WLAN troubleshooting
Troubleshooting flow
GPS troubleshooting
Introduction to GPS troubleshooting
GPSCost4.1D is a single chip GPS receiver, comprising both RF and BB blocks integrated in a single digital die.
GPSCost4.1D is connected to RAPU ASIC via I2C_1 and some GENIOs. GPSCost4.1 D operates in Multi-master
mode and the REF clock is requested via AGPS_CLK_REQ signal connected to RAPU genio46. REFOUT_EXT2 single
ended 38.4 MHz analog clock from Linko RF is provided to GPSCost4.1D.
The GPS components are located on the bottom side of the PWB. Satellite signals are picked up by the GPS
antenna in the top end cap. The signal is then processed by the GPS5350 receiver ASIC.
RM-626
BB Troubleshooting and Manual Tuning Guide
Issue 1
COMPANY CONFIDENTIAL
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