Description
The Si4702/03-C19 extends Silicon Laboratories 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. The Si4702/03 leverage Silicon Laboratories highly successful and patented Si4700/01 FM tuner, and are pin and software compatible to existing Si4700/01 FM tuner designs. The Si4702/03 benefits from proven digital integration and 100% CMOS process technology, resulting in a completely integrated solution. The Si4702/03 proven and highly flexible functionality caters to the subjective nature of audio preferences and variable FM broadcast environments worldwide.

FEATUREs
- 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
- 2.7 to 5.5 V supply voltage
- Integrated LDO regulator allows direct connection to battery
- 3 x 3 mm 20-pin QFN package
    - Pb-free/RoHS compliant
- RDS/RBDS Processor (Si4703)
- Integrated crystal oscillator

APPLICATIONs
- Cellular handsets
- MP3 players
- Portable radios
- USB FM radio
- PDAs
- Notebook PCs
- Portable navigation
- Consumer electronics