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研究生: 薛博鴻
Hsueh, Po-Hung
論文名稱: 時間數位轉換器量測電壓脈衝高度之研究
指導教授: 周懷樸
Chou, Hwai-Pwu
口試委員:
學位類別: 碩士
Master
系所名稱: 原子科學院 - 工程與系統科學系
Department of Engineering and System Science
論文出版年: 2009
畢業學年度: 97
語文別: 中文
論文頁數: 65
中文關鍵詞: 時間數位轉換器延遲鎖相迴路
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  • 過去十幾年間單斜坡式類比數位轉換器被廣泛的使用在核能科學上,這樣的架構非常適合於低功率多通道的應用上,特別是頻譜測量,但這樣架構的類比數位轉換電路普遍存在著轉換時間過長的缺點。
    本研究主題主要針對幅射電壓脈衝高度的量測,提出一單斜坡架構的量測電路,並針對其轉換時間過長的問題加以改善。電路設計使用台積電標準0.18um CMOS製程實現,工作電壓為±1.8V,量測電壓範圍為0∼1.8V,數位信號輸出為12位元,最小時間解析度為78.125ps,晶片面積2.4mm2。


    誌 謝 ...................................................I Abstract ..................................................II 摘 要 .................................................III 目 錄 ..................................................IV 圖目錄 .................................................VII 表目錄 ..................................................X 第1章 緒論 .............................................1 第 2 章 文獻回顧 .........................................3 2-1單斜坡式類比數位轉換器...............................3 2-2雙斜坡式類比數位轉換器...............................4 2-3單斜坡雙斜率式類比數位轉換器.........................6 2-4延遲線...............................................8 第 3 章 電路設計........................................17  3-1整體架構...........................................18 3-1.1方塊圖..........................................18 3-1.2量測時序圖......................................20 3-1.3規格制定........................................21  3-2電壓-時間轉換電路...................................23  3-3控制時序產生電路...................................27 3-4時間量測電路.......................................30 3-4.1六位元計數器 ...................................30 3-4.2游標尺延遲線電路 ................ ..............31 3-4.3延遲元件........................................35 3-4.4延遲鎖相迴路....................................36 3-4.5電荷幫浦相位偵測器..............................42 3-5讀出電路................................... ........46 3-5.1編碼方式................................ .......46 3-5.2編碼電路................................ .......48 第 4 章 電路模擬與分析..................................53 4-1電壓時間轉換電路....................... ............53 4-2游標尺電路.................................... .....54 4-2.1延遲元件.......................... . ............54 4-2.2延遲鎖相迴路........................ ...........56 4-3六位元計數器........................... ............57 4-4整體電路效能......................... ..............58 4-5電路佈局............................. ..............61 第 5 章 結論.. ..........................................63 參考文獻.................................................64

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