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Silicon Laboratories Inc. announces the extension of its broadcast audio product portfolio to include the Si473x AM/FM receiver family. The Si473x enables an AM/FM receiver to be easily added to consumer devices such as clock and portable radios, home stereos, MP3 players, docking stations and mobile handsets. The Si473x is one of the first fully-integrated AM/FM radio receiver from antenna input to audio output in a single monolithic IC. Conventional AM/FM radio implementations are large, expensive and difficult to manufacture, limiting the inclusion of AM radio functionality in many small, portable, high-volume applications. The single-chip Si473x requires only two external components in 0.15 cm2 of board space compared to more than 50 components and 10 cm2 of board space for conventional solutions. By leveraging an innovative digital architecture, the Si473x significantly simplifies design and manufacturing. The Si473x is an AM/FM receiver that does not need manual alignment, which can take up to several minutes per device. While traditional AM/FM solutions may require four stages of hand tuning, the Si473x supports a wide variety of antennas with an on-chip varactor and auto calibration to streamline manufacturing.

Silicon Laboratories