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AIC23B数字接口协议



期待解惑。此前在用DM642做音频的数字滤波时,滤波后的结果在通过AIC23B输出时总是有很大的杂声,这几天偶然将之前的AIC23B的接口协议修改为IIS Mode后,输出端的杂声就没了,滤波效果也很明显。这让我很疑惑,就技术文档所说,DSP模式应该是AIC23B和DSP无缝链接的一种接口协议啊,并且网上各个demo中都是用的DSP Mode,请教各位大神解惑,菜鸟在此拜谢