AR50LC series

MINIATURE ATOMIC CLOCK, RUBIDIUM OSCILLATOR

Revision: Initial Release

Initial Release 3/28/2024

Page 2

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Parameters

Min.

Typ.

Max.

Units

Notes

Electrical Frequency Adjustment

Control Voltage

0

5

Vdc

Frequency Pull Range

±4.0

ppb

Option A=Vdd=12Vdc

±2.0

ppb

Option B=Vdd=5Vdc

Frequency Pull Slope

Positive

Control Voltage Port Impedance

10

kΩ

Lock Monitor

Warm-up time to lock

6

minutes

Lock Monitor Output Logic High

4.0

Vdc

Unlocked

Lock Monitor Output Logic Low

0.5

Vdc

Locked

Phase Noise

SSB Phase Noise

(Output Waveform= Sinewave)

-95

dBc/Hz

@10Hz offset

-126

dBc/Hz

@100Hz offset

-135

dBc/Hz

@1kHz offset

-145

dBc/Hz

@10kHz offset

-145

dBc/Hz

@100kHz offset

SSB Phase Noise

(Output Waveform= CMOS)

-95

dBc/Hz

@10Hz offset

-125

dBc/Hz

@100Hz offset

-135

dBc/Hz

@1kHz offset

-140

dBc/Hz

@10kHz offset

-140

dBc/Hz

@100kHz offset

Allan Deviation

Allan Deviation

(Output Waveform= Sinewave)

2E-11

5E-11

ԏ=1s

8E-12

2E-11

ԏ=10s

3E-12

7E-11

ԏ=100s

Allan Deviation

(Output Waveform= CMOS)

3E-11

5E-11

ԏ=1s

9E-12

2E-11

ԏ=10s

5E-12

7E-11

ԏ=100s

Parameters

Description

Mechanical Shock

IEC 60068-2-27, Test Ea: Acceleration of 50G peak amplitude for 11ms duration

Vibration

IEC 60068-2-06, Test Fc: 10Hz-55Hz 1.5mm displacement, 55Hz-500Hz 10G

EMI

Compliant to FCC Part 15, Class B

Relative humidity

94% non-condensing

Magnetic Field sensitivity

2x10-12 Gauss

Atmospheric pressure

-60m to 4000m 1x10-13 Per mbar

Approximate MTBF

100,000 Hours, Stationary

Weight

< 200 grams

Environmental and Mechanical

Electrical Specifications continued[Note1]