Reference
TLS 216
Logic Scope
070-8833-00
To Set Up Using a Menu: To Save a Hardcopy to the File System:
Press any of the front panel menu buttons.
1
Readout Indicates Value That
You Can Adjust with the
General Purpose Knob or
Keypad
Adjustable Menu Item
Value
Use SHIFT
Button for
Alternate (Blue)
Menus
2
Select an item from the main (bottom) menu.
General Purpose
Knob
Keypad
Use SHIFT Button for
Alternate (Blue) Values
End Your Entry by Pressing
ENTER ( )
Disk Drive
Press Format in the main menu, and select a
12
Press SHIFT, and then press HARDCOPY.
Hardcopy Format from the side menu.
Adjust menu item values using the general
purpose knob or by entering numbers on the
34
Select an item from the side menu, if displayed.
keypad.
To Display Help On Screen:
Now turn any knob or press any button and
read a description of it on the display.
12
Press HELP button.
Press HELP button again to exit help.
Press HARDCOPY anytime to save a copy of
Press Port in the main menu, press File in the
side menu, and then press CLEAR MENU.
34
the current screen to a unique file in the logic
scope file system.
To Perform Other File System Operations:
H Press SAVE/RECALL WAVEFORM, and use the menu buttons to save a waveform to a file or
recall it from a file.
H Press SAVE/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 logic scope file system.
Copyright E Tektronix, Inc., 1993. Printed in U.S.A. First Printing: September 1993
To Take Measurements Automatically: To Probe Your Digital Circuit:
Press Select Measrmnt or Snapshot
12
Press MEASURE button.
Automated Measurement Selections
in main menu.
Select
Measurement
Select up to four
3
measurements.
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
Pk–Pk
Amplitude
Positive
Overshoot
Negative
Overshoot
—more—
5 of 8
Mean
Cycle Mean
RMS
Cycle RMS
—more—
6 of 8
Area
Cycle Area
Setup
Hold
—more—
7 of 8
Skew
To
1 of 8
T o Select a Signal for Measurement:
H Press a Group selection buttons (GROUP 1,
GROUP 2, and so on) to select the group.
H Use the Group menu to access the Group
Definition and select the channel.
Attach a probe to each of up to 16 contiguous channel inputs that you want to include in a waveform
1
group (a group of eight is shown).
Press CLEAR MENU button to move
4
measurement readouts away from graticule.
H Select a measurement. It will be taken on the
selected channel in the selected group.
Form other groups as needed from any unused contiguous channels using the same process as above.
2
To Choose an Acquisition Mode:
From side menu, select an
Press SHIFT, then press
12 3
ACQUIRE MENU.
Press Mode in main menu.
acquisition mode that will
serve your application.
How the Acquisition Modes Work:
To Choose a Display Mode:
1
Press GROUP MENU and select Display.
Press Analog to display a group of signals as
2
overlapping waveforms using their actual waveshape.
Press Analog again to toggle between ALL, which
displays all the signals belong to the group, or Select,
which displays only the signal selected in the Group
3
Definition menu.
Use Analog mode to display the actual response
of your digital waveforms.
Incoming
Signal
Single Waveform
Acquisition
Samples Acquired
for Each Waveform
Data Point Interval
Samples over Many Acquisitions
Acquisition Mode
Processes
Samples
Sample
Uses First Sample
in Interval
Envelope
Uses the Highest and Lowest
Displayed
Data Point
Waveform
Drawn on
CRT
Use for fastest acquisition rate.
This is the default mode.
Use to reveal the noise band
around the signal.
Press BusForm to display the group of signals as
a single bus of HIGH, LOW, and Median logic
values.
4
The bus logic levels, or “bus states,” show how the
input group compares against predefined logic levels.
Use BusForm mode to help you to quickly locate
areas of non-ideal digital response.
Press Timing Diagram to display the group of
5
signals as individual waveforms (using logic values).
Press Height in Divs and use the general purpose
knob or keypad to set the number of vertical
divisions between HIGH and LOW logic levels.
6
Multiple Waveform
Acquisitions
Average
Calculates Average Value
over Many Acquisitions
Use to reduce apparent noise in
a repetitive signal.
