LEON-G100 / LEON-G200 - System Integration Manual
GSM.G1-HW-09002-G3
Preliminary
Design-In
Page 103 of 125
2.5.3
Module interfaces precautions
All module pins that are externally accessible should be included in the ESD immunity test since they are
considered to be a port [10]. 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 surface.
The maximum ESD sensitivity rating of all the pins of the module, except the
ANT
pin, is 1 kV (Human Body
Model according to JESD22-A114F). A higher protection level can be achieved by mounting an ESD protection
(e.g. EPCOS CA05P4S14THSG varistor array).
For the SIM interface a low capacitance (i.e. less than 10 pF) ESD protection (e.g. Infineon ESD8V0L2B-03L or
AVX USB0002) must be placed near the SIM card holder on each line (
VSIM
,
SIM_IO
,
SIM_CLK
,
SIM_RST
).
