WM8591GEDSSLASHRV datasheet(41/50 Pages) WOLFSON

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WM8591

PP Rev 1.0 May 2005

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

7:0

LAG[7:0]

11001111

(0dB)

Attenuation Data for Left Channel ADC Gain in 0.5dB Steps:

00000000 : digital mute

00000001 : -103dB

………..

11001111 : 0dB

…………

11111110 : +23.5dB

11111111 : +24dB

R14 (0Eh)

0001110

Attenuation

ADCL

ZCLA

Left ADC Zero Cross Enable:

0: Zero cross disabled

1: Zero cross enabled

7:0

RAG[7:0]

11001111

(0dB)

Attenuation Data for Right Channel ADC Gain in 0.5dB Steps:

00000000 : digital mute

00000001 : -103dB

………..

11001111 : 0dB

…………

11111110 : +23.5dB

11111111 : +24dB

R15 (0Fh)

0001111

Attenuation

ADCR

ZCRA

Right ADC Zero Cross Enable:

0: Zero cross disabled

1: Zero cross enabled

3:0

LCT[3:0]

1110

(-1.5dB)

Limiter Threshold/ALC Target Level in 1.5dB Steps:

0000: -22.5dB FS

0001: -21dB FS

…

1101: -3dB FS

1110: -1.5dB FS

1111: 0dB FS

6:4

MAXGAIN[2:0]

111 (+24dB)

Set Maximum Gain of PGA:

111 : +24dB

110 : +20dB

….(-4dB steps)

010 : +4dB

001 : 0dB

000 : 0dB

R16 (10h)

0010000

ALC Control 1

8:7

LCSEL[1:0]

(Stereo)

LC Function Select

00 = Disabled

01 = Right channel only

10 = Left channel only

11 = Stereo

ALCZC

(zero cross on)

ALC Uses Zero Cross Detection Circuit.

R17 (11h)

0010001

ALC Control 2

LCMODE

ALC/Limiter Select:

0 = ALC Mode

1 = Limiter Mode

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