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WM8775SEDS/RV PDF预览

WM8775SEDS/RV

更新时间: 2024-11-26 15:57:59
品牌 Logo 应用领域
凌云 - CIRRUS 光电二极管转换器
页数 文件大小 规格书
39页 342K
描述
ADC, Delta-Sigma, 24-Bit, 1 Func, CMOS, PDSO28,

WM8775SEDS/RV 技术参数

是否Rohs认证:符合生命周期:Obsolete
包装说明:SSOP-28Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.8
Is Samacsys:N转换器类型:ADC, DELTA-SIGMA
JESD-30 代码:R-PDSO-G28长度:10.2 mm
模拟输入通道数量:4位数:24
功能数量:1端子数量:28
最高工作温度:85 °C最低工作温度:-25 °C
输出位码:BINARY输出格式:SERIAL
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
采样速率:0.096 MHz座面最大高度:2 mm
标称供电电压:5 V表面贴装:YES
技术:CMOS温度等级:OTHER
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL宽度:5.3 mm
Base Number Matches:1

WM8775SEDS/RV 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  
W
WM8775  
AINOPL  
AINOPR  
AINVGL  
AINVGR  
AIN1L  
AIN1R  
AUDIO INTERFACE  
MCLK  
AIN2L  
AIN2R  
AIN3L  
AIN3R  
DOUT  
STEREO  
ADC  
ALC  
AND  
ADCLRC  
BCLK  
DIGITAL FILTERS  
AIN4L  
AIN4R  
VMID  
CONTROL INTERFACE  
WOLFSON MICROELECTRONICS plc  
Production Data, October 2008, Rev 4.4  
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/  
Copyright ©2008 Wolfson Microelectronics plc  

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