4-5
IM DL350-03EN
External Signal I/O
1
2
3
4
5
6
App
Index
4.3 External Clock Input (CLKI)
CAUTION
Only apply signals that meet the following specifications. Signals that do not meet the
specifications may damage the instrument 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 l'instrument, à cause de facteurs tels
que la surtension.
External Clock Input Terminal (CLKI)
CLKI: External clock input
Use this terminal to operate the instrument using an external clock signal.
Item
Specifications
Input level
TTL (0 to 5 V)
Detected edge
Rising
Minimum pulse width
300 ns or more for both high and low
External clock frequency range
Up to 1 MHz
Circuit Diagram for External Clock Input
Equivalent
to LCX14
EXT CLK IN
100
Ω
+5 V
4.7 k
Ω
100 pF
Connecting a Wire to the Terminal
For instruction on how to connect a wire to the terminal, see page 4-2.