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WM8781GEDR PDF预览

WM8781GEDR

更新时间: 2024-11-23 02:54:27
品牌 Logo 应用领域
欧胜 - WOLFSON /
页数 文件大小 规格书
20页 230K
描述
24-Bit, 192kHz Stereo ADC

WM8781GEDR 数据手册

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WM8781  
w
24-Bit, 192kHz Stereo ADC  
DESCRIPTION  
FEATURES  
SNR 102dB (‘A’ weighted @ 48kHz)  
THD -90dB (at –1dB)  
Sampling Frequency: 8 – 192kHz  
Master or Slave Clocking Mode  
System Clock (MCLK): 128fs, 192fs, 256fs, 384fs, 512fs,  
768fs  
The WM8781 is a high performance, low cost stereo audio  
ADC designed for recordable media applications.  
The device offers stereo line level inputs along with two  
control input pins (FORMAT, IWL) to allow operation of the  
audio interface in three industry standard modes. An  
internal op-amp is integrated on the front end of the chip to  
Audio Data Interface Modes  
16-24 bit I2S, 16-24 bit Left, 16-24 bit Right Justified  
accommodate analogue input signals greater than 1Vrms  
.
-
The device also has a high pass filter to remove residual  
DC offsets.  
Supply Voltages  
-
-
Analogue 2.7 to 5.5V  
Digital core: 2.7V to 3.6V  
WM8781 offers Master or Slave mode clocking schemes.  
A control input pin M/S is used to allow Slave mode  
operation or Master mode operation. A stereo 24-bit multi-  
bit sigma-delta ADC is used with 128x, 64x or 32x over-  
sampling, according to sample rate. Digital audio output  
word lengths from 16-24 bits and sampling rates from  
8kHz to 192kHz are supported.  
20-lead SSOP package  
APPLICATIONS  
Recordable DVD Players  
Personal Video Recorders  
STB  
Studio Audio Processing Equipment  
The device is a hardware controlled device and is supplied  
in a 20-lead SSOP package.  
BLOCK DIAGRAM  
Production Data, April 2006, Rev 4.1  
WOLFSON MICROELECTRONICS plc  
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/  
Copyright 2006 Wolfson Microelectronics plc  

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