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音频低通滤波器设计

Other Parts Discussed in Thread: TLV272, OPA1678

想设计一个音频的DAC输出的滤波器,本身DAC输出的底噪为-80dBV左右,通过有源低通滤波器后,底噪要求能到-100dBV左右。-3dB处可以设置到10K左右