The LM1972 is a digitally controlled 2-channel 78dB audioattenuator fabricated on a CMOS process. Each channel hasattenuation steps of 0.5dB from 0dB–47.5dB, 1.0dB stepsfrom 48dB–78dB, with a mute function attenuating 104dB. Itslogarithmic attenuation curve can be customized through softwareto fit the desired application.
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