System and method using temperature tracking for a controlled oscillator

摘要

A system using temperature tracking for a controlled oscillator (CO) is provided. The system includes at least one coarse tuning capacitor circuit including a plurality of selectable coarse tuning capacitors operable in at least three modes of operation, thereby allowing switching between each coarse capacitor of the plurality of selectable coarse capacitors when a selected coarse tuning capacitor has reached one of its high tuning range and low tuning range.

主权项

1. A system using temperature tracking for a controlled oscillator (CO), the system comprising:
at least one coarse tuning capacitor circuit including a plurality of selectable coarse tuning capacitors operable in at least three modes of operation, thereby allowing switching between each coarse capacitor of the plurality of coarse capacitors when a selected coarse tuning capacitor has reached one of its high tuning range and low tuning range, wherein if during temperature tracking of the CO a coarse tuning capacitor selected for operation in a Tunable-Cap mode reaches one of an upper limit of its tuning range and a lower limit of its tuning range, changing a mode of operation of the coarse tuning capacitor selected for operation in the Tunable-Cap mode and selecting another coarse tuning capacitor for operation in the Tunable-Cap mode of operation based on the limit that was reached by a previously selected coarse tuning capacitor.