WM8976GEFL/V Wolfson Microelectronics, WM8976GEFL/V Datasheet - Page 94

• Manufacturer Part Number: WM8976GEFL/V
• Description: Audio CODECs Mono ADC Stereo DAC with Spkr
• Manufacturer: Wolfson Microelectronics

Specifications of WM8976GEFL/V

• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8976
w
27 (1Bh)
28 (1Ch)
29 (1Dh)
30 (1Eh)
REGISTER
ADDRESS
6:4
3:0
8
7
6:0
8
7
6:0
8
7
6:0
8
7
6:0
BIT
LIMLVL
LIMBOOST
NFU
NFEN
NFA0[13:7]
NFU
NFA0[6:0]
NFU
NFA1[13:7]
NFU
NFA1[6:0]
LABEL
000
0000
0
0
0000000
0
0
0000000
0
0
0000000
0
0
0000000
DEFAULT
Programmable signal threshold level (determines
level at which the DAC limiter starts to operate)
000=-1dB
001=-2dB
010=-3dB
011=-4dB
100=-5dB
101 to 111=-6dB
DAC Limiter volume boost (can be used as a stand
alone volume boost when LIMEN=0):
0000=0dB
0001=+1dB
0010=+2dB
… (1dB steps)
1011=+11dB
1100=+12dB
1101 to 1111=reserved
Notch filter update. The notch filter values used
internally only update when one of the NFU bits is
set high.
Notch filter enable:
0=Disabled
1=Enabled
Notch Filter a0 coefficient, bits [13:7]
Notch filter update. The notch filter values used
internally only update when one of the NFU bits is
set high.
Reserved
Notch Filter a0 coefficient, bits [6:0]
Notch filter update. The notch filter values used
internally only update when one of the NFU bits is
set high.
Reserved
Notch Filter a1 coefficient, bits [13:7]
Notch filter update. The notch filter values used
internally only update when one of the NFU bits is
set high.
Reserved
Notch Filter a1 coefficient, bits [6:0]
DESCRIPTION
PD Rev 4.4 July 2009
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
Production Data
94