SIT3373AI-4E3-30NU270.000000

Oscillators Overview

The SIT3373AI-4E3-30NU270.000000 is a differential MEMS Voltage-Controlled Crystal Oscillator (VCXO) operating at 270 MHz. It utilizes SiTime DualMEMS technology for low-jitter performance. The device functions within a supply voltage range of 3.0V and maintains frequency stability of ±50 ppm over the industrial temperature range of -40°C to +85°C. It features HCSL output signaling and is housed in a compact 6-pin surface-mount package with dimensions of 5.2 mm x 3.2 mm.

Oscillators Feature Summary

• DualMEMS architecture provides enhanced resistance to shock, vibration, and thermal gradients compared to traditional quartz solutions.
• Differential VCXO design enables precise frequency tuning while maintaining ultra-low jitter characteristics for high-speed data transmission.
• HCSL output interface ensures compatibility with standard high-speed digital receivers and reduces electromagnetic interference.

Oscillators Applications

• High-speed serial link clock generation
• Data converter reference clocks
• FPGA timing sources
• Telecommunications infrastructure equipment

Oscillators Procurement Notes

Verify that the specific suffix NU270.000000 matches the required 270 MHz frequency and ±50 ppm stability specifications. Confirm the HCSL output type aligns with the target receiver input requirements. Ensure the 3.0V supply voltage is compatible with the system power rails. Check the 6-SMD exposed pad package footprint against the PCB layout to guarantee proper thermal and electrical connection.

Oscillators Selection Notes

Select this component when differential clocking with voltage control capability is required for frequencies between 220 MHz and 725 MHz. The choice is driven by the need for superior robustness against mechanical stress and environmental variations compared to quartz oscillators. Consider the HCSL output swing and the specific ±50 ppm stability requirement for the application's timing budget.

Oscillators Part Context

This part belongs to the SiT3373 family of differential MEMS VCXOs. The series is engineered for applications demanding low jitter and high reliability. The AI-4E3 designation indicates specific manufacturing and qualification standards. The model represents a programmable solution within the broader SiTime portfolio of silicon-based timing devices.

Oscillators Replacement Considerations

Direct replacements must match the 270 MHz frequency, HCSL output, and 6-pin SMD package. Verify that any substitute offers comparable jitter performance and ±50 ppm stability across the -40°C to +85°C range. Ensure the replacement supports the same 3.0V supply voltage and has identical pinout compatibility.

Oscillators FAQ

What is the frequency tuning range of this VCXO?

The datasheet specifies a nominal frequency of 270 MHz with ±50 ppm stability. Specific linear tuning range details are typically defined in the full technical datasheet.

Does this oscillator use quartz or MEMS technology?

It utilizes SiTime's DualMEMS technology, which replaces traditional quartz crystals with silicon resonators for improved durability and lower jitter.