L10 Hardware Design
5.2 Absolute maximum ratings
Absolute maximum rating for power supply and voltage on digital pins of module are listed in Table
17.
Table 17: Absolute maximum ratings
Parameter
Min
Max
Unit
Power supply voltage
（
VCC
）
-0.3
4.3
V
Backup battery voltage (V_BCKP)
-0.3
4.3
V
USB supply voltage (VDDUSB)
-0.3
3.6
V
-0.5 3.6
V
Input voltage at digital pins
-0.5 3.6
V
VCC_RF output current (Ivccrf)
50
mA
Input power at RF_IN (Prfin)
0
dBm
Antenna bias voltage(V_ANT)
0 6
V
Antenna bias current(Iant)
100 mA
Storage temperature
-45 125
°C
Note: Stressing the device beyond the “Absolute Maximum Ratings” may cause permanent damage.
These are stress ratings only. The product is not protected against over voltage or reversed voltage.
If necessary, voltage spikes exceeding the power supply voltage specification, given in table above,
must be limited to values within the specified boundaries by using appropriate protection diodes.
5.3 Operating conditions
Table 18: The module power supply ratings
Parameter
Description
Conditions
Min
Typ
Max
Unit
VCC
Supply voltage
Voltage must stay
within the min/max
values, including
voltage drop, ripple,
and spikes.
3.0 3.3 4.3 V
I
VCCP
*
Peak supply current
VCC=3.3V
150
mA
V_BCKP Backup
voltage
supply
2.0
3.3
4.3
V
I
BCKP
Backup
battery
current
V_BCKP=3.3V 4
uA
V_ANT
Antenna bias voltage
2.7
5.5
V
V
ANT_DROP
Antenna
bias
0.1 V
L10_HD_V1.01
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