AD1819A_15 Datasheet, PDF (14/28 Pages) Analog Devices – AC 97 SoundPort Codec

AD1819A
CD Volume (Index 12h)
Reg
Num
12h
Name
CD Volume
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5
D4
D3 D2
D1
D0 Default
CVM X
X LCV4 LCV3 LCV2 LCV1 LCV0 X
X
X
RCV4 RCV3 RCV2 RCV1 RCV0 8808h
RCV [4:0]
LCV [4:0]
CVM
Right CD Volume. Allows setting the CD right channel attenuator in 32 steps. The LSB represents
1.5 dB, and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
Left CD Volume. Allows setting the CD left channel attenuator in 32 steps. The LSB represents
1.5 dB, and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
CD Volume Mute. When this bit is set to “1,” the channel is muted.
Video Volume (Index 14h)
OBSOLETE Reg
Num
14h
Name
Video Volume
D15 D14 D13 D12 D11 D10 D9
D8 D7 D6 D5 D4
D3
D2
D1
D0 Default
VM X
X LVV4 LVV3 LVV2 LVV1 LVV0 X
X
X RVV4 RVV3 RVV2 RVV1 RVV0 8808h
RVV [4:0]
LVV [4:0]
VM
Right Video Volume. Allows setting the Video right channel attenuator in 32 steps. The LSB represents
1.5 dB, and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
Left Video Volume. Allows setting the Video left channel attenuator in 32 steps. The LSB represents
1.5 dB, and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
Video Mute. When this bit is set to “1,” the channel is muted.
Aux Volume (Index 16h)
Reg
Num
16h
Name
Aux Volume
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5
D4
D3
D2
D1
D0 Default
AM
X
X LAV4 LAV3 LAV2 LAV1 LAV0 X
X
X
RAV4 RAV3 RAV2 RAV1 RAV0 8808h
RAV [4:0]
LAV [4:0]
Right Aux Volume. Allows setting the Aux right channel attenuator in 32 steps. The LSB represents
1.5 dB, and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
Left Aux Volume. Allows setting the Aux left channel attenuator in 32 steps. The LSB represents
1.5 dB, and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
AM
Aux Mute. When this bit is set to “1,” the channel is muted.
PCM Out Volume (Index 18h)
Reg
Num
18h
Name
PCM Out Volume
D15 D14 D13 D12 D11 D10 D9
D8 D7 D6 D5
D4
D3
D2
D1
D0 Default
OM X
X LOV4 LOV3 LOV2 LOV1 LOV0 X
X
X ROV4 ROV3 ROV2 ROV1 ROV0 8808h
ROV [4:0]
LOV [4:0]
OM
Right PCM Out Volume. Allows setting the PCM right channel attenuator in 32 steps. The LSB represents
1.5 dB, and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
Left PCM Out Volume. Allows setting the PCM left channel attenuator in 32 steps. The LSB represents
1.5 dB, and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
PCM Out Volume Mute. When this bit is set to “1,” the channel is muted.
Volume Table (Index 0Ch to 18h)
Mute
x4 . . . x0
Function
0
00000
+12 dB Gain
0
01000
0 dB Gain
0
11111
–34.5 dB Gain
1
xxxxx
–_∞ dB Gain
–14–
REV. 0