3 Stereo Inputs and 4-Channel Outputs
Volume, Balance, Fader and Selectable Input Gain
Datasheet
Block
Diagram
Application
Circuit
Features
ˇEOperation range : 2.7V~6.5V
ˇE3 stereo inputs with selectable input gain
ˇE4 independent speaker controls for fader and balance
ˇEIndependent mute function
ˇEVolume control in 1.25 dB/step
ˇEI2C interface
ˇEComponents less and good PSRR
ˇEHoused in SSOP20 packages
Application
ˇEPortable audio device
ˇEHi-Fi audio system
Description
The MS6720 is a 3 stereo inputs/4-channel outputs digital
control audio processor for the low voltage operation. Volume, balance (left/right),
and fader (front/rear) processor are incorporated into a single chip. The
MS6720 also has selectable input gain. All functions are programmable via
the serial I2C bus. The default states of the chip as the power is on are:
the volume is -78.75dB, the stereo 4 is selected, all the speakers are mute
and the gains of the input stage are 0dB. The stereo 4 is connected internally,
but not available on pins.