MOSA
MS6714
4 Stereo Inputs / 2 Channels Output Audio Processor
4 Stereo Inputs and 2 Channels Output
Volume, Tone, Balance, Loudness and
Selectable Input Gain
FEATURES
‧Operation
range : 2.7V~5V
‧4
stereo inputs with selectable input gain
‧2
independent speaker controls for balance
‧Tone
controls (treble and bass)
‧Loudness
and independent mute function
‧Volume
control in 1.25 dB/step
‧I
2
C interface
‧Components
less and good PSRR
‧Housed
in SOP28, SSOP28 package
APPLICATIONS
‧Portable
audio device
‧Car
stereo audio
‧Hi-Fi
audio system
‧Cross-reference:
PT2314
DESCRIPTION
The MS6714 is a 4 stereo inputs/2-channel outputs digital control audio processor for the low voltage operation.
Volume, tone (bass and treble), and balance (left/right) processor are incorporated into a single chip. The MS6714 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 I
2
C 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
18
LIN LOUD_L BOUT_L BIN_L
17
12
20
19
TREB_L
3
R
B
Mute
LIN1
LIN2
LIN3
LIN4
16
15
14
13
Volume &
Londness
Input
Selector
& Gain
Control
Volume &
Londness
24 OUT_L
Bass
Treble
Speaker
ATT
27
Serial Bus Decoder and Latches
RIN4
RIN3
RIN2
RIN1
8
9
10
11
SCL
26
SDA
25
DGND
Speaker
ATT
Bass
Treble
23
OUT_R
Mute
R
B
Supply
1
2
28
6
5
7
22
21
4
TREB_R
AVDD AGND REF ROUT
RIN LOUD_R BOUT_R BIN_R
REV1.0
1
www.mosanalog.com
MOSA [ MOSA ELECTRONICS ]
