3 Stereo Inputs and 4-Channel Outputs
Volume, Balance, Fader and Selectable Input Gain
Datasheet
SSOP20
Block
Diagram
Application
Circuit
Features
¡EOperation range : 2.7V~6.5V
¡E3 stereo inputs with selectable input gain
¡E4 independent speaker controls for fader and balance
¡EIndependent mute function
¡EVolume control in 1.25 dB/step
¡EI2C interface
¡EComponents less and good PSRR
¡EHoused in SSOP20 packages
Application
¡EPortable audio device
¡EHi-Fi audio system
¡ECross-reference: MS6720
Description
The MS6720L 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
MS6720L 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.