SX127X RF Module
User Manual of E19 Series Modules
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd
2
Contents
GENERAL INTRODUCTION.......................................................................................................................................................... 2
1. TECHNICAL PARAMETERS...................................................................................................................................................... 4
1.1. G
ENERAL PARAMETERS
............................................................................................................................................................. 4
1.2. E
LECTRICAL PARAMETERS
........................................................................................................................................................ 4
1.2.1 Transmitting current
...............................................................................................................................................................4
1.2.2 Receiving current
................................................................................................................................................................... 4
1.2.3 Turn-off current
......................................................................................................................................................................4
1.2.4 Supply voltage
........................................................................................................................................................................5
1.2.5 Communication level
............................................................................................................................................................. 5
1.3. RF
PARAMETERS
........................................................................................................................................................................ 5
1.3.1 Transmitting Power
................................................................................................................................................................5
1.3.2 Receiving sensitivity
..............................................................................................................................................................5
1.3.3 Recommended Frequency
......................................................................................................................................................6
1.4. T
ESTED PARAMETERS
................................................................................................................................................................. 6
1.4.1 Tested distance
....................................................................................................................................................................... 6
2. MECHANICAL PROPERTIES.................................................................................................................................................... 7
2.1. E19 (433M20SC)/ E19 (868M20S)/ E19 (915M20S)
...............................................................................................................7
2.1.1 Dimensions.............................................................................................................................................................................7
2.1.2 Pin definition
..........................................................................................................................................................................7
2.2. E19 (433M30S)/ E19 (868M30S)/ E19 (915M30S)
................................................................................................................. 8
2.2.1 Dimensions.............................................................................................................................................................................8
2.2.2 Pin definition
..........................................................................................................................................................................8
2.3. E19 (433M20S2)
........................................................................................................................................................................ 9
2.3.1 Dimensions.............................................................................................................................................................................9
2.3.2 Pin definition
..........................................................................................................................................................................9
3. RECOMMENDED CIRCUIT DIAGRAM................................................................................................................................ 10
3.1. E19 (433M20S2)
...................................................................................................................................................................... 10
4. REMARK.......................................................................................................................................................................................11
5. PRODUCTION GUIDANCE.......................................................................................................................................................11
5.1. R
EFLOW
T
EMPERATURE
...........................................................................................................................................................11
5.2. R
EFLOW
G
RAPH
.......................................................................................................................................................................12
6. FAQ................................................................................................................................................................................................ 12
6.1. T
HE COMMUNICATION DISTANCE IS TOO CLOSE
.................................................................................................................... 12
6.2. T
HE MODULE CAN BE DAMAGED EASILY
................................................................................................................................ 12
7. IMPORTANT STATEMENT.......................................................................................................................................................13
8. ABOUT US.....................................................................................................................................................................................13
