WM8976_11 Datasheet, PDF (37/114 Pages) Wolfson Microelectronics plc – Stereo CODEC with Speaker Driver

Production Data
LIMITER MODE
ALCMODE = 1 (Limiter Mode)
ALCATK
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
t_ATKLIM
22.7µs
45.4µS
90.8µS
182µS
363µS
726µS
1.45ms
2.9ms
5.81ms
11.6ms
23.2ms
Attack Time (s)
t_ATKLIM6dB
t_ATKLIM90%
182µs
1.31ms
363µs
2.62ms
726µs
5.23ms
1.45ms
10.5ms
2.91ms
20.9ms
5.81ms
41.8ms
11.6ms
83.7ms
23.2ms
167ms
46.5ms
335ms
93ms
669ms
186ms
1.34s
ALCMODE = 1 (Limiter Mode)
ALCDCY
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
t_DCYLIM
90.8µs
182µS
363µS
726µS
1.45ms
2.91ms
5.81ms
11.6ms
23.2ms
46.5ms
93ms
Attack Time (s)
t_DCYLIM6dB
t_DCYLIM90%
726µs
5.23ms
1.45ms
10.5ms
2.91ms
20.9ms
5.81ms
41.8ms
11.6ms
83.7ms
23.2ms
167ms
46.5ms
335ms
93ms
669ms
186ms
1.34s
372ms
2.68s
744ms
5.36s
Table 20 ALC Limiter Mode (Attack and Decay times)
WM8976
w
PD, Rev 4.5, November 2011
37