RPM972-H14 is an IrDA Ver. 1.4 (Low Power) infrared communication module that integrates the infrared LED, PIN photodiode, and waveform shaping LSI into a single package. This module is designed for low power consumption and is very small, making it ideal for mobile devices. It also provides IR remote control transmission for universal remote control applications.
The RPM972-H14 Photo Link Module combines an infrared LED, PIN photodiode, LED driver and receiver frequency‑forming circuit in a single surface‑mount package. It supports IrDA SIR, MIR and FIR rates (9.6 kbps‑4 Mbps) and includes a power‑down function and adjustable communication distance via LED load resistance.
The document provides electrical characteristics, pin descriptions, timing charts, mechanical dimensions and layout recommendations. It also lists recommended operating conditions, absolute maximum ratings and application circuit examples for designers integrating the module into mobile devices, printers, cameras and other equipment.
| Supply voltage VCC (typical) | 3.0 V |
|---|---|
| Supply voltage VCC (minimum) | 2.4 V |
| Supply voltage VCC (maximum) | 3.6 V |
| Power‑down function | Built‑in |
| Communication modes | SIR, MIR, FIR |
The recommended supply voltage VCC is 3.0 V, with a minimum of 2.4 V and a maximum of 3.6 V.
The RXD (pin 4) trace should be routed on the backside via a through‑hole close to the module and kept away from the photodiode side to minimize feedback.
It supports SIR (9.6 kbps‑115.2 kbps), MIR (0.576 Mbps‑1.152 Mbps) and FIR up to 4 Mbps.