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WM8711LEFL PDF预览

WM8711LEFL

更新时间： 2024-11-22 21:21:07
品牌 Logo 应用领域
凌云 - CIRRUS /
页数 文件大小 规格书
42页 433K
描述
D/A Converter, 2 Func, PQCC28,

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中文翻译

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WM8711LEFL 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：QCCN, LCC28,.2SQ,20Reach Compliance Code：compliant
风险等级：5.91转换器类型：D/A CONVERTER
JESD-30 代码：S-PQCC-N28位数：24
功能数量：2端子数量：28
最高工作温度：85 °C最低工作温度：-25 °C
封装主体材料：PLASTIC/EPOXY封装代码：QCCN
封装等效代码：LCC28,.2SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER电源：1.5,1.8/3.3 V
认证状态：Not Qualified子类别：Other Converters
表面贴装：YES技术：CMOS
温度等级：OTHER端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
Base Number Matches：1

WM8711LEFL 数据手册

 浏览型号WM8711LEFL的Datasheet PDF文件第2页浏览型号WM8711LEFL的Datasheet PDF文件第3页浏览型号WM8711LEFL的Datasheet PDF文件第4页浏览型号WM8711LEFL的Datasheet PDF文件第5页浏览型号WM8711LEFL的Datasheet PDF文件第6页浏览型号WM8711LEFL的Datasheet PDF文件第7页 
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 20mWat 3.3V  
Down to 6mWat 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)  
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  
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 or the smaller 28-Pin QFN (5x5x0.9 mm  
Body) package.  
•
•
•
•
Stereo Audio Outputs  
Output Volume and Mute Controls  
Highly Efficient Headphone Driver  
28-Pin SSOP or 28-Pin 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  
W
HPVDD  
HPGND  
WM8711  
CONTROL INTERFACE  
RLINEIN  
MUTE  
H/P  
DRIVER  
VOL/  
MUTE  
RHPOUT  
+6 to -73dB  
1 dB Steps  
DAC  
Σ
DACDAT  
DACLRC  
ROUT  
LOUT  
DIGITAL  
FILTERS  
BCLK  
+6 to -73dB  
1 dB Steps  
DAC  
Σ
VOL/  
MUTE  
H/P  
DRIVER  
LHPOUT  
LLINEIN  
MUTE  
CLKIN  
DIVIDER  
(Div x1,  
x2)  
CLKIN  
DIVIDER  
(Div x1,  
x2)  
OSC  
WOLFSONMICROELECTRONICS plc  
Production Data December 2002, Rev 3.1  
Copyright 2002 Wolfson Microelectronics plc  
www.wolfsonmicro.com  
1234567...42

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