數(shù)字調(diào)頻立體收音機(jī)

電子機(jī)電論文編號(hào):JD722  論文字?jǐn)?shù):11420,頁(yè)數(shù):33

目 錄
摘 要……………………………………………………………………………...1
Abstract………………………………………………………………………….2
前 言……………………………………………………………………………...4
第一章  系統(tǒng)的結(jié)構(gòu)及功能介紹……………………………………………….5
     1.1 系統(tǒng)的工作原理概述…………………………………………………5
     1.2 系統(tǒng)的特點(diǎn)和使用……………………………………………………6
         1.2.1 系統(tǒng)的特點(diǎn)………………………………………………….6
         1.2.2 使用說(shuō)明……………………………………………………….6
第二章   硬件系統(tǒng)的設(shè)計(jì)……………………………………………………...8
     2.1 調(diào)頻收音功能的實(shí)現(xiàn)和電路………………………………………..10
         2.1.1 調(diào)頻收音機(jī)功能的實(shí)現(xiàn)……………………………………..10
         2.1.2 TEA5767的電路連接…………………………………………14
     2.2 音量調(diào)節(jié)和音頻放大電路…………………………………………..16
         2.2.1 音量調(diào)節(jié)…………………………………………………….17
         2.2.2 音頻放大電路………………………………………………..18
     2.3 時(shí)鐘模塊DS1302……………………………………………………18
         2.3.1 DS1302引腳功能表和內(nèi)部結(jié)構(gòu)圖………………………….19
         2.3.2 DS1602 的控制字節(jié)說(shuō)明……………………………………19
     2.4 數(shù)據(jù)存儲(chǔ)器24C16…………………………………………………..22
         2.4.1 24C16的特性及引腳定義……………………………………22
         2.4.2 24C16與單片機(jī)連接原理圖…………………………………23
     2.5 鍵盤(pán)和顯示電路……………………………………………………..23
         2.5.1 鍵盤(pán)………………………………………………………….23
         2.5.2 顯示………………………………………………………….24
第三章   系統(tǒng)軟件設(shè)計(jì)……………………………………………………….26
     3.1 主程序部分…………………………………………………………..26
     3.2 電臺(tái)調(diào)諧功能軟件流程圖…………………………………………..26
     3.3 時(shí)鐘設(shè)計(jì)功能軟件流程圖…………………………………………..28
     3.4 音量調(diào)節(jié)功能軟件流程圖…………………………………………..29
第四章   系統(tǒng)測(cè)試………………………………………………………….....30
     4.1 TEA5767頻率輸入方式和存儲(chǔ)……………………………………..30
     4.2 LCD顯示……………………………………………………………..30
     4.3 時(shí)鐘模塊DS1302……………………………………………………30
     4.4 系統(tǒng)主要技術(shù)指標(biāo)…………………………………………………..30
第五章   結(jié)束語(yǔ)……………………………………………………………….31
致 謝…………………………………………………………………………….32
參考文獻(xiàn)………………………………………………………………………...33

摘 要
調(diào)頻收音機(jī)（FM Radio）一直在人們的生活?yuàn)蕵?lè)中占有非常重要的地位。從老式的晶體管收音機(jī)到今天的網(wǎng)絡(luò)收音機(jī)，說(shuō)明通過(guò)廣播享受生活一直是人們喜歡的生活方式。如今，隨著消費(fèi)類(lèi)電子的興起和繁榮以及數(shù)字電子的發(fā)展，廣大從事消費(fèi)類(lèi)電子設(shè)計(jì)的廠商都不忘在諸如MP3、智能手機(jī)、便攜式Video播放器等產(chǎn)品中嵌入FM部分。傳統(tǒng)的調(diào)頻解決方案存在電路體積大、調(diào)諧不方便、穩(wěn)定性欠佳等弊端。為了解決上述問(wèn)題，眾多半導(dǎo)體公司紛紛尋求調(diào)頻接收機(jī)的ASIC解決途徑。本文介紹了數(shù)字調(diào)頻立體聲收音機(jī)的設(shè)計(jì)與實(shí)現(xiàn)。其解決了傳統(tǒng)的調(diào)頻方案中體積大、調(diào)諧不方便、穩(wěn)定性不好等這些缺點(diǎn)。在本文中主要介紹了該設(shè)計(jì)的硬件電路、軟件設(shè)計(jì)流程、系統(tǒng)測(cè)試。數(shù)字調(diào)頻立體聲收音機(jī)的MCU采用AT89S52單片機(jī)，單片機(jī)是本系統(tǒng)的核心器件。由收音機(jī)模塊TEA5767實(shí)現(xiàn)頻率的接收，LCD1602實(shí)時(shí)顯示時(shí)間、頻率以及音量，用24C16來(lái)存儲(chǔ)頻率，以TDA2822作為音頻功率放大器，并通過(guò)數(shù)字電位器X9313調(diào)音量。
本設(shè)計(jì)通過(guò)按鍵調(diào)節(jié)頻率，用DS1302實(shí)時(shí)顯示時(shí)間，并可通過(guò)按鍵修改時(shí)間。

關(guān)鍵詞：?jiǎn)纹瑱C(jī) 數(shù)字調(diào)頻 TEA5767 24C16 TDA2822 X9313

Abstract
The frequency modulation radio (FM Radio) has been occupying an important position in people life of amusement. From the transistor radio of old style to the network radio today, we can see that enjoying life though broadcast is the life style that people always like. Now, with the rise and prosperity of consumption electronic products and the development of numerical electronic products, the majority of the electronic products designers of the manufacture always imbed FM part in the products such as the MP3, intelligence cellular phone, easy take-away Video etc.  But the traditional frequency modulated solution has many problems such as electric circuit physical volume too big and adjust frequency modulation inconvenient, the stability not so well etc. In order to resolve the above-mentioned problems, numerous semi-conductor companies look for the ASIC frequency modulation receiver to solve these problems. This thesis introduces the design and the realization of numerical frequency modulation high fidelity radio. It solves the problems of electric circuit physical volume too big and adjusts frequency modulation inconvenient, the stability not so well etc. This thesis mainly introduces the hardware electric circuit, software design process, testing system. The MCU of digital frequency modulation high fidelity radio adopts the single slice machine of AT89S52; and the single slice machine is the core spare part of this system. In this system radio mold piece TEA5767 is used to carry out frequency to receive, the LCD1602 to show time, frequency and volume, an iron electricity storage equipment of 24 C16 A to store  frequency, TDA2822 to enlarge audio frequency power, and digital electric machine X9313 to modulate voice volume.
This design regulates frequency through a key, uses DS1302 solid hour to show time, and modifies the time though the key.

Keywords:Microcontroller FMdigital  TEA5767  24C16 TDA2822  X9313