Pre-Production
WM8976
REGISTER
ADDRESS
BIT
LABEL
LIMATK
DEFAULT
DESCRIPTION
R24
3:0
0010
Limiter Attack time (per 6dB gain
change) for 44.1kHz sampling. Note
that these will scale proportionally with
sample rate.
DAC digital
limiter control
1
0000=94us
0001=188s
0010=375us
0011=750us
0100=1.5ms
0101=3ms
0110=6ms
0111=12ms
1000=24ms
1001=48ms
1010=96ms
1011 to 1111=192ms
7:4
LIMDCY
0011
Limiter Decay time (per 6dB gain
change) for 44.1kHz sampling. Note
that these will scale proportionally with
sample rate:
0000=750us
0001=1.5ms
0010=3ms
0011=6ms
0100=12ms
0101=24ms
0110=48ms
0111=96ms
1000=192ms
1001=384ms
1010=768ms
1011 to 1111=1.536s
Enable the DAC digital limiter:
0=disabled
8
LIMEN
0
1=enabled
R25
3:0
LIMBOOST
0000
Limiter volume boost (can be used as a
stand alone volume boost when
LIMEN=0):
DAC digital
limiter control
2
0000=0dB
0001=+1dB
0010=+2dB
… (1dB steps)
1011=+11dB
1100=+12dB
1101 to 1111=reserved
PP Rev 3.0 April 2006
45
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
