wm8940gefl-v Wolfson Microelectronics plc, wm8940gefl-v Datasheet - Page 32

• Manufacturer Part Number: wm8940gefl-v
• Description: Mono Codec With Speaker Driver
• Manufacturer: Wolfson Microelectronics plc

WM8940
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NORMAL MODE
Table 21 ALC Normal Mode (Attack and Decay times)
ALCMODE = 0 (Normal Mode)
ALCATK
ALCMODE = 0 (Normal Mode)
ALCDCY
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
t
t
ATK
DCY
1.66ms
3.33ms
6.66ms
13.3ms
26.6ms
53.2ms
1.64ms
3.28ms
6.56ms
13.1ms
26.2ms
52.5ms
106ms
105ms
210ms
420ms
104µs
208µs
416µs
832µs
410µs
820µs
t
t
ATK6dB
DCY6dB
Attack Time (s)
Decay Time (s)
213.2ms
1.66ms
3.33ms
6.66ms
13.3ms
26.6ms
53.2ms
3.28ms
6.56ms
13.1ms
26.2ms
52.5ms
106ms
426ms
852ms
105ms
210ms
420ms
840ms
832µs
1.68s
3.36s
t
t
ATK90%
DCY90%
23.6ms
47.2ms
94.5ms
192ms
384ms
767ms
189ms
378ms
756ms
12ms
24ms
48ms
96ms
1.53s
3.07s
6.13s
1.51s
3.02s
6.05s
12.1s
24.2s
6ms
PD, Rev 4.2, April 2008
Production Data
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