【正文】 畢業(yè)設計（論文） 1 基于 TEA5767 模塊的數(shù)字 FM 收音機設計 畢業(yè)設計（論文） 2 摘要 本設計是一個數(shù)字調(diào)頻收音機（ FM），就是接受頻率調(diào)制的無線電信號，經(jīng)過解調(diào)還原成原信號的電子設備，利用單片機控制有 FM 功能的專用芯片，設計一個收音機系統(tǒng)。本設計采用模塊化設計，整個系統(tǒng)由控制模塊， FM 音頻模塊，電源模塊和功放模塊組成。未處理系統(tǒng)采用單片機控制。 單片機自 從 20 世紀 70 年代問世以來，以極其高的性能價格比受到人們的重視和關注，所以應用很廣，發(fā)展很快。 STC89C52 單片機的特點是體積 小、集成度高、重量輕、抗干擾能力強，對環(huán)境要求不高，價格低廉，可靠性高，靈活性好，開發(fā)較為容易。 本設計另一核心采用的是 TEA5767 芯片，它是由 PHILIPS公司推出的針對低電壓應用的單芯片數(shù)字調(diào)諧 FM 立體聲收音機芯片。 TEA5767 芯片內(nèi)集成了完整的 IF 頻率選擇和鑒頻系統(tǒng)，就可實現(xiàn) FM收音機的全部功能。設計的液晶屏采用的是 Nokia5110，該液晶屏的性價比高，接口簡單，速度快，適合便攜式供電設備。本設計主要是體現(xiàn)單片機系統(tǒng)的自動控制能力， 更重要的意義是單片機的應用改變了控制系統(tǒng)傳統(tǒng)的設計思想和方法。 關鍵詞： STC89C52 Nokia5110 TEA5767 畢業(yè)設計（論文） 3 Abstract The design is a digital FM radio (FM), It is to receive the frequency modulated radio signals, electronic equipment restored to the original signal after demodulation, the use of dedicated chip MCU control FM functions, design a radio system. The system consists of the control module, FM audio module, power module and power amplifier module. The The microprocessing system microcontroller. The singlechip has e out since the 1970s, pared to is valued people39。s and the attention by the extremely high performance price, therefore the application is very broad, the development is very quick. STC89C52 Monolithic integrated circuit39。s characteristic is the volume is small, the integration rate is high, the weight is light, antijamming ability, is not high to the environment request, the low in price, the reliability is high, the flexibility is good, the development is easier. What this design uses is the TEA5767 chip, it is promotes by PHILIPS Corporation in view of the low voltage application single chip digit harmonious FM stereophonic receiver chip. In the TEA5767 chip integrated the plete IF frequency selection and the frequency discrimination system, only need the very few low cost periphery part, be possible to realize the FM radio39。s plete function. The design of the LCD screen is Nokia5110, The LCD screen have high cost , simple interface, fast, and suitable for portable power supply equipment. A more vital significance was monolithic integrated circuit39。s application changed the control system tradition design concept and the method. Keywords ： STC89C52 , Nokia5110 , TEA5767 畢業(yè)設計（論文） 4 目錄 摘要 ................................................................................................................................ 2 Abstract ......................................................................................................................... 3 目錄 ................................................................................................................................ 4 緒論 .................................................................................................... 錯誤 !未定義書簽。 1 FM收音機概述 .............................................................................................................. 7 發(fā)射系統(tǒng)的簡單概述 .......................................................................................... 7 接收系統(tǒng) 的簡單概述 .......................................................................................... 7 典型數(shù)字式收音機模塊組成 ................................................................................. 8 收音機的調(diào)制方案介紹和該方案原理介紹 .......................................................... 8 收音機的調(diào)制方案簡單介紹 ..................................................................... 8 調(diào)頻廣播收音機的原理 ...........................................................................10 2 方案論證與硬件選擇 ................................................................................................... 11 本方案的硬件選型 ............................................................................................ 11 ...........................................................................................................12 TEA5767特點 ..........................................................................................12 TEA5767的接口介紹 ...............................................................................12 ...........................................................................................................14 STC89C52外形和引腳 .............................................................................15 STC89C52主要功能 ...............................................................................16 .............................................................................16 ...........................................................................................................19 TDA1308基本信息 ...............................................................................19 ...........................................................................................................20 Nokia5110液晶簡單簡介 ........................................................................20 Nokia5110 液晶特點 ................................................................................21 Nokia5110液晶理由 ........................................................................22 控制接口 ................................................................................................23 ...........................................................................................................22 3 TEA5767芯片介紹 ......................................................................................................24 TEA5767芯片簡介 ............................................................................................25 TEA5767 寄存器描述 ..........................................................................................26 FM模塊介紹 ......................................................................................