NS LM1971MX

音量控制通信系统1SPI4.5V ~ 12V

Overview

The LM1971MX 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 LM1971MX 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.

Features

Overture™ Series
With 8-SOIC (0.154, 3.90mm Width) channels
operate temperature at the range of -40°C~85°C TA
consumer IC type: CONSUMER CIRCUIT

Surface Mount Mounting Type

Applications

There are a lot of Texas Instruments
LM1971MX Audio Special Purpose applications.

• Musical Instruments
• Recording Systems
• High-End Audio/Sound Card for PC
• Replacement of DIR1703
• Other Applications Requiring S/PDIF Receiver
• Audio Differential Line Drivers
• Audio Mix Consoles
• Distribution Amplifiers
• Graphic and P arametric Equalizers
• Dynamic Range Processors