Table 2-17: Typical Characteristics - Triggering System - Tektronix TDS 700D Technical Reference

Typical Characteristics
Table 2–16: Typical characteristics — Signal acquisition system (cont.)
Name
Step Response Settling Errors
Step Response Settling Errors
TDS 794D D D
1
The limits given are for the ambient temperature range of 0 C to +30 C. Reduce the upper bandwidth frequencies by
5 MHz for the TDS 600B or by 2.5 MHz for the TDS 500D/700D for each C above +30 C.
2
The numbers given are valid 0 C to +30 C and will increase as the temperature increases due to the degradation in
bandwidth. Rise time is calculated from the bandwidth. It is defined by the following formula:
TDS 600B Rise Time (ns)
Note that if you measure rise time, you must take into account the rise time of the test equipment (signal source, etc.) that
you use to provide the test signal. That is, the measured rise time (RT
the rise time of the test signal source (RTgen) according to the following formula:
2 2
RT RT
m
i
3
The values given are the maximum absolute difference between the value at the end of a specified time interval after the
midlevel crossing of the step and the value one second after the midlevel crossing of the step, expressed as a percentage
of the step amplitude.
Table 2–17: Typical characteristics — Triggering system
Name
Accuracy, Trigger Level or Threshold, DC
Coupled ple
(for signals having rise and fall times
20 ns)
Input, Auxiliary Trigger
Trigger Position Error,
Edge Triggering E ge igge i g
Holdoff, Variable, Main Trigger
2–30
Description
Volts/Div setting l iv e i
1 mV/div – 100 mV/div
101 mV/div – 1 V/div
1.01 V/div – 10 V/div
10 mV/div – 100 mV/div
101 mV/div – 1 V/div
450
BW (MHz)
2
RT
gen
Description
Trigger source
Any Channel
Auxiliary
The input resistance is
20 V (DC + peak AC).
Acquisition mode
Sample, Average
Envelope
For all Time/Division ranges, the minimum holdoff is 250 ns and the maximum holdoff is 12
seconds. The minimum resolution is 8 ns for settings 1.2 s.
TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications
Step amplitude S ep ampli
2 V
20 V
200 V
1.5 V
3 V
TDS 500D 700D Rise Time (ns)
) is determined by the instrument rise time (RT
m
Accuracy
((2% | Setting – Net Offset |)
+ (0.3 div Volts/div Setting ) + Offset
Accuracy)
Not calibrated or specified
1.5 k
; the maximum safe input voltage is
Trigger-position error
(1 Waveform Interval + 1 ns)
(2 Waveform Intervals + 1 ns)
3
Settling error (%) at
e 20 ns 100 ns 20 ms
0.5% 0.2% 0.1%
1.0% 0.5% 0.2%
1.0% 0.5% 0.2%
0.5% 0.2% 0.1%
1.0% 0.5% 0.2%
400
BW (MHz)
) and
i
1,2