SIT3373AC-4E9-28NG625.000000

Oscillators Overview

The SiTime SIT3373AC-4E9-28NG625.000000 is a differential MEMS voltage-controlled oscillator (VCXO) operating at a nominal frequency of 625 MHz. It features an HCSL output format and operates within a supply voltage range of 2.52 V to 3.08 V, typically centered at 2.8 V. The device provides a frequency stability of ±35 ppm across an industrial temperature range of -40°C to +85°C. Packaged in a compact 6-SMD, No Lead Exposed Pad form factor, it integrates on-chip regulators to filter power supply noise.

Oscillators Feature Summary

• Delivers ultra-low jitter performance suitable for demanding low-jitter applications
• Integrates multiple on-chip regulators to eliminate the need for external dedicated LDOs
• Provides resistance to airflow, thermal gradients, shock, vibration, and EMI

Oscillators Applications

• Telecommunications systems requiring precise clocking
• Networking equipment utilizing standard high-frequency interfaces
• Industrial applications operating in noisy environments with dynamic stressors

Oscillators Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure compatibility with required voltage levels, output formats, and pull ranges. Confirm that the package dimensions and pinout match the target PCB footprint. Cross-reference the part number with the latest manufacturing notes to validate reflow profiles and tape-and-reel specifications before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a differential VCXO is required for frequencies between 220 MHz and 725 MHz with HCSL signaling. It is appropriate for designs needing immunity to environmental stressors and simplified power architectures due to integrated regulation. Ensure the application supports the specified 2.8V supply and requires the ±35 ppm stability profile defined for this specific variant.

Oscillators Part Context

This model belongs to the SiT3373 Elite Platform series, which utilizes DualMEMS temperature sensing and TurboCompensation technology. The platform allows factory programming for various frequencies, stabilities, and output types, eliminating customization costs associated with quartz devices. It is designed to replace traditional oscillators in telecom and networking sectors where reliability and programmability are critical.

Oscillators Replacement Considerations

Direct substitution requires matching the 625 MHz frequency, HCSL output, and 6-SMD package. Verify that alternative MEMS VCXOs support the same 2.8V supply and ±35 ppm stability. Check for compatible absolute pull range options if frequency tuning is required in the design.