ATOM31H Rubidium Atomic Clock

Miniature rubidium atomic clock

Main indicators

Features:

  • +5V low voltage power supply

  • UART serial communication

  • Compatible with SA.3x series pinout

Test itemTechnical indicators
Output frequency10MHz
Output level3.3 VTTL levels
Factory frequency accuracy (25°C)≤±5.0E-11
Short-term stability≤5.0E-11/1s
≤1.8E-11/10s
≤7.0E-12/100s
≤3.0E-12/1000s
Phase noise (SSB)≤-95dBc/Hz @10Hz
≤-125dBc/Hz @100Hz
≤-135dBc/Hz @1KHz
≤-140dBc/Hz @10KHz
Frequency Temperature Characteristics-5℃～+60℃≤8E-10<
+20℃～+40℃≤2E-10
Frequency drift≤5E-12/day
Steady state power consumption (25°C)≤6W @5V, max current 3.6A
Electricity supply+5V±0.1V
Start-up characteristics≤7 minutes lockout (ambient temperature)
≤15 minutes lockout (-5°C ambient)
Reproducibility≤2E-11
Frequency Adjustment Range≥±1.5E-9 (0V~5V) External level adjustment
Storage temperature range-55℃～+85℃
Overall Dimension(mm)50.8(±0.5)×50.8(±0.5)×25(±0.5)
Weights≤0.2kg
Environmental requirementRoHS6 compliant

Mounting Dimensions

Miniature rubidium atomic clock

Pin Definitions

Pin numberFunction NameDescriptions
1Frequency adjustmentFor use in frequency adjustment, input 0V to 5V
2Lock indication0V locked, 3V unlocked
310MHz output10MHz Output
4GNDPower Ground, Signal Ground
5+5VinPower terminal positive
6RXDRXD terminal for LvTTL signal protocol communication
7TXDTXD terminal for LvTTL signal protocol communication

As China's premier atomic clock manufacturer, Semiatom Photonics Co., Ltd. is committed to delivering cutting-edge timekeeping solutions with exceptional quality and precision. Our dedication to innovation and excellence has established us as a leader in the industry, trusted by clients worldwide for their critical timing needs.

Features of CPT Atomic Clock by Semiatom Photonics Co., Ltd.

  • High Precision and Stability

  • Compact and Lightweight Design

  • Low Power Consumption

  • Long-Term Reliability

  • Fast Warm-Up Time

  • Wide Temperature Range

  • High Vibration and Shock Resistance

  • User-Friendly Interface

  • Customizable Options

  • Extensive Application Range

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