A fast-settling fractional-N PLL with presetting frequency and dynamic bandwidth control

Yao Li, Bo Zhou*, Fuyuan Zhao

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

A fast-settling dual-path fractional-N phase-locked loop(PLL) is presented in this paper, which is applied for frequent current charging and discharging. Compared with the conventional phase-locked loop, this one is significantly able to reduce the settling time with hybrid approaches. By employing direct presetting frequency, based on frequency-locked loop(FLL), the process locking is accelerated. To achieve low phase noise, 20-bits delta-sigma modulator is employed in PLL. Dynamic bandwidth is beneficial for both of them and results a smooth transition. Besides, the dual-path fractional-N PLL compensates the nonlinearity from the charge pump (CP), and provides a wider tuning range. Using the 0.6V supply voltage for 65nm CMOS, a 900MHz fractional-N PLL with mixed techniques exhibits less than 2.5μs transient settling time according the simulation results.

源语言英语
主期刊名Fuzzy Systems and Data Mining V - Proceedings of FSDM 2019
编辑Antonio J. Tallon-Ballesteros
出版商IOS Press BV
1004-1011
页数8
ISBN(电子版)9781643680187
DOI
出版状态已出版 - 2 10月 2019
活动5th International Conference on Fuzzy Systems and Data Mining, FSDM 2019 - Kitakyushu, 日本
期限: 18 10月 201921 10月 2019

出版系列

姓名Frontiers in Artificial Intelligence and Applications
320
ISSN(印刷版)0922-6389
ISSN(电子版)1879-8314

会议

会议5th International Conference on Fuzzy Systems and Data Mining, FSDM 2019
国家/地区日本
Kitakyushu
时期18/10/1921/10/19

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