YOKOGAWA DL850E - External Clock Input (EXT CLK IN)

5-4
IM DL850E-03EN
5.3 External Clock Input (EXT CLK IN)
CAUTION
Only apply signals that meet the following specifications. Signals that do not meet the
specifications may damage the DL850E/DL850EV, because of factors such as excessive
voltage.
French
ATTENTION
Appliquer uniquement des signaux respectant les spécifications ci-dessous. Les signaux
ne respectant pas les spécifications risquent d’endommager DL850E/DL850EV, à cause de
facteurs tels que la surtension.
External-clock input terminal
EXT CLK IN
Use this terminal to operate the DL850E/DL850EV using an external clock signal.
Item Specifications
Connector type BNC
Input level TTL (0 to 5 V)
Detected edge Rising
Minimum pulse width 50 ns or more for both high and low
External clock frequency range Up to 9.5 MHz
Circuit Diagram for External Clock Input
Equivalent
to LCX14
EXT CLK IN
100 Ω
+5 V
4.7 kΩ
100 pF