YOKOGAWA SL1400 - Chapter 14 External Trigger I;O, External Clock Input, and Video Signal Output; External Trigger Input (TRIG IN)

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IM 701240-01E
External Trigger I/O, External Clock Input, and
Video Signal Output
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Chapter 14 External Trigger I/O, External Clock Input, and Video Signal Output
14.1 External Trigger Input (TRIG IN)
CAUTION
Only input signals that meet the specifications below. Otherwise, undesirable signal
such as excessive voltage may damage the SL1400.
External Trigger Input Terminal
TRIG IN
This terminal is used when an external signal is used as a trigger source (see section
6.6).
Specifications
Connector type: RCA jack
Input Level: TTL (0 to 5 V)
Minimum pulse width: 500 ns
Logic: Rising edge or falling edge
Trigger delay time: Within (200 ns + 1 sample period)
Externally synchronized operation: Possible (by connecting TRIG IN and TRIG OUT on
two SL1400s)
External Trigger Input Circuit Diagram and Timing Chart
LCX14 or
equivalent
100 Ω
4.7 kΩ
100 pF
+5 V
Minimum pulse
width
Trigger delay time
TRIG IN
(when set to )
Internal trigger
Note
By using the trigger output function, the operation of two SL1400s can be synchronized.
TRIG
OUT
No.1
TRIG
IN
No.2
SL1400
SL1400