SIM800L datasheet(4/73 Pages) SIMCOM

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SIM800L Fiches technique(PDF) 4 Page - SIMCom

No de pièce	SIM800L

Description	Hardware Design_V2.02

Download	73 Pages

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Fabricant	SIMCOM [SIMCom]

Site Internet	https://www.simcom.com

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SIM800L Fiches technique(HTML) 4 Page - SIMCom

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Smart Machine Smart Decision

SIM800H&SIM800L_Hardware Design_V2.02

2015-07-27

4.7.1.

Speaker Interfaces Configuration........................................................................................................ 36

4.7.2.

Microphone Interfaces Configuration ................................................................................................. 36

4.7.3.

Audio Electronic Characteristic .......................................................................................................... 37

4.7.4.

TDD .................................................................................................................................................... 37

4.8.

SIM Card Interface..............................................................................................................38

4.8.1.

SIM Card Application ......................................................................................................................... 38

4.8.2.

SIM Card Design Guide...................................................................................................................... 39

4.8.3.

Design Considerations for SIM Card Holder ...................................................................................... 39

4.9.

PCM Interface.....................................................................................................................42

4.9.1.

PCM Multiplexing Function ............................................................................................................... 42

4.9.2.

PCM Interface ..................................................................................................................................... 43

4.9.3.

LCD Display/SPI Interface ................................................................................................................. 43

4.9.4.

SD Card Interface................................................................................................................................ 43

4.10. Keypad Interface.................................................................................................................44

4.10.1.

Keypad Multiplexing Function........................................................................................................ 46

4.11. I2C Bus ...............................................................................................................................46

4.11.1.

I2C Multiplexing Function .............................................................................................................. 47

4.12. General Purpose Input/Output (GPIO) ...............................................................................47

4.13. ADC ....................................................................................................................................47

4.14. PWM ...................................................................................................................................48

4.14.1.

PWM Multiplexing Function........................................................................................................... 49

4.15. Network Status Indication...................................................................................................49

4.15.1.

NETLIGHT Multiplexing Function................................................................................................. 50

4.16. Operating Status Indication.................................................................................................50

4.16.1.

STATUS Multiplexing Function ...................................................................................................... 50

4.17. LED Interface......................................................................................................................50

4.18. RF Synchronization Signal .................................................................................................51

4.18.1.

RF_SYNC Multiplexing Function................................................................................................... 52

4.19. Antenna Interface................................................................................................................52

4.19.1.

GSM Antenna Interface ................................................................................................................... 52

4.19.2.

Bluetooth Antenna Interface (Only SIM800H)................................................................................ 53

4.19.3.

FM Antenna Interface ...................................................................................................................... 53

PCB Layout ........................................................................................................ 55

5.1

Pin Assignment ...................................................................................................................55

5.2

Principle of PCB Layout .....................................................................................................56

5.2.1

Antenna Interface ................................................................................................................................ 56

5.2.2.

Power Supply ...................................................................................................................................... 56

5.2.3

SIM Card Interface.............................................................................................................................. 56

5.2.4

Audio Interface.................................................................................................................................... 56

5.2.5

Others .................................................................................................................................................. 56

5.3

Recommended PCB Layout................................................................................................57

Electrical, Reliability and Radio Characteristics ........................................... 58

6.1

Absolute Maximum Ratings ...............................................................................................58

6.2

Recommended Operating Conditions .................................................................................58

6.3

Digital Interface Characteristics..........................................................................................58

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