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WM8955 датащи(PDF) 21 Page - Wolfson Microelectronics plc

номер детали WM8955
подробное описание детали  STEREO DAC FOR PORTABLE AUDIO APPLICATIONS
PDF  43 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8955 датащи(HTML) 21 Page - Wolfson Microelectronics plc

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Product Preview
WM8955L
w
Product Preview Rev 0.4 May2003
21
DIFFERENTIAL MONO LINE-IN
The WM8955L can take either a single-ended or a differential mono signal and mix it into the
LOUT1/2 and ROUT1/2 outputs. In both cases, LINEINL and LINEINR still remain available as stereo
line-in. Differential mono input mode is enabled bysetting the DMEN bit, as shown below.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R38 (26h)
Mono Mixer (1)
0
DMEN
0
Differential mono line-in enable
0 = Single-ended line-in from MONOIN+
1 = Differential line-in
Table 9 Differential Mono Line-in Enable
DAC
LI2LO
MI2LO
MI2RO
RI2RO
LI2MO
RI2MO
LD2LO
RD2LO
LD2MO
RD2MO
LD2RO
RD2RO
LEFT
MIXER
RIGHT
MIXER
MONO
MIXER
W
WM8955L
DAC
ROUT1VOL
LOUT1VOL
MONOVOL
LOUT1
ROUT1
MONOOUT
LOUT2
ROUT2
-1
ROUT2
INV
Loudspeaker
L - (-R)
=L+R
ROUT2VOL
LOUT2VOL
DIFF. IN
DEVICE WITH
DIFFERENTIAL
MONO OUTPUT
MONO OUT(-)
MONO OUT(+)
DMEN = 1
(ON)
Figure 6 Differential Mono Line-in Configuration (DMEN=1)
DAC
LI2LO
MI2LO
MI2RO
RI2RO
LI2MO
RI2MO
LD2LO
RD2LO
LD2MO
RD2MO
LD2RO
RD2RO
LEFT
MIXER
RIGHT
MIXER
MONO
MIXER
W
WM8955L
DAC
ROUT1VOL
LOUT1VOL
MONOVOL
LOUT1
ROUT1
MONOOUT
LOUT2
ROUT2
-1
ROUT2
INV
Loudspeaker
L - (-R)
=L+R
ROUT2VOL
LOUT2VOL
DIFF. IN
DEVICE WITH
SINGLE-ENDED
MONO OUTPUT
MONO OUT
DMEN = 0
(OFF)
Figure 7 Single-ended Mono Line-in Configuration (DMEN=0)



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