Datasheet > WM8711_06

WM8711_06

更新时间： 2024-11-05 03:54:39

品牌	Logo	应用领域
欧胜 - WOLFSON		放大器
页数	文件大小	规格书
47页	526K
描述
Internet Audio DAC with Integrated Headphone Amplifier

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WM8711_06 数据手册

WM8711 / WM8711L

Internet Audio DAC with Integrated Headphone Amplifier

DESCRIPTION

FEATURES

•

Audio Performance

The WM8711 or WM8711L (WM8711/L) is a low power

stereo DAC with an integrated headphone driver. The

WM8711/L is designed specifically for portable MP3 audio

and speech players. The WM8711/L is also ideal for MD,

CD machines and DAT players.

DAC SNR 100dB (‘A’ weighted) at AVDD = 3.3V

DAC SNR 90dB (‘A’ weighted) at AVDD = 1.8V

(WM8711L)

•

Low Power Headphone Playback

Down to 20mW at 3.3V

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.

Down to 6mW at 1.8V (WM8711L)

1.42 – 3.6V Digital Supply Operation

2.7 – 3.6 V Analogue Supply Operation

1.8 – 3.6 V Analogue Supply Operation (‘L’ Variant)

•

DAC Sampling Frequency: 8KHz – 96KHz

2 or 3-Wire MPU Serial Control Interface

Programmable Audio Data Interface Modes

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.

I²S, Left, Right Justified or DSP

16/20/24/32 bit Word Lengths

Master or Slave Clocking Mode

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-

lead SSOP package or the smaller 28-lead QFN (5x5x0.9

mm Body) package.

•

Stereo Audio Outputs

Output Volume and Mute Controls

Highly Efficient Headphone Driver

28-lead SSOP or 28-lead QFN (5x5x0.9 mm) package

A USB mode is provided where all audio rates can be

derived from a single 12MHz or 24MHz MCLK, saving on

the need for a PLL or multiple crystals.

APPLICATIONS

•

Portable MP3 Players

CD and Minidisc Players

BLOCK DIAGRAM

WOLFSON MICROELECTRONICS plc

Production Data, September 2006, Rev 4.3

To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/

12 3 4 5 6 7...47

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