AR36CPT ABRACON | Alldatasheet
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Coherent Population Trap (CPT) Atomic Clock, Rubidium Oscillator Revision: Initial Release Released 3/20/2025 Page 1 Disclaimer lign Check Inventory Request Samples lign Request Samples
Description
Parameters Min. Typ. Max. Units Notes RF Output (Pin 12) Output Frequency 10 MHz High-level Output Voltage (VOH) 2.4 V Low-level Output Voltage (VOL) 0.4 V Output Signal CMOS Output Load 15 pF Rise and Fall Time (Tr, Tf) 6 ns 10% to 90% of waveform Duty Cycle 45 55 % 50% of waveform Supply Voltage (Pin 7) Supply Voltage 3.2 3.3 3.4 Vdc Power Consumption, Warm Up 5.2 W Power Consumption, Steady-State 1.6 W Warm up Time 5 minutes
1 PPS Input (Pin 9)
High-level Input Voltage (VIH) 2.4 V Low-level Input Voltage (VIL) 0.4 V Pulse Width 1 ms Rise/Fall Time 10 ns Input Sync ±50 ns
1 PPS Output (Pin 10)
1PPS Output Frequency 1 Hz Output Logic CMOS High-level Output Voltage (VOH) 2.4 V Low-level Output Voltage (VOL) 0.4 V Pulse Width 1 ms Rise/Fall Time 10 ns Abracon’s AR36CPT low phase noise Atomic Clock Oscillator offers the latest Coherent Population Trap (CPT) technology, enabling exceptional performance including tight frequency accuracy, low short -term stability, and reduced power consumption. The Abracon AR36CPT is available in a miniature 45mm x 36mm x 14.5mm package with a CMOS 1PPS and 10MHz output and an input supply voltage of +3.3Vdc. This clock oscillator accepts a 1PPS (pulse per second) input signal that contains extremely accurate time information. The module locks its 10MHz output to the 1PPS input clock, providing a highly accurate 10MHz frequency reference. Control of the module parameters is performed via UART communications interface. ▪ CMOS output frequency 10MHz and 1PPS ▪ Ultra-tight frequency accuracy ≤5.0E-11 ▪ Low phase noise high precision atomic clock ▪ Operating supply voltage +3.3Vdc ▪ Low power consumption <1.6W ▪ Voltage control input feature with ±100 ppb range ▪ Control functions via UART communication ▪ Tight frequency stability ±0.5 ppb typical ▪ Extended operating temperature range -40 to +70°C Features Typical Applications ▪ Satellite Timing and Frequency Communications ▪ Oil, Gas and Underwater Systems ▪ Test and Measurement Instrumentation ▪ Navigation Systems ▪ Telecommunication Infrastructure ▪ Reference for DTV, DAB, VHF, UHF& PMR TX, CMDA, UTMS, LTE, Tetra and IPTV Note 1: All measurements guaranteed at nominal Vdd and at +25°C unless otherwise specified. Electrical Specifications [Note 1]
Coherent Population Trap (CPT) Atomic Clock, Rubidium Oscillator Revision: Initial Release Released 3/20/2025 Page 2 Disclaimer lign Check Inventory Request Samples lign Request Samples Parameters Min. Typ. Max. Units Notes Frequency Stability (Pin 12) Operating Temperature Range -40 70 °C Storage Temperature Range -55 85 °C Non-operating Initial Frequency Tolerance at time of shipment -5.0E-11 +5.0E-11 @+25°C Frequency Stability -1E-9 ±5E-10 +1E-9 -40°C to +70°C Allan Deviation 2.0E-10 ԏ=1s 7.0E-11 ԏ=10s 2.0E-11 ԏ=100s 7.0E-11 ԏ=1000s Aging per day 4.1E-12 5.0E-12 @+25°C, after 30 days SSB Phase Noise -90 dBc/Hz @10Hz offset -120 dBc/Hz @100Hz offset -140 dBc/Hz @1kHz offset -150 dBc/Hz @10kHz offset Retrace 5.0E-11 Lock Indication Output (Pin 4) High-level Output Voltage (VOH) 2.4 V Alarm Low-level Output Voltage (VOL) 0.4 V Normal Operation Digital Tuning Output (Pin 12) Digital Tuning, Range 100 ppb Digital Tuning, Resolution 1.0E-12 Remote System Interface and Input Control (Pins 5 and 6) Protocol UART LVTTL High-level Input Voltage (VIH) 2.4 V Low-level Input Voltage (VIL) 0.4 V Baud Rate 57600 Number of Data Bits 8 Number of Stop Bits 1 Parity None Electrical Specifications continued [Note 1] Note 1: All measurements guaranteed at nominal Vdd and at +25°C unless otherwise specified.
Coherent Population Trap (CPT) Atomic Clock, Rubidium Oscillator Revision: Initial Release Released 3/20/2025 Page 3 Disclaimer lign Check Inventory Request Samples lign Request Samples AR36CPT- MHz- Parameters Description Humidity 75% (Non Condensing) MSL N/A REACH/RoHS II Compliant, No Exemptions Weight <45g Typical Output C: HCMOS Vdd C: 3.3Vdc Frequency Stability A: ±1 ppb over -40°C~+70°C Frequency in MHz Please specify the frequency in MHz. e.g. 10.000 Part Identification Environmental Parameters
Coherent Population Trap (CPT) Atomic Clock, Rubidium Oscillator Revision: Initial Release Released 3/20/2025 Page 4 Disclaimer lign Check Inventory Request Samples lign Request Samples Dimensions: inches [mm] Pin # Function