1. Function Description
1.1 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.
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(@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
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
2. Technical Discription
2.1 Apparent size (mm)
2.2 PCB layout (mm)
2.3 PIN Pareto Diagram
2.4 Pin Description
Pin Number Name I/O Description Electrical characteristics
1 NC
2 Reserve NC
3 1PPS O pulse output per second
4 Reserve NC
5 NC
6 NC
7 NC
8 nRESET I Module reset input
Low level effective NC when not using
9 VCC_RF O Output power supply +3.3V, power supply of antenna
10 GND I Ground
11 RF_IN I Antenna signal input
12 GND I Ground
13 GND I ground
14 NC
15 NC
16 TXD2 O Auxiliary serial data output, can be used for code upgrade
17 RXD2 I Auxiliary serial data input, can be used for code upgrade
18 SDA I/O I2C data interface NC
19 SCL O I2C clock interface NC
20 TXD1 O Navigation data output NMEA0183 protocol
21 RXD1 I Interaction command input Configuration command input
22 VBAT I RTC and SRAM backup power supply Supply 1.5V~3.6V power to make sure of module warm start
23 VCC I Module power supply input DC 3.3V±10%,100mA
24 GND I Ground
2.5 Electrical Parameters
Audited Supplier 
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