SI4757-A10-AM Datasheet, PDF (1/3 Pages) Silicon Laboratories – High Performance Automotive AM/FM Radio Receiver

Si475x-A10
High Performance Automotive AM/FM Radio Receiver
Description
The Si475x radio receiver family employs RF CMOS
technology to bring outstanding radio receiver performance
and automotive quality to the automotive infotainment
industry. The Si475x family supports worldwide FM, AM,
shortwave, longwave, and weatherband radio reception.
The Si475x receiver system specifies a minimal bill of
materials, resulting in a very small board space
requirement, making the solution ideal for any automotive
application from single tuner radios to multiple tuner radios
addressing companion TMC/AF reception/scanning.
The monolithic IC incorporates a digital signal processor
and microcontroller, leveraging Silicon Laboratories
patented and proven low-IF architecture, delivering
superior RF performance and interference rejection, as
well as excellent sensitivity in weak signal environments
and superb selectivity and inter-modulation immunity in
strong signal environments. The device performs signal
conditioning with dynamic AM/FM channel bandwidth
control, a comprehensive set of weak signal processing
engines, auto-calibrated digital tuning, and proven AM/FM
seek functionality based on multiple signal quality and
band parameters. The device offers world-class
performance for complete Radio Data Service (RDS)
decoding, synchronization, error detection and correction.
The device is also completely configurable, allowing raw
RDS data if so desired.
The part provides an integrated clock oscillator or accepts
a reference clock and an I²C-compatible 2-wire control
interface.
FMAGC1 FMAGC2
Features
- Worldwide FM band support (64–108 MHz)
- Worldwide AM band support (520–1710 kHz)
- Advanced RDS/RBDS demodulator/decoder
- Digital FM MPX decoder
- Integrated FM loop-through
- Addresses companion AF/RDS data receiver
- Advanced AM/FM noise blankers
- Dynamic AM/FM channel bandwidth control
- Advanced FM hi-cut control
- Programmable FM stereo-mono blend
- Programmable AM/FM soft mute
- Full suite of signal metrics: RSSI, SNR, multi-path
interference, frequency offset, adjacent channel strength
- Analog audio outputs
- Analog FM MPX output
- Low-IF architecture
- Eliminates expensive 10.7 MHz IF ceramic filters
- On-chip AM/FM AGC with integrated resistor and
varactor banks
- Eliminates external PIN diode attenuators
- 1.5 to 5 V power supplies
- QFN 32, 5 x 5 x0.85 mm
- Pb-free/RoHS compliant
- AEC-Q100 qualified
Applications
- OEM Car Radio Systems
- Aftermarket Car Radio Systems
- OEM Car PND Docking System
FMXI
RFREG
FMO
FMI
AMI
RFGND
RF PKD
REG
RL
LNA
RF PKD
RF PKD
IF PKD
0°/90°
LNA
CIK
Gen
Si475x
RDS
CNTRL
LOUT/MPXOUT
ROUT
INTB
RSTB
VIO
Automotive AM/FM Tuner
Copyright © 2010 by Silicon Laboratories
11.16.10