MOSA
MS6258
Gain And Attenuation Volume Controller IC
Gain and Attenuation Volume Controller IC
4 Sets 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
‧Good
PSRR and low pop noise
‧I
2
C interface
‧Housed
in 16 pin SOP, SSOP package
APPLICATIONS
‧Multimedia
system
‧Hi-Fi
audio system
‧MP3,
PDA
‧LCD
Monitor
DESCRIPTION
The MS6258 is a stereo audio volume controller IC with 4 sets of stereo input. It uses CMOS technology specially for
the low voltage application with low noise, rail-to-rail output. The MS6258 provide an I
2
C 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 on.
PIN CONFIGURATION
Symbol
A.O.
L-IN4
L-IN3
L-IN2
L-IN1
L-OUT
V
SS
SDA
SCL
V
DD
R-OUT
R-IN1
R-IN2
R-IN3
R-IN4
V
REF
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
th
Description
Address option *
4 left channel input
3
rd
left channel input
2 left channel input
1
st
left channel input
Left channel output
Ground
I
2
C data input
I
2
C clock input
Positive supply voltage
Right channel output
1
st
right channel input
2
nd
right channel input
3
rd
right channel input
4
th
right channel input
Reference voltage = 1/2V
DD
SDA
8
9
SCL
V
SS
7
10 V
DD
L-OUT
6
11 R-OUT
L-IN1
5
L-IN2
4
L-IN3
3
14 R-IN3
nd
A.O.
1
16 V
REF
15 R-IN4
L-IN4
2
MS6258
MS6258
13 R-IN2
12 R-IN1
Note: 1. Pin 1 is set to Lo or open , the address code is 88H (10001000B).
2. Pin 1 is set to Hi , the address code is 8CH (10001100B).
3. The V
REF
connects a capacitor to Vss.
REV 1
1
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