S. Mattia Dartizio, Buccoleri, F., Tesolin, F., Avallone, L., Santiccioli, A., Iesurum, A., Steffan, G., Cherniak, D., Bertulessi, L., Bevilacqua, A., Samori, C., Lacaita, A. Leonardo, and Levantino, S., ?A 68.6fs_rms-Total-integrated-Jitter and 1.5?s-LocKing-Time Fractional-N Bang-Bang PLL Based on Type-II Gear Shifting and Adaptive Frequency Switching?, in 2022 IEEE International Solid- State Circuits Conference (ISSCC), 2022.