NXP DSP-based single-chip radio tuner ICs TEF668x Premium car radio tuner with state-of-the-art signal processing These next-generation tuners offer outstanding performance levels with the broad range of features and state-of-the-art algorithms, especially for multipath environments. When combined with a coprocessor, it offers additional support for HD Radio and DRM. KEY FEATURES `` Alignment-free digital receiver with tuner and softwaredefined radio processing `` Full worldwide band coverage of AM (LW, MW, SW) and FM (65 to 108 MHz) `` Advanced RDS and RBDS demodulation and decoding `` State-of-the-art FM Improved Multipath Suppression `` FM Channel Equalization `` Soft Mute on Modulation `` Stereo High Blend `` FM LNA with AGC `` AM and FM noise blanking, signal quality detection, and weak signal processing `` Digital IF signal processing including decimation, shift to baseband, AGC control, I/Q correction, variable IF bandwidth filtering (PACS), and demodulation `` FM stereo decoding NXP_06_0147_TEF668x leaflet_939775017468_v4.indd 1 `` TEF6688 baseband I²S output supporting HD Radio and DRM with digital radio coprocessor (SAF356x or SAF360x) `` Blending function for HD Radio reception (TEF6688) `` MPX output supporting DARC demodulator `` One I²S input, one I²S output `` Two mono audio DACs `` Single 3.3 V supply voltage `` Configurable GPIO pins for RDS, Quality Status Interrupt, and generic I2C-controlled I/O `` Qualified in accordance with AEC-Q100 APPLICATIONS `` Premium automotive applications that support analog AM/ FM, HD Radio, and DRM reception `` Aftermarket platforms for high-end car radios `` High-end consumer audio systems 13/09/13 15:28 General Description 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). Selection guide Features TEF6686 TEF6688 Digital-to-analog converters (DACs) 2 2 Audio I S output (can be disabled or enabled) √ √ 2 Radio Bands AM: LW-MW AM: SW FM √ √ √ HD Radio and DRM support - √ Standard radio features RDS demodulator and decoder FM PACS Softmute HighCut Stereo blend √ √ √ √ √ Advanced radio features AM & FM IF noise blanking Dynamic LowCut √ √ High-end radio features iMS (improved Multipath Suppression) CEQ (Channel Equalization) Soft mute on modulation Stereo high blend √ √ √ √ Package HVQFN32 www.nxp.com © 2013 NXP Semiconductors N.V. All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The Date of release: September 2013 information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and Document order number: 9397 750 17468 may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof Printed in the Netherlands does not convey nor imply any license under patent- or other industrial or intellectual property rights. NXP_06_0147_TEF668x leaflet_939775017468_v4.indd 2 13/09/13 15:28