Beijing ChipCity Technology Co., Ltd.
Main products:smart card,GPS synchronized clock,RFID
Contact Us
  • Contact Person : Mr. Yang Kevin
  • Company Name : Beijing ChipCity Technology Co., Ltd.
  • Tel : 86-10-62410060-8006
  • Fax : 86-10-62410060-8004
  • Address : Beijing,Beijing,3-1313, Building 16, Chengnan Jiayuan Yichengyuan,City Avenue, Fengtai District
  • Country/Region : China
  • Zip : 100068

CC81231:GPS Synchronized Clock System

CC81231:GPS Synchronized Clock System
Product Detailed
Low phase noise frequency signal output High-precision timing GPS receiver Tame, holding automatically switch to keep

Detailed Product Description

GPS Rubidium Clock System tames rubidium clock to the cesium atomic clock in the GPS satellite clock signal.

CC81231(GPS Rubidium Clock System) tames rubidium clock to the cesium atomic clock in the GPS satellite clock signal, improving the long-term stability and accuracy of the rubidium clock signal. CC81231 offers high-precision cesium clock level’s clock signal and can be widely in communication, radio and television field as substitute for cesium atomic clock.

The 1pps output signal of CC81231 is divided from rubidium oscillator frequency signal, synchronized to the outputs of GPS receiver’s UTC time. Overcoming the transition of GPS receiver’s, CC81231 is the real Repetition of the ‘UTC time base’. When GPS is unavailable or abnormal, the CC81231 is able to intelligently judge, switch to the rubidium clock, offering stable time-frequency base.

CC81231 tames rubidium clock to the cesium atomic clock of the GPS satellite clock signal. The output frequency of CC81231 is almost no drift. Periodic calibration is not needed. Price of CC81231 tame rubidium is far less than the price of cesium clocks. CC81231 is very suitable for SDH digital synchronization network-level node clock 1,2.CC81231 can be widely used in radio and television, cluster communication, the time and frequency synchronization, base frequency signal of radar, and other fields.



Output signal


  4, the output range: 12dBm ± 1dB

  Accuracy: ≤ 1E-12 (after 48 hours of power, GPS lock 24-hour average accuracy)

  Maintain accuracy: ≤ 5 E-12 (GPS off and the temperature changes less than 5 °C, 24 hours, the average accuracy)

  Power Features: Power-four hours: ≤ 1E-11

  Power after 12 hours: ≤ 5E-12

  Degree of stability: <6 E -10/1ms

                               <1 E -10/10ms

                               <6 E -11/100ms

                               <1 E -11/1s

                               <5 E -12/10s

                               <3 E -12/100s

                               <1 E -12 / day (GPS lock)

Phase Noise: ≤ -95dBc/Hz @ 1Hz

                    ≤ -125Bc/Hz @ 10Hz

                    ≤ -130dBc/Hz @ 100Hz

                    ≤ -150dBc/Hz @ 1kHz

                    ≤ -155dBc/Hz ≥ 10kHz

 Distortion: harmonic wave: ≤-50dBc

                  Non-harmonic: ≤-100dBc

 5MHz, 1MHz and 1 Road, target the same 10MHz


 4, BNC, TTL level, 50Ω

 Time synchronization accuracy: better than ± 20ns (GPS lock after 24 hours time difference compared with similar devices)

 Rising: <10ns

 Jitter: <1ns


 TTL level, BNC, 4 Way


      4, RS-422A levels, XS8 three core plug Airlines

      IRIG-B AC code

      4, XS8 three core plug Airlines

Serial interface, GPS status, system information

 GPS raw data interface, 1, DB-9 ,9600-N-8-1

 System Monitoring Interface, 1, DB-9 ,9600-N-8-1

Network Interface

     1 Road, RJ45, provides NTP network time and network monitoring system

CC81231:GPS Synchronized Clock System

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