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MS6257 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers

Part # MS6257
Description  Gain and Attenuation Volume Controller IC One Set of Stereo Input, Low voltage Gain and Attenuation 15~-79dB
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MOSA
MS6257
GAIN AND ATTENUATION VOLUME CONTROLLER IC
REV 1
1
www.mosanalog.com.tw
Gain and Attenuation Volume Controller IC
One Set of Stereo Input, Low voltage
Gain and Attenuation 15~-79dB
FEATURES
‧Operation range: 2.7V~5.5V
‧Low power consumption
‧Gain/Attenuation: 15dB to –79dB at 1dB/step
‧Housed in 8 pin SOP package
‧I
2C interface
APPLICATIONS
‧Multimedia system
‧Hi-Fi audio system
‧MP3, PDA
‧Cross-reference PT2257, PT2259
DESCRIPTION
The MS6257 is the stereo audio volume controller IC. It uses CMOS technology specially for the low voltage
application with low noise, rail-to-rail output. The MS6257 provide an I
2C control interface with gain / attenuation
range of 15dB to –79dB, 1dB/step. The initial condition is set to be maximum attenuation –79dB and mute on mode
when the power is up.
PIN CONFIGURATION
Symbol
Pin
Description
L-IN
1
Left channel input
L-OUT
2
Left channel output
VSS
3
Ground
SDA
4
I
2C data input
SCL
5
I
2C clock input
VDD
6
Positive supply voltage
R-OUT
7
Right channel output
R-IN
8
Right channel input
7
6
5
8
2
3
4
1
MS6257
R-IN
R-OUT
VDD
SCL
L-IN
L-OUT
VSS
SDA
BLOCK DIAGRAM
R-IN
REF
SDA
SCL
R-OUT
L-OUT
I2C Interface
-10dB/STEP
-1dB/STEP
1dB/STEP
Serial Bus Decoder and Latches
Reference
Circuit
1dB/STEP
-1dB/STEP
-10dB/STEP
L-IN


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