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GS5002 GPSDO Module
Products Introduction
The GS5002 series high-precision phase-locked PLL reference clock module is a highly integrated solution designed to provide high-precision time and frequency references. It accepts BeiDou-2/GPS satellite navigation signals or external 1PPS and serial time information as reference sources to discipline the onboard voltage-controlled OCXO (Oven-Controlled Crystal Oscillator). As a result, it outputs a 10MHz signal, a 1PPS pulse signal, and serial time information synchronized with the reference source.
In the event of satellite signal loss, the module's high-stability OCXO maintains high-precision holdover capability, continuing to deliver accurate time and frequency signals locally. A key advantage of this product is its integrated, modular, plug-and-play design, allowing users to easily expand functionality based on the signal types provided by the clock module.
Application areas
Products requiring integrated 1PPS+TOD time information;
Products requiring integrated IRIG-B code time information;
Time synchronization for base stations, control stations, monitoring stations, etc.
Features
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The module size is miniaturized, making it easy for users to integrate;
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Supports direct access to BeiDou-2/GPS satellite navigation signals;
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Supports external 1PPS+serial port time information access;
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Built-in high-stability GPS disciplined oscillator module as local clock source;
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It has an autonomous timekeeping function. When the external reference is lost, the module automatically switches to timekeeping mode and can continuously output various frequency standard and time standard signals.
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It can output a 10MHz frequency standard signal, functioning as a 10MHz GPSDO;
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It outputs 1PPS+TOD time information and provides 1PPS+TOD time synchronization function to external users, with high time synchronization accuracy;
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Optional B-code output function can be configured to enable small-scale B-code time synchronization;
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Wide operating temperature range (-40℃～+70℃).
Technical Indicators
|
Item |
Input/Output |
Indicator Item |
Index |
|
1 |
Input signal |
BeiDou/GPS signals |
Number of channels/physical interfaces: 1 channel/MCX; Receiving frequencies: BD B1, GPS L1; Interface identifier: J1 ANT. |
|
1PPS + TOD time input |
1PPS second signal input: Number of channels/physical interfaces: 1 channel/6-pin header, pin pitch 2.54 mm; Input level: LVTTL; Pulse width: ≥ 1ms Serial port time information input: Number of channels/physical interfaces: 1 channel/ 6-pin header, pin pitch 2.54 mm; Input level: LVTTL level or RS232 level; Information format: RMC statement |
||
|
2 |
Output signal |
1PPS second signal output (LVTTL level) |
Number of channels/physical interfaces: 1 channel/J8, MCX; Output level: LVTTL; Output pulse width: Default 1ms±200ns, customizable; Rising edge: ≤5 ns; Synchronization accuracy: ≤20 ns (RMS, guaranteed when external input is 1PPS second or receiver input accuracy is 20ns); 24-hour performance retention: ≤50 μs (when disconnected for 24 hours after normal training from the external reference, and the ambient temperature change of the module does not exceed 1℃). |
|
10MHz frequency standard output |
Number of channels/physical interfaces: 1 channel/MMCX; Output waveform: sine wave or square wave; (choose one) Output level: Sine wave 7dBm ± 1dBm; Square wave LVTTL; Frequency accuracy: ≤5E-11 (average after 24 hours of external reference taming and locking). |
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|
Serial port time output |
Number of channels/physical interfaces: 1 channel/ 3-pin header, 2.54mm pitch; Output level: RS232 level; Baud rate: 19200bps. |
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|
3 |
Functional options |
B (DC) code output |
Number of channels/physical interfaces: 1 channel/ 3-pin header, pin pitch 2.54mm; Output level: RS422 level; Output standard: Compliant with GB standard, default UTC time. |
Physical and Environmental Parameters
|
Dimensions: Portable and miniaturized design 60mm×60mm×25mm (width×depth×height, tolerance ±0.5mm) |
Weight: ≤ 0.5 kg |
|
Operating voltage: DC12V±5%, ripple: ≤5% |
Power consumption: ≤12W (@25℃ startup); ≤ 8W (stable operation at 25℃) |
|
Operating temperature: -40℃ to +70℃ |
Storage temperature: -55℃～+ 85℃ |
Package List
|
Item |
Name |
Quantity |
Remark |
|
1 |
Main unit |
1 |
|
|
2 |
2-core power cord (25cm) |
1 |
|
|
3 |
3-core serial cable (25cm) |
1 |
|
|
4 |
Antenna input adapter cable (25cm) |
1 |
One end is an MCX, the other end is a TNC |
|
5 |
1PPS adapter output cable (25cm) |
1 |
MCX-JW3/MCX-JW3-250 |
|
6 |
10MHz signal output cable (25cm) |
1 |
MMCX-JW3/MCX-JW3-250 |
|
7 |
Beidou/ GPS Dual-Frequency Mushroom Antenna |
1 |
Standard configuration includes 30 meters, with mushroom-shaped head, feeder cable and bracket. |
Module external installation dimensions
|
Address: |
No. 3908 ShiBo Avenue, Baqiao District, Xi`an, China |
|
Email: |
sales@go-satcom.com tech@go-satcom.com |
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