SIT3372AC-4B2-25NX128.000000

Oscillators Overview

The SiTime SIT3372AC-4B2-25NX128.000000 is a MEMS VCXO oscillator operating at 128 MHz with HCSL output signaling. It functions within a 2.5 V supply range and features ±25 ppm frequency stability. The device utilizes DualMEMS temperature sensing and TurboCompensation technology for dynamic performance against thermal gradients, shock, and vibration. Integrated on-chip regulators filter power supply noise, removing the need for external LDOs. It supports factory programming for specific frequency, stability, voltage, and pull range combinations to optimize clock configurations.

Oscillators Feature Summary

• Integrates DualMEMS temperature sensing and TurboCompensation technology for resistance to environmental hazards
• Includes multiple on-chip regulators to filter power supply noise without requiring dedicated external LDOs
• Factory programmable for customized combinations of frequency, stability, voltage, and pull range

Oscillators Applications

• Telecommunications systems requiring low-jitter differential clocks
• Networking equipment needing reliable timing in noisy environments
• Industrial applications subject to shock, vibration, or thermal gradients

Oscillators Procurement Notes

Verify the exact ordering suffix matches the required output type (HCSL), voltage (2.5V), and stability (±25ppm). Confirm package dimensions align with PCB layout constraints. Ensure reflow profiles follow manufacturer guidelines for proper assembly. Check RoHS compliance status if required by project specifications. Validate that the programmed parameters match the design requirements before finalizing procurement.

Oscillators Selection Notes

Select this component when ultra-low jitter and high linearity are critical for system performance. Choose based on the need for programmability to eliminate custom quartz lead times. Consider the integrated regulation benefits for simplified power design. Evaluate the operating temperature range suitability for the target environment. Compare against other Elite Platform devices for specific pull range or frequency needs.

Oscillators Part Context

This part belongs to the SiTime Elite Platform family of MEMS oscillators. It represents an upgrade over standard quartz VCXOs by offering superior resilience to mechanical stress and power supply variations. The platform enables rapid customization through factory programming, reducing inventory complexity. It is designed for high-reliability applications where traditional crystal oscillators may fail under dynamic conditions.

Oscillators Replacement Considerations

Direct replacements require matching the 128 MHz frequency, HCSL output, and 2.5V supply. Verify pin compatibility and footprint size (6-SMD, No Lead) for direct substitution. Ensure the replacement device offers comparable jitter performance and pull range linearity. Check if the alternative supports similar environmental robustness standards.