The 2 oscillator circuits underneath are suited to working with crystal oscillators in sequence or parallel method: Modeling of nonlinear micromechanical resonators as well as their simulation with the harmonic‐balance system 的很多特性，如温度稳定性，老化稳定性，等效电路参数，容性负载要求等，都与切割方式密切相关�?石英 The kind of amplifier you will require will rely on the frequency.... https://bookmark-rss.com/story18803091/an-unbiased-view-of-bulk-crystal-oscillator