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WM8976GEFL/V Datasheet(PDF) 91 Page - Wolfson Microelectronics plc

Part # WM8976GEFL/V
Description  Stereo CODEC With Speaker Driver
PDF  108 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8976GEFL/V Datasheet(HTML) 91 Page - Wolfson Microelectronics plc

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Pre-Production
WM8976
w
PP Rev 3.0 April 2006
91
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
6:4
LIMLVL
000
Programmable signal threshold level (determines
level at which the DAC limiter starts to operate)
000=-1dB
001=-2dB
010=-3dB
011=-4dB
100=-5dB
101 to 111=-6dB
Output Signal
Path
3:0
LIMBOOST
0000
DAC Limiter volume boost (can be used as a
stand alone volume boost when LIMEN=0):
0000=0dB
0001=+1dB
0010=+2dB
… (1dB steps)
1011=+11dB
1100=+12dB
1101 to 1111=reserved
Output Signal
Path
8
NFU
0
Notch filter update. The notch filter values used
internally only update when one of the NFU bits is
set high.
Analogue to
Digital
Converter
(ADC)
7
NFEN
0
Notch filter enable:
0=Disabled
1=Enabled
Analogue to
Digital
Converter
(ADC)
27 (1Bh)
6:0
NFA0[13:7]
0000000
Notch Filter a0 coefficient, bits [13:7]
Analogue to
Digital
Converter
(ADC)
8
NFU
0
Notch filter update. The notch filter values used
internally only update when one of the NFU bits is
set high.
Analogue to
Digital
Converter
(ADC)
7
0
Reserved
28 (1Ch)
6:0
NFA0[6:0]
0000000
Notch Filter a0 coefficient, bits [6:0]
Analogue to
Digital
Converter
(ADC)
8
NFU
0
Notch filter update. The notch filter values used
internally only update when one of the NFU bits is
set high.
Analogue to
Digital
Converter
(ADC)
7
0
Reserved
29 (1Dh)
6:0
NFA1[13:7]
0000000
Notch Filter a1 coefficient, bits [13:7]
Analogue to
Digital
Converter
(ADC)
8
NFU
0
Notch filter update. The notch filter values used
internally only update when one of the NFU bits is
set high.
Analogue to
Digital
Converter
(ADC)
7
0
Reserved
30 (1Eh)
6:0
NFA1[6:0]
0000000
Notch Filter a1 coefficient, bits [6:0]
Analogue to
Digital
Converter
(ADC)



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