![](/html/ROHM/591055/page5.png)
Photo Link Module
zTiming chart
(Emitting side)
TXD
(7pin)
less than 48µs
more than 48µs
(emitting)
(emitting)
Internal LED
(Light output)
approximately 48µs
(Detecting side)
Light input
less than 2.3µs
more than 2.3µs
RXD
(6pin)
approximately 2.3µs
approximately 2.3µs
RPM872-H12
(emitting)
pull up to VIO at approximately 300kΩ
PWDOWN
(5pin)
zAttached components
Recommended values
Part symbol
Recommended value
C1
1µF, tantalum or ceramic
Ex.) TCFGA1A105M8R (ROHM)
Notice
Bigger capacitance is recommended with much noise from power supply
Rev.A
5/6