RPM841-H16

Photo Link Module

Rev.B

7/9

(2-b) RC transmit mode at IrDA receiver power down condition.

IrDA

IrDA

RC

RC

TXD

(3pin)

Min 1

µs

Min 1

µs

Min 1

µs

Min 1

µs

TX-RC

(2pin)

PWDOWN

(5pin)

LED Emitting

Emitting 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

µs

Light input

PWDOWN

(5pin)

RXD

(4pin)

approximately 300k

Ω

Note RXD output become stable after 200

µs since PWDOWN is changed from H to L.

RXD output could be unstable at H to L within 200

µs.