An Oven Controlled +/-1.6ppm stable 0.32mm FBAR based Transformer coupled Colpitts Oscillator
نویسندگان
چکیده
The first fully integrated oven-controlled temperature compensation system with the transformer coupled Colpitts oscillator is developed by 65nm CMOS tech. This work achieves ±1.55ppm frequency stability over the 85C temperature range which can be used for the GPS application (<2ppm). An integrated heater in the FBAR chip consumes 14mW power at maximum. The temperature resolution of TDC is 150uK, sufficient to achieve an Allan deviation of 4ppb. This corresponds to a 1.68pJK FOM. Keywords—FBAR, Colpitts oscillator, Oven-controlled temperature compensation, clock generator
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