Achieving industry-leading phase noise performance for the most demanding timing applications
Phase noise is the single most important specification for high-performance oscillators. It measures how much the oscillator's output signal "spreads" around the carrier frequency — in other words, how clean the timing signal is.
In modern communication systems and high-precision test equipment, poor phase noise leads to:
Our flagship ultra-low phase noise OCXO series delivers best-in-class performance:
| Parameter | Specification | Notes |
|---|---|---|
| Output Frequency | 5 MHz | Other frequencies available on request |
| Phase Noise @ 1 Hz offset | -131 dBc/Hz | Close-in phase noise |
| Phase Noise @ 10 Hz offset | -151 dBc/Hz | |
| Phase Noise @ 100 Hz offset | -155 dBc/Hz | |
| Phase Noise @ 1 kHz offset | -161 to -170 dBc/Hz | Industry-leading performance |
| Phase Noise @ 10 kHz offset | -161 dBc/Hz | |
| Phase Noise @ 100 kHz offset | -162 dBc/Hz | |
| Phase Noise @ 1 MHz offset | -188 dBc/Hz | Noise floor |
| Allan Deviation (ADEV) | 8E-14 @ 10s | Short-term stability |
| Temperature Stability | ±0.05 ppb | -20°C to +60°C |
| Package | 50 × 50 mm | Hermetic SMD |
Achieving -170dBc/Hz at 1kHz offset is at the very top of the oscillator performance ladder. To put this in perspective:
Typical OCXO: -140 to -150 dBc/Hz @ 1kHz
High-performance OCXO: -155 to -160 dBc/Hz @ 1kHz
KCCS Ultra-Low Phase Noise OCXO: -161 to -170 dBc/Hz @ 1kHz
Rubidium Atomic Clock: ~-165 dBc/Hz @ 1kHz
This means our OCXO delivers phase noise performance comparable to rubidium atomic clocks — but in a smaller package, at a fraction of the cost, and with much lower power consumption.
5G massive MIMO systems require extremely clean local oscillators to support wide bandwidths and high-order modulation. The ultra-low phase noise of our OCXO directly translates to:
Spectrum analyzers, signal generators, and phase noise test sets depend on reference oscillators with exceptional spectral purity. Our OCXO enables:
Ultra-high-speed data converters (12-bit and above) require low-jitter clocks to achieve their full SNR and dynamic range. The 8E-14/10s Allan deviation ensures minimal clock jitter.
Radar systems, electronic warfare, and secure communications demand the highest timing performance. Our OCXO is proven in demanding defense environments.
| Technology | Phase Noise @ 1kHz | Size | Power | Cost |
|---|---|---|---|---|
| TCXO | -130 to -140 dBc/Hz | Small | Low | Low |
| Standard OCXO | -145 to -155 dBc/Hz | Medium | Medium | Medium |
| KCCS Ultra-Low PN OCXO | -161 to -170 dBc/Hz | 50×50mm | Medium | Premium |
| Rubidium Atomic Clock | ~-165 dBc/Hz | Large | High | Very High |
KCCS' ultra-low phase noise OCXO series represents the state of the art in oscillator technology. Achieving -170dBc/Hz at 1kHz offset — combined with 8E-14/10s Allan deviation — delivers timing performance comparable to rubidium atomic clocks, but in a compact SMD package at a fraction of the cost.
Whether you're designing 5G base stations, high-speed data acquisition systems, or precision test equipment, our ultra-low phase noise OCXO provides the clean timing foundation your design demands.
Contact our engineering team for detailed specifications, evaluation samples, or custom frequency options.
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