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FIBOCOM NL668-AM Hardware User Manual
Page 49 of 62
5 Electrical Characteristics
5.1 Limiting voltage range
The limiting voltage range refers to the power voltage of the module and the maximum voltage range that
the digital and analog input/output interfaces can withstand.
The voltage range of NL668-AM is shown in the following table.
Parameter
Description
Min
Typ
Max
Unit
VBAT
Power supply
-0.3
-
4.7
V
GPIO
Power supply voltage of
digital I/O
-0.3
-
2.0
V
Table 5-1 Voltage Range
5.2 Environment temperature range
NL668-AM module is recommended to operate at -30~+75
℃
ambient. It is recommended that the
application uses temperature control measures under harsh environmental conditions. At the same time,
the limited operating temperature range of the module should be provided. Under these temperature
conditions, some RF parameters may exceed the limit. It is recommended that the module application
terminal be stored in certain temperature conditions. Modules outside this range may not operate or may
be damaged.
Temperature
Min
Typ
Max
Unit
Operating temperature
-30
25
75
℃
Limited operating temperature
-40
85
℃
Storage temperature
-40
85
℃
Table 5-2Environment Temperature Range
5.3 Electrical characteristics of the interface in
operating status
V
L
: logic low level;
V
H
: logic high level;
