Neoway N77 Installationshandbuch

Hardware User Guide

Issue 1.0 Date 2021-02-01

N77 Hardware User Guide

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consent of Neoway Technology Co., Ltd.

is the trademark of Neoway Technology Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective

holders.

Notice

This document provides guide for users to use N77.

This document is intended for system engineers (SEs), development engineers, and test engineers.

THIS GUIDE PROVIDES INSTRUCTIONS FOR CUSTOMERS TO DESIGN THEIR APPLICATIONS.

PLEASE FOLLOW THE RULES AND PARAMETERS IN THIS GUIDE TO DESIGN AND COMMISSION.

NEOWAY WILL NOT TAKE ANY RESPONSIBILITY OF BODILY HURT OR ASSET LOSS CAUSED BY

IMPROPER OPERATIONS.

THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE DUE TO

PRODUCT VERSION UPDATE OR OTHER REASONS.

EVERY EFFORT HAS BEEN MADE IN PREPARATION OF THIS DOCUMENT TO ENSURE ACCURACY

OF THE CONTENTS, BUT ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS

DOCUMENT DO NOT CONSTITUTE A WARRANTY OF ANY KIND, EXPRESS OR IMPLIED.

Neoway provides customers complete technical support. If you have any question, please contact your

account manager or email to the following email addresses:

[email protected]

Website: http://www.neoway.com

 
N77 Hardware User Guide 
Contents 
 
Copyright © Neoway Technology Co., Ltd. 
iii 
 
Contents 
About N77................................................................................................10 
1 Product Overview....................................................................................................................... 10 
2 Block Diagram............................................................................................................................ 10 
3 Basic Features ............................................................................................................................11 
Module Pins.............................................................................................13 
1 Pin Layout .................................................................................................................................. 13 
2 Pin Description ........................................................................................................................... 14 
Application Interfaces ..............................................................................22 
1 Power Interface .......................................................................................................................... 22 
1.1 VBAT.................................................................................................................................. 22 
1.2 VDD_1P8 ........................................................................................................................... 25 
2 Control Interfaces....................................................................................................................... 25 
2.1 PWRKEY_N ...................................................................................................................... 26 
2.2 PWRKEY ........................................................................................................................... 27 
2.3 RESET_N .......................................................................................................................... 29 
3 Peripheral Interfaces .................................................................................................................. 31 
3.1 USB ................................................................................................................................... 31 
3.2 UART................................................................................................................................. 32 
3.3 USIM.................................................................................................................................. 35 
3.4 SPI..................................................................................................................................... 37 
3.5 IIC ...................................................................................................................................... 37 
3.6 ADC ................................................................................................................................... 38 
3.7 SLEEP ............................................................................................................................... 39 
3.8 NET_LIGHT....................................................................................................................... 41 
3.9 RING.................................................................................................................................. 42 
3.10 USB_BOOT..................................................................................................................... 43 
3.11 GPIO................................................................................................................................ 43 
4 RF Interface................................................................................................................................ 44 
4.1 Antenna Interface .............................................................................................................. 44 
4.2 Antenna Assembling.......................................................................................................... 46 
Electric Feature and Reliability ................................................................49 
1 Electric Features ........................................................................................................................ 49 
2 Temperature Features................................................................................................................ 50 
3 ESD Protection........................................................................................................................... 50 
RF Features.............................................................................................51 
1 Operating Bands ........................................................................................................................ 51 
2 TX Power and RX Sensitivity ..................................................................................................... 52 
Mechanical Features ...............................................................................54 
1 Dimensions................................................................................................................................. 54 

N77 Hardware User Guide

Contents

6.2 Label........................................................................................................................................... 54

6.3 Packing....................................................................................................................................... 55

6.3.1 Reel ................................................................................................................................... 55

6.4 Moisture...................................................................................................................................... 56

7 Mounting N77 onto Application PCB .......................................................57

7.1 Bottom Dimensions .................................................................................................................... 57

7.2 Application Foot Print ................................................................................................................. 58

7.3 Stencil......................................................................................................................................... 58

7.4 Solder Paste............................................................................................................................... 59

7.5 SMT Furnace Temperature Curve.............................................................................................. 59

8 Safety Recommendations .......................................................................61

BOM ........................................................................................................62

Abbreviation ............................................................................................63

N77 Hardware User Guide

Table of Figures

Figure 1-1 Block Diagram...................................................................................................................11

Figure 2-1 N77 pin definition............................................................................................................ 13

