Frequency and/or phase compensated microelectromechanical oscillator

A compensated microelectromechanical oscillator, comprising:

• a microelectromechanical resonator to generate an output signal wherein the output signal includes a frequency;
• frequency adjustment circuitry, coupled to the microelectromechanical resonator, to receive the output signal of the microelectromechanical resonator and, in response to a set of values, to generate an output signal having an output frequency, wherein
• (i) the frequency adjustment circuitry includes frequency multiplier circuitry, and
• (ii) the frequency of the output signal of the frequency adjustment circuitry is greater than the frequency of the output signal of the microelectromechanical resonator;
• and
• wherein the set of values is determined using information which is representative of (1) the frequency of the output signal of the microelectromechanical resonator and (2) an operating temperature of the microelectromechanical resonator.

A compensated microelectromechanical oscillator, comprising:

• a microelectromechanical resonator to generate an output signal wherein the output signal includes a first frequency;
• frequency adjustment circuitry, coupled to the microelectromechanical resonator, to receive the output signal of the microelectromechanical resonator and to generate an output signal, having a second frequency which is greater than the first frequency, using (1) the output signal of the microelectromechanical resonator and (2) a set of values, wherein the frequency adjustment circuitry includes frequency multiplier circuitry;
• and
• wherein the values are determined, at least in part, using information which is representative of the first frequency.

A method of programming a temperature compensated microelectromechanical oscillator having (1) a microelectromechanical resonator to generate an output signal having a first frequency, and (2) frequency adjustment circuitry, coupled to the microelectromechanical resonator to receive the output signal and to provide an output signal having a frequency that is (i) within a predetermined range of frequencies and (ii) greater than the first frequency, the method comprising:

• measuring the first frequency of the output signal of the microelectromechanical resonator when the microelectromechanical resonator is at a first operating temperature;
• calculating a first set of values;
• and
• providing the first set of values to the frequency adjustment circuitry wherein, in response to the first set of values, the frequency adjustment circuitry generates the output signal having the frequency that is (i) within the predetermined range of frequencies and (ii) greater than the first frequency.

A method of operating a temperature compensated microelectromechanical oscillator having (1) a microelectromechanical resonator to generate an output signal wherein the output signal includes a first frequency, and (2) frequency adjustment circuitry, coupled to the microelectromechanical resonator to receive the output signal of the microelectromechanical resonator wherein, in response to a first set of values, the frequency adjustment circuitry provides an output signal having a second frequency wherein the second frequency is (i) within a predetermined range of frequencies and (ii) greater than the first frequency, the method comprising:

• acquiring data which is representative of the temperature of the microelectromechanical resonator;
• determining that the microelectromechanical resonator is at a second operating temperature;
• and
• providing a second set of values to the frequency adjustment circuitry, wherein the frequency adjustment circuitry, in response to the second set of values, generates an output signal having a frequency that is (1) within the predetermined range of frequencies when the microelectromechanical resonator us at the second operating temperature and (2) greater than the frequency of the output signal of the microelectromechanical resonator.

A compensated microelectromechanical oscillator, comprising:

• a microelectromechanical resonator to generate an output signal wherein the output signal includes a frequency;
• frequency adjustment circuitry, coupled to the microelectromechanical resonator, to generate an output signal using the output signal of the microelectromechanical resonator and a set of values, wherein:
• (i) the frequency adjustment circuitry includes frequency divider circuitry comprising a PLL, DLL, FLL or digital/frequency synthesizer, and
• (ii) the output signal of frequency adjustment circuitry includes a frequency that is less than the frequency of the output signal of the microelectromechanical resonator;
• and
• wherein the set of values is determined using information which is representative of (1) the frequency of the output signal of the microelectromechanical resonator and (2) an operating temperature of the microelectromechanical resonator.

A compensated microelectromechanical oscillator, comprising:

• a microelectromechanical resonator to generate an output signal wherein the output signal includes a frequency;
• frequency adjustment circuitry, coupled to the microelectromechanical resonator, to generate an output signal using the output signal of the microelectromechanical resonator and a set of values, wherein:
• (i) the frequency adjustment circuitry includes frequency divider circuitry comprising a PLL, DLL, FLL or digital/frequency synthesizer, and
• (ii) the output signal of frequency adjustment circuitry includes a frequency that is less than the frequency of the output signal of the microelectromechanical resonator;
• and
• wherein the set of values is determined using information which is representative of an operating temperature of the microelectromechanical resonator.