MOSA
MS6266
6-Channel Electronic Volume Controller
6-Channel Volume Controller
Gain and Attenuation 16~-79dB
Low voltage, High Channel Separation
FEATURES
‧Operation
range: 2.7V~5.5V
‧Low
power consumption
‧Gain/Attenuation:
16dB to –79dB at 1dB/step
‧Good
PSRR
‧I
2
C interface
‧Pop
noise free
‧Housed
in SSOP20, SOP20
APPLICATIONS
‧Multimedia
system
‧Hi-Fi
audio system
‧Car
audio
‧Portable
audio equipment
DESCRIPTION
The MS6266 is a 6-channel volume controller IC with gain and attenuation. It uses CMOS technology specially for the
low voltage application with low noise, rail-to-rail output. The MS6266 provide an I
2
C control interface with gain /
attenuation range of 16dB to -79dB, 1dB/step. The initial condition is set to be maximum attenuation –79dB and mute
on mode when the power is on.
PIN CONFIGURATION
Symbol
IN1
IN2
IN3
AC2
DGND
SCL
SDA
IN4
IN5
IN6
OUT6
OUT5
OUT4
GND
V
REF
V
DD
AC1
OUT3
OUT2
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Description
1
st
channel input
2
nd
channel input
3
rd
channel input
Address code 2
Digital Ground
I
2
C clock input
I
2
C data input
4
th
channel input
5 channel input
6 channel input
6
th
channel output
5
th
channel output
4
th
channel output
Analog ground
Reference voltage = 1/2V
DD
Positive supply voltage
Address code 1
3
rd
channel output
2
nd
channel output
th
th
IN1
1
IN2
2
IN3
3
AC2
4
DGND
5
SCL
6
SDA
7
IN4
8
IN5
9
IN6
10
20
OUT1
19
OUT2
18
OUT3
17
AC1
MS6266
16
V
DD
15
V
REF
14
GND
13
OUT4
12
OUT5
11
OUT6
OUT1
20
1
st
channel output
Note: 1. The address codes have four types, selected by AC1and AC2.
REV1
1
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