SiTime's Elite Super-TCXO dynamic performance is compared to best-in-class 50-ppb quartz TCXO performance with a side-by-side test of the two devices simultaneously subjected to common environmental conditions: airflow, temperature ramp, tap test, and VDD fluctuation. Results of the quartz TCXO are shown on the left; results of the Elite MEMS Super-TCXO are shown on the right.