SI4613-A10 Datasheet, PDF (1/3 Pages) Silicon Laboratories – Low-Power, High-Performance AM/FM HD Radio Baseband Processor

Si4613-A10
Low-Power, High-Performance AM/FM HD Radio™
Baseband Processor
Description
The Si4613 HD Radio™ radio processor provides
significant advances in size, power consumption, and
performance to enable HD Radio reception in automotive
infotainment systems and car radios as well as in high-end
audio/video receivers and pro-audio systems. It is
designed to work with the high-performance automotive
Si476x and Si479x families of AM/FM radio tuners.
The Si4613 HD Radio processor supports the iBiquity and
NRSC-5 standards for FM In-Band-On-Channel (IBOC)
and AM IBOC digital radio broadcasting. The processors
support Station Information Service (SIS), Service
Information Guide (SIG), Program Service Data (PSD),
IBOC multicasting, and HD Radio digital audio.
The Si4613 implements a version of iBiquity’s Cayenne HD
Radio core, optimized for low power, cost, and footprint. It
features an extremely efficient Viterbi decoder, thereby
eliminating the need for an external SRAM memory
module. The Si4613 HD Radio core utilizes iBiquity’s
proprietary HDC codec to decode the HD radio signal and
directs the HD radio audio output to other system ICs
through an I2S digital audio interface. The Si4613 enables
many additional features, such as real-time traffic, iTunes
Tagging and Artist Experience by providing the Advanced
Application Services (AAS) payload to the external
application processor.
The Si4613 HD Radio core was co-developed by Silicon
Labs and iBiquity and is the most advanced power-efficient
HD Radio processing core available today.
Features
- AM/FM HD Radio channel decoder (Si4613)
- Complete on-chip HDC audio source decoder
- FM HD1, HD2, HD3 multicast support
- Station Information Service (SIS) support
- Program Service Data (PSD)
- Advanced Application Services (AAS) Payload for data
applications
- No external RAM required for channel decoding
- Flash memory interface for application program load
- On-chip crystal oscillator
- Reference clock input
- SPI, I²C control interfaces
- QFN 48-pin, 7x7x0.85 mm
- Pb-free/RoHS compliant
- AEC-Q100 qualified
Applications
- Aftermarket car radio systems
- OEM automotive infotainment systems
- OEM automotive PND docking systems
Si4613
Blend flag
IIN
QIN
IQFS
IQCLK
SRC/Channel Filter
CLK Gen
OFDM
Demod
Channel Decoder
PSK/QAM
Demod
De-interleaver/
FEC
FLASH
Interface
HDC^TM
I²S
Decoder
Data
Processing
I²C/SPI
Host
Interface
Power
DFS
DCLK
DOUT
SCLK/SCL
SSB/A1
MISO/A0
MOSI/SDA
INTB
RSTB
GPIO 0 - n
SMODE
Digital Radio Receiver
Copyright © 2015 by Silicon Laboratories
3.3.2015