MS6720

MOSA MS6720 3 Stereo Inputs / 4-Channel Outputs Audio Processor 3 Stereo Inputs and 4-Channel Outputs Volume, Balance, Fader and Selectable Input Gain FEATURES Operation range : 2.7V ~ 6.5V 3 stereo inputs with selectable input gain 4 independent speaker controls for fader and balance Independent mute function Volume control in 1.25 dB/step I2C interface Components less and good PSRR Housed in SSOP20 packages APPLICATIONS Portable audio device Car stereo audio Hi-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. BLOCK DIAGRAM LOUT 13 LIN 12 Speaker ATT LIN1 LIN2 LIN3 11 10 9 RIN3 RIN2 RIN1 6 7 8 Input Selector &Gain Control Supply Volume Mute Speaker ATT Mute Serial Bus Decoder and Latches Volume Speaker ATT Mute Speaker ATT 231 5 AVDD AGND REF ROUT 4 RIN Mute 17 OUT_LF 15 OUT_LR 20 SCL 19 SDA 18 DGND 16 OUT_RF 14 OUT_RR REV 2 1/10 www.mosanalog.com MOSA MS6720 3 Stereo Inputs / 4-Channel Outputs Audio Processor PIN CON...