wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 83

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

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Pre-Production
OUTPUT MIXER CONTROL
The Output Mixer volume controls are described in Table 49 for the Left Channel and Table 50 for
the Right Channel. The gain of each of analogue input paths may be controlled independently in the
range described in Table 51. The DAC input levels may be controlled by the DAC digital volume
control - see “Digital to Analogue Converter (DAC)” for further details of this control.
Table 49 Left Output Mixer (LOMIX) Volume Control
R45 (2Dh)
R49 (31h)
R45 (2Dh)
R47 (2Fh)
R45 (2Dh)
R47 (2Fh)
R45 (2Dh)
R47 (2Fh)
R45 (2Dh)
R49 (31h)
R45 (2Dh)
R49 (31h)
R45 (2Dh)
REGISTER
ADDRESS
BIT
8:6
8:6
5:3
2:0
5:3
2:0
5
4
3
2
7
6
0
LRI3LO
LRI3LOVOL
[2:0]
LLI3LO
LLI3LOVOL
[2:0]
LR12LO
LR12LOVOL
[2:0]
LL12LO
LL12LOVOL
[2:0]
LRBLO
LRBLOVOL
[2:0]
LLBLO
LLBLOVOL
[2:0]
LDLO
LABEL
DEFAULT
0b
000b
0b
000b
0
000b
0b
000b
0b
000b
0b
000b
0b
0 = Mute
1 = Un-mute
(See Table 51 for Volume Range)
0 = Mute
1 = Un-mute
(See Table 51 for Volume Range)
RIN12 PGA Output to LOMIX Mute
0 = Mute
1 = Un-mute
RIN12 PGA Output to LOMIX Volume
(See Table 51 for Volume Range)
0 = Mute
1 = Un-mute
(See Table 51 for Volume Range)
AINRMUX Output (Right ADC bypass)
to LOMIX Mute
0 = Mute
1 = Un-mute
to LOMIX Volume
(See Table 51 for Volume Range)
to LOMIX Mute
0 = Mute
1 = Un-mute
to LOMIX Volume
(See Table 51 for Volume Range)
0 = Mute
1 = Un-mute
Note: LDLO must be muted when
LDSPK=1
RIN3 to LOMIX Mute
RIN3 to LOMIX Volume
LIN3 to LOMIX Mute
LIN3 to LOMIX Volume
LIN12 PGA Output to LOMIX Mute
LIN12 PGA Output to LOMIX Volume
AINRMUX Output (Right ADC bypass)
AINLMUX Output (Left ADC bypass)
AINLMUX Output (Left ADC bypass)
Left DAC to LOMIX Mute
DESCRIPTION
PP, April 2009, Rev 3.0
WM8400
83