Use Timing Diagram mode to measure time
relationships between edges on digital waveforms.
To Display a W aveform Group: To Take Measurements With Cursors:
1
Press GROUP 1, and then press GROUP MENU.
Press Group Definition. Then press First Channel
and use the keypad to enter the lowest numbered
channel in GROUP 1.
2
12
Press CURSOR button. Press Function in main menu.
Keypad
Press Last Channel and use the keypad to enter the
highest numbered channel in GROUP 1 (all channels
from first to last must not belong to any other group).
3
Press Selected Channel and use the keypad to
choose one of the channels in the group as the
selected channel. (The logic scope can display the
selected channel alone in Analog mode and is used
for taking automated measurements.)
4
The group readout, GRP 1 [3 : 1], lists the group
number and the channels in the group in this format:
Group Number [Last Channel : First Channel].
5
Repeat the above steps to define additional groups
as desired. Up to eight groups can be defined.
6
7
Press AUTOSET.
Measures Voltage
Measures Time
and Binary Value
Measures Voltage
and Time
Move cursor with general purpose knob.
34
Select from side menu.
Press SELECT to switch between cursors.
To Speed Up Knob Adjustments:
Adjust VERTICAL and HORIZONTAL
8
POSITION and SCALE as desired.
Press the SHIFT button to change the rate of the
VERTICAL and HORIZONTAL POSITION
knobs, and the general purpose knob.
To Select a Trigger:
Trigger Selections
This Symbol
Indicates
Pop-Up
Menu
Press TRIGGER MENU button.
12
Select trigger type or parameter from main menu.
TYPE
<Edge>
CLASS
<Glitch>
< Time
> Time
Trig When
Time
Out
Set Glitch
Width
TYPE
<Pulse>
Trig When
CLASS
<Width>
Within
Limits
Out of
Limits
Set Lower and
Upper Limits
TYPE
<Pattern>
< Time
> Time
Limit
Time
Out
Set a Time
Limit
In
Trig When
Range
Out
of
Range
Range
TYPE
<State>
Select any one of
Ch 1 thru Ch 16
Clock
Define polarity and
threshold of clock
TYPE
<Sequence>
< Time
> Time
Limit
Time
Out
Set a Time
Limit
Within
Trig When
Range
Out
of
Range
Range
Set TRIGGER THRESHOLD.
3
(Edge or Pulse trigger only.)
“T” Shows
Trigger Position
Press to
Display Pop-Ups
Press Again to
Make Selection
A Pop-Up Selection
Changes the Other
Main Menu Items
Title of
Side Menu
Arrow Shows
Trigger Level
Removes
Menus From
Screen
Select any one of
Ch 1 thru Ch 16
or Aux input
Source
Positive
Slope
Negative
Set level or select
a preset threshold
based on TTL,
+ECL, –ECL, or
CMOS logic
Threshold
Select any one of
Ch 1 thru Ch 16
or Aux input
Source
Positive
Polarity
Negative
Set level or select
a preset threshold
based on TTL,
+ECL, –ECL, or
CMOS logic
Threshold
Select any one of
Ch 1 thru Ch 16
or Aux input
Source
Positive
Polarity
Negative
Set level or select
a preset threshold
based on TTL,
+ECL, –ECL, or
CMOS logic
Threshold
Set Lower and
Upper Limits
Define levels High,
Low, or Don’t Care
for Ch 1 thru Ch 16
and Aux input
Define Pattern
AND
Logic
OR
NAND
NOR
Set a threshold
level for each Ch
in pattern
Set Thresholds
Define levels High,
Low, or Don’t Care
for Ch 1 thru Ch 16
and Aux input
Define Pattern
AND
Logic
OR
NAND
NOR
Set a threshold
level for each Ch
in pattern
Set Thresholds
Set Lower and
Upper Limits
Define levels High,
Low, or Don’t Care
for Ch 1 thru Ch 16
and Aux input for
Start and End
Define Pattern
Patterns
AND
Logic
OR
NAND
NOR
Set a threshold
level for each Ch
in both the Start
and End patterns
Set Thresholds
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