Wideband dual-tuned ring voltage controlled oscillator

摘要

The present invention relates to a voltage controlled oscillator. The voltage controlled oscillator, the first voltage and the DAC (Digitla-to-Analog Converter) to between the first voltage lower than the second voltage output a voltage corresponding to evenly divide the voltage level of the selected voltage level to a predetermined number of section, and includes a first and a two-stage ring VCO portion including a second delay cell, and converts the voltage outputted from the DAC unit at a constant voltage, a voltage regulator for supplying the VOC unit to set the voltage for setting the frequency band. According to the invention, the voltage to frequency gain (K _VCO ) is a broadband dual tuning ring voltage controlled oscillator having the ability to adjust is provided.