Figure 3-1 Recommended design 1................................................................................................. 23

Figure 3-2 Recommended design 2................................................................................................. 23

Figure 3-3 Recommended design 3................................................................................................. 24

Figure 3-4 Reference design of startup controlled by button........................................................... 26

Figure 3-5 Reference design of startup controlled by MCU............................................................. 26

Figure 3-6 Reference design of automatic start once powered up.................................................. 26

Figure 3-7 Reference design of automatic start once powered up.................................................. 27

Figure 3-8 Startup process............................................................................................................... 28

Figure 3-9 Shutdown process .......................................................................................................... 29

Figure 3-10 Reset controlled by button............................................................................................ 30

Figure 3-11 Reset circuit with triode separating............................................................................... 30

Figure 3-12 N77 reset process......................................................................................................... 31

Figure 3-13 USB connection ............................................................................................................ 32

Figure 3-14 UART connection.......................................................................................................... 33

Figure 3-15 Recommended level shifting circuit 1........................................................................... 34

Figure 3-16 Recommended level shifting circuit 2........................................................................... 35

Figure 3-17 Reference design of the USIM card interface .............................................................. 36

Figure 3-18 SPI connection.............................................................................................................. 37

Figure 3-19 SPI timing ..................................................................................................................... 37

Figure 3-20 IIC connection............................................................................................................... 38

Figure 3-21 IIC timing....................................................................................................................... 38

Figure 3-22 Process of entering sleep mode ................................................................................... 39

Figure 3-23 Service execution process when the module is in sleep mode.................................... 40

Figure 3-24 Process of exiting from sleep mode ............................................................................. 41

Figure 3-25 Driving LED with a triode .............................................................................................. 42

N77 Hardware User Guide

Table of Figures

Figure 3-26 RING prompt for an incoming call ................................................................................ 42

Figure 3-27 RING prompt for an incoming SMS .............................................................................. 43

Figure 3-28 Reference design of USB_BOOT................................................................................. 43

Figure 3-29 L-type network .............................................................................................................. 45

Figure 3-30 T-type network .............................................................................................................. 45

Figure 3-31 π-type network.............................................................................................................. 45

Figure 3-32 Recommended RF PCB design ................................................................................... 46

Figure 3-33 Specifications of MM9329-2700RA1 ............................................................................ 47

Figure 3-34 RF connections............................................................................................................. 47

Figure 3-35 Antenna layout.............................................................................................................. 48

Figure 3-36 Layout around the antenna........................................................................................... 48

Figure 4-1 N77 temperature features............................................................................................... 50

Figure 6-1 N77 dimensions (Unit: mm) ............................................................................................ 54

Figure 6-2 N77 label......................................................................................................................... 55

Figure 7-1 N77 Bottom view of PCB package (Unit: mm)................................................................ 57

Figure 7-2 Recommended footprint of N77 application PCB (Unit: mm)......................................... 58

Figure 7-3 SMT furnace temperature curve..................................................................................... 59

N77 Hardware User Guide

Table of Tables

vii

Table of Tables

Table 1-1 Variant and frequency bands............................................................................................ 10

Table 2-1 IO definition ...................................................................................................................... 14

Table 2-2 Pin description.................................................................................................................. 14

Table 4-1 N77 operating conditions.................................................................................................. 49

Table 4-2 N77 current consumption (Typical) .................................................................................. 49

Table 4-3 N77 ESD protection features ........................................................................................... 50

Table 5-1 N77 operating bands........................................................................................................ 51

Table 5-2 N77 RF TX power and RX sensitivity............................................................................... 52

Table 5-3 GSM RX sensitivity of N77............................................................................................... 52

Table 5-4 WCDMA RX sensitivity of N77 ......................................................................................... 52

Table 5-5 LTE RX sensitivity of N77................................................................................................. 52

N77 Hardware User Guide

About This Document

viii

About This Document

Scope

This document is applicable to N77-CA.

It defines the features, indicators, and test standards of the N77 module and provides reference for the

hardware design of each interface.

Audience

This document is intended for system engineers (SEs), development engineers, and test engineers.

Change History

Issue

Date

Change

Changed By

1.0

2020-09

Initial draft

Xiao Lei

Conventions

Symbol

Indication

This warning symbol means danger. You are in a situation that could cause fatal

device damage or even bodily damage.

Means reader be careful. In this situation, you might perform an action that could

result in module or product damages.

Means note or tips for readers to use the module

N77 Hardware User Guide

About This Document

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