Tektronix TDS 500C, Performance Verification Manual

Page: 144 / 148

Typical Characteristics
2–28
TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications
Table 2–17: Typical characteristics — Triggering system
Name Description
Accuracy, Trigger Level or Threshold, DC
ple
Trigger source Accuracy
Coupled
(for signals having rise and fall times
≥
20 ns)
Any Channel
Auxiliary
±
((2%
×
| Setting – Net Offset |)
+ (0.3 div
×
Volts/div Setting ) + Offset
Accuracy)
Not calibrated or specified
Input, Auxiliary Trigger
The input resistance is
≥
1.5 k
W
; the maximum safe input voltage is
±
20 V (DC + peak AC).
Trigger Position Error,
E ge
igge i g
Acquisition mode Trigger-position error
1,2
Edge Triggering
Sample, Average
Envelope
±
(1 Waveform Interval + 1 ns)
±
(2 Waveform Int 1 ns)
Holdoff, Variable, Main Trigger
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
m
s.
Lowest Frequency for Successful Operation
of “Set Level to 50%” Function 30 Hz
Sensitivity, Edge Trigger, Not DC Coupled
3
Trigger source
Typical signal level for stable
triggering
AC
Noise Reject
High Frequency Reject
Low Frequency Reject
Same as the DC-coupled limits for frequen-
cies above 60 Hz. Attenuates signals below
60 Hz.
Three times the DC-coupled limits.
One and one-half times the DC-coupled
limits from DC to 30 kHz. Attenuates signals
above 30 kHz.
One and one-half times the DC-coupled
limits for frequencies above 80 kHz.
Attenuates signals below 80 kHz.
Sensitivities, Logic Trigger and Events
Delay, DC Coupled
4
1.0 division, from DC to 500 MHz, at vertical settings
>
10 mV/div and
≤
1 V/div at the
BNC input
Sensitivities, Pulse-Type Runt Trigger
5
1.0 division, from DC to 500 MHz, at vertical settings
>
10 mV/div and
≤
1 V/div at the
BNC input
Sensitivities, Pulse-Type Trigger Width and
Glitch
6
1.0 division, at vertical settings
>
10 mV/div and
≤
1 V/div at the BNC input
Width, Minimum Pulse and Rearm, for Logic
Triggering or Events Delay For vertical settings
>
10 mV/div and
≤
1 V/div at the BNC input
Triggering type
Minimum pulse
width Minimum re-arm
width Minimum time
between channels
7
Logic Not Applicable 1 ns 1 ns
Events Delay 1 ns (for or
– pulse widths) Not Applicable 2 ns