The Si4703-C incorporates a digital processor for the European Radio Data System (RDS) and the US Radio Broadcast Data System (RBDS) including all required symbol decoding, block synchronization, error detection, and error correction functions. RDS enables data such as station identification and song name to be displayed to the user. The Si4703-C offers a detailed RDS view and a standard view, allowing adopters to selectively choose granularity of RDS status, data, and block errors. Si4703-C software is backwards compatible to the proven Si4701, adopted by leading cell-phone and MP3 manufacturers world-wide. The Si4702/03-C19 is based on the superior, proven performance of Silicon Laboratories' Aero architecture offering unmatched interference rejection and leading sensitivity. The device uses the same programming interface as the Si4701 and supports multiple bus-modes. Power management is also simplified with an integrated regulator allowing direct connection to a 2.7 to 5.5 V battery. The Si4702/03-C19 device’s high level of integration and complete FM system production testing increases quality to manufacturers, improves device yields, and simplifies device manufacturing and final testing. Worldwide FM band support (76–108 MHz) Digital low-IF receiver Frequency synthesizer with integrated VCO Seek tuning Automatic frequency control (AFC) Automatic gain control (AGC) Excellent overload immunity Signal strength measurement Programmable de-emphasis (50/75 µs) Adaptive noise suppression Volume control Line-level analog output 32.768 kHz reference clock 2-wire and 3-wire control interface 3.3V supply voltage Integrated LDO regulator allows direct connection to battery Pb-free/RoHS compliant RDS/RBDS Processor Integrated crystal oscillator

Suitable for Cellular handsets, MP3 players, Portable radios, USB FM radio, PDAs, Notebook PCs, Portable navigation, Consumer electronics. Worldwide FM band support (76–108 MHz),3.3V supply voltage, Automatic frequency control (AFC), Automatic gain control (AGC), RDS/RBDS Processor. The device offers significant programmability, and caters to the subjective nature of FM listeners and variable FM broadcast environments world-wide through a simplified programming interface and mature functionality. Si4703 RDS FM Radio Module integrates the complete tuner function from antenna input to stereo audio output for FM broadcast radio reception. The Si4703 extends the Si4700/01 FM tuner family, and further increases the ease and attractiveness of adding FM radio reception to mobile devices through small size and board area, minimum component count, flexible programmability, and superior, proven performance.