摘要
数字功放是目前音频功放发展的主流。简要介绍数字功率放大器的原理与结构,并介绍了德州仪器公司(TI)音频IC的性能与用途,给出了一种基于TI数字音频IC研制高保真音频数字功放的设计方案和核心部分的电路原理图。通过调试自制功放电路板,该设计能够获得高音质性价比。
Digitalize is the major trend of the development in the field of audio power amplifiers. This paper briefly introducs the principles and frame of digital amplifiers,as well as the advantages and usages of the audio ICs manufactured by Texas Instrument Corporation （TI）.Meanwhile, this paper points out a way to use these ICs to design a digital amplifier, explains with the schematic diagrams of the key parts,also dissertates the outstanding performance verified by board testing, compared with price.
出处
《电子设计工程》
2009年第1期98-100,共3页
Electronic Design Engineering
