LM1972N DIP20 μPot 2-Channel 78dB Audio Attenuator with Mute

Description

The LM1972 is a digitally controlled 2-channel 78dB audio attenuator fabricated on a CMOS process.

Each channel has attenuation steps of 0.5dB from 0dB–47.5dB, 1.0dB steps from 48dB–78dB, with a

mute function attenuating 104dB. Its logarithmic attenuation curve can be customized through

software to fit the desired application.

FEATURES

• 3-Wire Serial Interface
• Daisy-Chain Capability
• 104dB Mute Attenuation
• Pop and Click Free Attenuation Changes