KCCS
Precision Timing
Ultra-low power chip-scale atomic clock. 130 mW power, SA.45s pin-compatible, multi-frequency output (10/16.384/20/24.576 MHz).
| Parameter | Specification |
|---|---|
| Power Consumption | 130 mW (standard) / 150 mW (multi-freq) |
| Output Frequencies | 10 MHz; or 10/16.384/20/24.576 MHz (multi-freq) |
| Allan Deviation (1s) | <3E-11 |
| Aging | <3E-10 / month |
| Warm-up Time | <3 min |
| Package | SA.45s pin-compatible DIP |
| Supply Voltage | 3.3V |
| Interface | I2C / UART |
A chip-scale atomic clock (CSAC) is a miniature atomic frequency standard that uses coherent population trapping (CPT) in a vapor cell to stabilize an oscillator. KCCS CSACs consume only 130 mW, making them suitable for battery-powered and portable applications where rubidium standards are too power-hungry.
CSAC offers better long-term stability than OCXO (ADEV <3E-11 at 1s vs <1E-12 for premium OCXO) but lower than rubidium (<1E-11). CSAC is much smaller and lower power (130 mW) than rubidium (<5 W), filling the gap between high-end OCXO and full-size atomic standards.
Yes. KCCS CSAC uses the SA.45s pin-compatible DIP package, allowing direct drop-in replacement. The multi-frequency version outputs 10, 16.384, 20 and 24.576 MHz simultaneously at 150 mW, with I2C/UART digital interface.
KCCS chip-scale atomic clocks achieve rated stability within <3 minutes of power-on. This is comparable to high-end OCXOs and much faster than traditional rubidium standards (which typically require 5-10 minutes).
Our technical team can help you choose the optimal oscillator for your specific application requirements.