WM8281ECSSLASHR datasheet(87/392 Pages) CIRRUS

Il numero della parte	WM8281ECS/R

Spiegazioni elettronici	Low Power Audio System with Ambient Noise Cancellation and Echo Cancellation

PDF	392 Pages

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Produttore elettronici	CIRRUS [Cirrus Logic]

Homepage	http://www.cirrus.com

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87 / 392 page

WM8281

Rev 4.0

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

1:0

DRC2_MAXGAI

N [1:0]

DRC2 Maximum gain to boost audio

signals (dB)

00 = 12dB

01 = 18dB

10 = 24dB

11 = 36dB

R3723

(0E8Bh)

DRC2 ctrl3

15:12

DRC2_NG_MIN

GAIN [3:0]

0000

DRC2 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

DRC2_NG_EXP

[1:0]

DRC2 Noise Gate slope

00 = 1 (no expansion)

01 = 2

10 = 4

11 = 8

9:8

DRC2_QR_THR

[1:0]

DRC2 Quick-release threshold

(crest factor in dB)

00 = 12dB

01 = 18dB

10 = 24dB

11 = 30dB

7:6

DRC2_QR_DCY

[1:0]

DRC2 Quick-release decay rate

(seconds/6dB)

00 = 0.725ms

01 = 1.45ms

10 = 5.8ms

11 = Reserved

5:3

DRC2_HI_COM

P [2:0]

011

DRC2 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

WM8281ECS/R Scheda tecnica(PDF) 87 Page - Cirrus Logic

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