WM8281ECSSLASHR datasheet(88/392 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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WM8281

Rev 4.0

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

2:0

DRC2_LO_COM

P [2:0]

000

DRC2 Compressor slope (lower

region)

000 = 1 (no compression)

001 = 1/2

010 = 1/4

011 = 1/8

100 = 0

101 = Reserved

11X = Reserved

R3724

(0E8Ch)

DRC2 ctrl4

10:5

DRC2_KNEE_IP

[5:0]

000000

DRC2 Input signal level at the

Compressor ‘Knee’.

000000 = 0dB

000001 = -0.75dB

000010 = -1.5dB

… (-0.75dB steps)

111100 = -45dB

111101 = Reserved

11111X = Reserved

4:0

DRC2_KNEE_O

P [4:0]

00000

DRC2 Output signal at the

Compressor ‘Knee’.

00000 = 0dB

00001 = -0.75dB

00010 = -1.5dB

… (-0.75dB steps)

11110 = -22.5dB

11111 = Reserved

R3725

(0E8Dh)

DRC2 ctrl5

9:5

DRC2_KNEE2_I

P [4:0]

00000

DRC2 Input signal level at the Noise

Gate threshold ‘Knee2’.

00000 = -36dB

00001 = -37.5dB

00010 = -39dB

… (-1.5dB steps)

11110 = -81dB

11111 = -82.5dB

Only applicable when

DRC2_NG_ENA = 1.

4:0

DRC2_KNEE2_

OP [4:0]

00000

DRC2 Output signal at the Noise

Gate threshold ‘Knee2’.

00000 = -30dB

00001 = -31.5dB

00010 = -33dB

… (-1.5dB steps)

11110 = -75dB

11111 = -76.5dB

Only applicable when

DRC2_KNEE2_OP_ENA = 1.

Table 16 DRC2 Control Registers

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