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Snapdragon 820 SMARC SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.6.2
GPS Interface
The Snapdragon 820 SMARC SOM supports GPS through WGR7640 chipset. The WGR7640 IC is a dedicated GNSS RF
receiver and fabricated using an advanced RF CMOS process that accommodates high-frequency, high-precision
analog circuits and low-power CMOS functions. Also, WGR7640 chip is dedicated for GNSS receiver input for GPS,
GLONASS and COMPASS operations. RF antenna need to be connected for better GPS locking function. MHF-4 Micro
R Coax connector is used for interfacing the GPS antenna (J7) as shown in below figure.
Figure 4: GPS Antenna Connector