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Neo_M680
Neoway Neo_M680 Manuals
Manuals and User Guides for Neoway Neo_M680. We have
1
Neoway Neo_M680 manual available for free PDF download: Hardware User's Manual
Neoway Neo_M680 Hardware User's Manual (43 pages)
GPRS Module
Brand:
Neoway
| Category:
Control Unit
| Size: 1 MB
Table of Contents
Table of Contents
4
About this Document
8
Block Diagram
8
Overview
8
Specifications
9
Table 1-1 M680 Specifications
9
1 Introduction to M680
8
2 Pin Description and PCB Foot Print
11
Specifications and Encapsulation
11
Figure 2-1 Top View of the M680 Module
11
Pin Definition
12
Table 2-1 M680 Pin Definition
12
PCB Foot Print
15
Figure 2-2 PCB Foot Print Recommended for M680 (Unit: MM)
15
3 Interface Design
16
Power Supply and Switch Interfaces
16
Design Requirements
16
Figure 3-1 Current Peaks and Voltage Drops
16
Table 3-1 Power Supply and Switch Interface
16
Figure 3-2 Capacitors Used for the Power Supply
17
Figure 3-3 Reference Design of Power Supply Control
17
Figure 3-4 Reference Design of Power Supply Controlled by P-MOSFET
18
Vdd_Ext
19
Vrtc
19
Figure 3-5 Reference Designs of Separated Power Supply
19
Power-On/Off Control and Procedure
20
Figure 3-6 VRTC Reference Design
20
Figure 3-7 Power-On Procedure
20
Figure 3-8 Power-Off Procedure
21
Figure 3-9 Reference Circuit for Power-On/Off Control
21
Figure 3-10 Reference Circuit for Power-On/Off Controlled by High Level
22
Reset
23
Uart
23
Figure 3-11 Reset Circuit with Triode Separating
23
Figure 3-12 Signal Connection between DCE and DTE
23
Table 3-2 UART
23
Figure 3-13 Recommended Circuit for the Communication between 3.3V MCU and UART
24
USB Interfaces
25
Figure 3-14 Recommended Circuit for the Communication between 5V MCU and UART
25
Table 3-3 USB Interface
25
DTR and RING
26
DTR Pin
26
Figure 3-15 USB Circuit
26
Table 3-4 DTR and RING Pins
26
RING Signal Indicator
27
SIM Card Interface
27
Figure 3-16 RING Indicator for Incoming Call
27
Figure 3-17 RING Indicator for SMS
27
Table 3-5 SIM Card Interface
27
Figure 3-18 Reference Design of SIM Card Interface
28
Figure 3-19 Reference of SIM Card Socket
28
Running LED Indicator
29
Figure 3-20 LED Indicator
29
Table 3-6 LED Indicator
29
Audio Interface
30
Figure 3-21 Reference Design of Single-End Input MIC Interface
30
Table 3-7 Audio Interface
30
Figure 3-22 Reference Design of MIC Differential Connections
31
Figure 3-23 Reference Design for Common Audio Input
31
Figure 3-24 Reference Design for Receiver Output
32
Figure 3-25 Reference Design for Speaker Output
32
RF Interface
33
RF Design and PCB Layout
33
Figure 3-26 Reference Design for Earphone Output
33
Figure 3-27 Coupling Capacitor Interfacing
33
Figure 3-28 Reference Design for Antenna Interface
34
Figure 3-29 RF Layout Reference
34
Recommended RF Connection
35
Figure 3-30 Encapsulation Specifications of Murata RF Connector
35
Figure 3-31 RF Connections
35
4 Electric Features and Reliability
36
Electric Feature
36
Temperature
36
Table 4-1 Electric Feature of the Module
36
Table 4-2 Temperature Feature
36
Current
37
ESD Protection
37
Table 4-3 Current Feature
37
Table 4-4 ESD Feature of the Module
38
5 RF Features
39
Work Band
39
Transmitting Power and Receiving Sensitivity
39
Transmitting Power
39
Table 5-1 Work Band
39
Table 5-2 Transmitting Power (GSM800&EGSM900)
39
Receiving Sensitivity
40
Table 5-3 Transmitting Power (DCS1800&PCS1900)
40
6 Mounting the Module Onto the Application Board
41
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