Zhejiang, China
Business Type:
Manufacturer/Factory, Trading Company
Registered Capital:
1000000 RMB
Plant Area:
>2000 square meters
Management System Certification:
ISO 9001, ISO 14000, ISO/TS 16949, HSE
Average Lead Time:
Peak season lead time: one month
Off season lead time: within 15 workday
OEM/ODM Service
Sample Available

GPS Positioning, Navigator, Gnss Soc manufacturer / supplier in China, offering Low Cost High Quality GPS Module Atgm332D-5n, High Quality Carbon Brush for Hilti Te-72, High Quality Carbon Brush for Hilti Te-70 7X12.5X26 and so on.

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Low Cost High Quality GPS Module Atgm332D-5n

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Min. Order / Reference FOB Price
500 Pieces US $3.5/ Piece
Port: Shanghai, China
Production Capacity: 10000000
Payment Terms: T/T, Western Union, Paypal
Certification: ISO/TS16949, ISO14001, ISO2000
Use: Automotive&Hand Held
Operating Principle: Mixed Type
Port Number: Multiplex Multi-purpose Channel
Model: Integration Type
Type: GPS Module

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Basic Info

Model NO.: ATGM332D-5N
Trademark: EDT
Transport Package: Carton Box
Specification: 16x12
Origin: Zhejiang
HS Code: 8529905000

Product Description

  1. Function Description
    1.  Summary
ATGM332D-5N series module is the genetic name of BDS/GNSS GPS navigation module series with good performance and 12X16 size. These series are based upon GNSS SOC 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 NEO series module.
 Product Selection


 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
old start capture sensitivity:-148dBm
Tracking sensitivity:-162dBm
positioning accuracy: 2.5m (CEP50)
Initial positioning time: 32s
Low power consumption: continuous operation< 25mA(@3.3V)
Built in antenna detection and short circuit protection
Note1: The following performance indexes suit ATGM332D-5N-1X, ATGM332D-5N-3X, ATGM332D-5N-5X and ATGM332D-5N-7X models.
Note2: As for performance index of ATGM332D-5N-2X, please conform it with sales representative  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 ATGM332D-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. See the specific use of "Zhongkewei AGNSS Solution".
PPS ATGM332D-5N series modules support precise second pulse output, pulse rising edge aligned with UTC time.
Output Protocol ATGM332D-5N series modules output are based on NMEA0183 protocol form, and its output main channel is UART.
Flash Flash configuration of ATGM332D-5N series modules can update position function and system by online upgrade function. Users can configure location refresh rate themselves to get suitable low power by using this 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.
Online upgrade function ATGM332D-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 characteristics of software. Users can also remote control the devices to start the upgrade process mentioned above to realize remote online upgradation.
Antenna ATGM331C-5N series modules support active antenna and passive antenna.
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
Pin NumberNameI/ODescriptionElectrical characteristics
2Reserve  NC
31PPSOpulse output per second 
4Reserve  NC
8nRESETIModule reset input
Low level effective
NC when not using
9VCC_RFOOutput power supply +3.3V, power supply of antenna
11RF_INIAntenna signal input 
16TXD2OAuxiliary serial data output, can be used for code upgrade 
17RXD2IAuxiliary serial data input, can be used for code upgrade 
18SDAI/OI2C data interfaceNC
19SCLOI2C clock interfaceNC
20TXD1ONavigation data outputNMEA0183 protocol
21RXD1IInteraction command inputConfiguration command input
22VBATIRTC and SRAM backup power supplySupply 1.5V~3.6V power to make sure of module warm start
23VCCIModule power supply inputDC 3.3V±10%,100mA
2.5 Electrical Parameters
Limit parameters
     Parameter   SymbolMinimum ValueMaximum ValueUnit
Module power
supply voltage(VCC)
Backup battery voltage( VBAT)Vbat-0.33.6V
Digital input pin voltageVin-0.3Vcc+0.2V
Maximum acceptable level of ESDVESD(HBM) 2000V
Operational Condition
ParameterSymbolMinimum valueTypical
Power supply voltageVcc
Vcc peak current
(with out antenna)
Ipeak  100mA
Backup power supply Vbat1.53.03.6V
Backup-power supply(Vbat) currentIbat 10 V
Input pinVil  0.2*VccV
Vih0.7*Vcc  V
Output pin
Vcc-0.5  V
Active antenna output voltageVcc_RF  3.3 V
Antenna short circuit protection current
Iant short 50 mA
Open circuit current
Lant open 3 mA
Antenna gainGant15 30dB
2.6 Technical Specifications
IndexTechnical Parameter
Frequency channel numberThree channel receiver, support BDS, GPS,GLONASS
Cold Start TTFF≤32s
Warm Start TTFF≤1s
Cold start capture sensitivity-148 dBm
Warm start capture sensitivity-156 dBm
Recapture sensitivity-160 dBm
Tracking sensitivity-162 dBm
Positioning sensitivity<2m (1σ)
Precision of velocity measurement<0.1m/s ( 1σ)
Timing accuracy <30ns(1σ)
Location update rate1Hz(default value ), maximum value 10Hz
Serial port propertyBaud rate range: 4800bps~115200bps, default value 9600bps, 8 data bits, No calibration, one stop bit
Maximum height18000m
Maximum speed515m/s
Maximum acceleration 4g
Backup battery1.5V~3.6V
Power supply 2.7V~3.6V
GPS&BD typical power consumption <25mA@3.3V
Working temperature -40ºC~+85ºC
Storage temperature-45ºC~+125ºC
2.7 Module application circuit
2.7.1 Active antenna applications (modules provide antenna power supply, antenna detection and short circuit protection)

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, users need to pay attention to the following points when using this module:
Use low ripple LDO power supply, control the ripple within 50mVpp
Vicinity of module should be no other high frequency and large amplitude digital signal. All modules are filled with ground wire.
The RF input pin should be as close as possible to the wireless interface module, and be attention to 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 RoSH certification.
4. Delivery and Welding of Module
4.1 Package of Module
ATGM332D-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
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 on PCBA.
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
ATGM332D-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:
The first position of module should always be PCB GND unless PCB GND has been connected to ground. Connect GND to ground first before signal lines. 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. Don't not touch medium exposed part of antenna to prevent RFIN from charge discharge. As for the exposed antenna, add ESD protection circuit. Please use non electrostatic gun when welding connectors connected with RFIN and antenna. 5.1 Module label
ATGM332D-5N module label includes some important product information, the label content format is as follows:

5.2 Rules of model designation
Take ATGM332D-5N-31-0 for instance, explanation is as follows:
Product code
Name of product
ATGM332D12mmX16mm series module
Type code
Type name
5NNavigation module AT6558 hardware platform
Hardware code
Hardware function name
31Hardware Version=1 hardware type with GPS+BDS function
Software code
Software function name
0Standard software function version
5.3 General order model
General order modelProduct
ATGM332D-5N-11-012X16 size, AT6558 chip, navigation module, single GPS positioning, 16.369 Crystal oscillator, standard output
ATGM332D -5N-21-012X16 size, AT6558 chip, navigation module, single BDS positioning, 16.369 Crystal oscillator, standard output
ATGM332D -5N-31-012X16 size, AT6558 chip, navigation module, GPS+BDS positioning, 16.369 Crystal oscillator, standard output
ATGM332D -5N-51-012X16 size, AT6558 chip, navigation module, GPS+GLONASS positioning, 16.369 Crystal oscillator, standard output
ATGM332D -5N-71-012X16 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.
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



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