Multi-core oscillator with transient supply voltage assisted mode switching

A transceiver comprising:

• voltage-controlled oscillator circuitry comprising a first core and a second core;
• and
• switching circuitry coupled to the first core, the second core, a first supply voltage, and a second supply voltage, the switching circuitry configured to
• couple the first core, the second core, or both, to the first supply voltage when the voltage-controlled oscillator circuitry is operating in a first mode, the first mode associated with a first voltage of the first core being out-of-phase with a second voltage of the second core, and
• couple the first core, the second core, or both, to the second supply voltage when the voltage-controlled oscillator circuitry switches from operating in the first mode to operating in a second mode, the second mode associated with the first voltage of the first core being in-phase with the second voltage of the second core.

An electronic device comprising:

• a transceiver comprising voltage-controlled oscillator circuitry comprising a first core and a second core and switching circuitry configured to couple the voltage-controlled oscillator circuitry to a first supply voltage and a second supply voltage;
• and
• processing circuitry communicatively coupled to the voltage-controlled oscillator circuitry, the processing circuitry configured to
• cause the voltage-controlled oscillator circuitry to operate in a first mode, the first mode associated with a first voltage of the first core being in-phase with a second voltage of the second core,
• operate the switching circuitry to couple the voltage-controlled oscillator circuitry to the first supply voltage,
• operate the switching circuitry to couple the voltage-controlled oscillator circuitry to the second supply voltage;
• cause the voltage-controlled oscillator circuitry to operate in a second mode, the second mode associated with the first voltage of the first core being out-of-phase with the second voltage of the second core;
• and
• operate the switching circuitry to couple the voltage-controlled oscillator circuitry to the first supply voltage while operating the voltage-controlled oscillator circuitry in the second mode.