User's Manual

LISA-U1/LISA-H1 series - System Integration Manual
3G.G2-HW-10002-2 Advance Information Design-In
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 If the device implements an external antenna and the antenna or its connecting cable are not provided with
completely insulating enclosure to avoid air discharge up to +8 kV / -8 kV to the whole antenna and cable
surfaces, precautions to ESD immunity test should be implemented on the application board
A higher protection level is required at the ANT port if the line is externally accessible on the application board.
2.5.3 Module interfaces precautions
All the module pins that are externally accessible should be included in the ESD immunity test since they are
considered to be a port [11]. Depending on applicability, and in order to satisfy ESD immunity test requirements
and ESD category level, pins connected to the port should be protected up to +4 kV / -4 kV for direct Contact
Discharge, and up to +8 kV / -8 kV for Air Discharge applied to the enclosure.
The maximum ESD rating of all the pins of the module, except the ANT pin, is 1 kV (HBM according MIL-Std
883D, method 3015.7, EOS/ESD Standard S5.1-1993). A higher protection level can be achieved by mounting an
ESD protection (e.g. EPCOS CA05P4S14THSG varistor array).