WM8985_07 WOLFSON [Wolfson Microelectronics plc], WM8985_07 Datasheet - Page 96

• Manufacturer Part Number: WM8985_07
• Description: Multimedia CODEC With Class D Headphone and Line Out
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

WM8985
w
12 (0Ch)
13 (0Dh)
14 (0Eh)
15 (0Fh)
REGISTER
ADDRESS
7:0
8
7:0
8
7:4
3:0
8
7
6:4
3
2
1
0
8
BIT
DACVOLL
DACVU
DACVOLR
JD_EN1
JD_EN0
HPFEN
HPFAPP
HPFCUT
ADCOSR
128
ADCRPOL
ADCLPOL
ADCVU
LABEL
11111111
N/A
11111111
0
0000
0000
1
0
000
0
0
0
0
N/A
DEFAULT
Left DAC Digital Volume Control
0000 0000 = Digital Mute
0000 0001 = -127dB
0000 0010 = -126.5dB
... 0.5dB steps up to
1111 1111 = 0dB
DAC left and DAC right volume do not update
until a 1 is written to DACVU (in reg 11 or 12)
Right DAC Digital Volume Control
0000 0000 = Digital Mute
0000 0001 = -127dB
0000 0010 = -126.5dB
... 0.5dB steps up to
1111 1111 = 0dB
Reserved. Initialise to 0
Output enabled when selected jack detection
input is logic 1
[4]= OUT1_EN_1
[5]= OUT2_EN_1
[6]= OUT3_EN_1
[7]= OUT4_EN_1
Output enabled when selected jack detection
input is logic 0.
[0]= OUT1_EN_0
[1]= OUT2_EN_0
[2]= OUT3_EN_0
[3]= OUT4_EN_0
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 Figure 15 for details.
ADC oversample rate select
0 = 64x (lowest power)
1 = 128x (best SNR)
Reserved. Initialise to 0
ADC right channel polarity adjust:
0=normal
1=inverted
ADC left channel polarity adjust:
0=normal
1=inverted
ADC left and ADC right volume do not update
until a 1 is written to ADCVU (in reg 16 or 17)
DESCRIPTION
st
order, fc = ~3.7Hz)
nd
order, fc = HPFCUT)
PP, Rev 3.5, March 2007
Digital to
Analogue
Converter
(DAC)
Output Signal
Path
Output Signal
Path
Output
Switching
(Jack Detect)
Output
Switching
(Jack Detect)
Analogue to
Digital
Converter
(ADC)
Analogue to
Digital
Converter
(ADC)
Analogue to
Digital
Converter
(ADC)
Power
Management
Analogue to
Digital
Converter
(ADC)
Analogue to
Digital
Converter
(ADC)
Analogue to
Digital
Converter
(ADC)
Pre-Production
REFER TO
96