WM8980CGEFL/RV WOLFSON [Wolfson Microelectronics plc], WM8980CGEFL/RV Datasheet - Page 104

• Manufacturer Part Number: WM8980CGEFL/RV
• Description: Stereo CODEC with Speaker Driver and Video Buffer
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

WM8980
w
29 (1Dh)
30 (1Eh)
32 (20h)
33 (21h)
REGISTER
ADDRESS
8
7
6:0
8
7
6:0
8:7
6
5:3
2:0
8
7:4
BIT
NFU
NFA1[13:7]
NFU
NFA1[6:0]
ALCSEL
ALCMAXGAIN
ALCMINGAIN
ALCZC
ALCHLD
LABEL
0
0
0000000
0
0
0000000
00
0
111
000
0
0000
DEFAULT
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]
ALC function select:
00=ALC off
01=ALC right only
10=ALC left only
11=ALC both on
Reserved
Set Maximum Gain of PGA
111=+35.25dB
110=+29.25dB
101=+23.25dB
100=+17.25dB
011=+11.25dB
010=+5.25dB
001=-0.75dB
000=-6.75dB
Set minimum gain of PGA
000=-12dB
001=-6dB
010=0dB
011=+6dB
100=+12dB
101=+18dB
110=+24dB
111=+30dB
ALC Zero Cross Control
0 = ALCZC off
1 = ALCZC on (only valid when ALCMODE=0.
ALCZC should not be used when ALCMODE=1)
ALC hold time before gain is increased.
0000 = 0ms
0001 = 2.67ms
0010 = 5.33ms
… (time doubles with every step)
1010 or higher = 1.36s
DESCRIPTION
PP, Rev 3.8, May 2012
Analogue to
Digital
Converter
(ADC)
Analogue to
Digital
Converter
(ADC)
Analogue to
Digital
Converter
(ADC)
Analogue to
Digital
Converter
(ADC)
Input Limiter/
Automatic
Level Control
(ALC)
Input Limiter/
Automatic
Level Control
(ALC)
Input Limiter/
Automatic
Level Control
(ALC)
Input Limiter/
Automatic
Level Control
(ALC)
Input Limiter/
Automatic
Level Control
(ALC)
REFER TO
Pre-Production
104