The 2 oscillator circuits below are appropriate for using crystal oscillators in sequence or parallel mode: Modeling of nonlinear micromechanical resonators and their simulation While using the harmonic‐balance strategy PDF The type of amplifier you may need will count on the frequency. Op-amps may work at reduced-frequency gates lower to https://www.hxcrystals.com/seokeywords/bulk-crystal-oscillator.html