| 基于AT89C51和FPGA的程控滤波器设计 |
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| 引用本文： | 曾菊容.基于AT89C51和FPGA的程控滤波器设计[J].科技通报,2012,28(4):187-189. |
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| 作者姓名： | 曾菊容 |
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| 作者单位： | 宜宾学院 物理与电子工程学院,四川宜宾,644000 |
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| 摘 要： | 系统由程控放大器、程控滤波器、A/D转换器和D/A转换器、单片机控制及显示电路组成,以AT89C51和FPGA器件为控制中心,实现滤波器工作模式选择,增益控制、调节截止频率等功能,并通过LCD显示滤波器的截止频率和放大器的放大倍数。整个系统具有良好的人机交互界面,精度高,实用性很强。
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| 关 键 词： | AT89C51 FPGA 程控放大器 程控滤波器 A/D转换器 D/A转换器 |
Design of Programmable Filter Based on AT89C51 and FPGA |
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| ZENG Jurong.Design of Programmable Filter Based on AT89C51 and FPGA[J].Bulletin of Science and Technology,2012,28(4):187-189. |
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| Authors: | ZENG Jurong |
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| Institution: | ZENG Jurong(college of Physics and Electronic Engineering,Yinbin University,Yibin 644000,China) |
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| Abstract: | It designed the programmable filter which is composed of program-controlled amplifier,programmable filter,A/D converter and D/A converter,single-chip control and display circuit with AT89C51 and FPGA for the control center.It can select the filter mode,control the gain,adjust the cutoff frequency,and it can display the cutoff frequency of the filter and the amplification of the amplifier through the LCD,the whole system has the good man-machine interface,high precision and good practical value. |
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| Keywords: | AT89C51 FPGA program-controlled Amplifier programmable filter A/D converter D/A converter |
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