LP-110 GPS/BDS Clock ModuleTime synchronization module

Product description

The LP-110 GPS Beidou dual-mode constant temperature crystal oscillator synchronous clock module is a highly integrated GPS/Beidou dual-mode taming constant temperature crystal oscillator time synchronization server synchronous clock module. The module integrates a Russian imported double slot constant temperature crystal oscillator OCXO and a high-precision timing GPS/Beidou dual-mode OEM board. It uses a large-scale high-speed FPGA integrated circuit as the main processing chip, with an internal processing clock frequency of 320MHz, and high-speed AD, DA chips and high-precision time-frequency control algorithms based on phase-locked loops to generate and send accurate and stable time and frequency signals (10MHz, 1PPS, TOD).

The daily average accuracy of frequency output is less than 1E-12, the real-time accuracy can reach 2E-10, and the punctuality accuracy is better than 1us/hour. Easy to integrate into transmitters, various instruments, DVB, DAB, CMMB, DTMB, Wimax, CDMA and other systems that require strict time-frequency requirements, providing high-precision time and frequency reference signals for the system.

The T200 GPS Beidou dual-mode constant temperature crystal oscillator synchronous clock module integrates signals from multiple satellite navigation systems, and can also be equipped with multiple GPS/Beidou dual-mode positioning or timing modules from different manufacturers (up to three); Adopting a reasonable fusion algorithm to achieve better time and frequency performance than a single system or positioning module. Using multiple same frequency and phase shifted frequency signals to train the crystal oscillator and improve the control accuracy of the crystal oscillator. Provide good timing and frequency signals, generate recursive second pulses (1pps) and time signals when satellite signals cannot be received normally, to adapt to situations where signals are lost in a short period of time. Provide multiple time release interfaces to meet various external application interfaces.

Frequency modulation and phase modulation combined with 1pps generation technology:
The 1pps time information is the fusion value of the 1pps signal obtained from the 10MHz signal output by the GPS taming crystal oscillator after 10000000 frequency divisions and the 1pps generated by the GPS/Beidou module, which makes the final 1pps have good short-term and long-term stability characteristics. The frequency control is carried out using a combination of frequency modulation and phase modulation technology to ensure frequency accuracy while ensuring consistency between frequency phase and 1pps phase. This characteristic is particularly suitable for demanding fields such as digital video broadcasting and CDMA.
technical indicators
output signal

• 10MHz

• 3 channels, SMA interface, sine wave, 3.3V, TTL level, 50 Ω

• Frequency accuracy:<1E-12 (GPS or Beidou second-generation lock, 24-hour average)

• Maintain accuracy:<2E-10 (both GPS and Beidou II are disconnected, maintain within 24 hours)

• Stability: 1s<2E-12

Phase noise:

• 1 Hz -100 dBc/Hz

• 10 Hz -125 dBc/Hz

• 100 Hz -140 dBc/Hz

• 1 kHz -145 dBc/Hz

• 10 kHz -150 dBc/Hz

1PPS

• 3 channels, SMA interface, 3.3V, TTL level, 50 Ω;

• Timing accuracy: 15ns (RMS) GPS or Beidou second-generation locking;

• Rising edge time<8ns;

• Duty cycle: 1:100 (can be specified);

TOD signal

• 1 channel, TTL level, NMEA-0183 compatible with Beidou protocol format and content, ， 9600-N-8-1

Important features

• Built in imported high-performance dual slot constant temperature crystal oscillator

• Using GPS Beidou to automatically calibrate crystal oscillator frequency

• Flexible selection of multiple GNSS receivers

• Daily average accuracy<1E-12

• GPS Beidou lost automatically switches to punctuality mode

• Frequency modulation and modulation combined frequency and 1pps generation technology

• Communication Internet of Things

• Digital TV/Broadcasting Network

• 3G/4G/LTE

• aerospace

• National Defense and Military Industry

• Electric power communication

• Simultaneously possessing excellent long-term stability and short-term stability

• GPS Beidou receiver

• 64 parallel channel GPS L1, BDS B1 OEM board

• Motorola m12mt+series GPS module; (Optional)

• Receive GPS L1, BDS B1, time accuracy 20ns (RMS)

• DOCXO

• Annual aging rate 5E-8~1 E-8, optional

 

Physical and environmental parameters:

• Size: 146X 102 X 40 mm

• Weight: 500g

• Power supply: 15-22V DC

• Working temperature: -10 ℃~+50 ℃

• Storage temperature: -25 ℃~+85 ℃

• Humidity: 95% without condensation

• Power consumption: startup<20W, operation<8W

• Complies with the provisions on electromagnetic compatibility in section 3.9.1 of GJB2242-94 General Specification for Time Statistics Equipment

 

Standard configuration:

• 1 dual-mode clock module

• 30 CM SMA-BNC large wall adapter cable 1 set

• 30 meter BNC connector GPS Beidou antenna and bracket 1 piece

 

option

• Supports multiple RS485, RS422, 1PPS, 1PPM, 1PPH, IRIG-B AC, IRIG-B DC code outputs.