Tektronix CSA7154, Руководство пользователя, Страница: 174 / 480

Triggering
3- 96
CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual
When you select the type Runt, the instrument will trigger on a short pulse that
crosses one threshold but fails to cross a second threshold before recrossing the
first. To set up for runt triggering, do the following procedures.
Overview To trigger on a runt pulse Control elements and resources
Select runt
triggering
1. From the toolbar, touch Trig and select the A Event tab
of the Trigger control window.
2. Touch Runt.
Select the
source
3. To specify which channel becomes the pulse trigger
source, touch Source, and select the source from the
list.
The source selected becomes the trigger source for
Glitch, Runt, Width, and Transition.
Select the
polarity
4. To specify the direction of the runt pulse, touch Polarity,
and select Pos (positive), Neg (negative) or Either from
the window.
H
Pos looks at positive-going pulses.
H
Neg looks at negative-going pulses.
H
Either looks at both positive and negative pulses.
To Trigger on a Runt Pulse