RPM841-H11 is an infrared communication module for IrDA Ver. 1.2 (Low Power). The module integrates infrared LED, PIN photo diode, and LSI into a single package. It is designed with power down function and low current consumption at stand-by mode. The ultra small package makes it a perfect fit for mobile devices.
The RPM841-H11 is an infrared communication module compliant with IrDA Ver.1.2 (Low Power). It integrates an infrared LED, PIN photodiode, driver and receiver circuitry in a single surface‑mount package, making it suitable for mobile phones, PDAs, digital cameras, printers and other handheld devices. The module includes a power‑down function and low standby current, and its ultra‑small dimensions (6.8 mm × 2.44 mm × 1.5 mm) allow easy integration.
The datasheet provides pin descriptions, electrical and optical characteristics, recommended operating conditions, and layout guidelines. Key specifications include a supply voltage of 3.0‑3.6 V, data rates up to 115.2 kbps, and an LED anode current of about 50 mA in IrDA mode. Proper configuration of TX‑RC and TX‑D inputs (set to “L” under 0.3 V) is required for normal operation.
| Supply voltage (absolute max) | 7.0 V |
|---|---|
| Supply voltage (operating) | 3.0‑3.6 V |
| LED supply voltage | 3.0‑5.5 V |
| Data rate | 2.4‑115.2 kbps |
| Operating temperature | -30 °C to +85 °C |
| Standby current (no light) | 90‑120 pA |
| Package dimensions | W 6.8 mm × D 2.44 mm × H 1.5 mm |
| Peak wavelength (IrDA mode) | 880‑888 nm |
| LED anode current (IrDA mode) | 50‑70 mA |
The module operates from –30 °C to +85 °C.
Both TX‑RC (pin 2) and TX‑D (pin 3) should be set to “L” (under 0.3 V) except when transmitting data.
The maximum data rate is 115.2 kbps.
The package measures 6.8 mm wide, 2.44 mm deep, and 1.5 mm high.