SIT3372AC-2B9-33NG122.880000

Oscillators Overview

The SiTime SIT3372AC-2B9-33NG122.880000 is a MEMS Voltage-Controlled Crystal Oscillator (VCXO) operating at 122.88 MHz with LVDS output signaling. It functions within a supply voltage range of 2.97 V to 3.63 V, typically centered at 3.3 V. The device exhibits a frequency stability of ±25 ppm and operates across an extended temperature range from -20°C to +70°C. Packaged in a compact 3.2 mm x 2.5 mm surface-mount footprint with a maximum height of 0.85 mm, it integrates on-chip regulators for power noise filtering.

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 low-dropout regulators.
• Factory programmable architecture allows customization 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 or thermally variable environments

Oscillators Procurement Notes

Verify the specific ordering suffix against the official SiTime datasheet to ensure alignment with required electrical parameters such as output format, supply voltage, and frequency stability. Confirm that the package dimensions and reflow profile requirements match the target PCB assembly capabilities. Cross-reference the part number with authorized distributors to validate current availability status and lead times prior to finalizing procurement plans.

Oscillators Selection Notes

Select this component when designing systems requiring a differential VCXO with high immunity to environmental stressors like vibration and thermal shifts. The integrated power regulation simplifies board layout by removing the need for external LDOs. Ensure the application environment falls within the specified -20°C to +70°C operational range and that the 122.88 MHz frequency aligns with system timing requirements.

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 emphasizes programmability to replace custom quartz solutions. This specific variant targets telecom and networking sectors needing robust, small-footprint timing sources with factory-defined specifications.

Oscillators Replacement Considerations

Direct substitutes include other SiT3372 variants with matching 122.88 MHz frequency and LVDS outputs, such as SIT3372AI-2E9-33NE122.880000, provided stability and temperature ranges are compatible. Verify pin compatibility and electrical characteristics before substitution.