New Method for 100-MHz High-Frequency Temperature-Compensated Crystal Oscillator

The implementation of high-performance and high-frequency temperature-compensated crystal oscillator (HFTCXO) still faces great challenges. In this article, a new temperature-compensation method for HFTCXO with closed-loop architecture is described. The sample of 100-MHz HFTCXO with the measured temperature stability of ±0.22ppm/-40 °C ~ +85 °C and the phase noise of -151 dBc/Hz@1 kHz and -163 dBc/Hz@10 kHz was designed. Experimental results show that this method can realize real-time high-precision temperature compensation of high-frequency crystal oscillator.