Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2008
Session Number:P1
Session:
Number:P1-12
Design of Mobile Digital Stereo Amplifier System using TPA2008D2 & Secondary Battery
Joon-Hoon Park, Min-Kyu Park, Ki-Seo Lee, Young-Gyu Choi,
pp.-
Publication Date:2008/7/7
Online ISSN:2188-5079
Summary:
Existing audio power amplifiers do not satisfy the requirement of recent digital products such as PMP and MP3 that requires mobility and miniaturization, because of large volume due to high power, and inconvenient transfer to direct connection back of power supply. To solve these problems, we designed class-D digital stereo amplifier to use TI 's TPA2008D2, which power dissipation and low caloric value. The second lithium ion polymer battery applied and implemented low electric power and high effectiveness mobile digital audio system. Designed digital audio system can fill up the battery through power adapter and USB port. We passed through efficient circuit pattern design process and analysis experiment about inside noise for stable digital audio system design. Also, we could improve the reliability of product development by using 3D digital amplifier circuit, which is applicable to mobile digital audio system design.