WM8758 datasheet(39/90 Pages) WOLFSON

Part #	WM8758

Description	Stereo CODEC with Headphone Driver and Line Out

PDF	90 Pages

Scroll/Zoom	100%

Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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39 / 90 page

Production Data

WM8758B

PD, Rev 4.4, January 2012

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R32

ALC Control

8:7

ALCSEL

ALC function select

00 = ALC disabled

01 = Right channel ALC enabled

10 = Left channel ALC enabled

11 = Both channels ALC enabled

5:3

ALCMAXGAIN

[2:0]

111

(+35.25dB)

Set Maximum Gain of PGA

111 = +35.25dB

110 = +29.25dB

101 = +23.25dB

100 = +17.25dB

011 = +11.25dB

010 = +5.25dB

001 = -0.75dB

000 = -6.75dB

2:0

ALCMINGAIN

[2:0]

000 (-12dB)

Set minimum gain of PGA

000 = -12dB

001 = -6dB

010 = 0dB

011 = +6dB

100 = +12dB

101 = +18dB

110 = +24dB

111 = +30dB

R33

ALC Control

7:4

ALCHLD

[3:0]

0000

(0ms)

ALC hold time before gain is

increased.

0000 = 0ms

0001 = 2.67ms

0010 = 5.33ms

… (time doubles with every step)

1111 = 43.7s

3:0

ALCLVL

[3:0]

1011

(-6dB)

ALC target – sets signal level at ADC

input

1111 = -1.5dBFS

1110 = -1.5dBFS

1101 = -3dBFS

1100 = -4.5dBFS

...... (-1.5dB steps)

0001 = -21dBFS

0000 = -22.5dBFS

WM8758 Datasheet(PDF) 39 Page - Wolfson Microelectronics plc

WM8758 Datasheet(HTML) 39 Page - Wolfson Microelectronics plc

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