Quectel LC79D User Manual

GNSS Module Series
LC79D Hardware Design
LC79D_Hardware_Design 15 / 42
1. Keep all unused and RESERVED pins open.
2. LC79D (A) does not support RDY feature, please keep this pin open while designing.
3.2. Pin Description
Table 5: I/O Parameters Definition
Table 6: Pin Description
Type
Description
AI
Analog Input
AO
Analog Output
DI
Digital Input
DO
Digital Output
IO
Bidirectional
OD
Open Drain
PI
Power Input
PO
Power Output
Power Supply
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
VCC
8
PI
Main power supply
Vmax=1.9V
Vmin=1.7V
Vnom=1.8V
Ensure the load
current not less than
100mA.
VCC_RF
14
PO
Power supply for
external RF
components
VCC_RF≈VCC:
Vmax=1.9V
Vmin=1.7V
Vnom=1.8V
Typically used to
supply power for an
external active
antenna or LNA.
If unused, keep this
pin open.
NOTES

Quectel LC79D Specifications

General

Brand	Quectel
Model	LC79D
Category	Control Unit
Language	English