Audio Dock: Portable

Design Considerations
Selection and Solution Guides
Tools and Software

Product Bulletin & White Papers
News Releases & Authored Articles
Similar End-Equipment Solutions

Application Notes
Reference Designs
Support & Community

Block Diagram

Design Considerations

The Audio Dock: Portable speaker system is powered by batteries, an AC adapter, or USB connection. Using a highly efficient Class-D amplifier extends battery runtime and requires no costly heat sink. 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. The system will charge LiION batteries with protection and provide overall power management needed in a portable performance system.

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
TMS320DM6441 Power Consumption Summary Application Report (spraau3.htm, 9 KB)
08 Apr 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
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

Designing class-D audio amplifiers into portable applications - Nick Holland, Greg Hupp & Andy Liang, Texas Instruments, Planet Analog
28 Jun 2006 View Article

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