Voltage controlled oscillator with gain compensation

摘要

A voltage controlled oscillator includes at least one input port for receiving a control voltage and at least one voltage-to-current coupled to the input port for generating a control current in response to the control voltage. At least one current controlled oscillator generates an oscillating frequency output in response to the control current. At least one compensation branch is coupled to the voltage-to-current converter for generating a compensation current that increases the control current when the control voltage exceeds a predetermined value.