RPM882-H14
Photo Link Module
3/9
Terminal description
Terminal
Circuit
Function
Pin No
2
1
VIO
GND
Supply voltage for I/O pins.
(TX-RC, PWDOWN, RXD, TXD)
Ground
Power Supply Terminal
For preventing from infection, connect
a capacitor between VCC (3pin) and
GND (1pin).
Connect to Ground.
3
VCC
PWDOWN /
LED Mode
RXD
TXD
LEDA
Shield Case
4
5
6
7
8
TX-RC
VIO
VIO
200k
LED
VIO
200k
VIO
VIO
300k
PWDOWN
RC Transmitting Data Input Terminal
H : LED Emitting
CMOS Logic Level Input
Holding TX-RC='H' status, LED will be
turn off approximately 48祍.
Power-down Control and LED
Intensity switching Terminal
CMOS Logic Level Input
When input is 'H', it will stop the receiving
circuit and Pin-PD current.
H : POWERDOWN (RC transmitting Mode)
L : OPERATION
Receiving Data Output Terminal
CMOS Logic Level Output
When PWDOWN (5pin)= 'H', the RXD
output will be pulled up to VIO at
approximately 300k&.
Transmitting Data Input Terminal
IrDA TXD input at PWDOWN=L
(Remote control transmitting input at PWDOWN=H).
H : LED Emitting
CMOS Logic Level Input
Holding TXD="H" status, LED will be
turn off approximately 48祍.
LED ANODE Terminal
Other power source can be used
difference between LEDVCC and VCC.
LED current depends on LED load
resistance value at RC mode.