Tektronix TDS500C, TDS600B,TDS700C Reference manual

Reference

TDS 500C, TDS 600B & TDS 700C
Digitizing Oscilloscopes

070-9861-00

To Display a Waveform:

1234

Attach a probe to CH 1
and hook the probe to your
signal.

Press
CH 1.

Press

AUTOSET.

Adjust VERTICAL and HORIZONTAL
POSITION and SCALE.

To Preview a Waveform:

1

Press ZOOM.

2

Press Mode in the main menu. Then press Preview in the side menu to turn on Dual Window Zoom.

Upper graticule zooms the boxed area

on the selected waveform.

Lower graticule displays the selected waveform

unzoomed with the zoomed area in box.

Device under test

3

Use the Selected Graticule menu to select the upper or lower waveform. Use the vertical and horizontal knobs
to adjust the waveform in the graticule you select.

To Capture Infrequent Events (TDS 500C & 700C Models):

Press InstaVu to toggle between InstaVu and Normal waveform
capture rates.

When in InstaVu mode:
H Waveforms displayed are updated thousands of times

faster than normal.

H Very brief changes in waveforms are captured.
H Certain features, such as Limit Testing, Math Waveforms, Zoom, and

record lengths longer than 500 points, are not available.

Copyright E Tektronix, Inc., 1997. Printed in U.S.A.

To Save a Hardcopy to the File System:

To Set Up Using a Menu:

12

Press SHIFT, and then press HARDCOPY.

34

Press Port in the main menu, press File in the side
menu, and then press CLEAR MENU.

Disk drive

Press Format in the main menu, and select a hardcopy
format from the side menu.

Press HARDCOPY anytime to save a copy of the current
screen to a unique file in the oscilloscope file system.

1

Press any of the front panel menu buttons.

2

Select an item from the main (bottom) menu.

3

Select an item from the side menu, if displayed.

Use SHIFT for
the alternate
(blue) menus.

The readout indicates the
value that you can adjust
with the general purpose
knob or keypad.

To Perform Other File System Operations:

H Press SA VE/RECALL WAVEFORM, and use the menu buttons to save a waveform to a file or recall it from a file.
H Press SA VE/RECALL SETUP, and use the menu buttons to save a setup to a file or recall it from a file.
H Press File Utilities in the Save/Recall Waveform, Save/Recall Setup, or Hardcopy menus to access utilities that create

directories, copy files, and do other operations in the oscilloscope file system.

4

Adjust menu item values using the general purpose
knob or by entering numbers on the keypad.

Adjustable menu item value

General purpose knob

Keypad

End your entry by
pressing ENTER ( ).

To Select a Trigger:

To Take Measurements Automatically:

1

Press TRIGGER MENU.

2

Select a trigger type or parameter from the
main menu.

This symbol

indicates a

pop-up menu

Set TRIGGER MAIN LEVEL.

3

Trigger Selections

TYPE

<Edge>

Select any one of
Ch 1 thru Ch 4,
Line, or DC Aux

Positive

Negative

Define levels High,
Low, or Don’t Care
for Ch 1 thru Ch 4

(On some models, Ax 1 & Ax 2 replace Ch 3 & Ch 4)

TYPE

<Logic>

CLASS

<Pattern>

AND

OR

NAND

NOR

CLASS

<State>

Define levels High,
Low, or Don’t Care
for Ch 1 thru Ch 3

Select edge for the
clock (always Ch 4)

AND

OR

NAND

NOR

CLASS

<Setup/Hold>

Select one of
Ch 1 thru Ch 4 as
the data source

Do not select the
same channel used
as the clock source

Select one of
Ch 1 thru Ch 4 as
the clock source

Select the clock

Clock Source

edge

Do not select the
same channel used
as the data source

12

Press MEASURE.

34

Select up to four measurements.

Press Select Measrmnt or Snapshot in the main menu.

Press CLEAR MENU to move the measurement
readouts away from the graticule.

“T” shows the

trigger position

Press to display the pop-up menus
Press again to make a selection
A pop-up selection changes the other main

menu items

Arrow shows

the trigger level

Title of the
side menu

Removes the

menus from

the screen

Level

Level Slope Source

Set level or select
preset level based
on TTL or ECL logic

DC

Coupling

AC

HF
Reject

LF
Reject

Noise Rej (DC
Low Sensitivity)

Set a threshold
level for each of
Ch 1 thru Ch 4

Set Thresholds Define Logic Define InputsTrigger When

Goes TRUE

Goes FALSE

TRUE for
less than

TRUE for
more than

1

Qualification by time

Set a threshold
level for each of
the pattern
channels, Ch 1
thru Ch 3, and
the clock, Ch 4.

