090-02789-002

Overview

The Microchip Technology part number 090-02789-002 identifies a Chip Scale Atomic Clock (CSAC-SA65) optimized for industrial applications with RoHS 3 compliance. This component operates at a nominal frequency of 10 MHz and is designed to function within an extended temperature range of -40°C to +80°C. The device provides high-frequency stability, characterized by an Allan deviation of less than or equal to 3 x 10^-10 at tau=1 second, less than or equal to 1.0 x 10^-10 at tau=10 seconds, and less than or equal to 3 x 10^-11 at tau=100 seconds.

Feature Summary

• Provides precise timing reference through chip-scale atomic clock technology
• Engineered for robust operation in demanding industrial environments
• Complies with RoHS 3 environmental standards for material restrictions

Applications

• Industrial control systems requiring stable clock sources
• Telecommunications infrastructure equipment
• Aerospace and defense navigation systems

Procurement Notes

Verify the specific suffix '002' corresponds to the Industrial grade variant with RoHS 3 compliance when sourcing. Confirm that the required operating temperature range aligns with the -40°C to +80°C specification. Ensure design-in documentation references the correct CSAC-SA65 model family to avoid confusion with commercial variants.

Selection Notes

Select this component when high stability is critical without the size constraints of traditional oven-controlled crystal oscillators. Consider the 10 MHz output requirement and the need for low phase noise performance over short averaging times. Evaluate the thermal management requirements associated with atomic clock operation within the specified industrial temperature envelope.

Part Context

This part belongs to the CSAC-SA65 family of Chip Scale Atomic Clocks manufactured by Microchip Technology. These devices represent a class of timing solutions that combine the stability of atomic resonance with the compact form factor of semiconductor packaging, serving as alternatives to larger vacuum tube-based atomic clocks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Microchip resources for cross-reference data regarding compatible timing components.