TFDS4400

*) Note:
Transmitted data: continuously transmitted "0". In normal data transfer operation "0" and "1" will be transmitted with the same probability. Therefore, for that case, about a factor of two of safety margin is included. However,for worst case thermal stress testing such data pattern are often used and for this case the 400 mW/sr value has to be taken.

The TFDS4400 is a lowpower infrared transceiver module compliant to the IrDA 1.2 standard for infrared data communication, supporting IrDA speeds up to 115.2 kbit/s (SIR), HP-SIR, and carrier based remote control modes up to 100 kHz. Integrated within the transceiver module are a photo PIN diode, infrared emitter (IRED), and a lowpower control IC to provide a total frontend solution in a single package. Vishay Telefunken's TFDS4400 transceiver represents a novel package option enabling a minimized package height over the PCB of only 1.8 mm and nevertheless offering a full 1m IrDA 1.2 transmission range. The transceiver is capable of directly interfacing with a wide variety of I/O chips which perform the modulation/demodulation function, including National Semiconductor's PC87338, PC87108 and PC87109,SMC's FDC37C669, FDC37N769 and CAM35C44,and Hitachi's SH3. At a minimum, a current limiting resistor in series with the infrared emitter and a VCC bypass capacitor are the only external components required to implement a complete solution.