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WM8978CGEFL/V датащи(PDF) 29 Page - Wolfson Microelectronics plc

номер детали WM8978CGEFL/V
подробное описание детали  Stereo CODEC with Speaker Driver
PDF  118 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8978CGEFL/V датащи(HTML) 29 Page - Wolfson Microelectronics plc

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Production Data
WM8978
w
PD, Rev 4.5, October 2011
29
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R47
Left channel
Input BOOST
control
2:0
AUXL2BOOSTVOL
000
Controls the auxiliary amplifier to
the left channel input boost stage:
000=Path disabled (disconnected)
001=-12dB gain through boost
stage
010=-9dB gain through boost
stage
111=+6dB gain through boost
stage
6:4
L2_2BOOSTVOL
000
Controls the L2 pin to the left
channel input boost stage:
000=Path disabled (disconnected)
001=-12dB gain through boost
stage
010=-9dB gain through boost
stage
111=+6dB gain through boost
stage
R48
Right channel
Input BOOST
control
2:0
AUXR2BOOSTVOL
000
Controls the auxiliary amplifier to
the right channel input boost
stage:
000=Path disabled (disconnected)
001=-12dB gain through boost
stage
010=-9dB gain through boost
stage
111=+6dB gain through boost
stage
6:4
R2_2BOOSTVOL
000
Controls the R2 pin to the right
channel input boost stage:
000=Path disabled (disconnected)
001=-12dB gain through boost
stage
010=-9dB gain through boost
stage
111=+6dB gain through boost
stage
Table 8 Input BOOST Stage Control
The BOOST stage is enabled under control of the BOOSTEN register bit.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R2
Power
management
2
4
BOOSTENL
0
Left channel Input BOOST enable
0 = Boost stage OFF
1 = Boost stage ON
5
BOOSTENR
0
Right channel Input BOOST enable
0 = Boost stage OFF
1 = Boost stage ON
Table 9 Input BOOST Enable Control



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