Programmable fractional-N clock generators
學年 94
學期 1
專利開始日期 2005-09-23
專利結束日期 2005-09-23
作品名稱 Programmable fractional-N clock generators
作品名稱(其他語言)
著者 郭書菖; Kuo, Shu-chang; 楊維斌; Yang, Wei-bin; 鄭國興; Cheng, Kuo-Hsing
單位 淡江大學電機工程學系
著錄名稱、卷期、頁數
描述 專利國別:美國 United States Patent: 7,242,231 Application number: 11/232,949 國際分類號:H03L 7/06
摘要 Clock generators capable of generating clocks with different frequency according to a binary code. A voltage controlled oscillation module generates a plurality of first clocks (D.sub.0.about.D.sub.m) with a first frequency (f0), in which the first clocks D.sub.i and D.sub.i-1 have a fixed phase difference and 1<i<m. A logic control circuit outputs a set of corresponding clocks arranged in a corresponding sequence according to the first clocks and a binary code. A clock synthesizer generates a second clock with a second frequency (f1) according to the set of corresponding clocks, in which f1=A/B f0, A<B and A and B are positive integers.
關鍵字
語言 en
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