Low Cost High Quality GPS Module Atgm336h-5n

Product Description

1.    Function Description 

1.1     Summary

ATGM336H-5N series module is the genetic name of BDS/GNSS GPS navigation module series with good performance and 9.7x10.1 size. These series are based upon GNSSSOC single chip--AT6558, they support multiple systems such as BDS of China, GPS of the US, GLONASS of Russia, GALILEO of the EU, QZSS of Japan and Satellite augmentation system SBAS(WAAS, EGNOS, GAGAN, MSAS). AT6558 is the real meaning multimode satellite navigation module, which contains 32 tracking channels and accept 6 GNSS signals of satellite navigation systems, it an also realize the joint positioning ,navigation and timing. This series module with the advantage of high sensitivity, low-power consumption and low cost is suitable for car navigation, handheld positioning, wearable device and can directly take place of U-blox MAX series module.

1.2     Product Selection



1.3     Performance Index

Excellent positioning and navigation function. It supports BDS/GPS/GLONASS the single system positioning of the satellite navigation system, as well as any combination of multi system positioning, QZSS and SBAS systems.
It supports A-GNSS
Cold start capture sensitivity:-148dBm
Tracking sensitivity:-162dBm
positioning accuracy: 2.5m (CEP50)
Initial positioning time: 32s
Low power consumption: continuous operation< 25mA
Built in antenna detection and short circuit protection
Note1: The following performance indexes suit ATGM336H-5N-1X,ATGM336H-5N-3X,ATGM336H-5N-5X and ATGM336H-5N-7X models.
Note2: As for performance index of ATGM336H-5N-2X, please conform it with sales representative

1.4     Module function diagram 

Multi system signal processing engine


 
1.5 Application Fields

Vehicle positioning and navigation
Phone, Pad, Handheld device 
Embedded positioning system
Wearable device

1.6 Assist GNSS (Assisted GNSS, AGNSS)

All ATGM336H-5N series modules support assist GNSS (AGNSS) function. AGNSS could supply essential support information of positioning for receivers, such as massage, rough position and time. These information can significantly shorten the time for the first time, whether it is in the strong signal environment or weak signal environment.

1.7     PPS

ATGM336H-5N series modules support precise second pulse output, Pulse rising edge aligned with UTC time.

1.8    Output Protocol 

ATGM336H-5N series modules output are based on NMEA0138 protocol form, and its output main channel is UART.

1.9    Flash

Flash configuration of ATGM331C-5N series modules can update position function and system through online upgrade function. Users can configure location refresh rate themselves to get suitable low power by using this kind of configuration function. Also, users can update the latest optimization of global multi-mode positioning. In addition, users can add new control function such as location record, regular geographical enclosure and custom output format.

1.10    Online upgrade function 

ATGM336H-5N series modules support the online upgrade agreement of us. Users can upgrade new software program into modules by the upgrade agreement and the communication with modules to gain new characteristic of software. Users can also remote control the devices to start the upgrade process mentioned above to realize remote online upgradation. As for online update protocol, please refers to "ATGM Module online update protocol"

1.11    Antenna 

ATGM336H-5N series modules support active antenna and passive antenna.

1.12    Upper computer tools

We provide "GNSSToolKit" Lite software pack (Windows Edition and Android Edition) for positioning output resolution and working mode configuration. We also provide UBF serial port upgrade tool software pack (Windows Edition) for online upgrade tools based on PC. The online upgrade program of device need to be explored by users.

2. Technical Discription 

2.1 Apparent size (mm)


    

2.2 PCB layout (mm)


 
2.3 PIN Pareto Diagram
 


2.4 Pin Description
 


2.5 Electrical Parameters

limit parameters

Parameter                                           Symbol    Minimum Value    Maximum Value    Unit
Module power supplyvoltage(VCC)    Vcc           -0.3                      3.6                         V
Backup battery voltage( VBAT)           Vbat         -0.3                      3.6                         V
Digital input pin voltage                       Vin           -0.3                      Vcc+0.2                 V
Maximum acceptable level of ESD     VESD(HBM)                        2000                       V



