090-02984-008

Overview

The Microchip Technology part number 090-02984-008 is a Chip Scale Atomic Clock (CSAC) option, specifically the SA.45s variant designed for wide temperature operation. It provides a stable 10 MHz output frequency with CMOS signal type. The device operates within a supply voltage range of 3.2 VDC to 3.4 VDC, typically at 3.3 VDC. It supports through-hole installation and functions reliably across an operating temperature range from -10°C to +70°C. The unit weighs approximately 35 grams and is packaged in bulk quantities.

Feature Summary

• Provides high-stability 10 MHz timing reference via chip-scale atomic clock technology
• Engineered for wide temperature operational environments
• Delivers CMOS output signals for digital interface compatibility

Applications

• Military and aerospace navigation systems requiring precise timing
• Secure communications equipment needing robust frequency stability
• Industrial control systems operating in extreme thermal conditions

Procurement Notes

Verify that the specific application environment falls within the -10°C to +70°C operating range, as this part is designated for wide temperature use rather than extended industrial ranges. Confirm power supply constraints align with the 3.2 VDC to 3.4 VDC requirement. Ensure mechanical design accommodates the through-hole mounting style and 35-gram weight. Cross-reference datasheet revision history for any updates to the SA.45s specification before finalizing procurement.

Selection Notes

Select this component when standard crystal oscillators fail to meet long-term stability requirements without external oven control. The SA.45s architecture offers superior phase noise and aging characteristics compared to TCXOs. Consider the wider temperature rating (-10°C minimum) against standard commercial parts if ambient conditions fluctuate significantly. Evaluate system power budgets against the specific current consumption profiles detailed in the electrical characteristics section of the official datasheet.

Part Context

This part belongs to the Microchip SA.45s family of Chip Scale Atomic Clocks, which integrate atomic vapor cells into miniature packages. These devices replace traditional oven-controlled crystal oscillators (OCXOs) in applications demanding high stability in compact form factors. The 008 suffix specifically denotes the wide temperature variant, distinguishing it from standard commercial temperature options within the same product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Direct replacement requires verifying pinout compatibility and thermal performance equivalence with existing designs.