一款数字功率放大器的设计  

Design for a New Kind of Digital Audio Power Amplifier

作　　者：叶林[1] 罗智祥[1] 

机构地区：[1]中山职业技术学院,广东中山528404

出　　处：《山西电子技术》2009年第6期12-13,28,共3页Shanxi Electronic Technology

摘　　要：设计了一款基于DDX(功率驱动技术、既具有USB数字音频接口又具有模拟音频接口的数字音频功率放大器UPA001。DDX(技术的引入使UPA001具有极高的效率和极低的失真。数字音频接口和数字处理技术的引入,使音频信号的传输和处理过程不会产生附加的失真和噪声。模拟音频接口和模拟处理技术的引入,使具有模拟音频输出接口的设备可以直接使用UPA001。In this paper, a new kind of digital audio power amplifier on DDX is proposed and tested, which is UPA001 not only with a USB digital audio interface and but an analog audio interface. The introduction of DDX technology ensure the high efficiency and low distortion of UPA001, the introduction of digital audio interface and processing technology enable the audio signal transmission and processing without additional distortion and noise, and because of the introduction of technology of analog audio interface and processing, the equipment with output interface of analog audio can directly connect UPA001.

关 键 词：数字音频功放 数字音频接口 失真 

分 类 号：TN74[电子电信—电路与系统]