WM8941GEFL WOLFSON [Wolfson Microelectronics plc], WM8941GEFL Datasheet - Page 83
![no-image](/images/no-image-200.jpg)
WM8941GEFL
Manufacturer Part Number
WM8941GEFL
Description
Mono CODEC with Speaker Driver and Video Buffer
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8941GEFL.pdf
(96 pages)
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Part Number
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Quantity
Price
Part Number:
WM8941GEFL
Manufacturer:
WOLFSON
Quantity:
20 000
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Pre Production
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REGISTER
ADDRESS
13:0
15:9
8
7:4
3:0
15:7
6:4
3:0
BIT
NF3_A1
LIMEN
LIMDCY
LIMATK
LIMLVL
LIMBOOST
LABEL
0
0011
000
0000h
00h
0010
000h
0000
DEFAULT
Notch Filter 3 a1 coefficient
Reserved
Enable the DAC digital limiter:
0=disabled
1=enabled
DAC Limiter Decay time (per 6dB gain change) for
44.1kHz sampling. Note that these will scale with
sample rate:
0000=750us
0001=1.5ms
0010=3ms
0011=6ms
0100=12ms
0101=24ms
0110=48ms
0111=96ms
1000=192ms
1001=384ms
1010=768ms
1011 to 1111=1.536s
DAC Limiter Attack time (per 6dB gain change) for
44.1kHz sampling. Note that these will scale with
sample rate.
0000=94us
0001=188s
0010=375us
0011=750us
0100=1.5ms
0101=3ms
0110=6ms
0111=12ms
1000=24ms
1001=48ms
1010=96ms
1011 to 1111=192ms
Reserved
DAC Limiter Programmable signal threshold level
(determines level at which the limiter starts to operate)
000=-1dB
001=-2dB
010=-3dB
011=-4dB
100=-5dB
101 to 111=-6dB
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
DESCRIPTION
PP, Rev 3.3, December 2007
Analogue to
Digital Converter
(ADC)
Output Signal
Path
Output Signal
Path
Output Signal
Path
Output Signal
Path
Output Signal
Path
REFER TO
WM8941
83
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