAY front panel menu button.

3. Press the Persist menu button until the desired amount of

persistence is selected.

4. Notice that the most recent signal is highlighted in the display.

By monitoring the screen updates, you can judge the relative

frequency-of-occurrence of the signal anomalies.

TDS2000C Series Oscilloscope www.tektronix.com/tds2000 8

Debug Digital Timing Problems

Digital designers need to quickly ﬁnd and analyze a wide range of

circuit timing problems. For example, race conditions and transients

can cause circuits to perform inaccurately. The TDS2000C Series’

pulse width trigger can help troubleshoot such situations by

triggering when a signal pulse width is less than, greater than,

equal to or not equal to a speciﬁed pulse width.

To use the pulse width trigger:

1. Press the TRIG MENU front panel button.

2. In the side menu, press Type until Pulse is selected.

3. Press the When side menu button until < is selected.

4. Use the multipurpose knob to set the desired minimum

pulse width.

5. Select, as desired, Source, Polarity, Mode, and Coupling.

TDS2000C Series Oscilloscope www.tektronix.com/tds2000 9

Verify Timing Relationships

Electronics engineers often need to verify that their circuits

are working as designed. One of the most common types of

oscilloscope measurements is timing measurements, such as pulse

width, period, and frequency. The TDS2000C Series’ cursors can be

used to make such measurements quickly and easily.

To make timing measurements using cursors:

1. Press the CURSOR button.

2. Press the Type menu button until the Time cursor type is

selected.

3. Press the Cursor 1 menu button.

4. To measure the timing relationship between two signals, place

cursor 1 on the ﬁrst edge of interest, using the multipurpose knob.

5. Press the Cursor 2 button and place cursor 2 on the second

edge of interest, at approximately the same Voltage.

6. The cursor readouts indicate the timing of the cursors relative

to the trigger point. In this example, the Δt readout indicates

the period of the waveform, and the 1/Δt is the frequency of

the signal.

TDS2000C Series Oscilloscope www.tektronix.com/tds2000 10

Check Signal Integrity

Electronics engineers may discover that a wide array of unintentional

electrical events will make a difference in how circuits function in the

real world. To characterize these events, engineers can measure

criteria such as overshoot, ringing, ground bounce, cross talk, and

other signal integrity issues. The TDS2000C Series’ cursors can be

used to make such measurements.

To make signal integrity measurements

using cursors:

1. Press the CURSOR button.

2. Press the Type menu button until the Amplitude cursor type is

selected.

3. Press the Cursor 1 menu button.

4. To measure the peak ringing below ground, place cursor 1 at 0

Volts, using the multipurpose knob.

5. Press the Cursor 2 menu button and place cursor 2 on the

negative peak, using the multipurpose knob.

6. View the absolute Voltage measurements on the cursor readouts

at the side of the display. The Δ readout indicates the difference

between the cursor positions.

Otros manuales para TDS2000C series

Tabla de contenidos

Otros manuales de Equipo de prueba de Tektronix

Tektronix

Tektronix DPO7000 Series Manual

Tektronix

Tektronix 2213 Instrucciones de montaje

Tektronix

Tektronix TDS200 Series Manual de operación y mantenimiento

Tektronix

Tektronix MDO3000 Series Manual de usuario

Tektronix

Tektronix TBS2000B Series Manual de usuario

Tektronix

Tektronix 547 Manual de usuario

Tektronix

Tektronix 2402A Manual de usuario

Tektronix

Tektronix 535A Manual de servicio

Tektronix

Tektronix 2212 Manual de usuario

Tektronix

Tektronix TDS2000C series Manual de usuario

Tektronix

Tektronix 2445 Manual de usuario

Tektronix

Tektronix MTS400 Series Manual de usuario

Tektronix

Tektronix 511A Manual de usuario

Tektronix

Tektronix TDS 520A Manual de usuario

Tektronix

Tektronix TDS 600B Manual de instalación y operación

Tektronix

Tektronix 551 Dual Beam Manual de usuario

Tektronix

Tektronix 1A2 Manual de usuario

Tektronix

Tektronix 3 Series Guía de referencia

Tektronix

Tektronix 5110 Manual de usuario

Tektronix

Tektronix 545A Manual de usuario

Tektronix

Tektronix TBS2000B Series Manual de usuario

Tektronix

Tektronix MSO4000B Series Manual de uso y cuidado

Tektronix

Tektronix KEITHLEY 8009 Manual de usuario

Tektronix

Tektronix TLA Series Manual de usuario

Manuales populares de Equipo de prueba de otras marcas

SMART

SMART KANAAD SBT XTREME 3G Series Manual de usuario

Agilent Technologies

Agilent Technologies BERT Serial Manual de usuario

Agilent Technologies

Agilent Technologies N3280A Manual de usuario

Vernier

Vernier Go Direct Voltage Manual de usuario

Lifeloc

Lifeloc R.A.D.A.R. Manual de usuario

Fluke

Fluke T5-600 Instrucciones de funcionamiento e instalación

Mercury

Mercury TSL01 Manual de usuario

MAHA

MAHA MBT Series Manual de usuario

Fuji Electric

Fuji Electric P-61 Manual de usuario

ETC

ETC SealerAtor Manual de usuario

Skyfine

Skyfine ETHYWAY V2 Manual de usuario

Appion

Appion G5 Twin Manual de usuario

PCB Piezotronics

PCB Piezotronics 8159-0112A Manual de usuario

BW Technologies

BW Technologies MicroDock II Manual de usuario

Sun Nuclear

Sun Nuclear 1027 Manual de usuario

Biomark

Biomark HPR LITE READER Manual de usuario

Hioki

Hioki 3169-20 Manual de usuario

Ashcroft

Ashcroft ATE-100 Manual de usuario