A DTC-Based Snapshot ADPLL With Feedforward Fractional Spur Cancellation and Asynchronous Duty-Modulation Dithering DCO Achieving-71.6 dBc Fractional Spur in 65-nm CMOS Process. - Kihoon Kwon; Sangwon Kim; Minseo Park; Jinhyuk Ahn; Gahyeon Lee; Joonho Gil; Chulhyun Park; Yunseong Eo; Hyungkyu Choi; Chulho Kang; Eun Seong Kim; Nam-Young Kim; et al. (IEEE Access, 2026)