TFDU4101 IrDA Transceiver Module. Integrated within the transceiver module are a photo PIN diode, an infrared emitter (IRED), and a low-power control IC to provide a total front-end solution in a single package. supports IrDA speeds up to 115.2 kbit/s (SIR) Operates from 2.4 to 5.5V Split power supply, transmitter and receiver can be operated from two power supplies Low power consumption Power shutdown mode Surface mount package dimensions 9.7 ;font face:"symbol">´ ;/font>4.7 ;font face:"symbol">´ ;/font>4.0mm