Podcasts · The Hardware Podcast with Fexingo: Chips, Devices, and Electronics Engineering Conversations
How Chips Are Using On-Chip Atomic Clocks for Precision Timing
· 9:42 · S3 E106
Episode How Chips Are Using On-Chip Atomic Clocks for Precision Timing
Lucas and Luna explore the cutting edge of chip-scale atomic clocks, focusing on how CSACs are shrinking atomic timing into a chip form factor. They discuss the breakthrough at NIST in 2024 that achieved a fractional frequency instability of 10^-15 at one hour of averaging, and how companies like Microsemi (now part of Microchip Technology) are commercializing these for GPS-denied environments. The episode drills into the physics of coherent population trapping and the practical trade-offs between power consumption and long-term stability. Listeners learn why a chip that loses one second every 300 million years is now a real product.
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Transcript
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