Waveform Timing; Figure 2-15: Trigger Input, Sync Output, And Waveform Timing - Sony Tektronix VX4792 User Manual

Functional Overview
Polarity (Gated Mode)
Level
Impedance

Waveform Timing

Trigger Input
(Slope : Positive)
Sync Output (Start)
Waveform Output
2-16
The TRIGger:POLarity command (page 3–77) sets the polarity for the gate that
outputs the waveform or sequence with an external gate signal. Polarity may be
set to either positive or negative. When positive is selected, the waveform or
sequence is output while the level of the gate signal is higher than the gate
(trigger) level. When negative is selected, the waveform or sequence is output
while the level of the gate signal is lower than the set gate level.
The TRIGger:LEVel command (page 3–76) sets the trigger (gate) level for an
external trigger (gate) signal. The trigger (gate) level can be set in the range
–5.0 V to +5.0 V in steps of 0.1 V.
The TRIGger:IMPedance command (page 3–74) sets the external trigger (gate)
source input impedance to either 50 W or 1 MW.
Figure 2–15 shows the timing relationship between the TRIGGER INPUT
signal, the SYNC OUTPUT signal, and the output waveform. Maximum delay
times are shown. Typical Sync Signal Delay is 10 ns; typical Trigger Signal
Delay is 50 ns.
The delay time increases when filters are used. See Table 2–3 on page 2–15 for
details.
100 ns max
15 ns max
(This delay changes if a
filter is inserted.)

Figure 2-15: Trigger Input, Sync Output, and Waveform Timing

VX4792 User Manual