WM8976GEFL/V Wolfson Microelectronics, WM8976GEFL/V Datasheet - Page 92

• 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
15 (0Fh)
16 (10h)
18 (12h)
19 (13h)
20 (14h)
REGISTER
ADDRESS
6:4
3
2:1
0
8
7:0
8:0
8
7
6:5
4:0
8
7
6:5
4:0
8
7
6:5
BIT
HPFCUT
ADCOSR
128
ADCLPOL
ADCVU
ADCVOLL
EQ3DMODE
EQ1C
EQ1G
EQ2BW
EQ2C
EQ2G
EQ3BW
EQ3C
LABEL
000
0
00
0
N/A
11111111
11111111
1
0
01100
0
0
01
01100
0
0
01
DEFAULT
ADC Digital Volume Control
Reserved
EQ Band 1 Cut-off Frequency:
EQ Band 1 Gain Control. See Table 37 for details.
EQ Band 2 Centre Frequency:
EQ Band 2 Gain Control. See Table 37 for details.
EQ Band 3 Centre Frequency:
Application mode cut-off frequency
See Table 15 for details.
ADC oversample rate select
0 = 64x (lowest power)
1 = 128x (best SNR)
Reserved
ADC polarity adjust:
0=normal
1=inverted
ADC volume does not update until a 1 is written to
ADCVU
0000 0000 = Digital Mute
0000 0001 = -127dB
0000 0010 = -126.5dB
... 0.5dB steps up to
1111 1111 = 0dB
0 = Equaliser and 3D Enhancement applied to
ADC path
1 = Equaliser and 3D Enhancement applied to
DAC path
Reserved
00=80Hz
01=105Hz
10=135Hz
11=175Hz
EQ Band 2 Bandwidth Control
0=narrow bandwidth
1=wide bandwidth
Reserved
00=230Hz
01=300Hz
10=385Hz
11=500Hz
EQ Band 3 Bandwidth Control
0=narrow bandwidth
1=wide bandwidth
Reserved
00=650Hz
01=850Hz
10=1.1kHz
11=1.4kHz
DESCRIPTION
PD Rev 4.4 July 2009
Analogue to
Digital
Converter
(ADC)
Power
Management
Analogue to
Digital
Converter
(ADC)
Analogue to
Digital
Converter
(ADC)
Analogue to
Digital
Converter
(ADC)
Output Signal
Path
Output Signal
Path
Output Signal
Path
Output Signal
Path
Output Signal
Path
Output Signal
Path
Output Signal
Path
Output Signal
Path
REFER TO
Production Data
92