LEA-6 / NEO-6 - Hardware Integration Manual
GPS.G6-HW-09007-A Preliminary Product handling
Page 42 of 62
• 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.
• Before mounting an antenna patch, connect ground of the device.
• 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, …)
• To prevent electrostatic discharge through the RF input, do not
touch any exposed antenna area. If there is any risk that such
exposed antenna area is touched in non ESD protected work area,
implement proper ESD protection measures in the design.
• When soldering RF connectors and patch antennas to the receiver’s
RF pin, make sure to use an ESD safe soldering iron (tip).
Failure to observe these precautions can result in severe damage to the GPS receiver!
3.3.4 ESD protection measures
GPS receivers are sensitive to Electrostatic Discharge (ESD). Special precautions are required
when handling.
Most defects caused by ESD can be prevented by following strict ESD protection rules for production and
handling. When implementing passive antenna patches or external antenna connection points, then additional
ESD measures as shown in Figure 33 can also avoid failures in the field.
Small passive antennas (<2 dBic
and performance critical)
Passive antennas (>2 dBic or
performance sufficient)
Active Antennas
A
LNA with appropriate ESD rating
Figure 33: ESD Precautions
Protection measure A is preferred because it offers the best GPS performance and best level of ESD
protection.
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