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WM8281ECS/R Scheda tecnica(PDF) 83 Page - Cirrus Logic

Il numero della parte WM8281ECS/R
Spiegazioni elettronici  Low Power Audio System with Ambient Noise Cancellation and Echo Cancellation
PDF  392 Pages
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Produttore elettronici  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8281ECS/R Scheda tecnica(HTML) 83 Page - Cirrus Logic

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WM8281
Rev 4.0
83
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
8:5
DRC1_DCY [3:0]
1001
DRC1 Gain decay rate
(seconds/6dB)
0000 = 1.45ms
0001 = 2.9ms
0010 = 5.8ms
0011 = 11.6ms
0100 = 23.25ms
0101 = 46.5ms
0110 = 93ms
0111 = 186ms
1000 = 372ms
1001 = 743ms
1010 = 1.49s
1011 = 2.97s
1100 to1111 = Reserved
4:2
DRC1_MINGAIN
[2:0]
100
DRC1 Minimum gain to attenuate
audio signals
000 = 0dB
001 = -12dB
010 = -18dB
011 = -24dB
100 = -36dB
101 = Reserved
11X = Reserved
1:0
DRC1_MAXGAI
N [1:0]
11
DRC1 Maximum gain to boost audio
signals (dB)
00 = 12dB
01 = 18dB
10 = 24dB
11 = 36dB
R3714
(0E82h)
DRC1 ctrl3
15:12
DRC1_NG_MIN
GAIN [3:0]
0000
DRC1 Minimum gain to attenuate
audio signals when the noise gate is
active.
0000 = -36dB
0001 = -30dB
0010 = -24dB
0011 = -18dB
0100 = -12dB
0101 = -6dB
0110 = 0dB
0111 = 6dB
1000 = 12dB
1001 = 18dB
1010 = 24dB
1011 = 30dB
1100 = 36dB
1101 to 1111 = Reserved
11:10
DRC1_NG_EXP
[1:0]
00
DRC1 Noise Gate slope
00 = 1 (no expansion)
01 = 2
10 = 4
11 = 8
9:8
DRC1_QR_THR
[1:0]
00
DRC1 Quick-release threshold
(crest factor in dB)
00 = 12dB
01 = 18dB
10 = 24dB
11 = 30dB



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