The NXP TEF6686 and TEF6688 are single-chip radio ICs that include an AM/FM radio tuner and software-defined radio signal processing. These low-IF, high-performance ICs extend NXP’s broad, industry-proven portfolio for single-tuner car radios, and offer outstanding radio performance. The wide range of features and state-of-the-art software algorithms let designers optimize system costs in high-end premium applications. Both devices are available in HVQFN packages that save PCB space and support dual- and multi-layer PCBs. The radio receiver includes an AM/FM front-end, a tuning synthesizer, channel filtering, FM channel equalization, FM multipath improvement, demodulation, FM stereo decoding, weak-signal processing, noise blanking, and RDS, and has an interface to a DARC demodulator/decoder. Both devices provide stereo audio in digital format on an I2S output and an audio DAC output. When used with the NXP radio coprocessor SAF356x or SAF360x, the TEF6688 supports the digital radio standards HD Radio and Digital Radio Mondiale (DRM).
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