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Warranted Characteristics
TDS 520A, 524A, 540A, & 544A Performance Verification
Table 2-10: Warranted Characteristics — Triggering System
Name
Description
Accuracy (Time) for Pulse-Glitch or
Pulse-Width Triggering
Time Range
2 ns to 1 s
1.02 s to 1 s
Accuracy
ns)
setting)
Sensitivity, Edge-Type Trigger, DC
Coupled
1
Trigger Source
TDS 540A,
544A
(CH1 – CH4)
TDS 520A,
524A
(CH1, CH2)
TDS 520A,
524A
(AUX1, AUX2)
Auxiliary
(TDS 540A,
544A only)
Sensitivity
0.35 division from DC to 50 MHz, increasing to
1 division at 500 MHz
0.55 division from DC to 50 MHz, increasing to
1.5 division at 500 MHz
0.25 volts from DC to 50 MHz
Width, Minimum Pulse and Rearm,
for Pulse Triggering
Pulse Class
Glitch
Runt
Width
Minimum
Pulse Width
2 ns
2.5 ns
2 ns
Minimum Rearm Width
2 ns + 5% of Glitch Width Setting
2.5 ns
2 ns + 5% of Width Upper Limit
Setting
Jitter (Option 05 Video Trigger) 17 ns
p-p
on HDTV signal; 60 ns
p-p
on NTSC or PAL signal
Input Signal Sync Amplitude for
Stable Triggering (Option 05 Video
Trigger)
0.6 division to 4 division (1 division to 4 divisions in Numerical Field)
1
The minimum sensitivity for obtaining a stable trigger. A stable trigger results in a uniform, regular display triggered on the selected
slope. The trigger point must not switch between opposite slopes on the waveform, and the display must not “roll” across the
screen on successive acquisitions. The TRIG’D LED stays constantly lighted when the SEC/DIV setting is 2 ms or faster but may
flash when the SEC/DIV setting is 10 ms or slower.