WM8976 Wolfson Microelectronics Ltd., WM8976 Datasheet - Page 89

• Manufacturer Part Number: WM8976
• Description: The WM8976 is a low power, high quality stereo codec designed for portable applications such as Digital still camera or Digital Camcorde
• Manufacturer: Wolfson Microelectronics Ltd.

Pre-Production
w
15 (0Fh)
16 (10h)
18 (12h)
19 (13h)
20 (14h)
REGISTER
ADDRESS
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
4:0
BIT
ADCOSR
128
ADCLPOL
ADCVU
ADCVOLL
EQ3DMODE
EQ1C
EQ1G
EQ2BW
EQ2C
EQ2G
EQ3BW
EQ3C
EQ3G
LABEL
00
N/A
11111111
0
0
11111111
1
0
01100
0
0
01
01100
0
0
01
01100
DEFAULT
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
ADC Digital Volume Control
0000 0000 = Digital Mute
0000 0001 = -127dB
0000 0010 = -126.5dB
... 0.5dB steps up to
1111 1111 = 0dB
Reserved
0 = Equaliser and 3D Enhancement applied to
ADC path
1 = Equaliser and 3D Enhancement applied to
DAC path
Reserved
EQ Band 1 Cut-off Frequency:
00=80Hz
01=105Hz
10=135Hz
11=175Hz
EQ Band 1 Gain Control. See Table 36 for details.
EQ Band 2 Bandwidth Control
0=narrow bandwidth
1=wide bandwidth
Reserved
EQ Band 2 Centre Frequency:
00=230Hz
01=300Hz
10=385Hz
11=500Hz
EQ Band 2 Gain Control. See Table 36 for details.
EQ Band 3 Bandwidth Control
0=narrow bandwidth
1=wide bandwidth
Reserved
EQ Band 3 Centre Frequency:
00=650Hz
01=850Hz
10=1.1kHz
11=1.4kHz
EQ Band 3 Gain Control. See Table 36 for details.
DESCRIPTION
PP Rev 3.0 April 2006
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
Output Signal
Path
REFER TO
WM8976
89