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TLV320AIC3104-Q1: AD采样数据有偏置

Part Number: TLV320AIC3104-Q1

您好,我们在AIC3104 linein口上进行采样,输入为500Hz正弦,通过DSP读入后的3104采样数据有偏置,中心不是在0附近,请问AIC3104内部采样是否有偏置,有的话如何去掉偏置使数据中心在0附过,谢谢。