具有自我频率校正功能的多标准多频带压控振荡器.PDF

計畫中文摘要 : 摘要 本計劃書在規劃設計一個具有自我頻率校正的多標準多頻帶之壓控振盪器電路。由於晶 元面積的消耗與製造成本的考量, 一個具有多頻帶之壓控振盪器是提供多標準系統整合晶片 發展上的重要關鍵要素 。現有的商用收發機晶片多採用整合多顆窄頻的振盪器來完成 。在本 計劃中 , 我們將研製一個寬頻帶、低相位雜訊的振盪器電路以期能符合降低面積需求與製造 成本。為了滿足寬頻帶的需求, 我們將採用可切換式電容元件於我們的電路設計中。為了滿 足在不同資料傳輸標準的頻率需求 ,我們將採用可切換式電感元件於我們的設計中。此計劃的 新穎性有二 : 與過去所有的研究文獻不同的地方是我們在切換式電感元件的設計上作一佈局 上之改良,使得晶元面積的消耗得以再縮小 。同時 , 我們試圖發展一個自我頻率校正的電路 迴路設計來補償振盪器積體電路因製程參數的漂移而使振盪頻率偏移 ,因此而改善良率不足 的問題 。 關鍵詞 : 多頻段,壓控振盪器 ,可切換式電容 ,可切換式電感 ,自我頻率校正 計畫英文摘要 Abstract This proposal aims at a multi-standard multi-band VCO circuit design with self-frequency-calibration function. For the consideration of chip area shrink and fabrication cost reduction, it is the key point to have multi-band VCO ’s providing a multi-standard system integration in a whole chip. The present commercial transceiver solves this problem by integrating together several VCO ’s in a chip. In this project we would like to develop a wide-band low-phase-noise VCO to fit for the request of small chip area and low cost. In order to get the wide tuning range, we adopt the switched capacitors in our VCO design. In order to satisfy the need of different operation frequencies in the different standards for data translation, we adopt the switched inductors in our VCO design. The main features of this project are in two ways: what different to the past researches is on the layout improvement of the switched inductors in our design, which is helpful in reducing the area. In the same time, we are going to develop a self-frequency-cal