Audio Dock: Performance

With the popularity of portable media and the devices that carry them, the ease of drop and sync capability with computers and media centers becomes important. This audio dock design uses TI audio processors for performance designs.

Block Diagram


AC Adapter Audio Codec / ADC Audio Codec / DAC Battery Management Digital Audio Processor Digital Audio SOC IRDA Input Amplifiers Input Amplifiers Integrated Solution Line Amplifier Loise Noise LDOs Low Power Wireless Speaker Amp (Wfr) Speaker Amplifier (R/L) System Power USB

Design Considerations

The Audio Dock: Performance speaker system is powered by AC mains and provides the highest level of audio performance. Using a highly efficient Class-D amplifier extends battery runtime and requires no costly heat sink. The speaker output includes two stereo amplifiers - one to drive the left and right speakers, and the other that drives a dual-coil subwoofer. The system allows audio input from a docking connector, USB streaming audio, or a line input. Newer generation TI audio codecs, such as the TLV320AIC3254, process sound with better audio quality and longer battery life.

TI recognizes that this class of speaker systems has a tradeoff between output power and sound quality, and in the case of a portable system, battery runtime. The block diagrams for the Basic, Portable and Performance audio docking stations represent a balance of these requirements, each optimized for a different usage model.

Application Notes

  • Flash Programming Solutions for the TMS320F28xxx DSCs (spraal3.htm, 8 KB)
    19 Aug 2008 Abstract
    

Selection and Solution Guides

Solution Guides

  • Audio Guide 3Q 2008 (Rev. C) (slyy013c.pdf, 3.22 MB)
    29 Aug 2008 Download

Product Bulletin & White Papers

Product Bulletin

  • TAS3204: Audio System on Chip, Ideal iPod/MP3 Dock Solution Product Bulletin (sprt410.pdf, 54 KB)
    06 Dec 2006 Download

White Papers

  • Audio Compression Algorithm Overview - White Paper (spry074.pdf, 81 KB)
    31 Oct 2005 Download
  • A New Audio File Format for Low-Cost, High-Fidelity, Portable Audio Amplifiers (spry076.pdf, 316 KB)
    26 Oct 2005 Download

News Releases & Authored Articles

News Releases

Date Headline
05 Mar 2008 Texas Instruments new audio processor with digital output brings greater performance for higher fidelity in consumer audio
25 Feb 2008 Hear the difference with the industry's first closed-loop, digital-input class-D amplifier from TI
09 Jan 2007 TI Tunes in to Digital TV and MP3 Player Docking Station Markets with New Audio Processors
13 Dec 2006 TI's DirectPath™ Amplifier Delivers Industry's Highest Audio Performance and Lowest Quiescent Current for Cell Phones and Portable Audio Players

Authored Articles

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