WM8985_07 Datasheet, PDF (104/118 Pages) Wolfson Microelectronics plc – Multimedia CODEC With Class D Headphone and Line Out

WM8985
REGISTER
ADDRESS
47 (2Fh)
48 (30h)
49 (31h)
BIT
LABEL
5:0 INPPGAVOLR
DEFAULT
010000
8
PGABOOSTL
1
7
0
6:4 L2_2BOOSTVOL 000
3
0
2:0 AUXL2BOOSTVOL 000
8
PGABOOSTR
1
7
0
6:4 R2_2BOOSTVOL 000
3
0
2:0 AUXR2BOOSTVOL 000
8:7
00
6
DACL2RMIX
0
DESCRIPTION
Pre-Production
REFER TO
Right channel input PGA volume
000000 = -12dB
000001 = -11.25db
.
010000 = 0dB
.
111111 = +35.25dB
Boost enable for left channel input PGA:
0 = PGA output has +0dB gain through input
BOOST stage.
1 = PGA output has +20dB gain through input
BOOST stage.
Reserved. Initialise to 0
Controls the L2 pin to the left channel input
boost stage:
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
Controls the auxilliary amplifer to the left channel
input boost stage:
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:
0 = PGA output has +0dB gain through input
BOOST stage.
1 = PGA output has +20dB gain through input
BOOST stage.
Reserved. Initialise to 0
Controls the R2 pin to the right channel input
boost stage:
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
Controls the auxilliary amplifer to the right
channel input boost stage:
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
1 = selected
Input Signal
Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Analogue
Outputs
w
PP, Rev 3.5, March 2007
104