基于FPGA的高速采样电路设计与测试
Design and Test of High Speed Sampling Circuit Based on FPGA
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摘要: 提出利用Xilinx公司新一代现场可编程门阵列(FPGA)-Virtex5芯片对超高速模数转换器ADC08D1500的控制和数据处理方法.实现了ADC08D1500高速稳定的工作和高速被采信号的降速处理,以解决工程中系统采样速率和采样精度问题.详细介绍了布线制板需要注意的特殊问题,最后给出了通过chipscope软件得到的被采信号图,结果显示ADC08D1500性能出色具有高于6.5bit有效位数.设计在工程实践中已经得到使用,并取得了良好的效果.Abstract: A method of controlling and data processing for ADC08D1500 by the newest Field-Programmable Gate Array (FPGA) -Virtex5 from Xilinx is given.High rate and high precision of sampling problems in project are resolved by completing steady working and speed-reducing of ADC08D1500.The special points which should be resolved circuit print in are given in detail.At last, a result of sampling with the converter is offered by chipscope software.ADC8D1500 has an impressive performance with more than 6.5 bit ENOB.In engineering pratice, this design has been used and has performed well.
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