SiT5348 Datasheet | SiTime

Description The Si T5348 is a precision MEMS Super-TCXO optimized for ±50 ppb stability from 0°C to 70°C. It supports ±100 ppb stability in a wider temperature range (down to -40°C and up to 105°C). Engineered for best dynamic performance, it is ideal for high reliability tele, wireless and networking, industrial, precision GNSS and audio/video applications. Leveraging Si Time’s unique Dual MEMS® temperature sensing and Turbopensation® technologies, the Si T5348 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 T5348 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 T5348 can be factory programmed for any bination of 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. Features - Any frequency from 1 MHz to 60 MHz in 1 Hz steps - Factory programmable options for low lead time - Best dynamic stability under airflow, thermal shock - 0.009 ppb/g or 0.1 ppb/g acceleration sensitivity - ±50 ppb stability over temperature, 0°C to 70°C - ±1 ppb/°C typical frequency slope (ΔF/ΔT) - 1.5e-11 ADEV at 10 second averaging time - No activity dips or micro jumps - Resistant to shock, vibration, and board bending - On-chip regulators eliminate the need for...