WM8955L
Product Preview
REGISTER
ADDRESS
BIT
LABEL
LD2RO
DEFAULT
DESCRIPTION
Left DAC to Right Mixer
R36 (24h)
8
0
0
Right Mixer (1)
0 = Disable (Mute)
1 = Enable Path
7
MI2RO
MONOIN Signal to Right Mixer
0 = Disable (Mute)
1 = Enable Path
6:4
MI2ROVOL
101
MONOIN Signal to Right Mixer Volume
000 = +6dB
(-9dB)
… (3dB steps)
111 = -15dB
R37 (25h)
8
RD2RO
0
0
Right DAC to Right Mixer
0 = Disable (Mute)
1 = Enable Path
Right Mixer (2)
7
RI2RO
LINEINR Signal to Right Mixer
0 = Disable (Mute)
1 = Enable Path
6:4
RI2ROVOL
101
LINEINR Signal to Right Mixer Volume
000 = +6dB
(-9dB)
… (3dB steps)
111 = -15dB
Table 7 Right Output Mixer Control
REGISTER
ADDRESS
BIT
LABEL
LD2MO
DEFAULT
DESCRIPTION
R38 (26h)
8
0
0
Left DAC to Mono Mixer
0 = Disable (Mute)
1 = Enable Path
Mono Mixer (1)
7
LI2MO
LINEINL Signal to Mono Mixer
0 = Disable (Mute)
1 = Enable Path
6:4
LI2MOVOL
101
LINEINL Signal to Right Mono Volume
000 = 0dB
(-9dB)
… (3dB steps)
111 = -21dB
R39 (27h)
8
RD2MO
0
0
Right DAC to Mono Mixer
0 = Disable (Mute)
1 = Enable Path
Mono Mixer (2)
7
RI2MO
LINEINR Signal to Mono Mixer
0 = Disable (Mute)
1 = Enable Path
6:4
RI2MOVOL
101
LINEINR Signal to Mono Mixer Volume
000 = 0dB
(-9dB)
… (3dB steps)
111 = -21dB
Table 8 Mono Output Mixer Control
Note: The mono mixer has half the gain of the left and right mixers (i.e. 6dB less), to ensure that the
left and right channels can be mixed to mono without clipping.
Product Preview Rev 0.4 May2003
20
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
