AR50LC ABRACON | Alldatasheet
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MINIATURE ATOMIC CLOCK, RUBIDIUM OSCILLATOR Revision: Initial Release Initial Release 3/28/2024 Page 1 Disclaimer Check Inventory S Request Samples
Description
Parameters Min. Typ. Max. Units Notes Frequency Output 10 MHz Supply Voltage (Vdd) [Note 2] 12 12.5 to 15 +18 Vdc Option A 4.9 5.0 +5.1 Vdc Option B Input Power (warm-up) 18 W Input Power (steady-state) 6 W Warm-up time to ±0.5ppb accuracy 8 minutes Operating Temperature Range -20 +65 °C See options Storage Temperature Range -40 +90 °C Initial Frequency Tolerance at time of shipment ±0. 05 ppb @+25°C Frequency Stability over Operating Temperature Range (in still air) ±0. 2 ±0.3 ppb See options Aging per day 5E-12 After 30 days Aging per month 5E-11 After 30 days Aging per year 5E-10 After 30 days Warm-up time to lock 6 minutes Retrace ±0.03 ppb after 1 hour of continuous operation Output Waveform Sinewave Output Power +8 +10 +12 dBm Output Load 50 Ω Spectral Purity, Spurious -70 dBc 100kHz BW Spectral Purity, Harmonics -30 dBc Output Waveform CMOS Output Logic High (VOH) 2.97 Vdc Output Logic Low (VOL) 0.33 Vdc Duty Cycle 40 50 60 % Rise/Fall time 10 nS Output Load 15 pF Abracon’s AR50LC embedded Rubidium Oscillator offers the latest technology that provides exceptional performance including excellent accuracy, short term stability and frequency stability. The Abracon AR50LC is available with either a sinewave or CMOS output and with a supply voltage of +5Vdc or +12Vdc, with extended range up to +18Vdc. Additional features of this series include lock monitor output and voltage control function to support a wide range of applications. Output Frequency 10MHz Low phase noise high precision atomic clock Excellent short-term stability Operating Supply Voltage: +5Vdc, +12Vdc Ultra-tight frequency tolerance ±0.05 ppb Temp stability available to 0.3ppb (-20°C to +65°C) Sinewave or CMOS Output REACH/RoHS II Compliant | MSL N/A ESD Sensitive Features Typical Applications Electrical Specifications [Note 1] Satellite Timing and Frequency Oil and Gas Exploration GPS Receiver Telecommunication Infrastructure 4G/LTE/CDMA/EMTS Test and Measurement Underwater Sensor Systems Mining and Seismic Research Note 1: All measurements guaranteed at +25°C unless otherwise specified. Note 2: The +12Vdc version can be powered up with any VDD value in the range of +12Vdc to +18Vdc. Note 3: The application should maintain thermal stability to obtain optimum performance. The use of a heat sink or copper plate under the device should be avoided. Device mounting should allow for a minimum of 1mm clearance from the printed circuit board.
MINIATURE ATOMIC CLOCK, RUBIDIUM OSCILLATOR Revision: Initial Release Initial Release 3/28/2024 Page 2 Disclaimer Check Inventory S Request Samples 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 [Note 1]
MINIATURE ATOMIC CLOCK, RUBIDIUM OSCILLATOR Revision: Initial Release Initial Release 3/28/2024 Page 3 Disclaimer Check Inventory S Request Samples AR50LC- MHz- Output S: Sinewave (*) C: HCMOS (**) (*) only available @ Option A= Vdd=12Vdc (**) only available @ Option B=Vdd=5Vdc Frequency Stability A: ±0.3ppb over -20°C ~ +65°C B: ±0.5ppb over -30°C ~ +65°C C: ±0.5ppb over -20°C ~ +70°C D: ±0.5ppb over -30°C ~ +70°C Vdd A: 12Vdc B: 5Vdc Frequency in MHz Please specify the frequency in MHz. e.g. 10.000MHz Part Identification
MINIATURE ATOMIC CLOCK, RUBIDIUM OSCILLATOR Revision: Initial Release Initial Release 3/28/2024 Page 4 Disclaimer Check Inventory S Request Samples Dimensions: inches [mm] Pin # Function