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Chengdu Ebyte Electronic Technology Co., Ltd.                                                                                                                                     E19 -868M20S  User Manual 

 

Copyright ©2012–2018

Chengdu Ebyte Electronic  Technology Co.,Ltd.

                                                                                                                       

      3 

                                                                                                                                                           

 

2.Specification and parameter 

2.1 Limit parameter 

Main  parameter 

Performance 

Remark 

Min. 

Max. 

Power supply

V

 

3.6 

Voltage  over 3.6V  will cause permanent damage  to module 

Blocking  power

dBm

 

10 

Chances of burn is slim when modules are used in short distance 

Operating temperature

 

-40 

85 

 

2.2 Operating parameter 

Main  parameter 

Performance 

Remark 

Min. 

Typ. 

Max. 

Operating voltage

V

 

1.8 

3.3 

3.6 

≥3.3V ensures output power 

Communication level

V

 

3.3 

-

 

 

For 5V TTL, it may be at risk of burning down   

Operating temperature

 

-40 

85 

Industrial design 

Operating frequency

M Hz

 

862 

868 

893 

Support ISM  band 

Power 

consumpti

on 

TX current

mA

 

-

 

 

630 

-

 

 

Instant power consumption 

RX current

mA

 

14 

-

 

 

Sleep current 

μA

 

-

 

 

1.0 

-

 

 

Software is shut down 

M ax Tx power

dBm

 

19 

20 

21 

-

 

 

Receiving  sensitivity

dBm

 

-145 

-147 

-148 

Sensitivity test conditions

 

air data rate: 0.3 kbps, Coding rate 4/5, Spread Spectrum 

Factor 12. 

Air data rate

bps

 

1.2 

300 

Kbps 

FSK 

0.018 

37.5 

Kbps 

Lora

TM 

 

Main  parameter 

Description 

Remark 

Distance for reference 

5000m 

Test condition

clear  and open area, antenna gain:  5dBi

antenna 

height: 2.5m

air data rate: 0.3kbps 

FIFO 

256Byte 

M ax length transmitted each time 

Crystal frequency  

32M Hz 

M odulation 

LoRa

TM

 (recommended)   

FSK/GFSK/MSK/GMSK/OOK 

Package 

SM D 

Connector 

1.27mm 

Communication interface 

SPI 

0-10M bps 

Size 

17.6*25.2 mm 

Antenna 

Stamp hole 

50 ohm impedance 

Содержание E19-868M20S

Страница 1: ...E19 868M20S User Manual SX1276 868MHz 100mW SMD Wireless Module...

Страница 2: ...Operating parameter 3 3 Size and pin definition 4 4 Basic operation 5 4 1 Hardware design 5 4 2 Software editing 6 5 Basic application 6 5 1 Basic circuit diagram 6 6 FAQ 7 6 1 Communication range is...

Страница 3: ...certification reports users do not need to worry about its performance High precision 32MHz crystal is used Since the module is a pure RF transceiver module you need to use the MCU driver or a dedica...

Страница 4: ...temperature 40 85 Industrial design Operating frequency MHz 862 868 893 Support ISM band Power consumpti on TX current mA 630 Instant power consumption RX current mA 14 Sleep current A 1 0 Software is...

Страница 5: ...SX1278 datasheet 4 DIO3 Input Output Configurable IO port Pleasefind more on SX1278 datasheet 5 DIO2 Input Output Configurable IO port Pleasefind more on SX1278 datasheet 6 DIO1 Input Output Configura...

Страница 6: ...be as far away as possible from the power supply transformers high frequency wiring and other parts with large electromagnetic interference High frequency digital routing high frequency analog routin...

Страница 7: ...an refer to SX1278 SX1276 datasheet DIO0 DIO1 DIO2 DIO3 DIO4 DIO5 are configurable I O ports for various application see more in SX1276 datasheet It can be floated when not used RST TXEN RXEN must be...

Страница 8: ...2 5V the lower the voltage the lower the transmitting power Due to antenna quality or poor matching between antenna and module 6 2 Module is easy to damage Please check the power supply source ensure...

Страница 9: ...preheating temp 150 200 Preheat Time Tsmin to Tsmax ts Preheating time 60 120 sec 60 120 sec Average ramp up rate Tsmax to Tp Average ramp up rate 3 second max 3 second max Liquidous Temperature TL L...

Страница 10: ...5 37 Stamp hole E19 915M20S SX1276 915M 20 5 SMD 17 6 25 2 Stamp hole E19 433M20SC SX1278 433M 20 5 SMD 17 6 25 2 Stamp hole 9 Antenna guidance 9 1 Antenna recommendation The antenna is an important r...

Страница 11: ...itial version huaa 1 10 2018 5 23 Content updated huaa 1 20 2018 9 21 ModelNo split Huaa About us Technical support support cdebyte com Documents and RF Setting download link www ebyte com Thank you f...

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