KCCS
Precision Timing
Ultra-Low Power OCXO Series running from 3.3V. Steady-state current as low as 23mA (KOP12/KOP25/KOP27). KOP20 delivers -155 dBc/Hz @1kHz phase noise.
| Model | Package (mm) | Output | Supply | Temp. Range | Warm-up Power | Steady-State Power | Phase Noise @10MHz | Freq. Range |
|---|---|---|---|---|---|---|---|---|
| KOP20 | DIP 20.2×20×15 | Sine/CMOS | 3.3V | 0~+50℃ | 130 mA @25℃ | 47 mA @25℃ | -155 dBc/Hz @1kHz | 10 MHz |
| KOP12 | DIP 20.2×12.9×9 | Sine/CMOS | 3.3V | -10~+45℃ | 80 mA (20s @25℃) | 23 mA @+25℃ | -138 dBc/Hz @1kHz | 10 MHz |
| KOP25 | DIP 25.4×25.4×12.7 | Sine/CMOS | 3.3V | -10~+45℃ | 80 mA (20s @25℃) | 23 mA @+25℃ | -138 dBc/Hz @1kHz | 10 MHz |
| KOP27 | DIP 36.2×27.2×13.5 | Sine/CMOS | 3.3V | -10~+45℃ | 80 mA (20s @25℃) | 23 mA @+25℃ | -138 dBc/Hz @1kHz | 10 MHz |
An Oven-Controlled Crystal Oscillator (OCXO) maintains a quartz crystal at a constant elevated temperature inside a micro-oven, minimizing frequency drift caused by ambient temperature changes. This delivers stability from 0.01 ppb to 50 ppb, far exceeding TCXO performance.
OCXO uses an oven for temperature control (highest stability, 0.01-50 ppb, highest power). TCXO uses electronic compensation (0.1-5 ppm, low power). VCXO is voltage-tunable for PLL/frequency synthesis (wide pulling range, +/-50 to +/-200 ppm).
KCCS ultra-low phase noise OCXOs achieve -160 to -170 dBc/Hz at 1 kHz offset and -118 to -131 dBc/Hz at 1 Hz offset, with a phase noise floor of -175 dBc/Hz. Frequencies range from 10 to 100 MHz.
Allan deviation measures short-term frequency stability of an oscillator. KCCS ultra-low ADEV OCXOs achieve 1.03E-13 at 1 second and 8E-14 at 10 seconds, critical for atomic clock references, test equipment and high-performance phase-locked loops.
KCCS OCXOs typically achieve rated stability within 3 minutes of power-on. Low-power variants may require up to 5 minutes. Warm-up current is higher than steady-state (e.g., 80mA startup vs 23mA steady for ultra-low power models).
Yes. KCCS offers custom frequencies from 5 MHz to 100 MHz, multiple package sizes (14x9mm DIP, 14x9mm SMD, 9.7x7.5mm SMD, 7.5x5.5mm SMD), and sine output (custom options available). Contact sales for custom specifications.
Our technical team can help you choose the optimal oscillator for your specific application requirements.