Si4791x Common Specs
- Worldwide FM band support (64–108 MHz)
- Worldwide AM band support (520–1710 kHz)
- LW band support (144–288 kHz)
- SW band support (2.3–30 MHz)
- DAB/DAB+/DMB support (170–240 MHz, 1452–1492 MHz) (Si47912 only)
- NOAA Weather Band support
- On-chip soft-decision RDS/RDBS demodulator/decoder
- Frequency synthesizer with fully integrated PLL-VCO
- Integrated clock oscillator
- 1.8 V or 3.3 V digital IO power supplies
- 3.3 V analog power supply and 1.8 V digital power supply
- QFN 84-pin, 12x12x0.85 mm
- Pb-free/RoHS compliant
- AEC-Q100 qualified (A-grade parts)
AM/FM:
- Comprehensive AM/FM signal processing firmware
- Integrated active AM/FM buffers for background/data tuners
- Fully integrated AGC for AM and FM inputs
Audio:
- Tensilica HiFi EP audio DSP with 288 kB for program and data memory
- Seven analog audio inputs
- Six analog audio outputs
- Seven digital audio ports (I2S) with TDM support
- Up to 24 synchronous or asynchronous sample rate converters
HD Radio:
- Digital I/Q interface to HD Radio Processor
- Fast FM HD Radio band scan
DAB/DAB+/DMB (Si47912 only):
- Digital I/Q interface to DAB/DAB+/DMB processor
- Integrated active Band III/L-band buffers for background/data tuners
- Fast DAB/DAB+/DMB band scan
- Fully integrated AGC for Band III and L-Band inputs
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