Automatic calibration system for a voltage control oscillator

摘要: A signal generator including a calibration circuit for providing periodic recalibration of the generator, reference frequency source producing fixed signal. voltage controlled oscillator (VCO) variable in accordance with input to VCO. An adjustable dividing network coupled VCO by particular divider (N) produce an output equal divided "N". phase detector and error difference between filter representative programmable nonvolatile storage storing plurality individual values steps from converter converting stored signals. summer summing signals applying summed controlling steps. comparator comparing control comparison, controller reprogramming recalibrate