SIT3373AC-2B3-25NH491.520000

Oscillators Overview

The SiTime SIT3373AC-2B3-25NH491.520000 is a differential MEMS voltage-controlled oscillator (VCXO) operating at a nominal frequency of 491.52 MHz. It features LVDS output signaling and operates within a supply voltage range of 2.25 V to 2.75 V, typically centered at 2.5 V. The device exhibits a frequency stability of 50 ppm and is housed in a 7 mm x 5 mm surface-mount package with no leads. It is designed for low-jitter applications, offering resistance to environmental stressors such as shock, vibration, and EMI.

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 exceptional dynamic performance against thermal gradients and airflow.
• Factory programmable for specific combinations of frequency, stability, voltage, output signaling, and pull range.

Oscillators Applications

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

Oscillators Procurement Notes

Verify the complete part number including suffixes to ensure correct output format, voltage, and stability specifications. Confirm package dimensions and reflow profile requirements against your PCB design guidelines. Check availability status through authorized distributors as stock levels vary. Ensure compatibility with your system's power supply noise characteristics given the integrated regulation features.

Oscillators Selection Notes

Select this component when a differential VCXO is required for frequencies between 220 MHz and 725 MHz. Consider its MEMS-based robustness against mechanical stress compared to quartz alternatives. Evaluate the 50 ppm stability and LVDS output against your jitter budget and interface requirements. Factory programmability allows customization without long lead times associated with custom quartz builds.

Oscillators Part Context

This model belongs to the SiT3373 family 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 SiT3373 line is engineered for telecom, networking, and industrial sectors, providing resistance to environmental factors while integrating internal power regulation.

Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other SiT3373 variants only if they match the exact frequency, output type, and stability requirements.