SiTime Corporation Ruggedized MHz Super-TCXOs SIT5346AI-FN-33VTA40.000000

The SiT5346 is a ruggedized precision MEMS Super-TCXO operating from 1 MHz to 60 MHz with factory-programmable frequency, stability, and voltage options, designed for high-reliability defense, space, avionics, and GNSS applications. It is packaged in a 5.0 mm x 3.2 mm surface-mount case and offers three configurations: TCXO, VCTCXO, and DCTCXO with I2C digital frequency control. This part is a VCTCXO variant with 3.3 V supply, clipped sinewave output, extended industrial temperature range (-40°C to +105°C), and ±400 ppm pull range. It achieves ±100 ppb frequency stability across temperature, 0.009 ppb/g acceleration sensitivity, and complies with Telcordia GR-1244-CORE Stratum 3 specifications. On-chip regulators eliminate the need for external LDOs, and it features no activity dips or micro jumps while resisting shock, vibration, and board bending.