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WM8994 Datasheet(PDF) 153 Page - Wolfson Microelectronics plc

Part # WM8994
Description  Multi-Channel Audio Hub CODEC for Smartphones
PDF  359 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8994 Datasheet(HTML) 153 Page - Wolfson Microelectronics plc

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Production Data
WM8994
w
PD, April 2012, Rev 4.4
153
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
10:9
AIF1DRC1_SIG_
DET_PK [1:0]
00
AIF1 DRC1 Signal Detect Peak
Threshold.
This is the Peak/RMS ratio, or Crest
Factor, level for signal detect to be
indicated when
AIF1DRC1_SIG_DET_MODE=0.
00 = 12dB
01 = 18dB
10 = 24dB
11 = 30dB
7
AIF1DRC1_SIG_
DET_MODE
1
AIF1 DRC1 Signal Detect Mode
0 = Peak threshold mode
1 = RMS threshold mode
6
AIF1DRC1_SIG_
DET
0
AIF1 DRC1 Signal Detect Enable
0 = Disabled
1 = Enabled
R1104
(0450h)
AIF1 DRC2
(1)
15:11
AIF1DRC2_SIG_
DET_RMS [4:0]
00000
AIF1 DRC2 Signal Detect RMS
Threshold.
This is the RMS signal level for signal
detect to be indicated when
AIF1DRC2_SIG_DET_MODE=1.
00000 = -30dB
00001 = -31.5dB
…. (1.5dB steps)
11110 = -75dB
11111 = -76.5dB
10:9
AIF1DRC2_SIG_
DET_PK [1:0]
00
AIF1 DRC2 Signal Detect Peak
Threshold.
This is the Peak/RMS ratio, or Crest
Factor, level for signal detect to be
indicated when
AIF1DRC2_SIG_DET_MODE=0.
00 = 12dB
01 = 18dB
10 = 24dB
11 = 30dB
7
AIF1DRC2_SIG_
DET_MODE
1
AIF1 DRC2 Signal Detect Mode
0 = Peak threshold mode
1 = RMS threshold mode
6
AIF1DRC2_SIG_
DET
0
AIF1 DRC2 Signal Detect Enable
0 = Disabled
1 = Enabled
R1344
(0540h)
AIF2 DRC (1)
15:11
AIF2DRC_SIG_D
ET_RMS [4:0]
00000
AIF2 DRC Signal Detect RMS
Threshold.
This is the RMS signal level for signal
detect to be indicated when
AIF2DRC_SIG_DET_MODE=1.
00000 = -30dB
00001 = -31.5dB
…. (1.5dB steps)
11110 = -75dB
11111 = -76.5dB



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