MS6712 Datasheet, PDF (1/17 Pages) MOSA ELECTRONICS – 4 Stereo Inputs and 4-Channel Outputs Volume, Tone, Balance, Fader, Loudness, and Selectable Input Gain

MOSA
MS6712
4 Stereo Inputs / 4-Channel Outputs Audio Processor
4 Stereo Inputs and 4-Channel Outputs
Volume, Tone, Balance, Fader, Loudness,
and Selectable Input Gain
FEATURES
•Operation range : 2.7V~5V
•4 stereo inputs with selectable input gain
•4 independent speaker controls for fader and balance
•Tone controls (treble and bass) and loudness function
•Independent mute function
•Volume control in 1.25 dB/step
•I²C interface
•Components less and good PSRR
•Housed in SOP32 packages
APPLICATIONS
•Portable audio device
•Car stereo audio
•Hi-Fi audio system
•Cross-reference:
PT2312
DESCRIPTION
The MS6712 is a 4 stereo inputs/4-channel outputs digital control audio processor for the low voltage operation.
Volume, tone (bass and treble), balance (left/right), and fader (front/rear) processor are incorporated into a single chip.
The MS6712 also has the loudness function and selectable input gain. These functions can be built a Hi-Fi audio
system easily. 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, the bass
and the treble are 0dB.
BLOCK DIAGRAM
LOUT
21
LIN LOUD_L BOUT_L BIN_L
20 15
23
22
TREB_L
5
LIN1 ¹⁹
LIN2 ¹⁸
LIN3 ¹⁷
LIN4 ¹⁶
RIN4 ¹⁰
RIN3 ¹¹
RIN2 ¹²
RIN1 ¹³
Input
Selector
&Gain
Control
Volume &
Londness
R_B
Bass
Treble
Serial Bus Decoder and Latches
Volume &
Londness
Bass
Treble
Supply
R_B
REV1.0
2
3
1
8
AVDD AGND REF ROUT
7
9
25
24
RIN LOUD_R BOUT_R BIN_R
1
6
TREB_R
Speaker
ATT
Mute
Speaker
ATT
Mute
29
OUT_LF
27 _{OUT_LR}
32 _SCL
31
SDA
30 _DGND
Speaker
ATT
Mute
Speaker
ATT
Mute
28
OUT_RF
26 _{OUT_RR}
www.mosanalog.com