WM8983GEFLSLASHV datasheet(45/124 Pages) WOLFSON

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Production Data

WM8983

PD, Rev 4.3, May 2010

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

7:4

ALCHLD

[3:0]

0000

(0ms)

ALC hold time before gain is

increased.

0000 = 0ms

0001 = 2.67ms

0010 = 5.33ms

0011 = 10.66ms

0100 = 21.32ms

0101 = 42.64ms

0110 = 85.28ms

0111 = 0.17s

1000 = 0.34s

1001 = 0.68s

1010 = 1.36s

1011 = 2.7s

1100 = 5.4s

1101 = 10.9s

1110 = 21.8 s

1111 = 43.7s

R34 (22h)

ALC Control

ALCMODE

Determines the ALC mode of

operation:

0 = ALC mode (Normal Operation)

1 = Limiter mode.

7:4

ALCDCY

[3:0]

0011

(13ms/6dB)

Decay (gain ramp-up) time

(ALCMODE ==0)

Per

step

Per

6dB

90% of

range

0000

410us

3.3ms

24ms

0001

820us

6.6ms

48ms

0010

1.64ms

13.1ms

192ms

… (time doubles with every step)

1010

higher

420ms

3.36s

24.576s

0011

(2.9ms/6dB)

Decay (gain ramp-up) time

(ALCMODE ==1)

Per

step

Per

6dB

90% of

range

0000

90.8us

726.4us

5.26ms

0001

181.6us

1.453ms

10.53m

0010

363.2us

2.905ms

21.06m

… (time doubles with every step)

1010

93ms

744ms

5.39s

3:0

ALCATK

[3:0]

0010

(832us/6dB)

ALC attack (gain ramp-down) time

(ALCMODE == 0)

Per

step

Per

6dB

90% of

range

0000

104us

832us

6ms

0001

208us

1.66ms

12ms

0010

416us

3.32ms

24.1ms

… (time doubles with every step)

1010

higher

106ms

852ms

6.18s

WM8983GEFL/V Datasheet(PDF) 45 Page - Wolfson Microelectronics plc

WM8983GEFL/V Datasheet(HTML) 45 Page - Wolfson Microelectronics plc

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