RPM871-H12 Photo Link Module IrDA Infrared communication Module RPM871-H12 RPM871-H12 is an infrared communication module for IrDA Ver. 1.2 (Low Power). The infrared LED, PIN photo diode, LSI are all integrated into a single package. This module 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. z Features 1) Infrared LED, PIN photo diode, LED driver & Receiver frequency formation circuit built in. Improvement of EMI noise protection because of Shield Case. 2) Applied to SIR (2.4 to 115.2kbps) 3) VCC supply voltage range is from 2.6V to 3.6V. 4) Surface mount type. 5) Power down function built in. 6) Adjustable communication distance by LED load resistance value. (approximately 20cm to 60cm) z Applications Cellular phone, PDA, DVC, Digital Still Camera, Printer, Handy Terminal etc. z Absolute maximum ratings (Ta=25C) Parameter Symbol Limits Unit 1 Supply voltage Vmax 7.0 V Input voltage Vin 0.3 to Vcc+0.3 V Operation temperature Topr C 20 to +85 Storage temperature Tstg C 30 to +100 2 LED peak current IFP 200 mA 3 Power dissipation Pd 150 mW 1 This applies to all pins basis ground pins (1.4pin) 2 LED peak current<90s. ON duty<20% 3 When glass-epoxy board (70701.6mm) mounted. In case operating environment is over 25C, 2mW would be reduced per each 1C stepping up. z Recommended operating conditions (Ta=25C) Parameter Symbol Min. Typ. Max. Unit Supply voltage VCC 2.6 3.0 3.6 V LED supply voltage LEDVCC 2.6 2.8 5.5 V 1/7 RPM871-H12 Photo Link Module z Block diagram and application circuit GND NC VCC VCC GND GND C1 PWDOWN POWER PWDOWN DOWN RXD RXD TXD TXD R1 LEDA (LEDVCC) LED DRIVER VCC (3pin) and VLEDA (8pin) can be used on either common power source or different one 2/7 AMP AMP AMP 8 76543 2 1