WM8912 Datasheet, PDF (105/128 Pages) Wolfson Microelectronics plc – Ultra Low Power DAC with Headphone Driver for Portable Audio Applications

Production Data
REGISTER BIT
ADDRESS
R42 (2Ah) 5:3
DRC 2
2:0
Register 2Ah DRC 2
LABEL
DEFAULT
DESCRIPTION
DRC_HI_COM
000 Compressor slope R0
P [2:0]
000 = 1 (no compression)
001 = 1/2
010 = 1/4
011 = 1/8
100 = 1/16
101 = 0
110 = Reserved
111 = Reserved
DRC_LO_COM 000 Compressor slope R1
P [2:0]
000 = 1 (no compression)
001 = 1/2
010 = 1/4
011 = 1/8
100 = 0
101 = Reserved
11X = Reserved
REGISTER
ADDRESS
R43 (2Bh)
DRC 3
BIT
LABEL
DEFAULT
DESCRIPTION
10:5 DRC_KNEE_IP 00_0000 Compressor threshold T (dB)
[5:0]
000000 = 0dB
000001 = -0.75dB
000010 = -1.5dB
… (-0.75dB steps)
111100 = -45dB
111101 = Reserved
11111X = Reserved
4:0 DRC_KNEE_O 0_0000 Compressor amplitude at threshold YT (dB)
P [4:0]
00000 = 0dB
00001 = -0.75dB
00010 = -1.5dB
… (-0.75dB steps)
11110 = -22.5dB
11111 = Reserved
Register 2Bh DRC 3
WM8912
REFER TO
REFER TO
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PD, Rev 4.0, September 2010
105