LE940B6 HW User Guide
Rev. 2.02
Page 97 of 111
2020-01-10
EMC Recommendations
All LE940B6 signals are provided with some EMC protection. Nevertheless, the accepted
level differs according to the specific pin. Table 39 lists the characteristics.
Table 39: EMC Recommendations
Pad
Signal
I/O
Function
Contact
Air
Antenna
AD1, AU9
Antenna
pads
I/O
Antenna pads
± 4 KV
± 8 KV
All other pins have the following characteristics:
•
HBM JESD22-A114-B ± 1000 V
•
CDM JESD22-C101-C ± 250 V
WARNING:
Do not touch without proper electrostatic protective equipment. The product
must be handled with care, avoiding any contact with the pins because
electrostatic discharge may damage the product.
Download and Debug Port
This section provides recommendations for the design of the host system used to
download or upgrade the Titan software and to debug the LE940B6 module when it is
already mounted on a host system.
•
For downloading or upgrading the Titan software
In the LE940B6 module, firmware updates by the host are only possible via USB
and not via UART.
So even if USB interface is not used, it is still highly recommended to place an
optional USB connector on the application board.At the minimum, test points of the
USB signals are required to enable SW update.
•
For debugging the LE940B6 module
USB, Auxiliary UART and JTAG interfaces can be used for debugging the
LE940B6 module. Even if USB or JTAG are not used for debugging, it is
recommended to have at least the Auxiliary UART pins exposed to the outside for
debugging purposes.
Provided
to
Dekra
under
NDA
Distribution
is
Prohibited
except
for
Dekra
employees
with
a Need
to
know
