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AUDIO CODEC 可以获得模拟输入信号的频率吗?

Other Parts Discussed in Thread: PCM3070

你好,

   我在设计一个电路,需要得到输入的模拟信号的频率,有300Hz的,1500Hz的还有2300Hz的,这几个信号可以通过AUDIO CODEC 的ADC,然后求得输入信号的频率是多少吗? 应该怎样求得?用TI的哪款芯片可以实现该功能?

谢谢!

    

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