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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Switching time ： ウィキペディア英語版 Switching time For a frequency synthesizer, the switching time or more colloquially the switching speed is the amount of time from when the command for the next frequency is requested until the time that the synthesizer's output becomes usable and meets the specified requirements. Such requirements will vary depending on the design of the synthesizer. In the 1970s switching speeds ranged from 1 millisecond to 10 microseconds. A more general statement has been given by James A. Crawford: 50 reference cycles as a rule of thumb. By this rule, a reference frequency of 50 kHz has a settling time of 1 millisecond.〔Crawford, 1994, p. 303〕 Two other authors state (Hamid Rategh and Thomas H. Lee) that the switching time (i.e., settling time) is a function of the percentage change in the feedback division ratio.〔Rategh, 2001, p. 25〕 So according to them, the delta N over N itself determines the switching time, where N is the frequency synthesizer's feedback divisor. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Switching time」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.