MOSA
MS6715
1 Stereo Input / 2 Channels Output Audio Processor
1 Stereo Input and 2 Channels Output
Volume, Tone, Balance, Loudness Function
FEATURES
‧Operation
range : 2.7V~5V
‧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 SOP20, SSOP20 package
APPLICATIONS
‧Portable
audio device
‧Hi-Fi
audio system
‧Cross-reference:
TDA7315, PT2315
DESCRIPTION
The MS6715 is a 1 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 MS6715 also
has the loudness function. 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 bass and the treble are 0dB.
BLOCK DIAGRAM
LOUD_L
9
BOUT_L BIN_L
13
12
TREB_L
4
R
B
Mute
LIN
11
Volume &
Londness
17
OUT_L
Bass
Treble
Speaker
ATT
20
Serial Bus Decoder and Latches
SCL
19
SDA
18
DGND
Speaker
ATT
RIN
6
Volume &
Londness
Bass
Treble
16
OUT_R
Mute
R
B
Supply
2
3
1
7
LOUD_R
15
14
5
TREB_R
AVDD AGND REF
BOUT_R BIN_R
REV1.0
1
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MOSA [ MOSA ELECTRONICS ]
