| 码密度法测量模数转换器的静态参数 |
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| 引用本文： | 方穗明,王占仓.码密度法测量模数转换器的静态参数[J].北京工业大学学报,2006,32(11):977-981. |
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| 作者姓名： | 方穗明 王占仓 |
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| 作者单位： | 北京工业大学,北京嵌入式重点实验室,北京,100022;北京工业大学,北京嵌入式重点实验室,北京,100022 |
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| 摘 要： | 北京市嵌入式重点实验室研发了一个应用于802．11g WLAN基带芯片的10位模数转换器,为测量其静态参数,作者设计了一套可行方案．从理论上解释了码密度测试的原理,提出使用更为鲁棒的、与正弦输入信号幅度变化无关的累积码密度测试方案．通过对ADI公司AD 9218的实际测试验证了该方案的准确性,获得了良好的测试结果．
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| 关 键 词： | 模数转换 参数测定 码密度 微分非线性 积分非线性 |
| 文章编号： | 0254-0037(2006)11-0977-05 |
| 收稿时间： | 11 9 2005 12:00AM |
| 修稿时间： | 2005年11月9日 |
Analog-to-digital Converter Static Parameter Estimations by Code Density Method |
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| FANG Sui-ming,WANG Zhan-cang.Analog-to-digital Converter Static Parameter Estimations by Code Density Method[J].Journal of Beijing Polytechnic University,2006,32(11):977-981. |
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| Authors: | FANG Sui-ming WANG Zhan-cang |
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| Affiliation: | Beijing Embedded System Key Lab, Beijing University of Technology, Beijing 100022, China |
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| Abstract: | A set of feasible solution to testing ELAB 2451 40 MHz,10 bit analog-to-digital converter static pa- rameters applied to base band chip for 802.11g WLAN,which belongs to Beijing Embedded System Key Lab,is provided by this paper.Firstly and theoretically,the principle of code density histogram testing is in- terpreted.Secondly,a more robust accumulated code density testing method,independent of input sine wave signal magnitude variations,is offered and utilized to serve as a solution.Finally,validity and accuracy of this scheme are verified by testing AD 9218 from Analog Device,Inc.The results satisfy all parameter require- ments. |
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| Keywords: | analog to digital conversion parameter estimation code density differential nonlinearity integral nonlinearity |
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