Low Phase Noise Low Power Atomic Clocks

Microchip Technologies has developed low power ovenized crystal oscillators and atomic clocks that enable applications requiring high performance in low Size Weight and Power (SWaP) Applications. Recently products have been improved and integrated into a single package. The atomic clock for this design is the Chip Scale Atomic Clock (CSAC SA65) and the ovenized crystal oscillator is the Evacuated Miniature Crystal Oscillators(EXX421.) Both oscillators use a vacuum as an insulator to maintain a constant temperature for the physics package in CSAC and the crystal assembly for the EMXO. Additionally, the electronic designs use power optimized architecture to minimize power and maximize performance.