畢業(yè)設(shè)計(jì)（論文）-PLL技術(shù)及其應(yīng)用

摘  要

本論文首先介紹了鎖相環(huán)技術(shù)的發(fā)展的現(xiàn)狀、方向，以及分類方法，并對PLL集成電路的主要應(yīng)用做了詳細(xì)的分析。在以上的基礎(chǔ)上，設(shè)計(jì)了紅外自動(dòng)控制水龍頭，起到了使用方便，節(jié)約水資源、防止疾病傳染的作用。紅外自動(dòng)控制水龍頭是運(yùn)用了LM567音頻鎖相環(huán)芯片設(shè)計(jì)，同時(shí)結(jié)合定時(shí)器555芯片和三端集成穩(wěn)壓器等組合而成的電路。而對于LM567芯片、555芯片等集成電路，對其功能，引腳，工作原理都進(jìn)行了一一的分析并結(jié)合實(shí)際電路加以應(yīng)用說明。紅外線自動(dòng)控制水龍頭主要是由電源電路、發(fā)射電路、接收解調(diào)控制電路三部分組合而成，其中需要運(yùn)用555芯片、SFH506-38等芯片完成其各自在電路中所要發(fā)揮的功能、作用。在整個(gè)電路設(shè)計(jì)中，我們力求要做到電路簡單，充分發(fā)揮通用集成電路和專用集成電路的不同功能來滿足電路的要求，將設(shè)計(jì)的功能發(fā)揮到最大。整個(gè)設(shè)計(jì)成本不高，但是十分的實(shí)用，不僅給我們的生活上帶來了極大的方便，也保障了公共衛(wèi)生，防止一些疾病的交叉?zhèn)魅尽?/p>

關(guān)鍵詞：鎖相環(huán)； 專用集成電路； 通用集成電路； LM567芯片； 555芯片

Abstract

This paper introduces the development of phase-locked loop(PLL) technology and the status and the direction，and details the function of PLL integrated circuits.On the basis the former discribtion,we design infrared automatic tap,not only bring us some convenience,but also save the water and prevent diseases.At last LM567 Audio PLL chip can designed the infrared automatic tap.This tap is controlled automaticly by the ifrared that combines 555 timer chip and three-terminal voltage regulator integrated.It is covinience and can save water. As for the LM567 chip, 555 chips and other integrated circuits, their function, pin, working principle of the chips have carried out analysis of the actual circuit to be combined with application notes.The infrared automatic tap includes power circuit, firing circuit and accepting the demodulatwd controlling circuit.The functions and effects of 555 chip and SFH506—38 chip play an important role in this circuit.During the designment,we try our best to make the circuits easy and give full play to the different functions of general-purpose integrated circuits and application-specific integrated circuits in order to get the full use of the functions of designment.The designment is not a high paid one,but it is useful. Not only bring life to our great convenience, but also protect the public health, to prevent cross-transmission of some diseases.

Keywords: phase-locked loop； application-specific integrated circuits；general-purpose integrated circuits； LM567； NE555

目    錄

1 概述 1
1.1課題的意義 1
1.2 鎖相環(huán)路的發(fā)展歷史 1
1.3 PLL技術(shù)的發(fā)展現(xiàn)狀及發(fā)展前景 2
2 集成電路的介紹及應(yīng)用 2
2.1 集成電路簡介 2
2.2 集成電路的分類介紹 3
2.2.1 專用集成電路的介紹 4
2.2.2 通用集成電路的介紹 4
2.3 集成電路的應(yīng)用 5
2.3.1  TDA4605的應(yīng)用 5
2.3.2  555定時(shí)器的應(yīng)用 6
3 鎖相環(huán)應(yīng)用電路的設(shè)計(jì) 10
3.1 方案設(shè)計(jì) 11
3.2 方案比較及選擇 13
3.3 單元電路的設(shè)計(jì) 13
3.3.1電源電路設(shè)計(jì) 13
3.3.2發(fā)射電路設(shè)計(jì) 14
3.3.3接收解調(diào)控制電路 16
4 整體電路及實(shí)現(xiàn)原理 20
4.1 原理圖及實(shí)現(xiàn)原理 20
4.2 電路元器件 22
5 總結(jié) 22
參考文獻(xiàn) 24
外文資料
中文翻譯
致  謝