一种大功率数字音频系统设计

摘要

音频编解码芯片WM8731因其高性能、低功耗等优点在很多音频产品中得到了广泛应用。本文提出了WM8731与FPGA的音频编解码系统，并嵌入大功率D类功放技术作为音频系统的功率放大应用，使得本系统效率高，体积小，音质高，性能显著。%Audio codec WM8731 is widely applied in audio products due to its high quality and low power consumption , its audio codec system based on FPGA is introduced in this thesis .The technology of class D amplifier is applied in the audio system , thus the system has the advantages of high efficiency , small volume, better audio quality and significant performance .