wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 248
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wm8351
Manufacturer Part Number
wm8351
Description
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8351.pdf
(328 pages)
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WM8351
Register 40h ADC Control
Register 42h ADC Digital Volume L
Register 43h ADC Digital Volume R
w
REGISTER
REGISTER
REGISTER
ADDRESS
ADC Control
ADDRESS
ADDRESS
ADC Digital
ADC Digital
R64 (40h)
R66 (42h)
R67 (43h)
Volume R
Volume L
BIT
BIT
BIT
9:8
7:0
15
7:0
15
15
1
0
8
8
ADC_HPF_CUT[1:0]
ADCR_VOL[7:0] 1100_0000 Right ADC Digital Volume Control
ADCL_VOL[7:0]
ADC_HPF_ENA
ADCR_DATINV
ADCR_ENA
ADCL_DATINV
ADCL_ENA
ADC_VU
LABEL
ADC_VU
LABEL
LABEL
DEFAULT
DEFAULT
1100_0000 Left ADC Digital Volume Control
DEFAULT
0
0
0
0
00
1
0
0
Left ADC enable
0 = disabled
1 = enabled
ADC left and ADC right volume do not update until a
1 is written to either ADC_VU register bit.
0000 0000 = Digital Mute
0000 0001 = -71.625dB
0000 0010 = -71.25dB
... 0.375dB steps up to
1110 1111 = +17.625dB
Right ADC enable
0 = disabled
1 = enabled
ADC left and ADC right volume do not update until a
1 is written to either ADC_VU register bit.
0000 0000 = Digital Mute
0000 0001 = -71.625dB
0000 0010 = -71.25dB
... 0.375dB steps up to
1110 1111 = +17.625dB
High Pass Filter enable
0 = disabled
1 = enabled
Select cut-off frequency for high-pass filter
00 = 2^-11 (first order) = 3.7Hz @44.1kHz
01 = 2^-5 (2nd order) = ~250Hz @8kHz
10 = 2^-4 (2nd order) = ~250Hz @16kHz
11 = 2^-3 (2nd order) = ~250Hz @32kHz
ADC Left channel polarity:
0 = Normal
1 = Inverted
ADC Right Channel Polarity
0 = Normal
1 = Inverted
DESCRIPTION
DESCRIPTION
DESCRIPTION
PD, June 2009, Rev 4.1
REFER TO
REFER TO
REFER TO
Production Data
248
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