YOKOGAWA DL850 ScopeCorder - 5.2 Trigger Output (TRIGGER OUT)

5-2
IM DL850-03EN
5.2 Trigger Output (TRIGGER OUT)
CAUTION
Do not short the TRIG OUT terminal or apply external voltage to it. Doing so may damage the
instrument.
External Trigger Output Terminal
TRIGG ER
IN
OUT
When a trigger occurs, the DL850/DL850V produces a CMOS level signal. You can set the output
mode to normal or pulse. The signal level is normally high. It becomes low when a trigger occurs.
Item Specifications
Connector type BNC
Output level CMOS level (0 to 5 V)
Output formats Normal mode and pulse mode
Logic Normal mode Low when a trigger occurs and high after acquisition is
completed
Pulse mode Low when a trigger occurs and high after a specified period
of time has passed.
Output delay Normal mode Within 100 ns + 1 sample period
Pulse mode Within 100 ns + 1 sample period
Output hold time Normal mode 100 ns or more
Pulse mode 1 ms, 50 ms, 100 ms, or 500 ms
Circuit Diagram and Timing Chart for Trigger Output
EXT TRIG OUT
100 Ω
Equivalent to HC245
Trigger occurrence
(the time at the trigger position)
Trigger output
Internal trigger
Output hold time
Output delay
• Normal mode
Trigger occurrence
(the time at the trigger position)
Trigger output
Internal trigger
Output hold time
Output delay
• Pulse mode
Low Level and High Level Hold Times (In normal mode)
H
L
Trigger output
Post-trigger time
Trigger occurrence
Trigger occurrence
Pre
PostPost Pre
Waveform acquisition
Trigger Trigger