MS6266
MOSA
6-Channel Electronic Volume Controller
6-Channel Volume Controller
Gain and Attenuation 16~-79dB
Low voltage, High Channel Separation
FEATURES
APPLICATIONS
‧Operation range: 2.7V~5.5V
‧Low power consumption
‧Gain/Attenuation: 16dB to –79dB at 1dB/step
‧Good PSRR
‧Multimedia system
‧Hi-Fi audio system
‧Car audio
‧Portable audio equipment
‧I2C interface
‧Pop noise free
‧Housed in SSOP20, SOP20
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 I2C 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
Pin
1
Description
1st channel input
2nd channel input
3rd channel input
Address code 2
IN2
2
IN3
3
AC2
DGND
SCL
4
IN1 1
IN2 2
20 OUT1
19 OUT2
18 OUT3
17 AC1
5
Digital Ground
I2C clock input
6
SDA
IN4
7
I2C data input
IN3 3
8
4th channel input
5th channel input
6th channel input
6th channel output
5th channel output
4th channel output
Analog ground
AC2 4
DGND 5
SCL 6
SDA 7
IN4 8
IN5
9
16 VDD
IN6
10
11
12
13
14
15
16
17
18
19
20
MS6266
15 VREF
OUT6
OUT5
OUT4
GND
VREF
VDD
14 GND
13 OUT4
12 OUT5
11 OUT6
IN5 9
Reference voltage = 1/2VDD
Positive supply voltage
Address code 1
3rd channel output
2nd channel output
1st channel output
IN6 10
AC1
OUT3
OUT2
OUT1
Note: 1. The address codes have four types, selected by AC1and AC2.
REV1
1
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