The XCalibur™ SiT1421 active resonator is a MEMS-based drop-in replacement for quartz crystal resonators. As an active MEMS device, the SiT1421 eliminates issues related to crystal resonators, such as crystal motion impedance, oscillator negative resistance, and the need for tuning capacitors. Compared to traditional crystal resonators, XCalibur resonators have better reliability and better immunity to shock, vibration, and EMI.
