基于FPGA的音频芯片输出控制设计

摘要

To transfer the digital audio signal to the analogue audio one,the FPGA was programmed to control the wm8731 decoder using VHDL.The timing of the digital audio data input of the wm8371 decoder and the timing of the control signal were studied to control the output of the analogue audio signal.The experimental result indicates that the FPGA can enable the wm8731 to transfer the digital audio signal to the analogue one.%研究使用VHDL对FPGA进行编程并控制wm8731音频解码芯片将数字音频信号转换为模拟音频信号输出.通过对wm8731芯片的数字音频信号输入时序和控制信号时序的研究,达到对wm8731芯片进行控制及模拟音频信号输出的控制.实验结果表明,本设计可以达到控制wm8731进行音频信号的数模转换的功能.