YOKOGAWA DL7440 User Manual

14-1
IM 701450-01E
14
Rear Panel Auxiliary I/O Section
Chapter 14 Rear Panel Auxiliary I/O Section
14.1 External Trigger Input, External Clock Input,
and Trigger Gate Input
CAUTION
Only input signals that meet the specifications below. Otherwise, undesirable
signal such as excessive voltage may damage the DL7400.
External Trigger Input Terminal
This terminal is used when an external signal is used as a trigger source (see section
6.6). This terminal is also used as the external clock input terminal (EXT CLOCK IN) and
the trigger gate input terminal (TRIG GATE IN).
Item Specifications
Connector type BNC
Maximum input voltage ±40 V (DC+ACpeak) or 28 Vrms when the frequency is 10 kHz or
less
Input frequency bandwidth DC to 100 MHz
Input impedance Approx. 1 MΩ, approx. 22 pF
Input range ±2 V
Trigger sensitivity 0.1 V
P-P
Trigger level ±2 V (resolution is 5 mV)
EXT CLOCK IN
≤40Vpk 1MΩ
EXT TRIG IN
TRIG GATE IN
External Clock Input Terminal
Use this terminal if you wish to operate the DL7400 using an external clock signal (see
section 5.11). This terminal is also used as the external trigger input terminal (EXT TRIG
IN) and the trigger gate input terminal (TRIG GATE IN).
Item Specifications
Connector type BNC
Maximum input voltage ±40 V (DC+ACpeak) or 28 Vrms when the frequency is 10 kHz or
less
Frequency range 40 Hz to 20 MHz (continuous clock only)
Input impedance Approx. 1 MΩ, approx. 22 pF
Input range ±2 V
Threshold level ±2 V (resolution is 5 mV)
Minimum input amplitude 0.1 V
P-P
Minimum pulse width 10 ns or more for high and low
EXT CLOCK IN
≤40Vpk 1MΩ
EXT TRIG IN
TRIG GATE IN
Note
The threshold level for the external clock input and the trigger level for the external trigger
input are common.

YOKOGAWA DL7440 Specifications

General

Brand	YOKOGAWA
Model	DL7440
Category	Test Equipment
Language	English