u-blox AMY-5M, Руководство по интеграции оборудования

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AMY-5M - Hardware Integration Manual Objective Specification Product Handling
GPS.G5-MS5-08207 u-blox proprietary Page 40
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3.4 ESD Handling Precautions
GPS receivers are Electrostatic Sensitive Devices (ESD) and require special precautions when handling. Particular
care must be exercised when handling patch antennas, due to the risk of electrostatic charges. In addition to
standard ESD safety practices, the following measures should be taken into account whenever handling the
receiver:
•
Unless there is a galvanic coupling between the local GND (i.e. the
work table) and the PCB GND, then the first point of contact when
handling the PCB shall always be between the local GND and PCB
GND.
GND
Local GND
•
When handling the RF pin, do not come into contact with any
charged capacitors and be careful when contacting materials that
can develop charges (e.g. patch antenna ~10pF, coax cable ~50-
80pF/m, soldering iron, …)
ESD
Sensitive!
RF_IN
•
To prevent electrostatic discharge through the RF input do not
touch the mounted patch antenna.
•
When soldering RF connectors and patch antennas to the receiver’s
RF pin, make sure to use an ESD safe soldering iron (tip).
RF_IN
ESD Safe
Failure to observe these precautions can result in severe damage to the GPS receiver!
For ESD protection design measures see Section 2.9.