Micro-Pot 2-Channel 78 DB Audio Attenuator With Mute

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 exhibited by its ability to change attenuation levels without audible clicks or pops. In addition, the 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 enables the data input Registers while the Clock line provides system Timing Its DATA pin receives serial data on the rising edge of each Clock pulse, allowing the desired attenuation setting to be selected. By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM1972M Texas Instruments Micro-Pot 2-Channel 78 dB Audio Attenuator with Mute 20-SOIC 0 to 70
LM1972MX/NOPB Texas Instruments Micro-Pot 2-Channel 78 dB Audio Attenuator with Mute 20-SOIC 0 to 70
LM1972M/NOPB Texas Instruments Micro-Pot 2-Channel 78 dB Audio Attenuator with Mute 20-SOIC 0 to 70
LM1972 's PackagesLM1972 's pdf datasheet
LM1972M SOIC
LM1972MX SOIC




LM1972 Pinout, Pinouts
LM1972 pinout,Pin out
This is one package pinout of LM1972,If you need more pinouts please download LM1972's pdf datasheet.

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