SIT3373AI-4B2-25NB240.000000

Oscillators Overview

The SiTime SIT3373AI-4B2-25NB240.000000 is a differential MEMS voltage-controlled oscillator (VCXO) operating at a nominal frequency of 240 MHz. It utilizes DualMEMS temperature sensing and TurboCompensation technology to deliver low-jitter performance with a typical jitter of 0.21 ps. The device features HCSL output signaling, operates on a 2.5V supply, and provides a frequency stability of ±25 ppm. Encased in a 6-SMD, No Lead package, it supports an operating temperature range from -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.
• Delivers exceptional dynamic performance by providing resistance to airflow, thermal gradients, shock, vibration, and EMI.
• Offers factory programmability for specific combinations of frequency, stability, voltage, output signaling, and pull range.

Oscillators Applications

• Telecommunications systems requiring precise clocking
• Networking equipment demanding low-jitter signals
• Industrial applications operating in noisy environments

Oscillators Procurement Notes

Verify the exact part number against the manufacturer's official documentation to ensure compatibility with your design requirements. Confirm that the HCSL output type and 2.5V supply voltage align with your system specifications. Check the operating temperature range and package dimensions for PCB layout integration. Ensure that the source is authorized to guarantee component authenticity and traceability.

Oscillators Selection Notes

Select this component when low jitter and high stability are critical for differential clock distribution. Consider its immunity to environmental stressors like vibration and shock compared to quartz alternatives. Evaluate the need for factory-programmed parameters to simplify inventory management. Assess whether the integrated power regulation meets your board space constraints.

Oscillators Part Context

This model belongs to the SiT3373 series of ultra-low jitter differential VCXOs. The series covers frequencies from 220 MHz to 725 MHz and offers various output types including LVPECL, LVDS, and HCSL. The AI suffix typically denotes specific packaging or reliability grades within the SiTime portfolio, designed for robust industrial and telecom use cases.

Oscillators Replacement Considerations

Direct substitutes include other SIT3373 variants with matching 240 MHz frequency and HCSL output, such as SIT3373AI-4E2-25NB240.000000. Verify pinout compatibility and electrical parameters before substitution.

Oscillators FAQ

Does the SIT3373AI 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 technology does the SiT3373 use for temperature compensation?

It utilizes SiTime’s unique DualMEMS temperature sensing and TurboCompensation technology.