WM8721 datasheet(29/37 Pages) WOLFSON

Il numero della parte	WM8721

Spiegazioni elettronici	Internet Audio DAC with Integrated Headphone Driver

PDF	37 Pages

Scroll/Zoom	100%

Produttore elettronici	WOLFSON [Wolfson Microelectronics plc]

Homepage	http://www.wolfsonmicro.com

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29 / 37 page

Production Data

WM8721 / WM8721L

PD Rev 4.0 November 2004

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

6:0

RHPVOL

[6:0]

1111001

( 0dB )

Right Channel Headphone Output

Volume Control

1111111 = +6dB

. . 1dB steps down to

0110000 = -73dB

0000000 to 0101111 = MUTE

RZCEN

Right Channel Zero Cross detect

Enable

1 = Enable

0 = Disable

0000011

Right

Headphone Out

RLHPBOTH

Right to Left Channel Headphone

Volume, Mute and Zero Cross Data

Load Control

1 = Enable Simultaneous Load of

RHPVOL[6:0] and RZCEN to

LHPVOL[6:0] and LZCEN

0 = Disable Simultaneous Load

0000100

Audio Path

Control

DACSEL

DAC Select (Analogue)

1 = Select DAC

0 = Don’t select DAC

2:1

DEEMP[1:0]

De-emphasis Control (Digital)

11 = 48kHz

10 = 44.1kHz

01 = 32kHz

00 = Disable

0000101

Digital Audio

Path Control

DACMU

DAC Soft Mute Control (Digital)

1 = Enable soft mute

0 = Disable soft mute

DACPD

DAC Power Down

1 = Enable Power Down

0 = Disable Power Down

OUTPD

Outputs Power Down

1 = Enable Power Down

0 = Disable Power Down

0000110

Power Down

Control

POWEROFF

POWEROFF mode

1 = Enable POWEROFF

0 = Disable POWEROFF

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