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 |
A disciplined oscillator locks a high-stability OCXO to an external 1PPS reference (typically from GNSS/GPS). When the reference is available, the OCXO is continuously corrected; when lost, it enters holdover mode, maintaining accuracy based on its learned aging and temperature characteristics.
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.
Our technical team can help you choose the optimal oscillator for your specific application requirements.