Pin Description - Quectel EG91 Series Hardware Design

NOTE
1. PWRKEY output voltage is 0.8 V because of the diode drop in the baseband chipset.
2. Keep all RESERVED pins and unused pins unconnected.
3. GND pins should be connected to ground in the design.
4. Pin 49 is defined as ANT_GNSS on EG91-AUX/-EX/-NA/-NAL/-NAX/-NAXD/-NAXDL/-VX, while it is
defined as ANT_DIV on EG91-E.
5. Pin 56 is RESERVED on EG91-E, while it is defined as ANT_DIV on EG91-EX/-NA/-NAL/-NAX/
-NAXD/-NAXDL/-VX. Rx-diversity antenna is not supported on EG91-AUX.

3.3. Pin Description

The following tables show the pin definition and description of EG91 series module.
Table 3: Definition of I/O Parameters
Type
AI
AO
AIO
DI
DO
DIO
OD
PI
PO
EG91_Series_Hardware_Design
Description
Analog Input
Analog Output
Analog Input/Output
Digital Input
Digital Output
Digital Input/Output
Open Drain
Power Input
Power Output
LTE Standard Module Series
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