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XWM8731EDS

更新时间： 2024-09-29 22:10:51
品牌 Logo 应用领域
欧胜 - WOLFSON 解码器驱动器编解码器便携式
页数 文件大小 规格书
56页 594K
描述
Portable Internet Audion CODEC with Headphone Driver and Programmable Sample Rates

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中文翻译

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XWM8731EDS 技术参数

是否Rohs认证： 不符合生命周期：Transferred
Reach Compliance Code：unknown风险等级：5.69
Is Samacsys：N湿度敏感等级：1
Base Number Matches：1

XWM8731EDS 数据手册

 浏览型号XWM8731EDS的Datasheet PDF文件第2页浏览型号XWM8731EDS的Datasheet PDF文件第3页浏览型号XWM8731EDS的Datasheet PDF文件第4页浏览型号XWM8731EDS的Datasheet PDF文件第5页浏览型号XWM8731EDS的Datasheet PDF文件第6页浏览型号XWM8731EDS的Datasheet PDF文件第7页 
WM8731  
Portable Internet Audio CODEC with  
Headphone Driver and Programmable Sample Rates  
Advanced Information, Rev 2.0, February 2001  
DESCRIPTION  
FEATURES  
•
Audio Performance  
The WM8731 is a low power stereo CODEC with an  
integrated headphone driver. It offers the user the unique  
ability to independently program the ADC and DAC sample  
rates from a single clock source. The WM8731 is designed  
specifically for portable MP3 audio and speech players and  
recorders. The WM8731 is also ideal for MD, CD-RW  
machines and DAT recorders.  
−
−
−
−
97dB SNR (‘A’ weighted @ 48kHz) ADC  
100dB SNR (‘A’ weighted @ 48kHz) DAC  
1.42 – 3.6V Digital Supply Operation  
2.7 – 3.6V Analogue Supply Operation  
•
•
•
•
ADC and DAC Sampling Frequency: 8kHz – 96kHz  
Selectable ADC High Pass Filter  
2 or 3-Wire MPU Serial Control Interface  
Programmable Audio Data Interface Modes  
Stereo line and mono microphone level audio inputs are  
provided, along with a mute function, programmable line  
level volume control and a bias voltage output suitable for  
an electret type microphone.  
−
−
−
I2S, Left, Right Justified or DSP  
16/20/24/32 bit Word Lengths  
Master or Slave Clocking Mode  
Stereo 24-bit multi-bit sigma delta ADCs and DACs are  
used with oversampling digital interpolation and decimation  
filters. Digital audio input word lengths from 16-32 bits and  
sampling rates from 8kHz to 96kHz are supported.  
•
•
•
•
•
•
•
Stereo Audio Inputs and Outputs  
Microphone Input and Electret Bias with Side Tone Mixer  
Input and Output Volume and Mute Controls  
Highly Efficient Headphone Driver  
Playback Mode Power Consumption < 18mW  
Analogue Pass Through Power Consumption < 9mW  
28-Pin SSOP Package  
Stereo audio outputs are buffered for driving headphones  
from a programmable volume control, line level outputs are  
also provided along with anti-thump mute and power  
up/down circuitry.  
The device is controlled via a 2 or 3 wire serial interface.  
The interface provides access to all features including  
volume controls, mutes, de-emphasis and extensive power  
management facilities. The device is available in a small 28-  
pin SSOP package.  
APPLICATIONS  
•
•
Portable MP3 Players and Recorders  
CD and Minidisc Recorders  
BLOCK DIAGRAM  
AVDD  
CONTROL INTERFACE  
WM8731  
VMID  
HPVDD  
Bypass  
MUTE  
HPGND  
AGND  
ATTEN/  
MUTE  
+6 to -73dB  
1 dB Steps  
Side Tone  
H/P  
DRIVER  
VOL/  
MUTE  
MICBIAS  
RLINEIN  
RHPOUT  
VOL  
MUTE  
MUTE  
MUTE  
ADC  
ADC  
MUX  
DAC  
DAC  
Σ
Σ
+12 to -34.5dB,  
1.5dB Steps  
ROUT  
LOUT  
0dB/  
20dB  
DIGITAL  
FILTERS  
MICIN  
MUTE  
MUTE  
MUX  
MUTE  
VOL  
LLINEIN  
VOL/  
MUTE  
H/P  
DRIVER  
LHPOUT  
+12 to -34.5dB,  
1.5dB Steps  
Side Tone  
+6 to -73dB  
1 dB Steps  
ATTEN/  
MUTE  
MUTE  
CLKIN  
DIVIDER  
CLKOUT  
DIVIDER  
Bypass  
OSC  
DIGTAL AUDIO INTERFACE  
(Div x1, x2)  
(Div x1, x2)  
WOLFSON MICROELECTRONICS LTD  
Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK  
Tel: +44 (0) 131 667 9386  
Fax: +44 (0) 131 667 5176  
Email: sales@wolfson.co.uk  
www.wolfsonmicro.com  
Advanced Information data sheets  
contain preliminary data on new products  
in the preproduction phase of  
development. Supplementary data will be  
published at a later date.  
2001 Wolfson Microelectronics Ltd.  
1234567...56

中文翻译

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与XWM8731EDS相关器件

型号 品牌 获取价格 描述 数据表
XWM8731EDS/R CIRRUS

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 		PCM Codec, 1-Func, CMOS, PDSO28, 10.20 X 5.30 MM, 1.75 MM HEIGHT, MO-150AH, SSOP-28
XWM8731EFL CIRRUS

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 		PCM Codec, 1-Func, CMOS, PQCC28, 5 X 5 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, PLASTIC, MO-220-
XWM8731EFL/R CIRRUS

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 		PCM Codec, 1-Func, CMOS, PQCC28, 5 X 5 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, PLASTIC, MO-220-
XWM8733ED WOLFSON

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 		102dB Stereo DAC
XWM8734EDS WOLFSON

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 		Stereo Audio CODEC
XWM8734EDS/R WOLFSON

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 		Stereo Audio CODEC
XWM8734EDS/RV CIRRUS

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 		PCM Codec, 1-Func, CMOS, PDSO20, 7.20 X 5.30 MM, 1.75 MM HEIGHT, LEAD FREE, MO-150AE, SSOP
XWM8734EDS/V CIRRUS

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 		PCM Codec, 1-Func, CMOS, PDSO20, 7.20 X 5.30 MM, 1.75 MM HEIGHT, LEAD FREE, MO-150AE, SSOP
XWM8739EDS CIRRUS

获取价格

 		ADC, Delta-Sigma, 24-Bit, 2 Func, CMOS, PDSO20
XWM8739SEDS/R CIRRUS

获取价格

 		ADC, Delta-Sigma, 24-Bit, 2 Func, CMOS, PDSO20

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