Quectel EG91 Series Hardware Design page 27
Lte standard module
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Also See for EG91 Series:
- Hardware design (98 pages) ,
- Hardware design (94 pages) ,
- Hardware design (109 pages)
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Table 4: Pin Description
Power Supply
Pin
Pin Name
No.
VBAT_BB
32, 33
VBAT_RF
52, 53
VDD_EXT
29
GND
3, 31, 48, 50, 54, 55, 58, 59, 61, 62, 67–74, 79–82, 89–91, 100–106
Power-on/off
Pin
Pin Name
No.
PWRKEY
15
RESET_N
17
Status Indication
Pin
Pin Name
No.
STATUS
20
NETLIGHT
21
USB Interface
Pin
Pin Name
No.
EG91_Series_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
I/O
Description
Turn on/off the
DI
module
DI
Reset the module
I/O
Description
Indicate the
DO
module's operation
status
Indicate the
DO
module's network
activity status
I/O
Description
LTE Standard Module Series
DC
Comment
Characteristics
Vmax = 4.3 V
It must be provided with
Vmin = 3.3 V
sufficient current up to
Vnom = 3.8 V
0.8 A.
It must be provided with
Vmax = 4.3 V
sufficient current up to
Vmin = 3.3 V
1.8 A in a burst
Vnom = 3.8 V
transmission.
Power supply for
Vnom = 1.8 V
external GPIO's pull up
I
max = 50 mA
circuits.
O
If unused, keep it open.
DC
Comment
Characteristics
The output voltage is
0.8 V because of the
V
= 0.8 V
IH
diode drop in the
baseband chipset.
Require pull-up resistor
V
max = 2.1 V
IH
to 1.8 V internally.
V
min = 1.3 V
IH
Active low.
V
max = 0.5 V
IL
If unused, keep it open.
DC
Comment
Characteristics
V
min = 1.35 V
1.8 V power domain.
OH
V
max = 0.45 V
If unused, keep it open.
OL
DC
Comment
Characteristics
26 / 105
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