KCCS
Precision Timing
Ultra-low phase noise OCXO, disciplined oscillators and chip-scale atomic clocks engineered for launch vibration, thermal vacuum and years of on-orbit operation.
Low-Earth-Orbit (LEO) constellations, navigation satellite payloads, and hosted-payload spacecraft run RF transceivers, GNSS receivers, inter-satellite links (ISL), and onboard data handling on a single tight timing budget. A few nanoseconds of drift degrades ranging accuracy, compromises phased-array beam pointing, and can push a burst modem out of its demodulator window. Unlike ground equipment, a satellite cannot be recalled for a timing fix — the oscillator has to survive launch vibration, thermal vacuum, and years of radiation-exposed operation on a fixed power budget.
Prime contractors and payload integrators have traditionally specified oven-controlled crystal oscillators (OCXOs) from Oscilloquartz (now Microchip), Rakon, Vector Frequency Systems and FeiZhou. KCCS has engineered the KOS / KON / KOT and KDO families to meet the same payload-level requirements at a competitive total cost of ownership, with open pin-out compatibility to common DIP and SMD footprints.
| Model Family | Best For | Phase Noise @1 kHz | ADEV | Temp Stability | Package |
|---|---|---|---|---|---|
| KONS450 / KONS350 | Ultra-stable payload reference, ground-station master clock | -160 dBc/Hz | 8E-14 @10s | ±0.01 ppb | DIP 45×45 |
| KONA50 / KONB27 | Downlink/TX synthesizer, low phase noise priority | -170 dBc/Hz | 1.5E-13 @1s | ±0.5 ppb | DIP 50.8 / 27×27 |
| KOT22 / KOMT22 | Wide temp range, vibration-exposed payload | -155 dBc/Hz | 2E-13 @1s | ±0.01 ppb | SMD 22×15 |
| KOR15 / KOR25 | Launch vibration & moving platforms | -150 dBc/Hz | 3E-13 @1s | ±1 ppb, G-sens ≤0.05 ppb/g | DIP 25.4 |
| KDO65 / KDO27 | 1PPS-disciplined on-board reference, GNSS holdover | -155 dBc/Hz | Holdover ±1.5 μs/24h | ±1 ppb | DIP 65 / 27 |
| KCSA35 (CSAC) | Power-critical battery-backed payload, no OCXO warm-up budget | ~-130 dBc/Hz | ≤3E-11/100s | ≤1E-10 | SMD 41×35, 130 mW |
Integrators often ask whether a Chinese oscillator can drop into an Oscilloquartz OCXO or a Rakon TCXO slot. In phase noise and ADEV, our KOS and KON families match the published datasheet curves of comparable Microchip / Oscilloquartz models; in holdover, the KDO disciplined oscillator line tracks Rakon's GNSS-disciplined modules within measurement uncertainty. Where KCCS is genuinely different is commercial: 6–10 week lead time on standard models, 8–16 weeks for custom frequencies, and engineering support in English, Russian and Mandarin directly with the design team rather than through a regional distributor. We can provide a pin-compatible cross-reference report against your incumbent part number on request.