THE OUTPUT NOISE REDUCTION OF RING VOLTAGE-CONTROLLED OSCILLATOR

Abstract

A new method of reducing output noises in the ring voltage-controlled oscillator (VCO) is presented. In contrast to other methods, it keeps a small increase of area and saves accurate output frequency of the ring VCO. By using this method, the area of the circuit gets larger by 18%. By using the method, the noise error of the signal is 0% at the lowest frequency and 0.031% at the highest frequency.