A 14 GHz Integer-N Sub-Sampling PLL With RMS-Jitter of 85.4 fs Occupying an Ultra Low Area of 0.0918 mm2. - Dipan Kar; Soumen Mohapatra; Md. Aminul Hoque; Deukhyoun Heo (IEEE Trans. Circuits Syst. I Regul. Pap., 2024)