KCCS
Precision Timing
High-precision 1PPS-disciplined oscillator locked to external 1PPS reference. 50ns alignment accuracy, <=+/-0.1ppm across -40C to +105C.
| Parameter | Specification |
|---|---|
| 1PPS Alignment Accuracy | <=50 ns |
| Frequency Accuracy (locked) | <=0.01 ppm |
| Frequency Stability (unlocked) | <=+/-0.1 ppm / -40C to +105C |
| Holdover | <=1.5 us / 24h |
| Output | 10 MHz + 1PPS |
| Supply Voltage | 3.3V / 5V |
| Operating Temperature | -40C to +105C |
Дисциплинированный генератор синхронизирует высокостабильный OCXO с внешним 1PPS-эталоном (обычно от GNSS/GPS). Когда эталон доступен, OCXO непрерывно корректируется; при потере он переходит в режим удержания, сохраняя точность на основе выученных характеристик старения и температуры.
Holdover is the period when a disciplined oscillator operates without an external 1PPS reference, relying on the OCXO's intrinsic stability. KCCS disciplined OCXOs achieve <=1.5 us/24h holdover accuracy, while the micro version achieves <=5 us/24h.
KCCS 1PPS-disciplined oscillators achieve <=50 ns alignment accuracy between the output 1PPS and the input GNSS 1PPS reference when locked. Frequency accuracy while locked is <=0.01 ppm.
During GNSS outages, the disciplined oscillator enters holdover mode, maintaining timing accuracy based on the OCXO's learned behavior. KCCS units maintain <=1.5 us/24h in holdover. For extended outages, an OCXO with higher stability grade is recommended.
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