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 Skyworks

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