Single chip DSP-based AM/FM car radio tuner

April 19, 2012 // By Paul Buckley
NXP Semiconductors has made a new addition to its highly successful family of RFCMOS-based one-chip car radio solutions. The TEF664x integrates a low-IF AM/FM tuner and DSP processing all in one chip and is designed for single-tuner applications.

OEMs and car radio manufacturers worldwide, particularly in the BRIC countries (Brazil, Russia, India, China), require highly integrated solutions that save external components and avoid complex system integration processes, without compromising on performance. To give maximum design flexibility to automotive OEMs and after-market head-unit suppliers, the new tuner TEF664x offers a fully scalable family, ranging from standard to advanced radio features, and with or without digital radio support via a co-processor such as NXP’s SAF356x.

With its scalable approach, the TEF664x is the right product for high-growth markets. According to Strategy Analytics (January 2012), the total number of infotainment systems in BRIC will represent a compound annual growth rate (CAGR) of 13% between 2012 and 2018, compared to a CAGR of 6% in mature automotive markets such as NA, EU, Japan, and South Korea. For the aftermarket, the projected CAGR in BRIC is 10%, while in the mature markets, this number is expected to remain flat.

NXP’s one-chip tuner family claims best-in-class reception performance using proven DSP-based digital processing technology. Car radio systems designed with the TEF664x can benefit from improved weak-signal handling, FM noise blanking, enhanced multi-path suppression of noise from environmental interference, click-noise suppression, plus many more features.

The ongoing global market trend towards maximum integration and power efficiency has fuelled the success of NXP’s leading one-chip tuner solutions. In particular, the fully integrated TEF663x one-chip, released at the start of 2011, has proven highly popular as the industry’s first to combine a complete radio solution – from antenna input to audio output – in a single RFCMOS chip. The TEF664x comes without a digital audio signal processing subsystem to support system flexibility for alternative configurations without sacrificing reception performance. The TEF664x optionally supports HD radio and DRM(+) via NXP’s SAF356x software-defined radio co-processor.

See the video introduction to the TEF664x: