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例如：Fin=20MHz，SNR的典型值是70.9，那么这个Fin的噪声是多大呢？
您好，
ADS6149在Fin=20MHZ时的典型SNR是73.4dBFS。Fin的噪声应该是越少越准确，具体用的是哪款信号发生器，这个无法再查找确认。
