MS6334/6335
MOSA
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
I2C data bytes description
Volume control
MSB
LSB
b0
Function
0
0
0
0
0
1
0
1
0
2-channel, 1.5dB/step
b4
b3
b2
b1
Left channel, 1.5dB/step
Right channel, 1.5dB/step
Gain / Attenuation bits
b4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
b3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
b2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
b1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
b0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Value (dB)
Mute
-39
Value (dB)
-16.5
-15
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
-37.5
-36
-13.5
-12
-34.5
-33
-10.5
-9
-31.5
-30
-7.5
-6
-28.5
-27
-4.5
-3
-25.5
-24
-1.5
0
-22.5
-21
+1.5
+3
-19.5
-18
+4.5
+6
Initial state: Mute
Power down mode
MSB
LSB
b0
Function
Power down mode selection
0
1
1
b4
b3
b2
b1
Power down bits
b4=1, Pull down CAP pin to ground (CAPGD)
b4=0, Set the voltage of CAP to middle of supply voltage (CAPGD)
b3=1, Enable OPAmp power down (OPAPD)
b3=0, Disable OPAmp power down (OPAPD)
b2=1, Enable DAC power down (DACPD)
b2=0, Disable DAC power down (DACPD)
b1=1, Enable headphone power down (HPPD)
b1=0, Disable headphone power down (HPPD)
b0=1, Enable DAC mute (DACM)
b0=0, Disable DAC mute (DACM)
Initial state: b0=b1=b2=b3=b4=1
REV 1.0
9
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MOSA [ MOSA ELECTRONICS ]
