基于 Cortex-M 4微控制器的宽带信号的压控放大摘要 I 基于 Cortex-M4 微控制器的宽带信号的压控放大摘要随着电子技术的不断发展,人们对信号处理的要求越来越高。从低频到中高频都需要放大处理。本文设计了一款压控放大器,可以在 10 MHz 带宽下实现信号不失真放大。该设计使用 TI公司 Cortex- M4 内核的单片机 TM4C123 处理器作为主控制器,通过其内部总线控制 DAC 7311 芯片实现可调电压,再通过宽带运算放大器实现双极性电压输出,该电压输出接入至压控放大器 VCA810 的控制电压引脚,实现信号放大倍数的控制,并将放大倍数在液晶屏幕上显示出来。关键词: 压控放大、 TM4C123 、液晶显示 The research and design of ACU test equipment based on Cortex-M 4 Abstract II Abstract With the continuous development of electronic technology, more and more requirement for signal processing. Different frequent signals need to amplify. This paper introduces a design ofa voltage controlled amplifier, can realize signal distortion amplification in 10Mhz bandwidth. This design uses TM4C123 processor, a Cortex-M4 kernel of pany, through the internal bus control chip DAC7311 to adjust voltage, and then output the bipolar voltage by wideband operational amplifier, this voltage is connected to the voltage controlled pin of VAC810 to control signal amplification, and then display the gain on LCD. Keywords : controlled amplify, TM4C123, LCD Display 基于 Cortex-M4 微控制器的宽带信号的压控放大目录 1 目录第一章绪论.................................................................................................................. 1 课题的研究背景与意义................................................................................................................ 1 本课题的目标和主要工作内容.................................................................................................... 1 论文结构安排............................................................................................................................... 1 第二章系统方案及相关软件简介.............................................................................. 2 系统设计方案............................................................................................................................... 2 Cortex-M4 内核介绍..................................................................................................................... 2 相关软件介绍..
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