L9000 Clock ModuleTame crystal oscillator module

Overview

The L9000 Disciplined Crystal Oscillator Module consists of a timing-type GPS Beidou satellite module, a logic processing unit, and a high-precision disciplined crystal oscillator. The satellite module is used to receive satellite time and high-precision 1PPS signals, while the disciplined crystal oscillator is used to handle the phase and frequency synchronization of 1PPS and 10MHz sine waves. This device employs a 1PPS phase-locked technology that combines frequency modulation and phase modulation: the 1PPS time information is obtained by fusing the 1PPS signal generated by the disciplined crystal oscillator after 10,000,000 frequency divisions with the 1PPS signal generated by the GPS module, resulting in the final generation of 1PPS and 10MHz sine waves with excellent short-term and long-term stability characteristics. The technology combining frequency modulation and phase modulation is used for frequency control, ensuring both frequency accuracy and consistency between the frequency phase and the 1PPS phase. In the event of abnormal satellite signal reception or short-term satellite loss of lock, the disciplined crystal oscillator can still provide 10MHz sine waves and 1PPS signals. This module boasts ultra-low phase noise and excellent autonomous timekeeping capabilities, and is widely used in aerospace, communication systems, radio navigation/monitoring, power, transportation, industrial automation, vehicular, airborne, shipborne, and other platforms with complex and harsh operating conditions, providing high-precision time and frequency reference signals for the system.

Function: Cat Description

• Performance: Serial port RS232; N81

• 1PPS rising edge: <10ns; level: TTL

• Receiver: Professional timing satellite receiver

• Satellite acquisition time ≤ 2 minutes

• LED status light: The locked LED signal is at low level, while the unlocked signal is at high level

• 10MHz standard frequency output, standard sine wave

External interface of module

• 1) Power input interface 1 channel: XH2.54 connector

• 2) 1PPS output interface 1 channel: SMA

• 3) 10MHz output interface, 1 channel: SMA

• 4) Antenna input interface 1 channel: SMA

• 5) RS232 serial port 1 channel: XH2.54 connector

• 6) Status indicator light 1 channel: XH2.54 connector

physical properties

• Electrical Input Voltage: DC 12V

• Power consumption: Total power consumption of a single module: <10W

• Environment Operating temperature -40℃~+80℃

• Storage temperature: -40℃~+80℃

• Damp and hot environment, 95% without condensation

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