090-02789-012

Overview

The Microchip Technology part number 090-02789-012 corresponds to the LC03911, a Chip Scale Atomic Clock (CSAC) utilizing SA65 technology. This component is designed for high-stability frequency reference applications. It operates within a temperature range of -40°C to +80°C and provides a standard output frequency of 10 MHz. The device is classified as non-RoHS compliant. It serves as a compact alternative to traditional oven-controlled crystal oscillators, offering superior phase noise and long-term stability in a small form factor suitable for space-constrained electronic systems.

Feature Summary

• Integrates Chip Scale Atomic Clock (CSAC) technology based on the SA65 architecture for enhanced frequency precision.
• Delivers a stable 10 MHz output signal with low phase noise characteristics.
• Engineered for operation across an extended industrial temperature range from -40°C to +80°C.

Applications

• Navigation and GPS receiver modules requiring precise timing references
• Telecommunications base stations and synchronization equipment
• Military and aerospace avionics systems demanding high reliability

Procurement Notes

Verify compliance requirements carefully as this specific unit is identified as non-RoHS. Confirm that the 10 MHz output specification aligns with system design needs. Ensure thermal management strategies accommodate the specified operating temperature range of -40°C to +80°C during integration. Cross-reference the LC03911 datasheet for detailed electrical characteristics before finalizing procurement decisions.

Selection Notes

Select this component when superior short-term stability and aging performance are critical compared to standard crystal oscillators. Consider the physical size constraints as it offers a CSAC footprint. Evaluate power consumption profiles against available supply rails. Verify interface compatibility for the 10 MHz clock distribution network within the target application environment.

Part Context

This part belongs to Microchip's atomic clock product line, specifically leveraging SA65 technology. It replaces larger, less reliable vacuum tube or bulky OCXO solutions. The LC03911 variant represents a specialized implementation focused on ruggedized environments where frequency drift must be minimized over time and temperature variations.

Replacement Considerations

Direct substitutes may include other CSAC models from Microchip or competitors offering similar 10 MHz outputs. Verify pinout compatibility and mechanical dimensions if swapping. Check if RoHS-compliant alternatives are required for specific regulatory markets, as this unit is explicitly non-RoHS.