APPARATUS FOR PVT VARACTOR CALIBRATION OF FREQUENCY MULTIPLIER BASED ON INJECTION LOCKING SYSTEM AND THE METHOD THEREOF

摘要

Method and its charging method based on injection locked frequency multiplier are calibrated for PVT varactors. The present invention includes: first voltage controlled oscillator (VCO), generate an output frequency FVCO detectors (*=N number of) that multiplied by N number of (wherein N is constant) times and reference clock signal and generate the reference clock signal of poor corresponding testing result between the value of control voltage phase frequency detector () and a feedback clock signal (Fvco/N); One second VCO frequency (Fvco*M) is multiplied, and generating a first VCO output frequency is M (wherein M is constant) secondary, finally generates stable clock and high frequency clock signal and changes relative to PVT. ;The 2015 of copyright KIPO submissions