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3.2. Power Supply
3.2.1. Power Supply Pins
The module provides six VBAT pins dedicated to the connection to an external power supply. There are
two separate voltage domains for VBAT.
⚫
Four VBAT_RF pins for module's RF part.
⚫
Two VBAT_BB pins for module's baseband part.
The following table shows details of VBAT pins and ground pins.
Table 9: VBAT and GND Pins
Pin Name
Pin No.
VBAT_RF
85–88
VBAT_BB
155, 156
10, 13, 16, 17, 24, 30, 31, 35, 39, 44, 45, 54, 55, 63, 64, 69, 70, 75, 76, 81–84, 89, 90,
GND
92–94, 96–100, 102–106, 108–112, 114–118, 120–126, 128-133, 141, 142, 148, 153,
154, 157, 158, 167, 174, 177, 178, 181, 184, 187, 191, 196, 202–208, 214–299
The power supply of the module ranges from 3.3 V to 4.4 V. Make sure the input voltage never drops
below 3.3 V, otherwise the module will be powered off automatically. The following figure shows the
voltage drop during Tx power in 3G/4G networks.
Figure 8: Power Supply Limits during Burst Transmission
EG060K &EG120K _Series_Hardware_Design
103
I/O
Description
Power supply for the module's RF part
PI
Power supply for the module's
PI
baseband part
Burst
Transmission
VCC
Burst
Transmission
Drop
LTE-A Module Series
Min.
Typ.
Max.
3.3
3.8
4.4
3.3
3.8
4.4
Ripple
34 /
Unit
V
V
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