Neoway N715-EA - Application Interfaces; Power Interfaces

N715-EA Hardware User Guide
Chapter 5 Application Interfaces
Copyright © Neoway Technology Co., Ltd. All rights reserved.
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5 Application Interfaces
N715-EA provides power, control, communication, peripherals, audio, video, and RF interfaces to meet
the functional requirements of customers in different application scenarios.
This chapter describes how to design each interface and provides reference designs and guidelines.
5.1 Power Interfaces
The schematic design and PCB layout of the power supply part are the most critical process in
application design and they will determine the performance of customers’ applications. Please read the
design guidelines of power supply and comply with the correct design principles to obtain the optimal
circuit performance.
Signal
Pin
I/O
Function description
Remarks
VBAT
36, 37
PI
Power input of the module
3.4 V - 4.2 V, type: 3.6 V
VBAT_SENSE
29
AI
VBAT voltage sampling
pin
The pin must be connected to
VBAT; otherwise, the module
cannot start up.
VDD_1P8
76
PO
1.8 V power output
V
norm
=1.8 V, I
max
= 50 mA
GND
18, 30, 35, 38, 41, 43 - 45, 47, 73, 77 - 92
All the GND pins are intended
to be connected to ground.
5.1.1 VBAT
The power supply design covers two parts: schematic design and PCB layout.