Installation dimensions
Main indicators
Pin definition
ATOM45 chip scale atomic clock
Features
Miniaturization
Ultra low power consumption
UART serial communication
Pin compatible with SA.45s form factor
Sine wave output available
External second synchronization and 1PPS output
| Test items | Technical indicators |
| Output frequency | 10MHz |
| Output level | CMOS level,0V~Vcc, output impedance 1MQ |
| Factory frequency accuracy (25℃) | ≤±5.0E-11 |
| Short term stability | ≤3.0E-10/1s |
| ≤1.0E-10/10s | |
| ≤3.0E-11/100s | |
| Phase noise(SSB) | ≤-70dBc/Hz@10Hz |
| ≤-113dBc/Hz@100Hz | |
| ≤-128dBc/Hz @1KHz | |
| ≤-135dBc/Hz@10KHz | |
| Frequency drift | ≤9E-10/month |
| Steady state power consumption(25℃) | 150mW@3.3V |
| Powered by | 3.3V±0.1V |
| Start-up characteristics(25℃) | ≤3minutes lock |
| Frequency adjustment range | ≥±2E-8 |
| 1PPS input | Low level 0V~0.3V,high level2.3V~3.0V, input impedance 1 MΩ |
| 1PPS output | Low level<0.3V, high level>2.7V, high level width 0.1μs~10μs, output impedance 1MΩ |
| External second synchronization accuracy | 1PPS synchronization accuracys±100ns |
| External second taming accuracy | ≤5E-12(24-hour frequency accuracy average after 1 day of taming) |
| Maintain accuracy | ≤5μs(time difference maintained for 24 hours after 1 day of taming) |
| Range of working temperature | -40C~+70℃(+80℃ optional) |
| Frequency temperature characteristics | ≤1E-9(≤5E-10optional) |
| Storage temperature range | -55℃~+85℃ |
| MTBF | >100,000h |
| Package form | 12-pin dual in-line plug |
| Overall dimensions(mm) | 41(±0.5)×35(±0.5)×11.4(±0.2) |
| Weight | ≤35g |
As the leading manufacturer of atomic clocks in China, Semiatom Photonics Co., Ltd. is committed to delivering state-of-the-art timekeeping solutions that meet the highest standards of precision and reliability. Our expertise and dedication to innovation ensure that our products remain at the cutting edge of technology, serving the needs of various high-tech industries worldwide.
Features of CPT Atomic Clock by Semiatom Photonics Co., Ltd.
Ultra-High Precision
Long-Term Stability
Compact and Robust Design
Low Power Consumption
Fast Warm-Up Time
High Reliability and Longevity
Versatile Application Range
Advanced Frequency Control
User-Friendly Interface
Cutting-Edge Technology
Steady-state power consumption(25℃):
150mW@3.3V
Short-term stability:
≤3.0E-10/1s ≤1.0E-10/10s ≤3.0E-11/100s
Steady-state power consumption(25℃):
≤3W@+5V
Short-term stability:
≤1.0E-10/1s ≤3.0E-11/10s ≤1.0E-11/100
Steady-state power consumption(25℃):
≤6W @5V, max current 3.6A
Short-term stability:
≤5.0E-11/1s ≤1.8E-11/10s ≤7.0E-12/100s ≤3.0E-12/1000s