Architecture for voltage sharing between two oscillators

An electronic system comprising a first and a second oscillator that are mutually cross-coupled and have one and the same resonant frequency, each said oscillator comprising an electrical resonator, an active cell having a negative small-signal resistance linked to said electrical resonator, an electric power supply terminal of said active cell, an output for an oscillation signal and a terminal for connection to a ground point, wherein:

• the electric power supply terminal of the second oscillator and the terminal for connection to a ground point of the first oscillator are linked to one and the same point, termed dynamic ground;
• and
• the system also comprises a differential amplifier having a first input that is able to be connected to a reference voltage source, a second input linked to said dynamic ground point, and an output linked to a terminal for controlling the bias current of one from the first and the second oscillator so as to form a feedback loop designed to keep the potential of said dynamic ground point at a constant level, dependent on said reference voltage.