The IQRB-1 rubidium oscillator is a sub-miniature atomic clock exhibiting normal rubidium oscillator performance in a 65cc OCXO style package.
This rubidium oscillator has 100 times less drift than OCXOs and with short term stability of 0.008ppb/s at 100s, this rubidium oscillator provides significant improvements in performance over OCXOs.
Datasheets