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WM8775_06 PDF预览

WM8775_06

更新时间: 2024-11-23 04:17:55
品牌 Logo 应用领域
欧胜 - WOLFSON 复用器
页数 文件大小 规格书
39页 384K
描述
24-bit, 96kHz ADC with 4 Channel I/P Multiplexer

WM8775_06 数据手册

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WM8775  
w
24-bit, 96kHz ADC with 4 Channel I/P Multiplexer  
DESCRIPTION  
FEATURES  
Audio Performance  
The WM8775 is a high performance, stereo audio ADC  
with a 4 channel input mixer. The WM8775 is ideal for  
digitising multiple analogue sources for surround sound  
processing applications for home hi-fi, automotive and  
other audio visual equipment.  
102dB SNR (‘A’ weighted @ 48kHz)  
-90dB THD  
ADC Sampling Frequency: 32kHz – 96kHz  
Four stereo ADC inputs with analogue gain adjust from  
+24dB to –21dB in 0.5dB steps  
A stereo 24-bit multi-bit sigma delta ADC is used with a  
four stereo channel input selector. Each channel has  
programmable gain control. Digital audio output word  
lengths from 16-32 bits and sampling rates from 32kHz  
to 96kHz are supported.  
Digital gain adjust from -21.5dB to -103dB.  
Programmable Automatic Level Control (ALC) or Limiter on  
ADC input  
3-Wire SPI Compatible or 2-wire Serial Control Interface  
Master or Slave Clocking Mode  
The audio data interface supports I2S, left justified, right  
justified and DSP digital audio formats.  
Programmable Audio Data Interface Modes  
I2S, Left, Right Justified or DSP  
The device is controlled via a 2 or 3 wire serial interface.  
The interface provides access to all features including  
channel selection, volume controls, mutes, de-emphasis  
and power management facilities.  
16/20/24/32 bit Word Lengths  
2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation  
The device is available in a 28-lead SSOP package. The  
WM8775 is software compatible with the WM8776.  
APPLICATIONS  
Surround Sound AV Processors and Hi-Fi systems  
Automotive Audio  
BLOCK DIAGRAM  
WOLFSON MICROELECTRONICS plc  
Production Data, June 2006, Rev 4.1  
Copyright 2006 Wolfson Microelectronics plc  
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/  

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