SIT3372AI-4B3-25NE133.650000

Oscillators Overview

The SiTime SIT3372AI-4B3-25NE133.650000 is a differential MEMS VCXO operating at 133.65 MHz with LVPECL output signaling. It functions within a 2.5 V supply range and supports an absolute pull range of ±80 ppm. The device maintains frequency stability of ±25 ppm across an industrial temperature range of -40°C to +85°C. Packaged in a compact 3.2 mm x 2.5 mm surface-mount footprint, it integrates on-chip regulators to filter power supply noise without requiring external components.

Oscillators Feature Summary

• Utilizes DualMEMS temperature sensing and TurboCompensation technology for resistance to airflow, thermal gradients, shock, and vibration.
• Integrates multiple on-chip regulators to filter power supply noise, eliminating the need for dedicated external LDOs.
• Factory programmable for specific combinations of frequency, stability, voltage, output signaling, and pull range.

Oscillators Applications

• Telecommunications systems requiring precise clock synchronization
• Networking equipment demanding low-jitter differential signals
• Industrial applications operating in noisy or thermally variable environments

Oscillators Procurement Notes

Verify the complete part number against official SiTime documentation to ensure correct configuration. Confirm that the ordering suffix matches the required output type (LVPECL), voltage (2.5V), stability (±25ppm), and pull range (±80ppm). Cross-reference the package dimensions and reflow profile requirements with the manufacturer's datasheet before integration into the design.

Oscillators Selection Notes

Select this component when a differential VCXO with LVPECL outputs is required for 133.65 MHz applications. It is suitable for designs needing ±25 ppm stability and ±80 ppm pull range within the -40°C to +85°C range. Choose this part over quartz alternatives to benefit from programmability, reduced lead times, and enhanced resilience to mechanical stress and EMI.

Oscillators Part Context

This model belongs to the SiT3372 Elite Platform series, which features ultra-low jitter differential MEMS oscillators. The series supports frequencies from 1 MHz to 220 MHz and offers various output types including LVPECL, LVDS, and HCSL. The Elite Platform is engineered to maintain exceptional dynamic performance under environmental hazards such as shock, vibration, and power supply noise.

Oscillators Replacement Considerations

Direct substitutes must match the 133.65 MHz frequency, LVPECL output, 2.5V supply, ±25 ppm stability, and ±80 ppm pull range. Verify pin compatibility and thermal characteristics. Consult SiTime documentation for cross-referencing valid replacement part numbers within the same family.