SIT3373AI-2E9-33NH281.000000

Oscillators Overview

The SiTime SIT3373AI-2E9-33NH281.000000 is a MEMS VCXO oscillator operating at 281 MHz with LVDS output signaling. It functions on a 3.3V supply and features ±35 ppm frequency stability alongside an absolute pull range of ±60 ppm. The device utilizes a 6-SMD, no lead exposed pad package measuring 7.00mm x 5.00mm. Designed for robust performance, it operates within a temperature range of -40°C to +85°C and draws a maximum supply current of 84mA.

Oscillators Feature Summary

• Integrates multiple on-chip regulators to filter power supply noise, eliminating the need for dedicated external LDOs.
• Delivers exceptional dynamic performance resistant to airflow, thermal gradients, shock, vibration, and EMI.
• 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 high stability in noisy environments
• Industrial applications subject to mechanical shock and vibration

Oscillators Procurement Notes

Verify the complete part number including suffixes against official SiTime documentation to ensure correct output type, voltage, and trim specifications. Confirm that the LVDS output and 3.3V supply requirements align with the target circuit design. Check for RoHS3 compliance status and ensure the 6-SMD package footprint matches the PCB layout constraints before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a differential LVDS output is required for a 281 MHz application. It is suitable for designs needing resistance to environmental stressors like vibration and thermal shifts. Consider its integrated power regulation if board space for external LDOs is limited. Ensure the ±35 ppm stability and ±60 ppm pull range meet the system's timing accuracy requirements.

Oscillators Part Context

This model belongs to the SiT3373 Elite Platform series, which utilizes DualMEMS temperature sensing and TurboCompensation technology. The series covers frequencies from 1 MHz to 725 MHz, offering various output types including LVPECL, LVDS, and HCSL. It is designed to replace quartz oscillators by providing programmability and superior dynamic performance.

Oscillators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult official SiTime cross-reference tools or datasheets for compatible alternatives within the SiT3373 family or other SiTime VCXO series.