SZ123

The Si472x is the first single-chip FM radio transceiver. The proven and patented digital architecture of the Si472x combines the functionality of the Si470x FM radio receiver with the Si471x FM transmitter, offering full FM receive and transmit capabilities in a single, ultra-small 3 x 3 x 0.55 mm QFN package.

Si4720 FM radio receiver and transmitter with digital audio compression

Si4721 FM radio receiver and transmitter with digital audio compression and RDS

Features

Worldwide FM receive band support (76–108 MHz)

Worldwide FM transmit compliance (76–108 MHz)

Digital audio out for FM record (Si4721)

Digital audio in for FM transmit (Si4721)

RDS/RBDS encoder and decoder (Si4721)

Applications

Cellular handsets/hands free

MP3 players

Portable media players

GPS/navigation devices

Satellite digital audio radios

Personal computers