Si4791x High-Performance Automotive AM/FM Radio Receiver and HD Radio™ /DAB/DAB+/DMB/DRM Tuner with Audio System

• 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