Tektronix TDS 510A, Instruction Manual, Page: 115 / 116

Typical Characteristics
TDS 510A Performance Verification and Specifications
2–17
Table 2–15: Typical Characteristics — Triggering System
Name Description
Trigger Source
Any Channel
Auxiliary
Input, Auxiliary Trigger
The input resistance is
w
1.5 k
W
; the maximum safe input voltage is
±
20 V (DC + peak
AC).
Trigger Position Error, Edge Triggering Acquire Mode
Sample, Hi-Res, Average
Peak Detect, Envelope
Trigger-Position Error
1,2
±
(1 WI + 1 ns)
±
(2 WI + 1 ns)
Holdoff, Variable, Main Trigger
Minimum: For any horizontal scale setting, the minimum holdoff is 10 times that setting,
but is never less than 1
m
s or longer than 5 s.
Maximum: For any horizontal scale setting, the maximum holdoff is at least 2 times the
minimum holdoff for that setting, but is never more than 10 times the minimum holdoff for
that setting.
Width, Minimum Pulse and Rearm, for
Logic Triggering or Events Delay
3
5 ns
Lowest Frequency for Successful Operation
of “Set Level to 50%” Function 30 Hz
Sensitivity, Edge Trigger, Not DC Coupled
4
Trigger Coupling
AC
Noise Reject
High Frequency Reject
Low Frequency Reject
Typical Signal Level for Stable Triggering
Same as DC-coupled limits
4
for frequencies above
60 Hz. Attenuates signals below 60 Hz.
Three and one half times the DC-coupled limits.
5
One and one half times the DC-coupled limits
5
from
DC to 30 kHz. Attenuates signals above 30 kHz.
One and one half times the DC-coupled limits
5
for
frequencies above 80 kHz. Attenuates signals below
80 kHz.
Sensitivities, Logic-Type Trigger/Events
Delay, DC Coupled
6
1.0 division, from DC to 100 MHz with a minimum slew rate of 25 divisions/
m
s at the
trigger level or the threshold crossing.
Sensitivities, Pulse-Type Runt Trigger
6
1.0 division, from DC to 200 MHz with a minimum slew rate of 25 divisions/
m
s at the
trigger level or the threshold crossing.
Sensitivities, Pulse-Type Trigger Width and
Glitch
6
1.0 division with a minimum slew rate of 25 div/
m
s at the trigger level or the threshold
crossing. For <5
m
s pulse width or rearm time, 2 divisions are required.
Sync Width (Option 05 Video Trigger) min. 400 ns for HDTV signals
Sync Duty Cycle
(Option 05 Video Trigger) min. 50 to 1