WM8994ECSSLASHR datasheet(78/363 Pages) CIRRUS

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WM8994

Rev 4.6

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R1090 (0442h)

AIF1 DRC1 (3)

15:12

AIF1DRC1_NG_

MINGAIN [3:0]

0000

AIF1 DRC1 Minimum gain to

attenuate audio signals when the

noise gate is active.

0000 = -36dB

0001 = -30dB

0010 = -24dB

0011 = -18dB

0100 = -12dB

0101 = -6dB

0110 = 0dB

0111 = 6dB

1000 = 12dB

1001 = 18dB

1010 = 24dB

1011 = 30dB

1100 = 36dB

1101 to 1111 = Reserved

11:10

AIF1DRC1_NG_

EXP [1:0]

AIF1 DRC1 Noise Gate slope

00 = 1 (no expansion)

01 = 2

10 = 4

11 = 8

9:8

AIF1DRC1_QR_

THR [1:0]

AIF1 DRC1 Quick-release threshold

(crest factor in dB)

00 = 12dB

01 = 18dB

10 = 24dB

11 = 30dB

7:6

AIF1DRC1_QR_

DCY [1:0]

AIF1 DRC1 Quick-release decay

rate (seconds/6dB)

00 = 0.725ms

01 = 1.45ms

10 = 5.8ms

11 = Reserved

5:3

AIF1DRC1_HI_C

OMP [2:0]

000

AIF1 DRC1 Compressor slope

(upper region)

000 = 1 (no compression)

001 = 1/2

010 = 1/4

011 = 1/8

100 = 1/16

101 = 0

110 = Reserved

111 = Reserved

2:0

AIF1DRC1_LO_

COMP [2:0]

000

AIF1 DRC1 Compressor slope

(lower region)

000 = 1 (no compression)

001 = 1/2

010 = 1/4

011 = 1/8

100 = 0

101 = Reserved

11X = Reserved

WM8994ECS/R Datenblatt(PDF) 78 Page - Cirrus Logic

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