Audio Market

Portable Media Devices Market Overview

With the continuing explosion of portable consumer audio devices ranging from MP3 players to smart phones with integrated audio capability, handheld GPS systems and many others, the required integrated audio feature set continues to challenge end-equipment manufacturers as well as IC designers. Being portable typically implies that the devices are battery-operated and therefore system power consumption is a key concern. Portable audio ICs for the consumer audio market include integrated audio codecs or audio ADCs and DACs for conversion between analog signals and digital data, headphone or speaker drivers for earpieces, headphones or built-in speakers, programmable DSPs for encoding/decoding compressed data in such formats as MP3, WMA or AAC, microcontrollers for handling system-level control and user interface functions, and wireless transceivers for transmission/reception of data over RF

Portable Audio Block Diagram

System Block Diagram Function	Recommended Devices	System Block Diagram Function	Recommended Devices
Audio CODEC	view	Stereo USB DACs / DACs	view
Class AB Headphone	view	Touch Screen Controller w/ Audio	view
Class AB Speaker Amps	view	USB Codecs	view
Class D Speaker Amps	view	Touch Screen Controller w/ Audio	view
DSP	view	Voiceband CODECs	view

White Papers

Optimizing Power Consumption in DSP Designs Whitepaper (spry089.htm, 8 KB)
25 Oct 2006 Abstract

News Releases

TI's DirectPath™ Amplifier Delivers Industry's Highest Audio Performance and Lowest Quiescent Current for Cell Phones and Portable Audio Players
13 Dec 2006 View

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

Video Product Guide

TPA6130A2 (sprc385.wmv, 6.3 MB)
29 MAR 2007 Download

End Equipments

TLV320AIC3x Low Power Stereo CODEC

With integrated sound processing, the three new devices give designers the ease and flexibility to add features like 3D sound, which provides for outstanding effects from small speakers The low-power CODECs extend the run-time of battery-powered products such as cellular handsets, MP3 players with record functionality and digital still cameras, and they work well with multimedia devices and applications processors.

New DSP Products

TMS320C55x™ DSPs

The TMS320C5506, TMS320C5503, TMS320C5507 and TMS320C5509A DSPs, are the industry’s most power-efficient DSPs and feature ultra-low stand-by power. Advanced power management techniques automatically power down inactive peripherals, memory and core functional units increasing battery life. Also included are the OMAP™ devices with low-power, real-time signal processing coupled with the command and control functionality of an ARM.

Audio