Datasheet > WM8711

WM8711

更新时间： 2024-09-14 22:35:43

品牌	Logo	应用领域
欧胜 - WOLFSON		驱动器
页数	文件大小	规格书
36页	379K
描述
Internet Audio DAC with Integrated Headphone Driver

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WM8711 数据手册

WM8711

Internet Audio DAC with Integrated Headphone Driver

Product Preview, Novembert 2000, 1.2

DESCRIPTION

FEATURES

•

Audio Performance

The WM8711 is a low power stereo DAC with an integrated

headphone driver. The WM8711 is designed specifically for

portable MP3 audio and speech players. The WM8711 is

also ideal for MD, CD machines and DAT players.

100dB SNR (‘A’ weighted @ 48kHz) DAC

1.42 – 3.6V Digital Supply Operation

2.7 – 3.6V Analogue Supply Operation

•

DAC Sampling Frequency: 8KHz – 96KHz

2 or 3-Wire MPU Serial Control Interface

Programmable Audio Data Interface Modes

Stereo 24-bit multi-bit sigma delta DACs are used with

oversampling digital interpolation filters. Digital audio input

word lengths from 16-32 bits and sampling rates from 8KHz

to 96KHz are supported.

I²S, Left, Right Justified or DSP

16/20/24/32 bit Word Lengths

Master or Slave Clocking Mode

Stereo audio outputs are buffered for driving headphones

from a programmable volume control, line level outputs are

also provided along with anti-thump mute and power

up/down circuitry.

•

Stereo Audio Outputs

Output Volume and Mute Controls

Highly Efficient Headphone Driver

Playback Mode Power Consumption < 18mW

28-Pin SSOP Package

The device is controlled via a 2 or 3 wire serial interface.

The interface provides access to all features including

volume controls, mutes, de-emphasis and extensive power

management facilities. The device is available in a small 28-

pin SSOP package.

APPLICATIONS

•

Portable MP3 Players

CD and Minidisc Players

A USB mode is provided where all audio rates can be

derived from a single 12MHz MCLK, saving on the need for

a PLL or multiple crystals.

BLOCK DIAGRAM

(21)

(16)

(22) (23)

(24)

(14)

(15)

(8) HPVDD

CONTROL INTERFACE

(11) HPGND

WM8711

(19) RLINEIN

(10) RHPOUT

MUTE

H/P

DRIVER

VOL/

MUTE

+6 to -73dB

1 dB Steps

DAC

DACDAT (4)

DACLRC (5)

(13) ROUT

(12) LOUT

DIGITAL

FILTERS

BCLK (3)

+6 to -73dB

1 dB Steps

VOL/

MUTE

H/P

DRIVER

(9) LHPOUT

(20) LLINEIN

MUTE

CLKIN

DIVIDER

(Div x1, x2)

CLKIN

DIVIDER

(Div x1, x2)

OSC

(26) (25)

(2)

(27)

(1)

(28)

WOLFSON MICROELECTRONICS LTD

Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK

Tel: +44 (0) 131 667 9386

Fax: +44 (0) 131 667 5176

Email: sales@wolfson.co.uk

Product Preview data sheets contain

specifications for products in the formative

phase of development. These products may

be changed or discontinued without notice.

2000 Wolfson Microelectronics Ltd.

http://www.wolfson.co.uk

12 3 4 5 6 7...36

中文翻译

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与WM8711相关器件

型号	品牌	获取价格	描述	数据表
WM8711_06	WOLFSON	获取价格	Internet Audio DAC with Integrated Headphone Amplifier
WM8711_10	WOLFSON	获取价格	Internet Audio DAC with Integrated Headphone Amplifier
WM8711BL	WOLFSON	获取价格	Ultra-Small Audio DAC with Headphone Amplifier
WM8711BL_07	WOLFSON	获取价格	Ultra-Small Audio DAC with Headphone Amplifier
WM8711BL_11	WOLFSON	获取价格	Ultra-Small Audio DAC with Headphone Amplifier
WM8711BLGEFL/RV	WOLFSON	获取价格	Ultra-Small Audio DAC with Headphone Amplifier
WM8711BLGEFL/V	WOLFSON	获取价格	Ultra-Small Audio DAC with Headphone Amplifier
WM8711CBLGEFL/RV	CIRRUS	获取价格	Consumer Circuit, CMOS, PQCC24, 4 X 4 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTI
WM8711EDS	WOLFSON	获取价格	portable digital audio solutions
WM8711GEFL	CIRRUS	获取价格	D/A Converter

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