SIT3372AC-2B3-28NU148.500000

Oscillators Overview

The SiTime SIT3372AC-2B3-28NU148.500000 is a MEMS VCXO oscillator operating at 148.5 MHz with LVDS output signaling. It functions within a 2.8V supply range and maintains frequency stability of ±50 ppm across an industrial temperature span of -20°C to +70°C. The device utilizes a compact 6-SMD, no-lead package measuring 3.2mm x 2.5mm. Designed for low-jitter applications, it integrates on-chip regulators to filter power supply noise, eliminating the need for external LDOs. This programmable component supports dynamic performance against thermal gradients and vibration.

Oscillators Feature Summary

• Integrates DualMEMS temperature sensing and TurboCompensation technology for resistance to airflow, shock, and vibration
• Includes multiple on-chip regulators to filter power supply noise without requiring dedicated external LDOs
• Factory programmed for specific combinations of frequency, stability, voltage, and pull range

Oscillators Applications

• Telecommunications systems requiring precise clocking
• Networking equipment demanding low-jitter differential signals
• Industrial applications operating in noisy environments with thermal variations

Oscillators Procurement Notes

Verify the complete part number including suffix NU against official SiTime documentation to ensure correct pull range and packaging specifications. Confirm that the 2.8V supply requirement aligns with system power rails. Check reflow profile compatibility for the 6-SMD no-lead package during assembly planning. Ensure ESD handling procedures are followed as per manufacturer guidelines for MEMS devices.

Oscillators Selection Notes

Select this model when a 148.5 MHz LVDS VCXO is required with ±50 ppm stability. Consider the integrated noise filtering capabilities if external LDO space is limited. Evaluate the 3.2x2.5mm footprint against board layout constraints. Verify that the -20°C to +70°C operating range meets environmental requirements. Compare absolute pull range options if frequency tuning flexibility is needed beyond standard configurations.

Oscillators Part Context

This component belongs to the SiTime Elite Platform family of ultra-low jitter differential VCXOs. The series supports frequencies from 1 MHz to 220 MHz with various output types including LVPECL, LVDS, and HCSL. The platform emphasizes programmability to replace custom quartz solutions, offering reduced lead times and optimized clock configurations for telecom and industrial markets.

Oscillators Replacement Considerations

Direct substitutes require matching 148.5 MHz frequency, LVDS output, 2.8V supply, and ±50 ppm stability. Verify pinout compatibility for the 6-SMD no-lead package. Cross-reference absolute pull range specifications to ensure equivalent tuning capability. Confirm operating temperature range alignment for the target application environment.