SIT3373AI-2E2-33NU644.531250

Oscillators Overview

The SIT3373AI-2E2-33NU644.531250 is a differential MEMS Voltage-Controlled Crystal Oscillator (VCXO) from SiTime's Elite Platform, operating at a nominal frequency of 644.53125 MHz. It utilizes LVDS output signaling and requires a 3.3V supply voltage. The device features a frequency stability of ±25 ppm and an absolute pull range of ±3170 ppm. It is housed in a compact 6-SMD, No Lead package with dimensions of 7.00mm x 5.00mm and a maximum seated height of 1.00mm. The component supports surface mount mounting and operates within a temperature range of -40°C to +85°C.

Oscillators Feature Summary

• Ultra-low jitter performance engineered for high-speed data handling applications
• DualMEMS technology provides robust timing stability and reliability
• Differential LVDS output interface ensures signal integrity
• Wide absolute pull range enables flexible frequency tuning

Oscillators Applications

• High-speed FPGA timing reference
• Data communication equipment clock generation
• Test and measurement instrument oscillators

Oscillators Procurement Notes

Verify the specific ordering suffix against the official SiTime datasheet to confirm output type, frequency, and stability specifications. Ensure the selected variant matches the required LVDS interface and 3.3V supply requirements for the target application circuit design.

Oscillators Selection Notes

Select this component when low jitter and wide pull range are critical for system synchronization. Compare the ±25 ppm stability and ±3170 ppm APR against alternative MEMS oscillators to ensure compatibility with the host device's clock input specifications and environmental temperature constraints.

Oscillators Part Context

This part belongs to the SiT3373 series, which comprises differential MEMS VCXOs designed for frequencies between 220 MHz and 725 MHz. The Elite Platform offers customizable parameters, allowing engineers to tailor jitter performance and pull range without compromising size or power consumption compared to traditional crystal solutions.

Oscillators Replacement Considerations

Direct replacements must match the 644.53125 MHz frequency, LVDS output, and 6-SMD package footprint. Verify that substitute components offer comparable jitter performance and pull range capabilities to maintain system timing integrity.