SIT3373AI-1B2-33NZ280.550000

Oscillators Overview

The SIT3373AI-1B2-33NZ280.550000 is a MEMS VCXO oscillator operating at a nominal frequency of 280.55 MHz with LVPECL output signaling. It functions within a supply voltage range of 3.3V and features a frequency stability of ±25 ppm. The device supports an absolute pull range of ±1570 ppm, allowing for significant frequency adjustment. It is housed in a compact 6-SMD, No Lead package and is rated for operation across an industrial temperature range of -40°C to +85°C.

Oscillators Feature Summary

• Utilizes MEMS technology for enhanced resistance to shock and vibration compared to quartz alternatives
• Integrates on-chip regulators to filter power supply noise without requiring external LDOs
• Factory programmable for specific frequency, stability, and pull range configurations

Oscillators Applications

• Telecommunications infrastructure requiring precise clocking
• High-speed networking equipment demanding low jitter performance
• Industrial systems operating in noisy or thermally variable environments

Oscillators Procurement Notes

Verify the complete part number against the manufacturer's official datasheet to ensure compatibility with your design requirements. Confirm that the specified 280.55 MHz frequency, LVPECL output type, and ±25 ppm stability match your system specifications. Ensure the 3.3V supply voltage and 6-SMD package dimensions are suitable for your PCB layout and thermal management strategy before finalizing procurement.

Oscillators Selection Notes

Select this component when designing systems that require a Voltage Controlled Crystal Oscillator (VCXO) with wide pullability and high dynamic stability. The MEMS-based architecture offers superior resilience to mechanical stress and thermal gradients compared to traditional quartz devices. Consider this model for applications needing factory-programmed customization to eliminate lead times associated with custom quartz builds while maintaining strict timing accuracy in challenging operational conditions.

Oscillators Part Context

This component belongs to the SiTime SIT3373 series, which represents the Elite Platform family of MEMS oscillators. These devices are engineered to replace traditional quartz solutions by offering greater flexibility in frequency selection and improved robustness against environmental factors. The series leverages proprietary DualMEMS temperature sensing and TurboCompensation technologies to deliver exceptional phase noise and jitter performance across varying temperatures.

Oscillators Replacement Considerations

Direct replacements must match the 280.55 MHz frequency, LVPECL output, and 3.3V supply. Verify pinout compatibility for the 6-SMD package. Cross-reference with other SIT3373 variants if different pull ranges or stability levels are acceptable, ensuring the substitute maintains the required absolute pull range of ±1570 ppm and operates within the -40°C to +85°C temperature window.