RPM971-H14E3A

RPM971-H14 Photo Link Module IrDA Infrared Communication Module RPM971-H14 RPM971-H14 is an infrared communication module for IrDA Ver. 1.4 (Low Power). The infrared LED, PIN photo diode, and waveform shaping LSI are all integrated into one single package. This module is designed for low power consumption. The very small package makes it a perfect fit for mobile devices. z Features 1) Infrared LED, PIN photo diode, LED driver and receiver frequency formation circuit built in. Improvement of EMI noise protection by Shield Case. 2) Applied to SIR (9.6k to 115.2kbps), MIR (0.576M, 1.152Mbps) and FIR(4Mbps). 3) Surface mount type. 4) Power down function built in. 5) Adjustable communication distance by LED load resistance value. z Applications Cellular phone, PDA, DVC, Digital still camera, Printer, Handy terminal etc. z Absolute maximum ratings (Ta=25C) Parameter Symbol Limits Units 1 Supply voltage Vcc / VLEDA / VIO 6.5 V Input voltage Vin(3,4,5pin) 0.3 to VIO+0.3 V Operation temperature Topr 25 to 85 C Storage temperature Tstg 30 to 100 C 2 LED peak current Ifp 400 mA 3 Power dissipation Pd 300 mW 1) This applies to all pins basis ground pin (8pin). 2) LED Peak Current : < 90 s, On duty < 25% 3) When glass-epoxy board (70x70x1.6mm) mounted. In case of operating environment is over 25C, 4mW would be reduced per each 1C stepping up. z Recommended operating conditions Parameter Symbol Min. Typ. Max. Units VCC 2.4 3.0 3.6 V Supply voltage VLEDA 2.7 3.0 5.5 V VIO 1.7 3.0 VCC V 1/8 RPM971-H14 Photo Link Module z Terminal description Pin No Terminal Circuit Function LED Anode Terminal Other power source can be used difference between LED LEDVCC and VCC. 1 LEDA LED current depends on LED load resistance value. Include internal current limiter (max.400mA). NC 2NC This terminal must be left open. VIO Transmitting Data Input Terminal H:LED radiant (PWDOWN= L ) CMOS Logic Level Input. 3 TXD Holding TXDstatus, LED will be turn off approximately 48 s. 600k Receiving Data Output Terminal VIO VIO When PWDOWN(5pin)= H , the RXD output will be pulled PWDOWN 300k up to VIO at approximately 300 k. 4 RXD Power-down Control and Mode SettingTerminal VIO H: POWERDOWN L : OPERATION PWDOWN 5 CMOS Logic Level Input. /Mode When input is, it will stop the receiving circuit, PinPD current and transmitting LED operation. VCC Supply voltage for Transceiver circuits. 6 VCC For preventing from infection, connect a capacitor between GND(8pin). VIO 7 VIO Supply voltage for I / O pins (PWDOWN,RXD,TXD). 8 GND GROUND Shield Case Connect to Ground. 2/8