Datasheet > WM8711BL_07

WM8711BL_07

更新时间： 2024-11-22 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
43页	487K
描述
Ultra-Small Audio DAC with Headphone Amplifier

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数据手册

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WM8711BL_07 数据手册

WM8711BL

Ultra-Small Audio DAC with Headphone Amplifier

DESCRIPTION

FEATURES

•

Audio Performance

The WM8711BL is an ultra-small, low power stereo DAC

with an integrated headphone driver. It is designed

specifically for portable audio systems requiring hi-fi stereo

playback through headphones.

DAC SNR 97dB (‘A’ weighted) at AVDD = 3.3V

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

•

Low Power Headphone Playback

Down to 6mW at 1.8V

1.42 – 3.6V Digital Supply Operation

1.8 – 3.6 V Analogue Supply Operation

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.

•

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

•

Stereo Audio Outputs

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 an ultra-

small 24-lead QFN (4x4x0.9 mm Body) package.

Output Volume and Mute Controls

Highly Efficient Headphone Driver

24-lead QFN (4x4x0.9 mm) package

APPLICATIONS

A USB clocking 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.

•

Multimedia Mobile Phones

Portable MP3 / CD Players

BLOCK DIAGRAM

HPVDD

HPGND

WM8711B

CONTROL INTERFACE

RLINEIN

MUTE

H/P

DRIVER

VOL/

MUTE

RHPOUT

+6 to -73dB

1 dB Steps

DAC

DACDAT

ROUT

LOUT

DIGITAL

DACLRC

FILTERS

BCLK

+6 to -73dB

1 dB Steps

DAC

VOL/

MUTE

H/P

DRIVER

LHPOUT

LLINEIN

MUTE

CLKIN

DIVIDER

(Div x1,

x2)

CLKIN

DIVIDER

(Div x1,

x2)

OSC

WOLFSON MICROELECTRONICS plc

Production Data, April 2007, Rev 4.1

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

12 3 4 5 6 7...43

中文翻译

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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
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WM8711L	WOLFSON	获取价格	Internet Audio DAC with Integrated Headphone Amplifier
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