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WM8955BLGECO/RV 数据表(PDF) 21 Page - Wolfson Microelectronics plc

部件名 WM8955BLGECO/RV
功能描述  Stereo DAC For Portable Audio Applications
PDF  44 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM8955BLGECO/RV 数据表(HTML) 21 Page - Wolfson Microelectronics plc

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



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