SIT3373AC-2B9-33NH644.531250

Oscillators Overview

The SiTime SIT3373AC-2B9-33NH644.531250 is a differential MEMS voltage-controlled oscillator (VCXO) operating at a nominal frequency of 644.53125 MHz. It utilizes DualMEMS temperature sensing and TurboCompensation technology to deliver exceptional dynamic performance, including resistance to airflow, thermal gradients, shock, and vibration. The device features integrated on-chip regulators that filter power supply noise, eliminating the need for an external LDO. It provides LVDS output signaling with a 3.3V supply voltage in a 6-SMD, No Lead package measuring 5.2 mm x 3.2 mm.

Oscillators Feature Summary

• Integrates multiple on-chip regulators to filter power supply noise without requiring dedicated external LDOs
• Delivers exceptional dynamic performance through resistance to airflow, thermal gradients, shock, and vibration
• Utilizes DualMEMS temperature sensing and TurboCompensation technology for low-jitter applications

Oscillators Applications

• Telecommunications systems
• Networking equipment
• Industrial applications requiring pullable frequencies

Oscillators Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct frequency, stability, and output signaling configuration. Confirm that the package dimensions and pinout match the design requirements. Check for RoHS compliance status as indicated in the datasheet. Ensure the supply voltage matches the 3.3V specification required for this variant. Validate the lead-free status if applicable to your assembly process.

Oscillators Selection Notes

Select this component when low jitter and environmental robustness are critical. The integrated regulators simplify the power design by removing the need for external filtering components. Consider the factory programmability for optimizing clock configurations. Evaluate the wide frequency range and pull range options against system requirements. This device is suitable for noisy environments where quartz devices may suffer from long lead times or customization costs.

Oscillators Part Context

The SiT3373 series is designed for low-jitter applications across a wide frequency range. It offers multiple output types including LVPECL, LVDS, and HCSL. The device supports various absolute pull range options up to ±3145 ppm. Factory programming allows for customized combinations of frequency, stability, voltage, and pull range. This flexibility eliminates the need for custom-built quartz solutions.

Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.