WM8976 Wolfson Microelectronics Ltd., WM8976 Datasheet - Page 95

• 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
46 (2Eh)
47 (2Fh)
48 (30h)
49 (31h)
REGISTER
ADDRESS
8:0
8
7
6:4
3
2:0
8:0
8:7
6
5
4
3
2
1
0
BIT
PGA
BOOSTL
L2_2
BOOSTVOL
AUXL2
BOOSTVOL
DACL2RMIX
DACR2LMIX
OUT4
BOOST
OUT3
BOOST
SPKBOOST
TSDEN
VROI
LABEL
00001000
10000000
00
0
0
1
0
1
0
000
0
000
0
0
0
0
0
DEFAULT
Reserved
Boost enable for input PGA:
0 = PGA output has +0dB gain through input
BOOST stage.
1 = PGA output has +20dB gain through input
BOOST stage.
Reserved
Controls the L2 pin to the 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
Controls the auxilliary amplifer to the 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
Reserved
Left DAC output to right output mixer
0 = not selected
1 = selected
Right DAC output to left output mixer
0 = not selected
1 = selected
0 = OUT4 output gain = -1;
1 = OUT4 output gain = +1.5
0 = OUT3 output gain = -1;
1 = OUT3 output gain = +1.5
0 = speaker gain = -1;
1 = speaker gain = +1.5;
Thermal Shutdown Enable
0 : thermal shutdown disabled
1 : thermal shutdown enabled
VREF (AVDD/2 or 1.5xAVDD/2) to analogue
output resistance
0: approx 1k
1: approx 30 k
DC = AVDD / 2
DC = 1.5 x AVDD / 2
DC = AVDD / 2
DC = 1.5 x AVDD / 2
DC = AVDD / 2
DC = 1.5 x AVDD / 2
DESCRIPTION
PP Rev 3.0 April 2006
Input Signal
Path
Input Signal
Path
Input Signal
Path
Analogue
Outputs
Analogue
Outputs
Analogue
Outputs
Analogue
Outputs
Analogue
Outputs
Analogue
Outputs
Analogue
Outputs
REFER TO
WM8976
95