wm8940gefl-v Wolfson Microelectronics plc, wm8940gefl-v Datasheet - Page 73

• Manufacturer Part Number: wm8940gefl-v
• Description: Mono Codec With Speaker Driver
• Manufacturer: Wolfson Microelectronics plc

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Production Data
11 (0Bh)
12 (0Ch)
13 (0Dh)
14 (0Eh)
15 (0Fh)
16 (10h)
17 (11h)
REGISTER
ADDRESS
6
5:3
2
1
0
15:8
7:0
15:0
15:0
15:9
8
7
6:4
3:1
0
15:8
7:0
15
14
13:0
15
14
BIT
DACMU
AMUTE
DACPOL
DACVOL
HPFEN
HPFAPP
HPFCUT
ADCPOL
ADCVOL
NF0_UP
NF0_EN
NF0_A0
NF0_UP
LABEL
0
0
11111111
1
0
000
0
0
0
00
0
0
00h
00h
00
0
00h
11111111
0000h
0
DEFAULT
DAC soft mute enable
0 = DACMU disabled
1 = DACMU enabled
Reserved
DAC auto mute enable
0 = auto mute disabled
1 = auto mute enabled
Reserved
DAC Polarity Invert
0 = No inversion
1 = DAC output inverted
Reserved
DAC Digital Volume Control
0000 0000 = Digital Mute
0000 0001 = -127dB
0000 0010 = -126.5dB
… 0.5dB steps up to
1111 1111 = 0dB
Reserved
Reserved
Reserved
High Pass Filter Enable
0=disabled
1=enabled
Select audio mode or application mode
0=Audio mode (1
1=Application mode (2
Application mode cut-off frequency
See Table 14 for details.
Reserved
ADC Polarity
0=normal
1=inverted
Reserved
ADC Digital Volume Control
0000 0000 = Digital Mute
0000 0001 = -127dB
0000 0010 = -126.5dB
... 0.5dB steps up to
1111 1111 = 0dB
Notch filter 0 update. The notch filter 0 values used
internally only update when one of the NF0_UP bits is
set high.
Notch filter 0 enable:
0=Disabled
1=Enabled
Notch Filter 0 a0 coefficient
Notch filter 0 update. The notch filter 0 values used
internally only update when one of the NF0_UP bits is
set high.
Reserved
st
order, fc = ~3.7Hz)
DESCRIPTION
nd
order, fc = HPFCUT)
PD, Rev 4.2, April 2008
Output Signal
Path
Output Signal
Path
Output Signal
Path
Output Signal
Path
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
REFER TO
WM8940
73