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本文提出了一种基于II型齿轮变速技术的分数N bang-bang锁相环，实现了68.6fsrms的总集成抖动和1.56µs的锁定时间，解决了移动通信中对超低抖动和频率捷变本地振荡器的需求。
Luca Avallone2, Alessio Santiccioli1, Agata Iesurum3, Giovanni Steffan2, Dmytro Cherniak2, Luca Bertulessi1, Andrea Bevilacqua3, Carlo Samori1, Andrea Leonardo Lacaita1, Salvatore Levantino1 Politecnico di Milano, Milan, Italy Infineon Technologies, Villach, Austria 3 University of Padova, Padova, Italy 1 2 *Equally Credited Authors (ECAs) To pursue the ever-growing trend in mobile data-rates, modern transceivers exploit carrier aggregation and high-order modulations, at the price of calling for ultra-low jitter (below 100fs) and frequency-agile local oscillators. Although the bang-bang digital-PLL (BBPLL) architecture can meet the stringent 5G jitter requirements at low power consumption and silicon area [1], its inability to quickly recover from a frequency jump, caused by the narrow linear range of a bang-bang phase detector (BBPD), has so far prevented its application when frequency agility is an important requirement. A highresolution and wide-range time-to-digital converter (TDC)
Simone Mattia Dartizio*1, Francesco Buccoleri*1, Francesco Tesolin1,