課程設(shè)計語音錄放系統(tǒng)的設(shè)計(doc畢設(shè)論文)-全文預(yù)覽
【正文】 1 .............................................................1 背景.............................................................1 .............................................................2 .............................................................2 .........................................................22 設(shè)計方案簡述 ............................................................3 系統(tǒng)工作原理 ........................................................3 設(shè)計方案 ............................................................3 .........................................................3 ISD1420介紹 .................................................4 概述.............................................................4 了解 ISD1420.....................................................4 芯片特點.........................................................43 詳細(xì)設(shè)計 ................................................................6 ISD1420應(yīng)用 .........................................................6 ISD1420引腳詳細(xì)說明 .................................................6 .............................................................8 ISD 最小化系統(tǒng)的錄放 .................................................9 ........................................................10 ......................................................10 ......................................................114 設(shè)計結(jié)果及分析 .........................................................125 總結(jié) ...................................................................13參考文獻(xiàn) .................................................................14摘 要ISD1420 系列芯片是較為常用了語音錄放集成電路，一般多用于語音電話、留言機等設(shè)備。內(nèi)容要求：設(shè)計并完成硬件系統(tǒng)。任務(wù)如下： 1．進(jìn)行需求分析和概要設(shè)計。更可于單片機實現(xiàn)接口，進(jìn)行語音分段錄放音的功能，可用于自動報時器，汽車自動報站器等設(shè)備，如果采用具有語音處理的16 位或32 位處理器實現(xiàn)同樣的功能將會增大開發(fā)的周期和成本，會使本來簡單的系統(tǒng)更加的復(fù)雜。4．寫課程設(shè)計報告提交源程序。 二、進(jìn)度安排：第１~3 天： 查找資料，進(jìn)行需求分析和概要設(shè)計；第 4~6 天： 各模塊的詳細(xì)設(shè)計；第 7~12 天： 軟件實現(xiàn)與調(diào)試；第 13~14 天：寫課程設(shè)計報告并提交源程序。一個最小的錄放系統(tǒng)僅由一個麥克風(fēng)、一個喇叭、三個按鈕、一個電源、少數(shù)電阻電容組成。關(guān)鍵詞：ISD1420；語音錄放集成電路；語音錄放；信息存儲AbstractISD1420 series chips are more monly used voice recorders integrated circuits, most are used for voice calls, answering machine and other equipment. More MCU interface, voice above the sound recording function, can be used for automatic timekeeping device, automatic stop devices such as, if the voice processing with 16 or 32 bit processors to achieve the same function will increase the development cycle and cost will result in a more simple system of plex.ISD1420 is the United States of America ISD pany produced highquality single chip voice integrated circuit, posed of an oscillator, a voice memory unit, a preamplifier, an automatic gain co
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