MOSA
MS6260
Gain And Attenuation Volume Controller IC
Gain and Attenuation Volume Controller IC
One Set of Stereo Input, Low voltage
Gain and Attenuation 15~-79dB, Good PSRR
FEATURES
‧Operation
range: 2.7V~6.5V
‧Low
power consumption
‧Gain/Attenuation:
15dB to –79dB at 1dB/step
‧Good
PSRR and low pop noise
‧Housed
in 10 pin MSOP package
‧I
2
C interface
APPLICATIONS
‧Multimedia
system
‧Hi-Fi
audio system
‧MP3,
PDA
DESCRIPTION
The MS6260 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 MS6260 provide an I
2
C control interface with gain / attenuation
range of 15dB to –79dB, 1dB/step. The excellent power supply ripple reject is a good for audio system. The initial
condition is set to be maximum attenuation –79dB and mute on mode when power on.
BLOCK DIAGRAM
Gain0~15dB
Attenuation
0~-79dB
L-IN
1dB/ Step
-1dB/ Step
-10dB/ Step
L- OUT
Serial Bus Decoder and Latches
Mute
Control
R-IN
1dB/ Step
Gain0~15dB
-1dB/ Step
-10dB/ Step
REF
R- OUT
Attenuation
0~-79dB
I
2
C Interface
Reference
Circuit
SDA
SCL
Vref
REV 3
1
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