| 一种多档位增益滤波器的设计 |
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| 引用本文： | 郦彦,王莉.一种多档位增益滤波器的设计[J].微电子学与计算机,2006,23(4):50-52. |
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| 作者姓名： | 郦彦 王莉 |
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| 作者单位： | 西南交通大学电气工程学院,四川,成都,611756 |
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| 摘 要： | 提出了由AT89C51单片机控制增益和截至频率的低通滤波器设计方案．采用测量放大器和开关电容滤波器构成功能部件，重点讨论了基于开关电容滤波芯片和非易失性数字电位器实现截止频率和增益多档位调节的新方法。
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| 关 键 词： | 数字电位器 测量放大器 开关电容滤波器 单片机 |
| 文章编号： | 1000-7180（2006）04-050-03 |
| 收稿时间： | 2005-12-19 |
| 修稿时间： | 2005年12月19 |
Design of Pass Filter for Multi-amplifying |
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| LI Yan,WANG Li.Design of Pass Filter for Multi-amplifying[J].Microelectronics & Computer,2006,23(4):50-52. |
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| Authors: | LI Yan WANG Li |
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| Affiliation: | Department of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756 China |
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| Abstract: | This paper introduces a design of low pass filter for programmable amplifying and cutoff frequency by singlechip computer. It uses a Switched Capacitor Filter and a IC Instrumentation Amplifier for basic functional components. We discuss specially a new method for multi-cutoff frequency and multi-amplifying based on switched capacitor filter and nonvolatile digitally controlled potentiometer. |
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| Keywords: | Digitally controlled potentiometer Instrumentation amplifier Switched capacitor filter Single-chip computer |
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