WM8998 datasheet(72/307 Pages) WOLFSON

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WM8998

Production Data

PD, October 2014, Rev 4.0

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

DRC1_ANTICLI

DRC1 Anti-clip Enable

0 = Disabled

1 = Enabled

DRC1_WSEQ_S

IG_DET_ENA

DRC1 Signal Detect Write

Sequencer Select

0 = Disabled

1 = Enabled

R3713

(0E81h)

DRC1 ctrl2

12:9

DRC1_ATK [3:0]

0100

DRC1 Gain attack rate

(seconds/6dB)

0000 = Reserved

0001 = 181us

0010 = 363us

0011 = 726us

0100 = 1.45ms

0101 = 2.9ms

0110 = 5.8ms

0111 = 11.6ms

1000 = 23.2ms

1001 = 46.4ms

1010 = 92.8ms

1011 = 185.6ms

1100 to 1111 = Reserved

8:5

DRC1_DCY [3:0]

1001

DRC1 Gain decay rate

(seconds/6dB)

0000 = 1.45ms

0001 = 2.9ms

0010 = 5.8ms

0011 = 11.6ms

0100 = 23.25ms

0101 = 46.5ms

0110 = 93ms

0111 = 186ms

1000 = 372ms

1001 = 743ms

1010 = 1.49s

1011 = 2.97s

1100 to1111 = Reserved

4:2

DRC1_MINGAIN

[2:0]

100

DRC1 Minimum gain to attenuate

audio signals

000 = 0dB

001 = -12dB

010 = -18dB

011 = -24dB

100 = -36dB

101 = Reserved

11X = Reserved

1:0

DRC1_MAXGAI

N [1:0]

DRC1 Maximum gain to boost audio

signals (dB)

00 = 12dB

01 = 18dB

10 = 24dB

11 = 36dB

WM8998 Datasheet(PDF) 72 Page - Wolfson Microelectronics plc

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