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TAS5508C噪声问题,

Other Parts Discussed in Thread: PCM1808

信号从SIND1输入,在默认的输出CH1和CH2后面接上5342(SE MODEL)的 A 和B端口,没有噪声。然后把SIND1信号在INPUT MIXER寄存器里映射到DAP8,接5342(BTL)后有很大的噪声,但是只要加上信号,又听不到噪声了,跟音量大小有关系,音量开得越大,噪声也越大。请问下这是什么原因,是哪里设置的不对么?