Exemplary embodiments of the invention provide a reference signal
generator, system and method. An exemplary apparatus to generate a
harmonic reference signal includes a reference resonator, such as an
LC-tank, and a frequency controller. The reference resonator generates a
first reference signal having a resonant frequency, and the frequency
controller maintains substantially constant a magnitude of a peak
amplitude of the first reference signal and maintains substantially
constant a common mode voltage level of the reference resonator. A
temperature-dependent control voltage is also generated and utilized to
maintain the resonant frequency substantially constant or within a
predetermined variance of a calibrated or selected frequency.