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          EEPW首頁(yè) 
	 > 模擬技術(shù) > 設(shè)計(jì)應(yīng)用 > StellamarXilinxXC3S400AN數(shù)字ADC音頻評(píng)估方案
          
    
          

          

          


	
	
	

          
	
          
		
          
			
          StellamarXilinxXC3S400AN數(shù)字ADC音頻評(píng)估方案
          
						
          
				作者：
				時(shí)間：2012-04-11
				來(lái)源：網(wǎng)絡(luò)
				
				
				
				
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          Stellamar 公司的數(shù)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(dá)14位的有效位,14位500Hz的SNR為90dB,數(shù)字典輸出,數(shù)字測(cè)試,過采樣,不會(huì)丟失碼,極低的失調(diào)漂移,能用在苛刻的環(huán)境.目標(biāo)應(yīng)用在語(yǔ)音,消費(fèi)類和工業(yè)中的傳感器,低功率手提設(shè)備以及軍事,空間和航空航天.本文介紹了數(shù)字ADC主要特性,數(shù)字ADC音頻評(píng)估板框架圖,電路圖和材料清單.
          本文引用地址：http://www.ex-cimer.com/article/186621.htm
          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.
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