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WM8944BECS/R 数据表(PDF) 121 Page - Cirrus Logic

部件名 WM8944BECS/R
功能描述  Mono Low-Power CODEC with Video Buffer
PDF  165 Pages
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制造商  CIRRUS [Cirrus Logic]
网页  http://www.cirrus.com
标志 CIRRUS - Cirrus Logic

WM8944BECS/R 数据表(HTML) 121 Page - Cirrus Logic

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WM8944B
Rev 4.3
121
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
… (-1.5dB steps)
11110 = -81dB
11111 = -82.5dB
Only applicable when DRC_NG_ENA = 1.
7:2
DRC_KNEE_IP
[5:0]
00_0000
Input signal level at the Compressor ‘Knee’.
000000 = 0dB
000001 = -0.75dB
000010 = -1.5dB
… (-0.75dB steps)
111100 = -45dB
111101 = Reserved
11111X = Reserved
Table 18
Register 20h DRC Control 4
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R33 (21h)
DRC
Control 5
13
DRC_KNEE2_O
P_ENA
0
DRC_KNEE2_OP Enable
0 = Disabled
1 = Enabled
12:8
DRC_KNEE2_O
P [4:0]
0_0000
Output signal at the Noise Gate threshold ‘Knee2’.
00000 = -30dB
00001 = -31.5dB
00010 = -33dB
… (-1.5dB steps)
11110 = -75dB
11111 = -76.5dB
Only applicable when DRC_KNEE2_OP_ENA = 1.
Table 18
7:3
DRC_KNEE_
OP [4:0]
0_0000
Output signal at the Compressor ‘Knee’.
00000 = 0dB
00001 = -0.75dB
00010 = -1.5dB
… (-0.75dB steps)
11110 = -22.5dB
11111 = Reserved
Table 18
2:0
DRC_HI_
COMP [2:0]
011
Compressor slope (upper region)
000 = 1 (no compression)
001 = 1/2
010 = 1/4
011 = 1/8
100 = 1/16
101 = 0
110 = Reserved
111 = Reserved
Register 21h DRC Control 5
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R34 (22h)
DRC
Control 6
3:2
DRC_QR_THR
[1:0]
00
DRC Quick-release threshold (crest factor in dB)
00 = 12dB
01 = 18dB



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