WM8983
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DESCRIPTION
REGISTER
ADDRESS
BIT
LABEL
EQ4G
DEFAULT
R21
4:0
01100
(0dB)
01
Band 4 Gain Control. See Table 29 for
details
EQ Band 4
Control
6:5
8
EQ4C
Band 4 Centre Frequency:
00 = 1.8kHz
01 = 2.4kHz
10 = 3.2kHz
11 = 4.1kHz
EQ4BW
0
Band 4 Bandwidth Control
0 = narrow bandwidth
1 = wide bandwidth
Table 27 EQ Band 4 Control
REGISTER
ADDRESS
BIT
LABEL
EQ5G
EQ5C
DEFAULT
DESCRIPTION
R22
4:0
01100
(0dB)
01
Band 5 Gain Control. See Table 29 for
details.
EQ Band 5
Gain Control
6:5
Band 5 Cut-off Frequency:
00 = 5.3kHz
01 = 6.9kHz
10 = 9kHz
11 = 11.7kHz
Table 28 EQ Band 5 Control
GAIN REGISTER
GAIN
+12dB
+11dB
+10dB
+9dB
00000
00001
00010
00011
00100
+8dB
00101
+7dB
00110
+6dB
00111
+5dB
01000
+4dB
01001
+3dB
01010
+2dB
01011
+1dB
01100
01101
0dB
-1dB
11000
-12dB
Reserved
11001 to 11111
Table 29 Gain Register Table
See also Figure 51 to Figure 68 for equaliser and high pass filter responses.
PP Rev 1.1 August 2005
44
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
