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TAS5715频响问题

Other Parts Discussed in Thread: PCM1808, TAS5707

为什么我们买的DEMO板 在测试频响的时候只到6KHZ(-3DB),然后我们做的产品出来也是到6K,这是什么原因,我们做过一些测试,在进入PM1808之前的信号是到20K以上的,进了ADC,从5715出来后就只能到6K。