ATOM33 CPT atomic clock

Pin definition

Features

Small size and light weight
+5V single power supply, low power consumption
UART serial communication
External second synchronization and 1PPS output

No.	Parameter	Condition / Offset	Specification
1	Output Frequency		10 MHz
2	Output Frequency Accuracy	25 °C	≤ ±5E-11
3	Frequency vs. Temperature Stability	-45 °C to +75 °C	≤ ±5E-10
4	Frequency Stability	τ = 1 s	≤ 5×10⁻¹¹
		τ = 10 s	≤ 1.6×10⁻¹¹
		τ = 100 s	≤ 5×10⁻¹²
5	Steady-State Phase Noise (SSB)	10 Hz offset	≤ -90 dBc/Hz
		100 Hz offset	≤ -120 dBc/Hz
		1 kHz offset	≤ -140 dBc/Hz
		10 kHz offset	≤ -145 dBc/Hz
6	Power Consumption	Start-up, 25 °C	≤ 10 W
6	Power Consumption	Steady-state, 25 °C	≤ 4 W
7	Start-up Characteristics	Lock time @ 25 °C	≤ 6 min
8	Frequency Aging Rate		≤ ±2.5E-11 / day
9	Operating Temperature Range		-45 °C to +75 °C
10	Storage Temperature Range		-55 °C to +100 °C
11	Dimensions (L × W × H)		50.8 mm × 50.8 mm × 17.2 mm
12	Weight		≤ 100 g