Methods and systems for reducing a frequency drift in a voltage controlled oscillator (VCO)

A method for reducing a temperature-induced frequency drift in a voltage to current (V2I) converter based voltage-controlled oscillator (VCO) for at least one wide band phase-locked loop (PLL), the VCO including the V2I converter and a current controlled oscillator (CCO), the V2I converter including a V2I resistor node at one end of a resistor, the V2I converter being connected to the CCO, and the method comprising:

• providing, by a first portion of a circuit, a fixed offset current to the V2I resistor node to cause at least one V2I output current to have a value conversely proportional to absolute temperature (CTAT), the at least one V2I output current being output by the V2I converter;
• and
• mirroring, by a second portion of the circuit, the at least one V2I output current to the CCO to reduce the temperature-induced frequency drift at a lower frequency band of the VCO.