MOSA
MS6715
1 Stereo Input / 1 Stereo Output Audio Processor
1 Stereo Input and 1 Stereo Output
Volume, Tone, Balance, Loudness Function
FEATURES
•Operation
range : 2.7V~6.5V
•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
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
REV 3
1/16
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MOSA [ MOSA ELECTRONICS ]
