WM8985
Pre-Production
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
5:0
INPPGAVOLR
010000
Right channel input PGA volume
Input Signal
Path
000000 = -12dB
000001 = -11.25db
.
010000 = 0dB
.
111111 = +35.25dB
47 (2Fh)
48 (30h)
49 (31h)
8
PGABOOSTL
1
Boost enable for left channel input PGA:
Input Signal
Path
0 = PGA output has +0dB gain through input
BOOST stage.
1 = PGA output has +20dB gain through input
BOOST stage.
7
0
Reserved. Initialise to 0
6:4
L2_2BOOSTVOL
000
Controls the L2 pin to the left channel input
boost stage:
Input Signal
Path
000=Path disabled (disconnected)
001=-12dB gain through boost stage
010=-9dB gain through boost stage
…
111=+6dB gain through boost stage
Reserved. Initialise to 0
3
0
2:0
AUXL2BOOSTVOL
000
Controls the auxilliary amplifer to the left channel Input Signal
input boost stage:
Path
000=Path disabled (disconnected)
001=-12dB gain through boost stage
010=-9dB gain through boost stage
…
111=+6dB gain through boost stage
Boost enable for right channel input PGA:
8
PGABOOSTR
1
Input Signal
Path
0 = PGA output has +0dB gain through input
BOOST stage.
1 = PGA output has +20dB gain through input
BOOST stage.
7
0
Reserved. Initialise to 0
6:4
R2_2BOOSTVOL
000
Controls the R2 pin to the right channel input
boost stage:
Input Signal
Path
000=Path disabled (disconnected)
001=-12dB gain through boost stage
010=-9dB gain through boost stage
…
111=+6dB gain through boost stage
Reserved. Initialise to 0
3
0
2:0
AUXR2BOOSTVOL
000
Controls the auxilliary amplifer to the right
channel input boost stage:
Input Signal
Path
000=Path disabled (disconnected)
001=-12dB gain through boost stage
010=-9dB gain through boost stage
…
111=+6dB gain through boost stage
Reserved. Initialise to 0
Left DAC output to right output mixer
0 = not selected
8:7
6
00
0
DACL2RMIX
Analogue
Outputs
1 = selected
PP, Rev 3.4, October 2006
104
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
