LTE Module Series
EC21 Hardware Design
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VBAT_RF
min/max values, including
voltage drop, ripple and
spikes.
Voltage drop during
burst transmission
Maximum power control
level on GSM900
400
mV
I
VBAT
Peak supply current
(during transmission
slot)
Maximum power control
level on GSM900
1.8
2.0
A
USB_VBUS
USB detection
3.0
5.0
5.25
V
6.3. Operating Temperature
The operating temperature is listed in the following table.
Table 32: Operating Temperature
Parameter
Min.
Typ.
Max.
Unit
Operation Temperature Range
1)
-35
+25
+75
ºC
Extended Temperature Range
2)
-40
+85
ºC
1.
1)
Within operation temperature range, the module is 3GPP compliant.
2.
2)
Within extended temperature range, the module remains the ability to establish and maintain a
voice, SMS, data transmission, emergency call, etc. There is no unrecoverable malfunction. There
are also no effects on radio spectrum and no harm to radio network. Only one or more parameters
like P
out
might reduce in their value and exceed the specified tolerances. When the temperature
returns to the normal operating temperature levels, the module will meet 3GPP specifications again.
NOTES
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