Tektronix CSA7404B, User Manual

Page: 352 / 438

Appendix A: Specifications
A- 18
CSA7000B Series & TDS7000B Series Instruments User Manual
Table A- 4: Trigger specifications (Cont.)
Characteristic Description
n
Time-qualified trigger timer accuracy For Glitch, Timeout, or Width types
Time range Accuracy
340 ps to 1.5 s
(360 ps to 1.8 ns typical)
±
5% of setting
1.5 s to 1 s
±
91 ns
Trigger level or threshold range Trigger Source Sensitivity
Any channel
±
12 divisions from center of screen
Auxiliary input
±
5 V
Line
±
0 V, not settable
Trigger level or threshold accuracy, typical Edge trigger, DC coupling, for signals having rise and fall times
≤
1 ns
Trigger Source Accuracy
Any channel
±
[(2%
×
| setting -- net offset | ) +
(0.35 div
×
volts/div setting) + offset
accuracy] (
≥
10 mV/div only)
Auxiliary Not specified
where, net offset = offset -- ( position
×
volts/division )
B Event (Delayed) trigger Trigger After Time Trigger on n
th
Event
Range Delay time = 5 ns to 250 s Event count = 1 to 10
7
Minimum pulse width, typical — 250 ps
Minimum time between events, typical — 1 ns
Trigger position error, typical Edge trigger, DC coupling, for signals having a slew rate at the trigger point of
≥
0.5
division/ns
Acquisition mode Error
Sample, Average
±
(1 waveform in 200 ps)
Peak Detect, Envelope
±
(2 waveform in 200 ps)
Trigger holdoff range 250 ns to 12 s plus random holdoff, if enabled.
Minimum resolution is 8 ns for settings
≤
1.2 s. A dither of 800 ps is added to the
holdoff setting