SiTime Corporation Ruggedized MHz Super-TCXOs SIT5348AE-FR-33N0B54.000000

The SiT5348 is a precision MEMS Super-TCXO designed for aerospace and defense applications, offering ±50 ppb frequency stability from -40°C to 105°C with acceleration sensitivity of 0.009 ppb/g. It operates from 1 MHz to 60 MHz in 1 Hz steps, features on-chip power regulators to eliminate external LDOs, and supports LVCMOS or clipped sinewave outputs. Packaged in a 5.0 mm × 3.2 mm ceramic case, it meets RoHS and REACH compliance and includes digital frequency control via I2C for DCTCXO variants. The device exhibits high shock survivability above 30,000 g, no activity dips, and low phase noise with 1.5e-11 ADEV at 10-second averaging. The specific part number SIT5348AE-FR-33N0B54.000000 corresponds to a DCTCXO configuration with 3.3 V supply, 0.009 ppb/g g-sensitivity, and a 54.000000 MHz output frequency.