NJU72342

NJU72342 4 Channels Electronic Volume GENERAL DESCRIPTION The NJU72342 is a 4 channels I2C electronic volume IC with external mute controls. The NJU72342 has many characteristics that are useful in audio application, such as low noise, low distortion, and wide operating voltage range. All functions are controlled by I2C BUS interface. PACKAGE OUTLINE FEATURES  Operating Voltage  Input Gain  Volume  Low Distortion  Low Noise  External Mute  Zero Cross Detection  I2C BUS Control  CMOS Technology  Small Package   BLOCK DIAGRAM V+=4.5V  14.5V 0dB/+3dB/+6dB/+9dB 0~-95dB/Mute ,1dBstep 0.002% typ. 2.0µVrms typ. SSOP14 SSOP14 PIN CONFIGURATION IN1 IN2 IN3 IN4 MUTE SDA SCL I2C OUT1 OUT2 OUT3 OUT4 V r ef Zero Cross Detection No. Symbol 1 IN1 2 IN2 3 IN3 4 IN4 5 MUTE 6 SDA 7 SCL 8 V+ 9 VREF 10 GND 11 OUT4 12 OUT3 13 OUT2 14 OUT1 Function Input Terminal 1 Input Terminal 2 Input Terminal 3 Input Terminal 4 Mute Terminal I2C Data I...