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RM-701
BB Troubleshooting and Manual Tuning Guide
WLAN troubleshooting
Troubleshooting flow
GPS troubleshooting
Introduction to GPS troubleshooting
GPSCost5.0D is a single chip GPS receiver, comprising both RF and BB blocks integrated in a single digital die.
GPSCost5.0D is connected to RAPU ASIC via I2C_1 and some GENIOs. GPSCost5.0D operates in Multi-master
mode and the REF clock is requested via CAL_REQ signal connected to RAPU genio46. REFOUT_EXT2 single
ended 38.4 MHz analog clock from Linko RF is provided to GPSCost5.0D.
The GPS components are located on the bottom side of the PWB. Satellite signals are picked up by the GPS
antenna and the signal is then processed by the BCM4751 receiver ASIC.
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COMPANY CONFIDENTIAL
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Table of Contents
Troubleshooting
