AD1819B
MMM
MMV5 . . . MMV0
Function
0
0
0
1
00 0000
01 1111
1x xxxx
xx xxxx
0 dB Attenuation
–46.5 dB Attenuation
–46.5 dB Attenuation
dB Attenuation
∞
PC Beep (Index 0Ah)
Reg
Num
Name
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Default
0Ah
PC Beep Volume
PCM
X
X
X
X
X
X
X
X
X
X
PCV3
PCV2
PCV1 PCV0
X
8000h
PCV [3:0]
PC Beep Volume Control. The least significant bit represents 3 dB attenuation. This register controls the output
from 0 dB to a maximum attenuation of –45 dB. The PC Beep is routed to the Left and Right Line outputs even
when AD1819B is in a RESET State. This is so that Power-On Self Test (POST) codes can be heard by the user
in case of a hardware problem with the PC.
PCM
PC Beep Mute. When this bit is set to “1,” the channel is muted.
PCM
PCV3 . . . PCV0
Function
0
0
1
0000
1111
xxxx
0 dB Attenuation
–45 dB Attenuation
–
dB Attenuation
∞
Phone Volume (Index 0Ch)
Reg
Num
Name
D15
PHM
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Default
0Ch
Phone Volume
X
X
X
X
X
X
X
X
X
X
PHV4
PHV3
PHV2
PHV1
PHV0 8008h
PHV [4:0]
PHM
Phone Volume. Allows setting the Phone Volume 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.
Phone Mute. When this bit is set to “1,” the channel is muted.
Mic Volume (Index 0Eh)
Reg
Name
Num
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Default
0Eh
Mic Volume
MCM
X
X
X
X
X
X
X
X
M20
X
MCV4
MCV3
MCV2
MCV1
MCV0
8008h
MCV [4:0]
M20
Mic Volume Gain. Allows setting the Mic Volume 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.
Microphone +20 dB Gain Block
0 = Disabled; Gain = 0 dB.
1 = Enabled; Gain = +20 dB.
MCM
Mic Mute. When this bit is set to “1,” the channel is muted.
Line In Volume (Index 10h)
Reg
Num
Name
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Default
10h
LINE_IN Volume
LM
X
X
LLV4
LLV3
LLV2
LLV1
LLV0
X
X
X
RLV4
RLV3
RLV2 RLV1 RLV0 8808h
RLV [4:0]
LLV [4:0]
LM
Right Line In Volume. Allows setting the Line In 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 Line In Volume. Allows setting the Line In 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.
Line In Mute. When this bit is set to “1,” the channel is muted.
REV. 0
–13–
ADI [ ADI ]
