SIT3373AC-1B3-28NE256.000000

Oscillators Overview

The SiTime SIT3373AC-1B3-28NE256.000000 is a MEMS voltage-controlled oscillator (VCXO) operating at 256 MHz with LVPECL output signaling. It functions within a 2.8V supply voltage range, supported by a minimum of 2.52V and maximum of 3.08V. The device exhibits a frequency stability of ±50 ppm and an absolute pull range (APR) of ±3145 ppm. Packaged in a 6-SMD, no-lead form factor measuring 7.00mm x 5.00mm, it operates across a temperature range of -40°C to 85°C.

Oscillators Feature Summary

• Integrates multiple on-chip regulators to filter power supply noise, eliminating the need for dedicated external LDOs.
• Utilizes DualMEMS temperature sensing and TurboCompensation technology for resistance to airflow, thermal gradients, shock, and vibration.
• Factory programmable for specific combinations of frequency, stability, voltage, output signaling, and pull range.

Oscillators Applications

• Telecommunications systems requiring low-jitter clock signals
• Networking equipment demanding stable differential oscillators
• Industrial applications operating in noisy environments

Oscillators Procurement Notes

Verify the complete part number including suffixes to ensure correct voltage, output type, and pull range specifications. Confirm that the required APR and stability match the application design constraints. Check datasheet for reflow profile compatibility and tape/reel dimensions during integration planning.

Oscillators Selection Notes

Select this component when a 256 MHz VCXO with LVPECL outputs is required. Ensure the system supports the 2.8V nominal supply voltage. Consider the ±3145 ppm pull range capability if frequency tuning is necessary. Verify that the 6-SMD package footprint aligns with the PCB layout requirements.

Oscillators Part Context

This model belongs to the SiT3373 Elite Platform series from SiTime. It is a differential MEMS VCXO designed for ultra-low jitter applications. The platform allows for factory programming of various electrical parameters, offering flexibility compared to traditional quartz oscillators.

Oscillators Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Direct replacement requires matching the exact frequency, output type, voltage, and package dimensions.

Oscillators FAQ

Does the SIT3373AC-1B3-28NE256.000000 require an external LDO?

No, the device integrates multiple on-chip regulators to filter power supply noise, eliminating the need for a dedicated external LDO.

What is the absolute pull range (APR) of this oscillator?

The absolute pull range is ±3145 ppm.