User Guide

FN980 FAMILY HW Design Guide
1VV0301603 Rev. 5 Page 23 of 78 2020-06-29
Environmental Requirements
2.8.1. Temperature Range
Note
Operating
Temperature Range
–20°C ~ +55°C This range is defined by 3GPP (the global
standard for wireless mobile communication).
Telit guarantees its modules to comply with all
3GPP requirements and to have full
functionality of the module with in this range.
–40°C ~ +85°C Telit guarantees full functionality within this
range as well. However, there may possibly
be some performance deviations in this
extended range relative to 3GPP
requirements, which means that some RF
parameters may deviate from the 3GPP
specification in the order of a few dB. For
example: receiver sensitivity or maximum
output power may be slightly degraded.
Even so, all the functionalities, such as call
connection, SMS, USB communication,
UART activation etc., will be maintained, and
the effect of such degradations will not lead to
malfunction.
Storage and non-
operating
Temperature Range
–40°C ~ +85°C
Warning – The temperature of application processor which is in
FN980 Family must be kept below 95°C for the best performance.
Depending on the various application, it can be required a heat sink,
thermal pad or other cooling system to dissipate heat well.
There is the large solder resist opening area on the bottom side of the
module. Adding a TIM on that area with a heatsink is one of the best
way to dissipate heat well.
The temperature can be read via AT commands.
For more details, please refer to SW user guide or thermal design
guideline.