SiTime Corporation Ruggedized MHz Super-TCXOs SiT5543AB-WW-30E0A10.000000

The SiT5543 is a 1 MHz to 60 MHz Endura™ ruggedized precision oscillator with ±5 ppb frequency stability over -40°C to 95°C, designed for aerospace and defense applications requiring high timing accuracy under environmental stress. It features a 7.0 mm × 5.0 mm ceramic package, LVCMOS or clipped sinewave output, and on-chip regulators that eliminate the need for external LDOs. The part supports supply voltages of 2.5 V, 2.8 V, 3.0 V, or 3.3 V, and offers digital frequency control up to ±3200 ppm via I2C. It exhibits ultra-low acceleration sensitivity of 0.01 ppb/g, daily aging of ±0.2 ppb, and 1.5e-11 ADEV at 10 seconds. The device is RoHS and REACH compliant, Pb-free, Halogen-free, and Antimony-free.