設為主頁(yè)  加入收藏
 
·I2S數字功放IC/內置DSP音頻算法功放芯片  ·馬達驅動(dòng)IC  ·2.1聲道單芯片D類(lèi)功放IC  ·內置DC/DC升壓模塊的D類(lèi)功放IC  ·鋰電充電管理IC/快充IC  ·無(wú)線(xiàn)遙控方案  ·直流無(wú)刷電機驅動(dòng)芯片
當前位置:首頁(yè)->方案設計
XC3S400AN 數字ADC音頻評估方案
文章來(lái)源: 更新時(shí)間:2012/3/8 19:02:00
在線(xiàn)咨詢(xún):
給我發(fā)消息
張代明 3003290139
給我發(fā)消息
小鄢 2850985542
給我發(fā)消息
李湘寧 2850985550
13713728695
 

Stellamar 公司的數字ADC采用Xilinx公司的 XC3S400AN FPGA,平均功耗低50%,面積低50%,非常低的工作電壓,高達14位的有效位,14位500Hz的SNR為90dB,數字典輸出,數字測試,過(guò)采樣,不會(huì )丟失碼,極低的失調漂移,能用在苛刻的環(huán)境.目標應用在語(yǔ)音,消費類(lèi)和工業(yè)中的傳感器,低功率手提設備以及軍事,空間和航空航天.本文介紹了數字ADC主要特性,數字ADC音頻評估板框架圖,電路圖和材料清單.
The Digital ADC is a digital core which provides analog functionality with all the benefits of a digital design process: shorter design cycles, lower risk, established design and layout tools, digital test methodology, and portability across process technologies.
The design is implemented with a small number of digital gates and only an LVDS input cell, a digital output cell and a handful of passive external components
The ADC provides up to 12 effective bits and up to 15 kHz of bandwidth making it ideal fit for both low frequency sensors and high-quality voice.
The benefits of the digital implementation include low voltage and low power process technologies where it excels in portable applications.
Alternative digital process technologies enable the Digital ADC to be used in high reliability and radiation hard environments where analog implementations are problematic.

數字ADC主要特性:
 On average 50% less power1
 On average 68% smaller area1
 Very low supply voltages
 Up to 14 effective bits
 Bandwidth
o 14 bits, 500 Hz with SNR 90 dB
o 12 bits, 4 kHz with SNR 72 dB
o 12 bits, 15 kHz with SNR 68 dB
 Process Technology Independent
 Digital Layout
 Digital Testing
 Oversampling
 No missing codes
 Extremely low offset drift
 Suitable for Rad-Hard environments

數字ADC目標應用:
 Voice
 Sensors (Consumer and Industrial)
 Low Power portable
 Military, Space and Avionics

數字ADC音頻評估板
Digital ADC Audio Evaluation Board
The Stellamar Digital ADC audio evaluation board provides a platform that contains two separate implementations of the Digital ADC targeted at audio applications. The ADC implementation is selected by switch 1 in SW1.
0) 11-bit ADC with a 5 kHz bandwidth. This ADC may be used for voice signals where higher frequency signals are not required, enabling a smaller digital design.
1) 10-bit ADC with a 20 kHz bandwidth. This ADC provides a higher bandwidth that is suitable for musical signals, but has a larger digital design.


圖1.數字ADC音頻評估板外形圖


圖2.數字ADC音頻評估板方框圖

圖3.數字ADC音頻評估板電路圖(1)

圖4.數字ADC音頻評估板電路圖(2)
數字ADC音頻評估板材料清單:

 
 
 
    相關(guān)產(chǎn)品  
 
 
·藍牙音箱的音頻功放/升壓/充電管
·單節鋰電內置升壓音頻功放IC選型
·HT7179 12V升24V內置
·5V USB輸入、三節鋰電升壓型
·網(wǎng)絡(luò )主播聲卡專(zhuān)用耳機放大IC-H
 
M12269 河北發(fā)電機組 HT366 ACM8629 HT338 

業(yè)務(wù)洽談:手機:13713728695(微信同號)   QQ:3003207580  EMAIL:panbo@szczkjgs.com   聯(lián)系人:潘波

地址:深圳市寶安西鄉航城大道航城創(chuàng )新創(chuàng )業(yè)園A5棟307/309

版權所有:深圳市永阜康科技有限公司  備案號:粵ICP備17113496號

在线亚洲人成电影_中文有码国产精品欧美激情_免费大片一级a一级久久三_av天堂东京热无码专区