Miniature Rubidium Atomic Clock CT31

CT31 is a miniature rubidium atomic clock, which uses the "0-0" superfine energy level transition frequency signal of rubidium atoms to lock the voltage-controlled quartz crystal oscillator, and outputs an accurate and stable 10MHz standard frequency signal. The overall appearance of CT31 rubidium clock is compatible with high-stable OCXO, can work in time-frequency boards and modules, also it has RS232 frequency calibration interface and external ESC interface.

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Product Advantages

Features

Dimension: 50mm×50mm×25mm

Micro quantum physics system with independent intellectual property rights

Low Power Consumption (≤6W, steady)

Compatible with OCXO voltage controlled external voltage frequency adjustment

Technical Specifications

Output 10MHz Feature
Item		Parameter
Output Frequency		10MHz
Wave		Square Wave
Voltage Level		3.3V
Single-BandPhase Noise	10Hz	≤-95dBc/Hz
	100Hz	≤-125dBc/Hz
	1kHz	≤-135dBc/Hz
	10kHz	≤-145dBc/Hz
Frequency Feature
Item		Technical Parameter
Relative Error（Initial）		≤±5.0E-11
Stability(Allan Variance)	δy(1s)	≤5.0E-11
	δy(10s)	≤1.8E-11
	δy(100s)	≤7.0E-12
	δy(1000s)	≤3.0E-12
Drift (Power-on 24h)		≤5.0E-12/d
Repeatability (2h-on,24h-off,2h-on)		≤2.0E-11
Temperature Feature	-5℃~+60℃	≤8.0E-10
Temperature Feature	+20℃~+40℃	≤2.0E-10
Power-on Feature	Lock Time (Normal Temperature)	≤7 mins
Power-on Feature	Lock Time (-5℃)	≤15 mins
Geomagnetic effect		≤2.0E-11
Frequency Adjustment(＞10K)	Range	≥±1.0E-9
Frequency Adjustment(Software)	Range	≥±1.0E-9
Frequency Adjustment(Software)	Resolution	≤1.0E-12

Power and Consumption
Item		Technical Parameter
Voltage		+5Vdc±0.1Vdc
Startup Consumption		≤20W
Steady Consumption		≤6W
Status Indication
Item		Technical Parameter
Lock Indication	Lock	0V～0.4V
	Unlock	2.2V～3.4V
Mechanical Feature
Item		Technical Parameter
Weight		≤200g
Ambient Environment
Item		Technical Parameter
Working Temperature		-5℃～+60℃
Storage Temperature		-55℃～+85℃
Magnetic Field		≤2Gauss
Reliability
MTBF		≥100000h