%0 Journal Article %J IEEE Journal of Solid-State Circuits %D 2022 %T A Fractional-N Bang-Bang PLL Based on Type-II Gear Shifting and Adaptive Frequency Switching Achieving 68.6 fs-rms-Total-Integrated-Jitter and 1.56 μ s-Locking-Time %A Dartizio, Simone M. %A Buccoleri, Francesco %A Tesolin, Francesco %A Avallone, Luca %A Santiccioli, Alessio %A Iesurum, Agata %A Steffan, Giovanni %A Cherniak, Dmytro %A Bertulessi, Luca %A Bevilacqua, A. %A Samori, Carlo %A Lacaita, Andrea L. %A Levantino, Salvatore %B IEEE Journal of Solid-State Circuits %P 1-14 %G eng %R 10.1109/JSSC.2022.3206955