G6
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
7
3 Application Interfaces
There are 24 pins on G6 and their pads are introduced into LCC package. IThe module provides power
interfaces, UART interfaces, 1PPS, and other interfaces. This chapter describes each interface and
their reference designs.
3.1 Power Supply Pins
Signal
Pin I/O Function
Remarks
VCC
23
PI
Main power supply input 2.7 V~3.6 V (TYP: 3.3 V)
V_BCKP 22
PI
Backup power supply
input
1.4 V~3.6 V (TYP: 3.3/3.0 V)
Supply power for RTC and backup RAM.
Leave this pin unconnected if it is not used.
VCC_RF 9
PO RF power output
VCC_RF=VCC
Supply power for external LNA or active antenna
GND
10, 12, 13, 24
Ensure that all GND pins are connected to the
ground.
Power pins should be used respectively following rules below:
VCC
VCC is the main power supply of the module. Its input voltage ranges from 2.7 V to 3.6 V and
the preferable value is 3.3 V.
This pin is used to supply power for the internal baseband, RF, and LNA of the module. The
performance of power supply is a critical path to module's performance and stability.
It is recommended to use a low-noise LDO dedicated for RF as the power supply.
V_BCKP
V_BCKP is the backup power input of the module. Its input voltage ranges from 1.4 V to 3.6 V
and the preferable value is 3.3/3.0 V. Button cell battery or supercapacitor is an option.
It is used to supply power for RTC and backup RAM.
With this power input, the module can save some key ephemeris data after VCC is powered
down so that it is able to achieve hot start and warm start, and position calculation.