2.6 Technical Specifications


2.7 Module application circuit

2.7.1 Active antenna applications (modules provide antenna power supply, antenna detection and short circuit protection)
 




2.7.2    Passive antenna applications (add LNA in module RF_IN input)


 
2.8 Considerations

In order to make full use of excellent performance of the module, the user needs to pay attention to the following points when using this module:
Use low ripple power supply, control the ripple within 50mVpp
Vicinity of module should be no other high frequency and large amplitude of the digital signal. All modules are filled with ground wire.
The RF input pin should be as close as possible to the Moxian wireless interface module, and be attention of impedance matching of 50 ohm.
The module has the active antenna access, pull out, short circuit detection circuit itself, the antenna power supply current limit (50mA), play the role of protection while in the antenna accident short circuit. When the above 3 kinds of antenna port state change, you can get information from the serial port. Such as: 
$GPTXT, 01, 01, 01, ANTENNA SHORT*63
$GPTXT, 01, 01, 01, ANTENNA OPEN*25
$GPTXT, 01, 01, 01, ANTENNA OK*35   

3. Test and Authentication of Reliable 

3.1 RoSH Authentication

ATGM336H-5N series modules all meet the certification.

4. Delivery and Welding of Module 

4.1 Package of Module 
ATGM336H-5N series of modules use vacuum tape packaging, with moisture, anti-static and other characteristics, the process of using is compatible with the industry's major patch machine. Package method is 1000 piece each set.


4.2 Transfer and storage of module

4.2.1 Moisture Level

Moisture Sensitivity Level MSL): 4
As for MSL, please refer to IPC/JEDEC J-STD-020 Standard

4.2.2 Reflow profile


     
Attention:
1. Adjust the balance time to ensure a reasonable treatment of gas when solder paste melt. It can increase the balanced time if there is a lot of space. 
2.Because the product will be placed in the weld zones(temperature will be over 180ºC),in order to prevent component and bottom plate from damaging, the placing time should be as short as possible.
Some important characteristic of curve:
Rising speed=1~4ºC/sec, 25ºC to 150ºC on average
Preheat temperature=140ºC to 150ºC,60sec ~ 90sec
Temperature fluctuation= 225ºC to 250ºC, about 30sec
Decent speed=2~6ºC/sec, to 183ºC, about 15sec
Total time= about 300sec

4.2.3 Electrostatic protection

ATGM336H-5N series module is one kind of electric sensitive elements. Regular electrostatic contact will cause the unexpected damage of module. Except standard ESD protection requirements, those following points should be followed:
1)    The first position of module should always be PCB GND unless PCB GND has been connected to ground.
2)    Connect GND to ground first before signal lines.
3)    Do not touch charging capacity when contacting RF circuit, also please get away from devise and equipment which could generate static electricity such as dielectric antenna, coaxial cable and electric soldering iron, etc.
4)    Don't not touch medium exposed part of antenna to prevent RFIN from charge discharge. As for the exposed antenna, add ESD protection circuit.
5)    Please use non electrostatic gun when welding connectors connected with RFIN and antenna. 
5.1 Module label
Module label includes some important product information, the label content format is as follows:

5.2 Rules of model designation

Take ATGM336H-5N-31-0 for instance, explanation is as follows:
Field    Example    Explanation  
Product code 
Name of product    ATGM336H    9.7mmX10.1mm series module
Type code    5N    Navigation module AT6558 hardware platform 
Type name        
Hardware code
Hardware function name    31    Hardware Version=1 hardware type with GPS+BDS function 
Software code
Software function name    0    Standard software function version

5.3 General order model

General order model    Product
ATGM336H-5N-11-0    9.7X10.1 size, AT6558 chip, navigation module, single GPS positioning, 16.369 Crystal oscillator, standard output
ATGM336H-5N-21-0    9.7X10.1 size, AT6558 chip, navigation module, single BDS positioning, 16.369 Crystal oscillator, standard output
ATGM336H-5N-31-0    9.7X10.1 size, AT6558 chip, navigation module, GPS+BDS positioning, 16.369 Crystal oscillator, standard output
ATGM336H-5N-51-0    9.7X10.1 size, AT6558 chip, navigation module, GPS+GLONASS positioning, 16.369 Crystal oscillator, standard output
ATGM336H-5N-71-0    9.7X10.1 size, AT6558 chip, navigation module, GPS+BDS+GLONASS positioning, 16.369 Crystal oscillator, standard output

5.4 Custom order model

We provide software function customized orders for Chinese clients.
As for specific cooperation and product orders, please contact the sales representative.
Reference:
1. AGNSS solution
2. CASIC multi-mode satellite navigation receiver protocol specification
3. ATGM module online upgrade agreement
4. AT6558 chip data manual
5. GNSSToolKitLite tool instructions
6. UBF serial port upgrade tool instructions