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Browsing by Author "Liao, De-Wen"

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    A Spur-Reduction Frequency Synthesizer For WIMAX Applications
    (2010)
    Liao, De-Wen
    ;
    Hung, Chung-Chih
    ;
    電機工程學系
    ;
    Department of Electrical and Computer Engineering
    A spur-reduction frequency synthesizer proposed in 0.18-um CMOS technology is developed for WIMAX applications. It incorporates a random charge pump to randomize the reference spur so as to accomplish a low spur level or a relatively smooth spectrum and a fast lock synthesizer. This frequency synthesizer achieves the phase noise of -124dBc/Hz at 1MHz offset frequency and reference spurs below -70dBc. The spur tones of the frequency synthesizer are greatly in frequency domain and the power consumption is 28mW.