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WM8912 датащи(PDF) 63 Page - Cirrus Logic

номер детали WM8912
подробное описание детали  Ultra Low Power DAC with Headphone Driver
PDF  129 Pages
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производитель  CIRRUS [Cirrus Logic]
домашняя страница  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8912 датащи(HTML) 63 Page - Cirrus Logic

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Production Data
WM8912
w
PD, Rev 4.1, February 2013
63
DIGITAL PULL-UP AND PULL-DOWN
The WM8912 provides integrated pull-up and pull-down resistors on each of the MCLK, DACDAT,
LRCLK and BCLK pins. This provides a flexible capability for interfacing with other devices. Each of
the pull-up and pull-down resistors can be configured independently using the register bits described
in Table 38.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R126 (7Eh)
Digital Pulls
7
MCLK_PU
0
MCLK pull-up resistor enable
0 = pull-up disabled
1 = pull-up enabled
6
MCLK_PD
0
MCLK pull-down resistor enable
0 = pull-down disabled
1 = pull-down enabled
5
DACDAT_PU
0
DACDAT pull-up resistor enable
0 = pull-up disabled
1 = pull-up enabled
4
DACDAT_PD
0
DACDAT pull-down resistor enable
0 = pull-down disabled
1 = pull-down enabled
3
LRCLK_PU
0
LRCLK pull-up resistor enable
0 = pull-up disabled
1 = pull-up enabled
2
LRCLK_PD
0
LRCLK pull-down resistor enable
0 = pull-down disabled
1 = pull-down enabled
1
BCLK_PU
0
BCLK pull-up resistor enable
0 = pull-up disabled
1 = pull-up enabled
0
BCLK_PD
0
BCLK pull-down resistor enable
0 = pull-down disabled
1 = pull-down enabled
Table 38 Digital Audio Interface Pull-Up and Pull-Down Control



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