AmplifierCircuits

Features: Input multiplexer Three stereo and one mono inputs Selectable input gain for optimal  adaptation to different sources Volume control in 0.3db steps including gain  up to 20dB Zero crossing mute and direct mute Pause detector with programmable threshold Soft mute controlled by software or hardware  PIN Bass and treble control Four speaker attenuators Four independent speakers control in  1.25dB steps for balance and fader  facilities Independent mute function All functions programmable via serial I2C bus  Description The TDA7348 is an upgrade of the TDA7318  audioprocessor.  Thanks to the used BIPOLAR/CMOS technology,  very low distortion, low noise and DC-stepping  are obtained. Due to a highly linear signal  processing, using CMOS-switching techniques   instead of standard bipolar multipliers, very low  distortion and very low noise are obtained Several new features like softmute, zero-...