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Car radio chips aimed at automotive infotainment designs

27 Mar 2015

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Silicon Labs announced what it flaunts as a complete line-up of receivers/audio processors and multi-standard digital radio ICs geared for the global car radio market. According to the company, the Si479xx family of AM/FM receivers and digital radio tuners offer exceptional car radio reception performance with on-chip audio processing at the lowest system cost.

The Si46xx family, which includes single-chip digital radio coprocessors and data receivers, provides an advanced digital radio audio decoding and data reception solution for analogue and digital radio. Silicon Labs developed the Si479xx and Si46xx portfolio to address the global demand for advanced car radio technology supporting all worldwide broadcast radio bands.

Si479xx family

Leveraging Silicon Labs' patented low-IF digital architecture, the Si479xx family delivers superior RF performance and interference rejection for car radio applications, stated the company. The proven RF CMOS design, combined with comprehensive AM/FM firmware, sets a higher bar for key automotive radio metrics, such as sensitivity in weak signal environments, selectivity in the presence of blockers, and immunity to multipath fading and distortion. An integrated audio subsystem provides an innovative solution to synchronise, process and distribute digital and audio signals in the automotive head-unit. To reduce time-to-market for developers, Silicon Labs offers four-channel and six-channel audio post-processing reference designs. In addition, Silicon Labs provides a software development kit (SDK) that simplifies porting of third-party algorithms to the audio subsystem.

Silicon Labs' Si462x data receiver family offers a comprehensive, cost-effective platform that supports analogue and digital radio by integrating a multiband RF tuner, demodulator and channel decoder on a single die. The Si462x receivers provide significant advances in size, power consumption and performance over all other solutions in the market to enable HD Radio and DAB/DAB+ data services in automotive infotainment systems and car radios. The Si462x family's high level of single-chip integration also simplifies infotainment system design cycles, added the company.

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