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Neoway N21 Series User Manual
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N21
Hardware User Guide
Copyright © Neoway
T
echnology Co., Lt
d.
All right
s reserved.
27
5
RF Features
5.1 Operating Bands
Table 5-1 Op
er
at
in
g
ba
nd
s
of
N
21
Operating Band
Uplink
Downlink
FDD-LTE B3
1710~1785MHz
1805~1880MHz
FDD-LTE B5
824~849MHz
869~894MHz
FDD-LTE B8
880~915MHz
925~960MHz
FDD-LTE B20
832~862MHz
791~821MHz
FDD-LTE B28
703~748MHz
758~803MHz
5.2 TX Power and RX Sensitivity
Table 5-2 RF
TX
p
ow
er
o
f
N2
1
Band
Max Power
Min. Power
HD
-FDD LTE B3
23dBm+2/-2dBm
<-40 dBm
HD
-FDD LTE B5
23dBm+2/-2dBm
<-40 dBm
HD
-FDD LTE B8
23dBm+2/-2dBm
<-40 dBm
HD
-FDD LTE B20
23dBm+2/-2dBm
<-40 dBm
HD
-FDD LTE B28
23dBm+2/-2dBm
<-40 dBm
Table 5-3 RX
s
en
si
ti
vi
ty
o
f
N2
1
Ca
t
NB
1
Band
Sensitivity
Duplex Mode
LTE B3, B5, B8, B20, B28
≤
-
113
dBm
HD
-FDD
35
37
Table of Contents
Table of Contents
3
About this Document
8
Scope
8
Audience
8
Revision History
8
Symbols and Conventions
9
Related Documents
9
About N21
10
Product Overview
10
Block Diagram
10
Table 1-1 Variants and Bands
10
Basic Features
11
Figure 1-1 Block Diagram
11
Module Pins
13
Pad Layout
13
Figure 2-1 Pin Definition of N21
13
Pin Description
14
Table 2-1 IO Definition
14
Table 2-2 Pin Description
14
Application Interfaces
16
Power Supply
16
Vbat
16
Figure 3-1 Recommended Circuit Design 1
17
Figure 3-2 Recommended Schematic Design 2
18
Vddio_2P8
19
Control Interfaces
19
Pwrkey_N
19
Figure 3-3 Reference Design of Startup Controlled by Button
20
Figure 3-4 Reference Design of Startup Controlled by MCU
20
Figure 3-5 Reference Design of Automatic Start Once Powered up
20
Figure 3-6 Startup Timing
21
Reset_N
22
Figure 3-7 Shutdown Timing
22
Figure 3-8 Reset Controlled by Button
22
Peripheral Interfaces
23
Figure 3-9 Reset Circuit with Triode Separating
23
Figure 3-10 Reset Timing of N21
23
Uart
24
Figure 3-11 UART Connection
24
Figure 3-12 Recommended Level Shifting Circuit 1
25
Figure 3-13 Recommended Level Shifting Circuit 2
25
Usim
27
Figure 3-14 Recommended Level Shifting Circuit 3
27
Figure 3-15 Reference Design of USIM Card Interface
28
RF Interface
29
Antenna Design
29
Figure 3-16 L Network
29
Figure 3-17 T Network
29
Figure 3-18 Pi Network
30
Figure 3-19 Recommended RF PCB Design
30
Antenna Assembling
31
Figure 3-20 Specifications of MM9329-2700RA1
31
Figure 3-21 RF Connections
31
Other Interfaces
32
Wakeup
32
Net_Light
32
Figure 3-22 Reference Design of WAKEUP
32
Figure 3-23 Driving LED Directly
32
Status
33
Figure 3-24 Driving LED with a Triode
33
Electric Feature and Reliability
34
Nominal Values
34
Current Features
34
Table 4-1 Operating Conditions of N21
34
Table 4-2 Current Consumption of N21 (Typical)
34
Temperature Feature
35
ESD Protection
35
Table 4-3 Temperature Features of N21
35
Table 4-4 N21 ESD Protection
35
RF Features
36
Operating Bands
36
TX Power and RX Sensitivity
36
Table 5-1 Operating Bands of N21
36
Table 5-2 RF TX Power of N21
36
Table 5-3 RX Sensitivity of N21 Cat NB1
36
Mechanical Features
37
Dimensions
37
Label
37
Figure 6-1 N21 Dimensions (Unit: MM)
37
Package
38
Mounting N21 Onto Application Board
40
Bottom Dimensions
40
Application Foot Print
41
Stencil
41
Solder Paste
41
SMT Profile
42
Safety Recommendations
43
A Conformity and Compliance
44
Approvals
44
Chinese Notice
44
CCC Class a Digital Device Notice
44
Environmental Protection Notice
44
American Notice
44
Modify
45
FCC Class a Digital Device Notice
45
FCC Class B Digital Device Notice
45
B Abbreviation
46
4
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Neoway N21 Series Specifications
General
Brand
Neoway
Model
N21 Series
Category
Control Unit
Language
English
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