Low power analysis in single stage source coupled VCO with AVL technique using nanoscale CMOS technology

The voltage controlled oscillator (VCO) is the core factor of Phase locked loop (PLL) oscillation frequency synthesizes, which is mainly used in modern electronics information processing systems. Multi stages VCO ring provide less oscillation frequency and high phase noise, so the single-stage source overcomes these problems. This paper presents a comparison between leakage power Reduction techniques AVL (AVLG & AVLS) assuming static and dynamic power consumption. The simulation results have reported that static power (1.35pW), dynamic power (0.74nW) and phase noise (-42.29dBc/Hz) improve using AVLG technique in nanoscale measurement with supply voltage varying from (0.7V to 1.2V).