TRF6900 TI Single Chip RF Transceiver by Texas Instruments
The TRF6900 single-chip solution is an integrated circuit intended for use as a low cost FSK transceiver to establish a frequency-agile, half-duplex, bidirectional RF link. The device is designed to provide a fully-functional multichannel FM transceiver. The single chip transceiver operates down to 2.2 V and is expressly designed for low power consumption.