LM1971 Datasheet - National Semiconductor

LM1971 Digitally Controlled 62dB Audio Attenuator

The LM1971 is a digitally controlled single channel audio attenuator fabricated on a CMOS process. Attenuation is variable in 1 dB steps from 0 dB to *62 dB. A mute function disconnects the input from the output, providing over 100 dB of attenuation. The performance of the device is exhibite.

LM1971 Features

* a low Total Harmonic Distortion (THD) of 0.0008%, and a Dynamic Range of 115 dB, making it suitable for digital audio needs. The LM1971 is available in both 8-pin plastic DIP or SO packages. The LM1971 is controlled by a TTL/CMOS compatible 3-wire serial digital interface. The active low LOAD line e

LM1971_NationalSemiconductor.pdf