Goes TRUE

Trigger When Set Thresholds Define Logic Define Inputs

Goes FALSE

1

1

Clock

Levels Data SourceSetup/Hold Times

Data

Set levels or select
preset levels based
on TTL or ECL logic

Select and set the
Setup Time

Select and set the
Hold Time

Automated Measurement Selections

Period

Frequency

Positive

Width

Negative

Width

—more—

1 of 8

Rise Time

Fall Time

Positive

Duty Cycle

Negative

Duty Cycle

—more—

2 of 8

Delay

Phase

Burst Width

—more—

3 of 8

High

Low

Max

Min

—more—

4 of 8

Select

Measurement

Pk–Pk

Amplitude

Positive

Overshoot

Negative

Overshoot

—more—

5 of 8

Mean

Cycle Mean

RMS

Cycle RMS

—more—

6 of 8

Area

Cycle Area

—more—

7 of 8

Extinction

Ratio

Extinction %

(FDDI)

Extinction dB

(SONET)

Mean dBm

(Average

Optical

Power)

—more—

8 of 8

To Display Help On Screen:

1

Press HELP.

2

To Take Measurements With Cursors:

Now turn any knob or press any button and read a
description of it on the display . Press HELP again to
exit help.

CLASS

<Glitch>

Select any one of
Ch 1 thru Ch 4

Source

Positive

Negative

Polarity & Width

Either

Width

CLASS
<Runt>

Select any one of
Ch 1 thru Ch 4

SourceTrigger When

Positive

Polarity

Negative

Either

TYPE

<Pulse>

CLASS

<Width>

Select any one of
Ch 1 thru Ch 4

Positive

Polarity Source

Negative

CLASS

<Slew Rate>

Select any one of
Ch 1 thru Ch 4

SourceTrigger When

Positive

Polarity

Negative

Either

CLASS

<Time Out>

Select any one of
Ch 1 thru Ch 4

Stays
High

Polarity

Stays
Low

Either

TYPE

<Video>

(Optional)

Select any one of
Ch 1 thru Ch 4

Source

Negative Sync

Positive Sync

Sync Polarity

TYPE

<Comm>

(Optional)

Select any one of
Ch 1 thru Ch 4

Source

AMI

CMI

NRZ

Press CURSOR. Press Function in the main menu.

12

Move the cursor with the general purpose knob. Press

Select from the side menu.

3

4

SELECT to switch between the cursors. Press SHIFT

to speed up/slow down the cursor movement.

Measures voltage
Measures time
Measures voltage at time

Level Level

Set level or select
preset level based
on TTL or ECL logic

Accept

OFF

Glitch

ON

Reject
Glitch

Glitch (Filter) Level

Runt
Upper

Thresholds

Runt
Lower

Set levels or select
preset levels based
on TTL or ECL logic

Select trigger
when any runt
occurs or ...

Select triggering
when a runt wid­er than specified

2

occurs

2

Qualification by width

Set level or select
preset level based
on TTL or ECL logic

Within
Limits

Out of

Trigger When Level

Limits

Set Lower and
Upper Limits

High

Thresholds

Low

Set levels or select
preset levels based
on TTL or ECL logic

Faster

Slower

Delta
Time

Select faster than
or slower than and
set delta time

The oscilloscope
computes the slew
rate readout from
the delta time and
thresholds settings

Level

Level SourceTime

Set level or select
preset level based
on TTL or ECL logic

Select and set
the Timeout Time

Set video field
and line number

NTSC

Standard Field/Line

PAL

HDTV

FlexFmt

Level

High

Low

Set level or select
preset levels

DS<x>
E<x>

Standard Level/Threshold Code

FC<x>
OC<x>
STS-<x>
STM<x>
FDDI
4:2:2
4fsc NTSC
Custom

To Choose an Acquisition Mode:

How the Acquisition Modes Work:

1

Press SHIFT, and then press ACQUIRE MENU.

Press Mode in the main menu.

2

Incoming

signal

Samples acquired for

each waveform data

point interval

Acquisition mode

processes samples

Sample

Uses first sample in interval

Displayed
data point

Waveform

drawn on CRT

Use for fastest acquisition rate.
Sample is the default mode.

Use to reveal aliasing and for
glitch detection.

3

From the side menu, select an acquisition mode that will
serve your application.

Single

waveform

acquisition

Multiple

waveform

acquisitions

Peak Detect

Uses highest and lowest

samples in interval

Not Available on TDS 600B

Hi Res

Calculates average of

samples in interval

Envelope

Uses highest and lowest

samples over many acquisitions

Average

Peak Detect provides the
benefits of enveloping with
speed of single acquisition.

Use to reduce apparent noise.
Hi Res provides the benefits of

averaging with the speed of
single acquisition.

Use to reveal the noise band
around the signal.

Use to reduce apparent noise in
a repetitive signal.

Calculates average value

over many acquisitions