SIT3373AC-4B9-33NZ622.000000

Oscillators Overview

The SiTime SIT3373AC-4B9-33NZ622.000000 is a differential MEMS voltage-controlled oscillator (VCXO) operating at a nominal frequency of 622 MHz. It utilizes DualMEMS temperature sensing and TurboCompensation technology to deliver ultra-low jitter performance, with typical phase noise of 0.21 ps. The device supports HCSL output signaling and operates within a supply voltage range of 3.3V. It features an absolute pull range (APR) of up to ±3145 ppm and offers exceptional linearity. The component is designed for robust operation in noisy environments, resisting shock, vibration, and EMI, while integrating on-chip regulators to filter power supply noise.

Oscillators Feature Summary

• Integrates DualMEMS temperature sensing and TurboCompensation technology for resistance to thermal gradients, shock, and vibration.
• Features multiple on-chip regulators to filter power supply noise, eliminating the need for external LDOs.
• Provides factory-programmable combinations 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 harsh environments

Oscillators Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to ensure correct output type, stability, and pull range specifications. Confirm that the package style matches the required PCB footprint. Check for any specific manufacturing notes regarding reflow profiles or tape and reel dimensions if surface-mount assembly is planned. Ensure compatibility with the system's power supply requirements and signal integrity needs before finalizing procurement.

Oscillators Selection Notes

Select this VCXO when ultra-low jitter and high dynamic performance are critical for the application. Consider its ability to operate without external LDOs due to integrated on-chip regulators. Evaluate the need for programmability to optimize clock configurations and eliminate customization costs associated with quartz devices. Ensure the required pull range and output signaling type align with the design specifications.

Oscillators Part Context

The SiT3373 series represents SiTime's solution for high-frequency, low-jitter differential VCXOs ranging from 220 MHz to 725 MHz. This specific model targets applications needing precise frequency control and resilience against environmental stressors. It leverages MEMS technology to offer advantages over traditional quartz oscillators, including faster time-to-market and customizable parameters.

Oscillators Replacement Considerations

Public confirmed substitute part numbers: None identified in provided documentation.