DR.PARTHA PRATIM SAHU; MANISH KUMAR. Design & Simulation of Analog Phase Lock Loop With Ring oscillators Using 0.18µm CMOS Technology . International Journal of Research & Technology, [S. l.], v. 1, n. 1, p. 1–6, 2013. Disponível em: https://ijrt.org/j/article/view/3. Acesso em: 31 mar. 2026.