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Trigger
R&S
®
RTC1000
52User Manual 1335.7352.02 ─ 04
POLARITY
Sets the polarity, alternatively to the [SLOPE] key. For positive pulses, you define the
width from rising to falling slopes, and accordingly for negative pulses from falling to
rising slopes. Consequently, the trigger always occurs on the second slope of the
pulse.
COMPARISON
Sets how the measured pulse width is compared with the given limits.
"t
i
> t"
Triggers on pulses longer than the reference time t.
"t
i
< t"
Triggers on pulses shorter than the reference time t.
"t
i
= t"
Triggers on pulses equal to the reference time t. The reference time is
a combination of time t plus the deviation.
"t
i
≠ t"
Triggers on pulses unequal to the reference time t. The reference
time is a combination of time t plus the deviation.
"t
1
< t
i
< t
2
"
Triggers on pulses shorter than the reference time t
2
and longer than
the reference time t
1
.
"Not(t
1
< t
i
<
t
2
)"
Triggers on pulses longer than the reference time t
2
and shorter than
the reference time t
1
.
5.5 Logic Trigger
Using the logic trigger (also known as pattern trigger), you can trigger on any logic
combination of active input channels. The logic trigger supports you in verifying the
operation of digital logic when MSO option R&S RTC-B1 is installed.
You can also set a time limitation to the pattern. Thus you can trigger on bus patterns
of parallel buses.
You can test all settings in the logic trigger without connecting the logic probe.
Before you set up the logic trigger, make sure that the thresholds are set correctly.
●
Analog channels: in the "Channel" > "Threshold" menu, see
"THRESHOLD menu"
on page 36.
●
Logic channels: in the "LOGIC POD" menu, see
The pattern is configured in the "SOURCE" menu. The time limitation is configured in
the "FILTER" menu.
5.5.1 Logic Pattern
In the "SOURCE" menu, you define the logic pattern. The configuration is shown in a
window.
1. Select [TYPE] > "LOGIC".
2. Press the [SOURCE] key.
Logic Trigger
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