SIT3372AI-2B9-28NE148.425787

Oscillators Overview

The SiTime SIT3372AI-2B9-28NE148.425787 is a differential MEMS Voltage-Controlled Crystal Oscillator (VCXO) engineered for low-jitter applications. It operates at a nominal frequency of 148.425787 MHz with a supply voltage of 2.8V. The device utilizes DualMEMS temperature sensing and TurboCompensation technology to deliver exceptional dynamic performance, providing resistance to airflow, thermal gradients, shock, and vibration. It integrates multiple on-chip regulators to filter power supply noise, eliminating the need for an external LDO. The component features LVPECL output signaling and is housed in a compact 6-SMD, No Lead package.

Oscillators Feature Summary

• Integrates DualMEMS temperature sensing and TurboCompensation technology for high dynamic stability against environmental stressors.
• Includes on-chip voltage regulators to filter power supply noise without requiring dedicated external components.
• Factory programmable architecture allows customization of frequency, stability, voltage, output signaling, and pull range.

Oscillators Applications

• Telecommunications equipment requiring precise clock synchronization
• Networking infrastructure utilizing high-speed data transmission
• Industrial systems operating in noisy or thermally variable environments

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure the correct output format, voltage level, and frequency match the design requirements. Confirm that the 6-SMD package dimensions align with the PCB footprint. Check for any specific manufacturing notes regarding reflow profiles or tape and reel dimensions required for assembly. Ensure compatibility with the system's power supply noise filtering needs given the integrated regulator capabilities.

Oscillators Selection Notes

Select this component when designing systems that require differential VCXO functionality with ultra-low jitter characteristics. Consider its programmability for optimizing clock configurations compared to custom quartz devices. Evaluate its resistance to shock, vibration, and thermal gradients for robust operation in challenging environments. Verify that the LVPECL output interface matches the receiving device's input requirements.

Oscillators Part Context

The SiT3372 series represents SiTime’s solution for precision timing in demanding applications. It replaces traditional quartz oscillators by offering a silicon MEMS-based alternative with superior resilience to mechanical stress and thermal changes. The family supports a wide frequency range from 1 MHz to 220 MHz, enabling designers to eliminate long lead times and customization costs associated with standard quartz parts.

Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult SiTimeDirect for equivalent configurations within the SiT3372 family that match specific frequency and voltage requirements.

Oscillators FAQ

Does the SIT3372AI require an external Low Dropout Regulator (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 SiT3372 use to ensure dynamic stability?

It utilizes SiTime’s unique DualMEMS temperature sensing and TurboCompensation technology to provide resistance to airflow, thermal gradients, shock, and vibration.