Comparison of LC-VCO and LC-DCO parameters in 65 nm CMOS technology

In this paper the performance of frequency oscillators is analyzed in different types of oscillators LC-VCO and LC-DCO. CMOS integrated circuit (IC) technology nodes is the same - 65 nm. Both oscillators are based on cross-coupled NMOS topology and are designed with Cadence IC software package. All parameters are obtained by simulating the scheme under nominal conditions (supply voltage 1.8 V, temperature 60 °C, nominal technological process corner).