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WM8978CGEFL/V Datasheet(PDF) 32 Page - Wolfson Microelectronics plc

No. de pieza WM8978CGEFL/V
Descripción Electrónicos  Stereo CODEC with Speaker Driver
PDF  118 Pages
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Fabricante Electrónico  WOLFSON [Wolfson Microelectronics plc]
Página de inicio  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8978CGEFL/V Datasheet(HTML) 32 Page - Wolfson Microelectronics plc

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WM8978
Production Data
w
PD, Rev 4.5, October 2011
32
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R14
ADC Control
8
HPFEN
1
High Pass Filter Enable
0=disabled
1=enabled
7
HPFAPP
0
Select audio mode or application mode
0=Audio mode (1
st order, fc = ~3.7Hz)
1=Application mode (2
nd order, fc =
HPFCUT)
6:4
HPFCUT
000
Application mode cut-off frequency
See Table 15 for details.
Table 14 ADC Enable Control
HPFCUT
[2:0]
SR=101/100
SR=011/010
SR=001/000
fs (kHz)
8
11.025
12
16
22.05
24
32
44.1
48
000
82
113
122
82
113
122
82
113
122
001
102
141
153
102
141
153
102
141
153
010
131
180
196
131
180
196
131
180
196
011
163
225
245
163
225
245
163
225
245
100
204
281
306
204
281
306
204
281
306
101
261
360
392
261
360
392
261
360
392
110
327
450
490
327
450
490
327
450
490
111
408
563
612
408
563
612
408
563
612
Table 15 High Pass Filter Cut-off Frequencies (HPFAPP=1). Values in Hz.
Note that the High Pass filter values (when HPFAPP=1) are calculated with the assumption that the
SR register bits are set correctly for the actual sample rate as shown in Table 15.



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