MOSA
Data bytes description
Function bits
MSB
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
0
1
1
0
0
1
1
0
0
1
1
1
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
A3
B3
A3
B3
A3
B3
A3
B3
A3
B3
A3
B3
A3
B3
0
1
1
A2
B2
A2
B2
A2
B2
A2
B2
A2
B2
A2
B2
A2
B2
0
0
0
A1
B1
A1
B1
A1
B1
A1
B1
A1
B1
A1
B1
A1
B1
0
0
0
LSB
A0
B0
A0
B0
A0
B0
A0
B0
A0
B0
A0
B0
A0
B0
1
1
0
MS6266
6-Channel Electronic Volume Controller
Function
6 channels, -1dB/step
6 channels, -10dB/step or +2dB/step
Channel 3, -1dB/step
Channel 3, -10dB/step or +2dB/step
Channel 4, -1dB/step
Channel 4, -10dB/step or +2dB/step
Channel 2, -1dB/step
Channel 2, -10dB/step or +2dB/step
Channel 5, -1dB/step
Channel 5, -10dB/step or +2dB/step
Channel 1, -1dB/step
Channel 1, -10dB/step or +2dB/step
Channel 6, -1dB/step
Channel 6, -10dB/step or +2dB/step
Power off preparation (pop noise free)
6 channels, mute On
6 channels, mute Off
Gain / Attenuation bits
A3
B3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
A2
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
A1
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
A0
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Gain / Attenuation value (dB)
A
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-
-
-
-
-
-
B
0
-10
-20
-30
-40
-50
-60
-70
+2
+4
+6
+8
+10
+12
+14
+16
1. Where Ax=-1dB/step, Bx=-10dB/step or +2dB/step, -10dB and +2dB should not be loaded at the same time.
2. The initial condition is set to be maximum attenuation –79dB and mute on mode when the power on.
3. The output will drop down to ground gradually when enable power off preparation.
4. Odd gain 2N-1= N*(+2dB/step) + (-1dB), where N = 1~8. Please reference to examples.
REV1
8
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MOSA [ MOSA ELECTRONICS ]
