GENERAL DESCRIPTION
The TDA8421 is a monolithic bipolar integrated stereo sound circuit with a loudspeaker channel (CH1) and a headphone channel (CH2), digital controlled via the I2C bus, for application in hi-fi audio and television sound.

FEATUREs
• Input selector
• Mode selector
• Loudspeaker channel (CH1); with volume control, balance control and mute
• Headphone channel (CH2); with volume control, balance control and mute
• Pseudo stereo and spatial function
• Bass and treble control
• Electrostatic discharge protection diodes