RPM882-H12 
 
Photo Link Module
 
 
 
7/9 
 
(2-b) RC transmit mode at IrDA receiver power down condition.
IrDA
IrDA
RC
RC
TXD
(7pin)
Min 1祍
Min 1祍
Min 1祍
Min 1祍
TX-RC
(4pin)
PWDOWN
(5pin)
LED Emitting
If TX-RC or TXD input pulse width is wider than 48?/SPAN>s, output LED emitting pulse will be turn off approximately 48?/SPAN>s.
mitting Mode
Input
Condition
PWDOWN
L
L
H
H
TX-RC
LED Mode
L
L
L
OFF
IrDA
RC
OFF
Recriver circuit
ON
ON
OFF
OFF
TXD
L
L
L
 
 
 
(Receiving side)
Min 200祍
ight input
WDOWN RXD
5pin)
XD
6pin)
Pull up to VIO at
approximately 300k&
RXD output width is fixed approximately 2.3?/SPAN>s.
Note RXD output become stable after 200祍 since PWDOWN is changed from H to L.
RXD output could be unstable at H to L within 200祍.
 
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