Shiheng Yang, Jun Yin, Tailong Xu, Taimo Yi, Pui-In Mak, Qiang Li and Rui P. Martins,
A 600-µm2 Ring-VCO-Based Type-II Hybrid PLL Using a 30-μW Charge-Sharing Integrator in 28-nm CMOS
IEEE Transactions on Circuits and Systems II: Express Briefs
vol. 68, No9, pp. 3108-3112
Sep-2021