Patent ID: 8471643

Claim:
Apparatus including a resonator-based oscillator, comprising: an active component having an input and an output; and a passive component having an input coupled to the active component output and an output coupled to the active component input, the passive component including one or more contour mode resonators (CMR) having dimensions including a length, a width, and a thickness and including: a first conductive layer, a second conductive layer, a piezoelectric layer disposed between the first conductive layer and the second conductive layer, an input electrode being defined in one of the conductive layers and longitudinally oriented along the length, the input electrode coupled to the passive component input, and an output electrode being defined in one of the conductive layers and longitudinally oriented along the length, the output electrode coupled to the passive component output; the one or more CMRs configured to resonate: at a fundamental frequency, and at a resonant frequency being an odd integer multiple of and different from the fundamental frequency, such that the passive component is configured to output the fundamental frequency and the resonant frequency; and the active component configured to output a digital signal defined by the fundamental frequency and the resonant frequency.