SIT3373AI-2E2-25NH270.000000

Oscillators Overview

The SIT3373AI-2E2-25NH270.000000 is a differential MEMS voltage-controlled oscillator (VCXO) operating at 270 MHz with LVDS output signaling. It functions within a 2.5V supply and maintains a frequency stability of ±25 ppm across the -40°C to +85°C industrial temperature range. The device utilizes SiTime’s DualMEMS technology for enhanced dynamic performance, offering resistance to shock, vibration, and EMI. Integrated on-chip regulators filter power supply noise, removing the need for external LDOs. This programmable component supports factory customization of frequency, stability, voltage, and pull range.

Oscillators Feature Summary

• DualMEMS temperature sensing and TurboCompensation technology provide exceptional dynamic performance against environmental stressors.
• Integrated on-chip regulators filter power supply noise, eliminating the requirement for dedicated external low-dropout regulators.
• Factory programmability allows optimization of clock configurations by customizing frequency, stability, voltage, and output signaling.

Oscillators Applications

• Telecommunications infrastructure requiring precise timing synchronization
• Networking equipment demanding low-jitter differential clock signals
• Industrial applications operating in noisy environments with thermal gradients

Oscillators Procurement Notes

Verify that the specific ordering suffix matches the required output type, as variations exist between LVPECL and LVDS configurations for this series. Confirm the voltage and stability parameters align with system requirements before procurement. Ensure the package designation corresponds to the 6-SMD, No Lead form factor. Cross-reference the full part number against manufacturer documentation to validate the exact frequency and pull range specifications intended for the design.

Oscillators Selection Notes

Select this component when a differential VCXO is required for 270 MHz applications with strict jitter constraints. The LVDS output interface suits high-speed digital systems needing robust signal integrity. Consider this part for designs sensitive to mechanical shock or vibration due to its MEMS construction. The integrated regulation simplifies board layout by reducing external component count compared to traditional quartz solutions.

Oscillators Part Context

This model belongs to the SiT3373 Elite Platform family, which covers frequencies from 220 MHz to 725 MHz. It represents a shift from quartz-based oscillators to silicon MEMS technology, offering greater configurability and supply chain flexibility. The platform is designed for telecom and networking sectors where multiple pullable frequencies are necessary.

Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Designers should consult official cross-reference guides for equivalent MEMS VCXOs if direct substitution is required.

Oscillators FAQ

Does the SIT3373 require an external LDO for operation?

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

What technology enables the SiT3373's resistance to shock and vibration?

The device utilizes SiTime’s unique DualMEMS temperature sensing and TurboCompensation technology to deliver exceptional dynamic performance against airflow, thermal gradients, shock, and vibration.