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WM8770SIFT/RV

更新时间： 2024-11-26 20:02:39
品牌 Logo 应用领域
凌云 - CIRRUS PC电信光电二极管电信集成电路
页数 文件大小 规格书
52页 509K
描述
PCM Codec, 1-Func, CMOS, PDSO64, 10 X 10 MM, 1 MM HEIGHT, LEAD FREE, MS-026ACD, TQFP-64

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WM8770SIFT/RV 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：TSSOP,Reach Compliance Code：compliant
HTS代码：8542.39.00.01风险等级：5.82
滤波器：YESJESD-30 代码：S-PDSO-G64
长度：10 mm功能数量：1
端子数量：64工作模式：SYNCHRONOUS
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
座面最大高度：1.2 mm标称供电电压：3.3 V
表面贴装：YES技术：CMOS
电信集成电路类型：PCM CODEC温度等级：INDUSTRIAL
端子形式：GULL WING端子节距：0.5 mm
端子位置：DUAL宽度：10 mm
Base Number Matches：1

WM8770SIFT/RV 数据手册

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WM8770  
w
24-bit, 192kHz 8-Channel CODEC with Volume Control  
DESCRIPTION  
FEATURES  
•
Audio Performance  
The WM8770 is a high performance, multi-channel audio  
codec. The WM8770 is ideal for surround sound processing  
applications for home hi-fi, automotive and other audio  
visual equipment.  
−
−
106dB SNR (‘A’ weighted @ 48kHz) DAC  
102dB SNR (‘A’ weighted @ 48kHz) ADC  
•
•
•
•
•
DAC Sampling Frequency: 8KHz – 192kHz  
ADC Sampling Frequency: 8KHz – 96kHz  
3-Wire SPI or CCB MPU Serial Control Interface  
Master or Slave Clocking Mode  
A stereo 24-bit multi-bit sigma delta ADC is used with an  
eight stereo channel input selector. Each channel has  
analogue domain mute and programmable gain control.  
Digital audio output word lengths from 16-32 bits and  
sampling rates from 8kHz to 96kHz are supported.  
Programmable Audio Data Interface Modes  
−
−
I2S, Left or Right Justified  
Four 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 192kHz are supported. Each DAC channel has  
independent analogue volume and mute control, with a set  
of input multiplexors allowing selection of an external 3  
channel stereo analogue input into these volume controls.  
16/20/24/32 bit Word Lengths  
•
Four Independent stereo DAC outputs with independent  
analogue and digital volume controls  
•
•
•
Analogue Bypass Path Feature  
Six channel selectable AUX input to the volume controls  
Eight stereo ADC inputs with analogue gain adjust from  
+19dB to –12dB in 1dB steps  
The audio data interface supports I2S, left justified and right  
justified digital audio formats.  
•
•
2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply  
Operation  
The device is controlled via a 3 wire serial interface. The  
interface provides access to all features including channel  
selection, volume controls, mutes, de-emphasis and power  
management facilities. The device is available in a 64-lead  
TQFP package.  
5V tolerant digital inputs  
APPLICATIONS  
•
•
Surround Sound AV Processors and Hi-Fi systems  
Automotive Audio  
BLOCK DIAGRAM  
WOLFSON MICROELECTRONICS plc  
Production Data, March 2011, Rev 4.3  
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews  
Copyright ©2011 Wolfson Microelectronics plc  
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