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WM8940CGEFL/V Datasheet(PDF) 34 Page - Cirrus Logic

Part # WM8940CGEFL/V
Description  Mono CODEC with Speaker Driver
PDF  88 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8940CGEFL/V Datasheet(HTML) 34 Page - Cirrus Logic

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WM8940
34
Rev 4.4
ALCMODE = 0 (Normal Mode)
ALCDCY
tDCY
tDCY6dB
tDCY90%
0000
410µs
3.28ms
23.6ms
0001
820µs
6.56ms
47.2ms
0010
1.64ms
13.1ms
94.5ms
0011
3.28ms
26.2ms
189ms
0100
6.56ms
52.5ms
378ms
0101
13.1ms
105ms
756ms
0110
26.2ms
210ms
1.51s
0111
52.5ms
420ms
3.02s
1000
105ms
840ms
6.05s
1001
210ms
1.68s
12.1s
1010
420ms
3.36s
24.2s
Decay Time (s)
Table 21 ALC Normal Mode (Attack and Decay times)
LIMITER MODE
ALCMODE = 1 (Limiter Mode)
ALCATK
tATKLIM
tATKLIM6dB
tATKLIM90%
0000
22.7µs
182µs
1.31ms
0001
45.4µS
363µs
2.62ms
0010
90.8µS
726µs
5.23ms
0011
182µS
1.45ms
10.5ms
0100
363µS
2.91ms
20.9ms
0101
726µS
5.81ms
41.8ms
0110
1.45ms
11.6ms
83.7ms
0111
2.9ms
23.2ms
167ms
1000
5.81ms
46.5ms
335ms
1001
11.6ms
93ms
669ms
1010
23.2ms
186ms
1.34s
Attack Time (s)
ALCMODE = 1 (Limiter Mode)
ALCDCY
tDCYLIM
tDCYLIM6dB
tDCYLIM90%
0000
90.8µs
726µs
5.23ms
0001
182µS
1.45ms
10.5ms
0010
363µS
2.91ms
20.9ms
0011
726µS
5.81ms
41.8ms
0100
1.45ms
11.6ms
83.7ms
0101
2.91ms
23.2ms
167ms
0110
5.81ms
46.5ms
335ms
0111
11.6ms
93ms
669ms
1000
23.2ms
186ms
1.34s
1001
46.5ms
372ms
2.68s
1010
93ms
744ms
5.36s
Attack Time (s)
Table 22 ALC Limiter Mode (Attack and Decay times)



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