Description

The Si473x-D60 digital CMOS AM/FM radio receiver IC integrates the complete tuner function from antenna input to digital audio output and includes a stereo audio AUXIN ADC input for converting analog audio into standard I2S digital audio, enabling a cost efficient digital audio platform for consumer electronic applications with high TDMA noise immunity, superior radio performance, and high fidelity audio power amplification. When enabling the analog inputs in stereo AUXIN ADC-mode, the Si473x-D60 supports I2S digital audio output only (no analog output).

Features

■ Worldwide FM band support (64–108 MHz)

■ Worldwide AM band support (520–1710 kHz)

■ SW band support (Si4734/35) (2.3–26.1 MHz)

■ LW band support (Si4734/35) (153–279 kHz)

■ Excellent real-world performance

■ Integrated VCO

■ Advanced AM/FM seek tuning

■ Automatic frequency control (AFC)

■ Automatic gain control (AGC)

■ Digital FM stereo decoder

■ Programmable de-emphasis

■ Advanced Audio Processing

■ Multiplexed stereo audio AUXIN ADC with 85 dB dynamic range

■ Seven selectable AM channel filters

■ AM/FM/SW/LW digital tuning

■ EN55020 compliant

■ No manual alignment necessary

■ Programmable reference clock

■ Adjustable soft mute control

■ RDS/RBDS processor (Si4731/35)

■ Digital audio out

■ 2-wire and 3-wire control interface

■ Integrated LDO regulator

■ Wide range of ferrite loop sticks and air loop antennas supported

■ QFN and SSOP packages

• RoHS compliant

Applications

■ Table and portable radios

■ Mini/micro systems

■ CD/DVD and Blu-ray players

■ Stereo boom boxes

■ Modules for consumer electronics

■ Clock radios

■ Mini HiFi and docking stations

■ Entertainment systems