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Table 9: Absolute maximum ratings
Symbol
Parameter
Min
Typ
Max
Unit
VBAT
Power supply voltage
4.5
-
30
V
V
I
*
Input voltage
-0.3
-
3.1
V
I
I
*
Input current
-
-
10
mA
I
O
*
Output current
-
-
10
mA
*
These parameters are for digital interface pins, such as GPIO, UART and DEBUG.
7.2
Recommended Operating Conditions
Table 10: Recommended operating conditions
Symbol
Parameter
Min
Typ
Max
Unit
VBAT
Power supply voltage
5
12
30
V
T
OPER
Operating temperature
-40
+25
+85
℃
T
STG
Storage temperature
-45
+90
℃
7.3
Electro-Static Discharge
HDM1004G is an ESD sensitive component, so more attention should be paid to the
procedure of handling and packaging. The ESD test results are shown in the following table.
Table 11: The ESD characteristics (Temperature: 25
℃
, Humidity: 45 %)
Test item
Contact discharge
Air discharge
Shell
±10KV
±15KV
RF interface
±10KV
±15KV
RS232 interface
±10KV
±15KV
Audio interface
±10KV
±15KV
SIM card holder
±10KV
±15KV
7.4
Operating frequency
The operating frequencies in LTE frequency bands are conform to the LTE Specifications,
shown as bellow.
