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WM8978CGEFL/V датащи(PDF) 79 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) 79 Page - Wolfson Microelectronics plc

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Production Data
WM8978
w
PD, Rev 4.5, October 2011
79
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Figure 42 u-Law Companding
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Figure 43 A-Law Companding
GENERAL PURPOSE INPUT/OUTPUT
The WM8978 has three dual purpose input/output pins.
CSB/GPIO1: CSB / GPIO pin
L2/GPIO2: Left channel line input / headphone detection input
R2/GPIO3: Right channel line input / headphone detection input
The GPIO2 and GPIO3 functions are provided for use as jack detection inputs.
The GPIO1 function is provided for use as a jack detection input or a general purpose output.
The default configuration for the CSB/GPIO1 pin is to be an input.
When setup as an input, the CSB/GPIO1 pin can either be used as CSB or for jack detection,
depending on how the MODE pin is set.
Table 49 illustrates the functionality of the GPIO1 pin when used as a general purpose output.



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