WM8351 Datasheet, PDF (249/330 Pages) Wolfson Microelectronics plc – Wolfson AudioPlus™ Stereo CODEC with Power Management

Production Data
REGISTER BIT
ADDRESS
R64 (40h)
15
ADC Control
LABEL
DEFAULT
ADC_HPF_ENA
1
9:8 ADC_HPF_CUT[1:0]
00
1
ADCL_DATINV
0
0
ADCR_DATINV
0
Register 40h ADC Control
DESCRIPTION
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
WM8351
REFER TO
REGISTER BIT
ADDRESS
R66 (42h)
15
ADC Digital
Volume L
8
7:0
LABEL
DEFAULT
DESCRIPTION
ADCL_ENA
ADC_VU
ADCL_VOL[7:0]
0
0
1100_0000
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.
Left ADC Digital Volume Control
0000 0000 = Digital Mute
0000 0001 = -71.625dB
0000 0010 = -71.25dB
... 0.375dB steps up to
1110 1111 = +17.625dB
Register 42h ADC Digital Volume L
REFER TO
REGISTER BIT
LABEL
DEFAULT
DESCRIPTION
ADDRESS
R67 (43h)
15
ADC Digital
Volume R
ADCR_ENA
0
Right ADC enable
0 = disabled
1 = enabled
8
ADC_VU
0
ADC left and ADC right volume do not update until a
1 is written to either ADC_VU register bit.
7:0 ADCR_VOL[7:0] 1100_0000 Right ADC Digital Volume Control
0000 0000 = Digital Mute
0000 0001 = -71.625dB
0000 0010 = -71.25dB
... 0.375dB steps up to
1110 1111 = +17.625dB
Register 43h ADC Digital Volume R
REFER TO
w
PD, April 2012, Rev 4.5
249