2 bass gain, 1 master volume control, 1 headphone volume control – Cirrus Logic CS43L22 User Manual
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DS792F2
51
CS43L22
Confidential Draft
3/4/10
7.18.2
Bass Gain
Sets the gain of the bass shelving filter.
7.19
Master Volume Control: MSTA (Address 20h) & MSTB (Address 21h)
7.19.1
Master Volume Control
Sets the volume of the signal out the DSP.
7.20
Headphone Volume Control: HPA (Address 22h) & HPB (Address 23h)
7.20.1
Headphone Volume Control
Sets the volume of the signal out the DAC.
TREB[3:0]
Gain Setting
0000
+12.0 dB
···
···
0111
+1.5 dB
1000
0 dB
1001
-1.5 dB
···
···
1111
-10.5 dB
Step Size:
1.5 dB
7
6
5
4
3
2
1
0
MSTxVOL7
MSTxVOL6
MSTxVOL5
MSTxVOL4
MSTxVOL3
MSTxVOL2
MSTxVOL1
MSTxVOL0
MSTxVOL[7:0]
Master Volume
0001 1000
+12.0 dB
···
···
0000 0000
0 dB
1111 1111
-0.5 dB
1111 1110
-1.0 dB
···
···
0011 0100
-102 dB
···
···
0001 1001
-102 dB
Step Size:
0.5 dB
7
6
5
4
3
2
1
0
HPxVOL7
HPxVOL6
HPxVOL5
HPxVOL4
HPxVOL3
HPxVOL2
HPxVOL1
HPxVOL0
HPxVOL[7:0]
Headphone Volume
0000 0000
0 dB
1111 1111
-0.5 dB
1111 1110
-1.0 dB
···
···
0011 0100
-96.0 dB
···
···
0000 0001
Muted
Step Size:
0.5 dB