YOKOGAWA DL750 User Manual

14-3
IM 701210-06E
External Trigger I/O, External Clock Input, and
Video Signal Output
14
14.3 External Clock Input (EXT CLK IN)
CAUTION
Only input signals that meet the specifications below. Otherwise, undesirable
signal such as excessive voltage may damage the DL750/DL750P.
External Clock Input Terminal
TRIG OUT/
EXT CLK IN
Use this terminal if you wish to operate the DL750/DL750P using an external clock
signal.
This terminal is shared with the trigger output terminal (TRIG OUT).
Specifications
Connector type: RCA jack
Input Level: TTL (0 to 5 V)
Valid edge: Rising edge
Minimum pulse width: 400 ns or more for high and low
External clock frequency range: 1 MHz maximum.
External Clock Input Circuit Diagram
LCX14 or equivalent
EXT TRIG OUT
EXT CLK IN
100 Ω
+5 V
HC245 or equivalent
4.7 kΩ
100 pF

YOKOGAWA DL750 Specifications

General

Brand	YOKOGAWA
Model	DL750
Category	Measuring Instruments
Language	English