Analysis and design of current starved ring VCO

This paper focuses on and analysis and design of current starved voltage controlled ring oscillator. The analysis includes effect of delay time, phase noise, layout area, technology etc. on the frequency of oscillation at various power supplies and control voltages. The simulation results shows that the circuit has higher tuning range and low power consumption suitable for various application domains. Added benefit of this VCO is to maintain a constant amplitude level and oscillation. It is also proved here that the frequency of oscillation is inverse of the supply voltage and therefore consuming less power.