Integrated electronic circuit comprising a tunable resonator

An acoustic resonator circuit intended for integration into a semiconductor product, the circuit comprising:

• a first block, a master block, included in a regulation loop, said first master block including at least a first adjustable resonator having first and second resonant frequencies, said at least first resonator being associated with at least one adjusting element having an inductor to cancel out said second resonant frequency and a capacitor to set tuning of said resonator to said first frequency;
• and
• a second block, a slave block, integrated into a linear circuit or a non-linear circuit, said second block including at least a second resonator paired to said at least first resonator,
• said regulation loop generating a control signal to control said adjusting element of said master block.

An apparatus, comprising:

• a first block including a first resonator, the first resonator element having first and second resonant frequencies and an adjustment element, the adjustment element including a first component to substantially cancel the second resonant frequency and a second component to tune the first resonator to the first resonant frequency in response to a control signal;
• a second block coupled to the first block, the second block including a second resonator element that is adjustable in response to the control signal;
• and
• a control loop coupled to the first and second blocks to provide the control signal.

A system, comprising:

• a wireless device;
• a semiconductor product included in the wireless device;
• and
• an electronic circuit arranged on the semiconductor product, the electronic circuit including:
• at least a first resonator element that can be adjusted in response to a control signal, the first resonator element having first and second frequencies and being part of at least one slave circuit;
• at least a second resonator element that can be adjusted in response to the control signal and being part of at least one master circuit;
• an adjustment element included with each resonator element, the adjustment element having a first partner element responsive to the control signal to tune the resonator element to the first frequency and having a second partner element to substantially cancel the second frequency;
• and
• at least one coupling element between the master and slave circuits to communicate the control signal.

A system, comprising:

• means for generating a control signal;
• slave means, including a first resonator element having first and second frequencies and having first and second partner elements associated with the first resonator element, for using the first partner element to tune the resonator to the first frequency in response to the control signal and for using the second partner element to substantially cancel the second frequency;
• and
• master means, including a second resonator element corresponding to the first resonator element, for providing the generated control signal to the first resonator element to control the first resonator element.

A method for resonators having first and second frequencies, the method comprising:

• coupling first and second elements to a first resonator of a master;
• generating a control signal;
• varying a characteristic of the first element to tune the first element close to the second frequency to substantially cancel the second frequency;
• providing the generated control signal to the second element to adjust tuning of the first resonator to the first frequency;
• and
• providing the generated control signal from the master to a second resonator, corresponding to the first resonator, of a slave and using the provided control signal to tune the second resonator of the slave to the first frequency.