SiT5346 Datasheet | SiTime

Description The Si T5346 is a ruggedized ±100 ppb precision MEMS Super-TCXO with a maximum acceleration sensitivity of 0.009 ppb/g or 0.1 ppb/g. Fully pliant to Telcordia GR1244-CORE Stratum 3 oscillator specifications, and engineered for best dynamic performance, the Si T5346 is ideal for high reliability defense, space, avionics, guidance, precision GNSS and munications applications. Leveraging Si Time’s unique Dual MEMS® temperature sensing and Turbopensation® technologies, the Si T5346 delivers the best dynamic performance for timing stability in the presence of environmental stressors such as air flow, temperature perturbation, vibration, shock, and electromagnetic interference. This device also integrates multiple on-chip regulators to filter power supply noise, eliminating the need for a dedicated external LDO. The Si T5346 offers three device configurations that can be ordered using Ordering Codes for: 1) TCXO with non-pullable output frequency, 2) VCTCXO allowing voltage control of output frequency, 3) DCTCXO enabling digital control of output frequency using an I2C interface, pullable to 5 ppt (parts per trillion) resolution. The Si T5346 can be factory programmed for any bination of frequency, stability, voltage, and pull range. Programmability enables designers to optimize clock configurations while eliminating long lead times and customization costs associated with quartz devices where each frequency is custom built. Refer to Manufacturing Guideline for proper reflow profile and PCB cleaning remendations to ensure best performance. Block Diagram Features - Any frequency from 1 MHz to 60 MHz in 1 Hz steps - Factory programmable options for short lead time - Best dynamic stability under airflow, thermal shock - 0.009 ppb/g or 0.1 ppb/g acceleration sensitivity - ±100 ppb stability across temperature - ±1 ppb/C typical frequency slope (ΔF/ΔT) - 1.5e-11 ADEV at 10 second averaging time - -40°C to +105°C operating temperature - No activity dips or micro jumps -...