WM1811A datasheet(79/328 Pages) WOLFSON

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Production Data

WM1811A

PD, November 2013, Rev 4.1

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

2:0

AIF2DRC_LO_C

OMP [2:0]

000

AIF2 DRC Compressor slope (lower

region)

000 = 1 (no compression)

001 = 1/2

010 = 1/4

011 = 1/8

100 = 0

101 = Reserved

11X = Reserved

R1347 (0543h)

AIF2DRC (4)

10:5

AIF2DRC_KNEE

_IP [5:0]

000000

AIF2 DRC 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

AIF2DRC_KNEE

_OP [4:0]

00000

AIF2 DRC Output signal at the

Compressor ‘Knee’.

00000 = 0dB

00001 = -0.75dB

00010 = -1.5dB

… (-0.75dB steps)

11110 = -22.5dB

11111 = Reserved

R1348 (0544h)

AIF2DRC (5)

9:5

AIF2DRC_KNEE

2_IP [4:0]

00000

AIF2 DRC 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

AIF2DRC_NG_ENA = 1.

4:0

AIF2DRC_KNEE

2_OP [4:0]

00000

AIF2 DRC 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

AIF2DRC_KNEE2_OP_ENA = 1.

Table 28 AIF2 DRC Controls

WM1811A Datasheet(PDF) 79 Page - Wolfson Microelectronics plc

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