A Novel Low Voltage, Full-Swing Voltage-Controlled Oscillator Based on Single-Ended Delay Cell

Vol. 6  Issue 4
Year: 2016
Issue:Jun-Aug 
Title:A Novel Low Voltage, Full-Swing Voltage-Controlled Oscillator Based on Single-Ended Delay Cell
Author Name:Syed Fayaji, T. Krishna Murthy and K. Neelima
Synopsis:

The conventional Voltage-Controlled Oscillators (VCO) are impractical to generate the full swing outputs and wide range of tuning, because the conventional differential VCO's are used as the tail current sources. The full swing, wider tuning range and low voltage VCO's are widely used in every applications. This paper proposes a new CMOS VCO. The proposed VCO uses a single-ended delay cell and achieves the widest tuning range, speed in operation and improved noise performance. The supply voltage used in the proposed system is 1.2V. Moreover, it's simple topology features multiple advantages like area and linear frequency-voltage characteristics. The proposed system has achieved a very wide range of tuning and good noise performance compared to the conventional VCO's. The topology can be used in pulse based applications.