高频电子课程设计-晶体振荡器.docVIP

通信电子线路课程设计说明书 晶体正弦波振荡 院 部： 电气与信息工程学院 学生姓名： 指导教师： 李 职称 实验师 专 业： 通信工程 完成时间： 2012年12月09日 摘 要 石英晶体振荡器是一种高精度和高稳定度的振荡器，被广泛应用于彩电、计算机、遥控器等各类振荡电路中，及通信系统中用于频率发生器。石英谐振器因具有极高的频率稳定性，故主要用在要求频率十分稳定的振荡电路中作谐振元件。但石英晶体成本较高，故在要求不太高的电路中一般采用陶瓷谐振元件。 本设计对利用石英晶体的压电效应，对构成正弦波的振荡器的方法做了较深入的研究，对振荡器的原理及石英晶体振荡器原理做了详细的介绍并通过Multisim 软件设计、仿真出并联型石英晶体振荡器，最后按照原理图进行参数的计算和实物的制作、调试。对实物和仿真进行调试，并成功出现波形，证明了上述理论的可靠性，且符合设计要求。是一次成功的课程设计。 关键词：晶体；振荡器；并联；Multisim仿真 ABSTRACT Quartz crystal oscillator is a kind of high precision and high stability of the oscillator, which has been widely used in color TV computer remote control and other kinds of oscillation circuit, and communication system used for frequency generator quartz resonator for high frequency stability, it is mainly used in request frequency is very stable oscillation circuit of resonance element but quartz crystal cost is higher, so in less demanding circuit usually use ceramic resonance element.This design using quartz crystal piezoelectric effect, made of crystal oscillator method to do a more in-depth study on the oscillator principle and quartz crystal oscillator principle are described in detail and through the Multisim software design simulation the parallel type quartz crystal oscillator, according to the parallel resonance type crystal oscillator principle using carat splash circuit draw the schematic diagram of the parameters, the calculation and real production debugging in physical and simulation debugging, and successfully appear waveform, proved the reliability of the above theory, and comply with the design requirements is a successful course design. Key words Crystal; Oscillator; Series parallel; Multisim simulation 目 录 TOC \o 1-3 \h \u HYPERLINK \l _Toc27929 1 课程设计任务书 PAGEREF _Toc27929 2 HYPERLINK \l _Toc27002 1.1 设计任务 PAGEREF _Toc27002 2 HYPERLINK \l _Toc18542 1.2 主要技术指标 PAGEREF _Toc18542 2 HYPERLINK \l _Toc14590 1.3设计思想 PAGEREF _Toc14590