A Vernier Time-to-Digital Converter with 1.5ps Resolution for an All-Digital Phase Locked Loop in 28nm CMOS. - Peifang Wu; Yan Liu; Xi Feng; Hao Xu 005; Na Yan (ASICON, 2023)

An All-Digital Spread-Spectrum Clock Generator With Feedforward Gain Calibration for LPWAN Chirp Transmission System. - Yiyun Mao; Haoyuan Gao; Jin Shao; Xinyi Lin; Peifang Wu; Ping Lu; Hao Xu 005; Na Yan (IEEE Trans. Circuits Syst. II Express Briefs, 2025)