Pin Description - Quectel EG915U-EU Manual

2.5. Pin Description

The following table shows the DC characteristics and pin descriptions.
Table 5: I/O Parameters Definition
Type
AI
AIO
DI
DO
DIO
OD
PI
PO
Table 6: Pin Description
Power Supply
Pin Name Pin No.
VBAT_BB 32, 33
VBAT_RF 52, 53
VDD_EXT 29
EG915U-EU_Hardware_Design
I/O Description
Power supply for the
PI
module's baseband part
Power supply for the
PI
module's RF part
Provide 1.8 V for
PO
external circuit
LTE Standard Module Series
Description
Analog Input
Analog Input/Output
Digital Input
Digital Output
Digital Input/Output
Open Drain
Power Input
Power Output
DC
Comment
Characteristics
It must be
provided with
sufficient current
Vmax = 4.3 V
up to 1 A
Vmin = 3.3 V
It must be
Vnom = 3.8 V
provided with
sufficient current
up to 2.5 A
Power supply for
external GPIO's
Vnom = 1.8 V
pull-up circuits.
I max = 50 mA
O
Add 2.2 μF
bypass capacitor
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