TPA2008D2 및 2차전지를 이용한 모바일 디지털 오디오 시스템 구현

다국어 초록 (Multilingual Abstract)

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 company'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.