SIT3372AI-4E3-28NC148.351648

Oscillators Overview

The SIT3372AI-4E3-28NC148.351648 is a differential MEMS Voltage-Controlled Crystal Oscillator (VCXO) manufactured by SiTime. It operates at a nominal frequency of 148.351648 MHz and utilizes HCSL output signaling. The device requires a supply voltage of 2.8V and is housed in a 6-SMD, No Lead package with an exposed pad. This component is engineered for low-jitter applications, leveraging DualMEMS temperature sensing and TurboCompensation technology to ensure stability against thermal gradients, shock, and vibration.

Oscillators Feature Summary

• Integrates on-chip regulators to filter power supply noise without requiring external LDOs
• Provides resistance to airflow, thermal gradients, shock, and vibration through DualMEMS technology
• Factory programmable for specific frequency, stability, voltage, and pull range configurations

Oscillators Applications

• Telecommunications systems requiring precise timing synchronization
• Networking equipment demanding low-jitter clock signals
• Industrial applications operating in electrically noisy environments

Oscillators Procurement Notes

Verify the complete part number including suffixes to ensure correct output format, voltage, and frequency specifications. Confirm that the HCSL output type matches the receiving circuit requirements. Check datasheet for reflow profile limits and tape/reel dimensions for automated assembly compatibility. Ensure supply voltage aligns with the 2.8V specification.

Oscillators Selection Notes

Select this component when a differential VCXO with HCSL outputs is required for frequencies around 148 MHz. Consider its robustness against environmental stressors compared to quartz alternatives. Evaluate the need for factory-programmed customization to eliminate lead times associated with standard quartz devices. Verify that the 6-SMD package fits the board layout constraints.

Oscillators Part Context

The SIT3372 series represents SiTime's ultra-low jitter differential MEMS VCXOs, covering frequencies from 1 MHz to 220 MHz. These devices are designed to replace traditional quartz oscillators in high-performance applications. The AI suffix indicates specific automotive or industrial grade variants within the broader product line, offering enhanced reliability and programmability.

Oscillators Replacement Considerations

Direct replacements must match the 148.351648 MHz frequency, HCSL output, and 2.8V supply. Cross-reference other SIT3372AI variants with different suffixes for alternative voltages or output types. Ensure any substitute maintains the same 6-SMD package footprint and pinout configuration.