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WM8770SIFT

更新时间： 2024-09-25 04:17:55
品牌 Logo 应用领域
欧胜 - WOLFSON 解码器编解码器
页数 文件大小 规格书
52页 555K
描述
24-bit, 192kHz 8-Channel Codec with Volume Control

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中文翻译

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WM8770SIFT 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, Right Justified or DSP  
16/20/24/32 bit Word Lengths  
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.  
•
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, right  
justified and DSP 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  
AIN1L  
AIN1R  
STEREO  
DAC  
VOUT1L  
VOUT1R  
LOW  
PASS  
FILTERS  
AIN2L  
AIN2R  
AIN3L  
AIN3R  
AIN4L  
AIN4R  
STEREO  
DAC  
VOUT2L  
VOUT2R  
LOW  
PASS  
FILTERS  
AUDIO INTERFACE  
AND  
AIN5L  
AIN5R  
STEREO  
ADC  
AIN6L  
AIN6R  
AIN7L  
AIN7R  
STEREO  
DAC  
VOUT3L  
VOUT3R  
DIGITAL FILTERS  
LOW  
PASS  
FILTERS  
AIN8L  
AIN8R  
VOUT4L  
VOUT4R  
LOW  
PASS  
FILTERS  
STEREO  
DAC  
AINOPL  
AINOPR  
W
RECL  
RECR  
CONTROL INTERFACE  
MUTE  
WM8770  
CCB is a trademark of SANYO ELECTRIC CO., LTD  
CCB is SANYO’s original bus format and all the bus addresses are controlled by SANYO.  
WOLFSON MICROELECTRONICS plc  
Production Data, June 2005, Rev 4.1  
Copyright 2005 Wolfson Microelectronics plc  
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/  
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WM8770SIFT/V CIRRUS

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WM8770SIFV WOLFSON

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WM8771FT WOLFSON

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WM8771FTV WOLFSON

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WM8771FV WOLFSON

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 		24-bit, 192kHz 8-Channel Codec
WM8771IFT/V CIRRUS

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WM8772 WOLFSON

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 		24 BIT 192KHZ 6 CHANNEL CODEC WITH VOLUME CONTROL
WM8772_05 WOLFSON

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 		24-bit, 192kHz 6-Channel Codec with Volume Control

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