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SimCom SIM800C User Manual
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SIM800C_Hardware_Design_V1.02
1
5
2015-4-27
keep op
en.
Antenna interface
GSM_ANT
32
I/O
Connect GSM antenna
BT_ANT
20
I/O
Connect Bl
uetooth antenna
Synchronizing signal of R
F
RF_SYNC
29
O
Synchronizing signal of RF
3.3.
Package Dimensions
Figure 3: Dimensions of SIM800C (U
nit: mm)
14
16
Table of Contents
Default Chapter
3
Table of Contents
3
Version History
8
1 Introduction
9
2 SIM800C Overview
9
Sim800C
9
SIM800C Key Features
9
Operating Mode
11
Functional Diagram
12
3 Package Information
13
Pin out Diagram
13
Pin Description
13
Package Dimensions
15
4 Application Interface
17
Power Supply
17
Power Supply Pin
18
Monitoring Power Supply
19
Power On/Off SIM800C
19
Power on SIM800C
19
Power off SIM800C
20
Power Saving Mode
22
Minimum Functionality Mode
22
Sleep Mode 1 (AT+CSCLK=1)
22
Wake up SIM800C from Sleep Mode 1
23
Sleep Mode 2 (AT+CSCLK=2)
23
Wake up SIM800C from Sleep Mode 2
23
Power Saving Mode
23
Serial Port and USB Interface
24
Function of Serial Port
25
Serial Interfaces
25
Debug Interface
27
Software Upgrade
28
UART1_RI Behaviors
28
Audio Interfaces
29
Speaker Interfaces Configuration
30
Microphone Interfaces Configuration
30
Audio Electronic Characteristic
30
Tdd
31
SIM Card Interface
31
SIM Card Application
31
SIM Card Design Guide
32
Design Considerations for SIM Card Holder
32
Adc
34
Network Status Indication
35
NETLIGHT Multiplexing Function
35
Operating Status Indication
36
STATUS Multiplexing Function
36
RF Synchronization Signal
36
RF_SYNC Multiplexing Function
36
Antenna Interface
37
GSM Antenna Interface
37
Bluetooth Antenna Interface
38
5 PCB Layout
39
Pin Assignment
39
Principle of PCB Layout
39
Antenna Interface
40
Power Supply
40
SIM Card Interface
40
Audio Interface
40
Others
40
6 Electrical, Reliability and Radio Characteristics
41
Absolute Maximum Ratings
41
Recommended Operating Conditions
41
Digital Interface Characteristics
41
SIM Card Interface Characteristics
41
SIM_VDD Characteristics
42
VDD_EXT Characteristics
42
VRTC Characteristics
42
Current Consumption (VBAT=4.0V)
42
Electro-Static Discharge
43
Radio Characteristics
44
Module RF Output Power
44
Module RF Receive Sensitivity
45
Module Operating Frequencies
45
7 Manufacturing
46
Top and Bottom View of SIM800C
46
Typical Solder Reflow Profile
46
The Moisture Sensitivity Level
47
Baking Requirements
47
8 Appendix
48
Related Documents
48
Multiplexing Function
49
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SimCom SIM800C Specifications
General
Brand
SimCom
Model
SIM800C
Category
Control Unit
Language
English
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