WM8955BL Wolfson Microelectronics, WM8955BL Datasheet - Page 21

• Manufacturer Part Number: WM8955BL
• Description: Stereo DAC
• Manufacturer: Wolfson Microelectronics

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Production Data
Table 8 Right Output Mixer Control
Table 9 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.
R36 (24h)
Right Mixer
(1)
R37 (25h)
Right Mixer
(2)
R38 (26h)
Mono Mixer
(1)
R39 (27h)
Mono Mixer
(2)
REGISTER
REGISTER
ADDRESS
ADDRESS
8
7
6:4
8
7
6:4
8
7
6:4
8
7
6:4
BIT
BIT
LD2RO
MI2RO
MI2ROVOL
RD2RO
RI2RO
RI2ROVOL
LD2MO
LI2MO
LI2MOVOL
RD2MO
RI2MO
RI2MOVOL
LABEL
LABEL
0
0
101
(-9dB)
0
0
101
(-9dB)
0
0
101
(-9dB)
0
0
101
(-9dB)
DEFAULT
DEFAULT
Left DAC to Right Mixer
0 = Disable (Mute)
1 = Enable Path
MONOIN Signal to Right Mixer
0 = Disable (Mute)
1 = Enable Path
MONOIN Signal to Right Mixer Volume
000 = +6dB
… (3dB steps)
111 = -15dB
Right DAC to Right Mixer
0 = Disable (Mute)
1 = Enable Path
LINEINR Signal to Right Mixer
0 = Disable (Mute)
1 = Enable Path
LINEINR Signal to Right Mixer Volume
000 = +6dB
… (3dB steps)
111 = -15dB
Left DAC to Mono Mixer
0 = Disable (Mute)
1 = Enable Path
LINEINL Signal to Mono Mixer
0 = Disable (Mute)
1 = Enable Path
LINEINL Signal to Right Mono Volume
000 = 0dB
… (3dB steps)
111 = -21dB
Right DAC to Mono Mixer
0 = Disable (Mute)
1 = Enable Path
LINEINR Signal to Mono Mixer
0 = Disable (Mute)
1 = Enable Path
LINEINR Signal to Mono Mixer Volume
000 = 0dB
… (3dB steps)
111 = -21dB
DESCRIPTION
DESCRIPTION
PD Rev 4.1 February 2007
WM8955BL
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