SIT3373AI-4E2-25NH281.000000

Oscillators Overview

The SIT3373AI-4E2-25NH281.000000 is a differential MEMS Voltage-Controlled Crystal Oscillator (VCXO) from the SiT3373 Elite Platform, operating at a nominal frequency of 281 MHz. It utilizes HCSL output signaling and requires a 2.5V supply voltage. The device offers a frequency stability of ±25 ppm and an Absolute Pull Range (APR) of ±170 ppm. Packaged in a compact 6-SMD, No Lead Exposed Pad form factor measuring 7.00mm x 5.00mm, it supports operation across a temperature range of -40°C to 85°C.

Oscillators Feature Summary

• DualMEMS technology provides robust performance for low-jitter applications
• Voltage-controlled functionality allows precise frequency tuning within specified pull range
• HCSL differential output ensures signal integrity in high-speed digital interfaces

Oscillators Applications

• High-speed data communication systems requiring precise clocking
• Network infrastructure equipment utilizing differential signaling
• Test and measurement instruments demanding stable frequency control

Oscillators Procurement Notes

Verify that the specific ordering suffix matches the required voltage, frequency, and package configuration. Confirm RoHS3 compliance status if environmental regulations apply to the assembly process. Ensure the design-in includes appropriate load conditions for the HCSL output stage to maintain signal quality.

Oscillators Selection Notes

Select this component when a differential VCXO with HCSL outputs is required in the 220 MHz to 725 MHz range. Consider the ±170 ppm pull range against system jitter requirements. Evaluate the 6-SMD exposed pad package for thermal management and PCB space constraints compared to alternative oscillator packages.

Oscillators Part Context

This part belongs to the SiTime SiT3373 series, which features DualMEMS technology for enhanced reliability over traditional quartz crystals. The Elite Platform designation indicates advanced programmability and performance characteristics tailored for demanding industrial and communications environments.

Oscillators Replacement Considerations

Direct substitutes within the same family include SIT3373AI-4E3-25NH281.000000, which differs primarily in supply voltage specifications. Verify pin compatibility and electrical parameters before substitution.