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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/14330

    Title: 以Bi-CMOS差動放大器為設計基礎之壓控振盪器
    Authors: 蔡澈雄
    Keywords: 差動放大器
    Date: 2007-11-29
    Issue Date: 2008-01-02 11:53:29 (UTC+8)
    Abstract: 在此篇論文中,我們主要提出由Bi-CMOS 差動放大器所組成的一個振盪器。我們使用H-spice 在CIC 0.35um-SiGe 製程參數中驗證成功。H-spice 中此振盪器從0.9V 到3.3V 電壓的工作輸出頻率為104 MHz 到1291 MHz,並且也使用量測儀器,實際在麵包板上使用獨立元件與IC 證實這是一個振盪器電路。此振盪器電路能穩定的從5.2V 到6.0V電壓的工作。當操作在電源電壓輸入5.2V 時輸出頻率為154.6 MHz,而操作在6.0V 時振盪輸出頻率將超過187.5 MHz。另外也使用FFT(傅立葉級數快速轉換 )圖分析此振盪器並且顯示此振盪器有低雜訊特性,且SNR≧30dB。最後實驗結果顯示此振盪器不僅有好的線性關係並且也有高的電壓增益(Kvco)之壓控制振盪器(VCO)。
    In this thesis, we present an oscillator mainly composed of a Bi-CMOS differential amplifier. The simulation use H-spice to verify the Bi-CMOS differential amplifier oscillator under CIC 0.35μm Si-Ge process parameters. We have used discrete devices on bread board to prove such circuit is an oscillator circuit successfully. Simulation results show such oscillator can work stably from 0.8 volts to 3.3 volts supply voltage. Under H-spice simulation, when supply voltage is close to 3.3 volts, the output frequency will be more than 1.0 GHz. The differential amplifier oscillator can work from 5.2 volts to 6.0 volts on bread board by using discrete devices. Their output frequencies are 154.6 MHz and 187.5 MHz respectively. We use FFT (Fast Fourier Transform) diagram to analyze the oscillator and shows the oscillator is with low noise characteristic. Finally, those simulation results reveal that the oscillator is not only a good voltage controlled oscillator (VCO) but also has large voltage gain (Kvco).
    Appears in Collections:[資訊科技學院 ] 2007年優質家庭生活科技(U-home)之關鍵技術研討會

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