SiTime Corporation Ruggedized MHz Super-TCXOs SIT5348AE-FRG33IHB10.000000

The SiT5348 is an ultra-precision MEMS Super-TCXO designed for aerospace and defense applications, delivering ±50 ppb frequency stability over the temperature range of -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 and features an on-chip regulator that eliminates the need for an external LDO. The device is available in a 5.0 mm x 3.2 mm ceramic package and supports LVCMOS output with a supply voltage of 3.3 V ±10%. The DCTCXO configuration includes I2C digital control for frequency pulling with 5 ppt resolution and a pull range of ±100 ppm, while pin 1 functions as Output Enable. It meets RoHS and REACH compliance with Pb-free, halogen-free, and antimony-free construction.