| 基于LMH6505的中频信号调理电路设计 |
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| 引用本文： | 陈磊,黄峰.基于LMH6505的中频信号调理电路设计[J].国外电子元器件,2009(9):80-81. |
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| 作者姓名： | 陈磊 黄峰 |
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| 作者单位： | 西安电子科技大学雷达信号处理国家重点实验室; |
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| 摘 要： | 信号调理电路是一种在中频接收机中得到广泛应用的电路。针对中频数字接收机中对输入模拟信号的要求，设计一种适应性良好的信号调理电路介绍自动增益控制（AGC）的原理，并给出基于可变增益放大器LMH6505的具体电路设计.该电路具有低功耗、增益可调范围宽和频率范围宽的特点，适用于一般的中频接收机。
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| 关 键 词： | 中频放大器 信号调理电路 自动增益控制(AGC) 低通滤波器 |
Design of intermediate frequency signal conditioning circuit based on LMH6505 |
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| CHEN Lei,HUANG Feng.Design of intermediate frequency signal conditioning circuit based on LMH6505[J].International Electronic Elements,2009(9):80-81. |
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| Authors: | CHEN Lei HUANG Feng |
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| Affiliation: | ( National Lab of Radar Sigmal Process ing, Xidian University, Xi＇an 710071 , China) |
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| Abstract: | Signal conditioning circuit is widely used in intermediate frequency receivers.Aiming at the constraint of analog input signal in digital receivers,a kind of well adaptive signal conditioning circuit is designed in this paper.After introducing the principle of auto gain control(AGC),the particular circuit design based on the variable gain amplifier LMH6505 is given.This circuit has the characteristics of low power,wide gain adjustable range and wide bandwidth.The circuit is used in the intermediate frequenc... |
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| Keywords: | intermediate frequency amplifier signal conditioning circuit auto gain control(AGC) low-pass filter |
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