wm9081 Wolfson Microelectronics plc, wm9081 Datasheet - Page 96
wm9081
Manufacturer Part Number
wm9081
Description
Mono Dac With 2.6w Class Ab/d Speaker Driver, Dynamic Range Controller And Retune Mobile Parametric Equalizer
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM9081.pdf
(109 pages)
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WM9081
Register 21h DRC 2
Register 22h DRC 3
Register 23h DRC 4
w
REGISTER
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
ADDRESS
R34 (22h)
R35 (23h)
DRC 3
DRC 4
10:5
BIT
BIT
BIT
BIT
5:3
2:0
4:0
DRC_KNEE_IP
DRC_LO_COM
DRC_KNEE_O
DRC_HI_COM
LABEL
LABEL
LABEL
LABEL
P[2:0]
P[2:0]
P[4:0]
[5:0]
DEFAULT
DEFAULT
DEFAULT
DEFAULT
00_0000
0_0000
000
000
01 = 18dB (default)
10 = 24dB
11 = 36dB
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
Compressor slope (lower region)
000 = 1 (no compression)
001 = 1/2
010 = 1/4
011 = 1/8
100 = 0
101 = Reserved
11X = Reserved
Input signal level at the Compressor ‘knee’.
000000 = 0dB
000001 = -0.75dB
000010 = -1.5dB
… (-0.75dB steps)
111100 = -45dB
111101 = Reserved
11111X = Reserved
Output signal at the Compressor ‘knee’.
00000 = 0dB
00001 = -0.75dB
00010 = -1.5dB
… (-0.75dB steps)
11110 = -22.5dB
11111 = Reserved
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
PP, Rev 3.0, April 2009
Controller
(DRC)
Dynamic
Range
Controller
(DRC)
Dynamic
Range
Controller
(DRC)
Dynamic
Range
Controller
(DRC)
Dynamic
Range
Controller
(DRC)
REFER TO
REFER TO
REFER TO
REFER TO
Pre-Production
96
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