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RF/Microwave  

Audio/radio chip supports two tuners for cars

Posted: 19 Nov 2012     Print Version  Bookmark and Share

Keywords:car  radio  audio  DSP  tuner 

NXP Semiconductors NV launches the SAF775x Dual-Tuner RFCMOS integrated car radio and audio system in one chip. The device features a multi-standard frontend that includes AM, FM and DAB tuners; DSP-based AM/FM radio processing; an advanced multi-core audio sub-system; an on-chip microcontroller; plus a range of digital and analogue interfaces and I/Os.

The SAF775x integrates two independent tuners onto a single die, making for a compact solution that cuts BOM and costs. It is also said to offer more than twice the processing power of previous generations for improved radio performance and better all-round reception quality.

The chip also offers open programmability with an 'open' Tensilica HiFi 2 Audio DSP for customers to program their own features or to run third-party software. This gives car radio manufacturers the choice and flexibility to differentiate their car infotainment solutions without resorting to expensive external ICs.

Advanced audio processing is another benefit that the new SAF775x brings to the market. Customers may wish to use the HiFi 2 Audio DSP for audio processing from third party vendors such as Arkamys or AM3D. Another innovative application that can run on this HiFi 2 Audio DSP is active noise cancellation of engine sound: uncomfortable harmonics interfering with music playback and the general driving experience are removed by means of audio software processing. In combination with 3rd party software, the SAF775x offers an inexpensive way of damping the unwanted noise and replicating the desirable engine sound.

Samples of the SAF775x car radio and audio system are available now.





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