User's Manual

SX127X RF Module User Manual of E19 Series Modules
Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co.,Ltd
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Contents
GENERAL INTRODUCTION ................................................................................................................................................................ 1
1. TECHNICAL PARAMETERS ...................................................................................................................................................... 3
1.1 GENERAL PARAMETERS ......................................................................................................................................................................................... 3
1.2 ELECTRICAL PARAMETERS ..................................................................................................................................................................................... 3
1.2.1 Transmitting current ................................................................................................................................................................................ 3
1.2.2 Receiving current ...................................................................................................................................................................................... 3
1.2.3 Turn-off current ........................................................................................................................................................................................ 3
1.2.4 Supply voltage ........................................................................................................................................................................................... 3
1.2.5 Communication level ............................................................................................................................................................................... 4
1.3 RF PARAMETERS ................................................................................................................................................................................................... 4
1.3.1 Transmitting Power .................................................................................................................................................................................. 4
1.3.2 Receiving sensitivity ................................................................................................................................................................................. 4
1.3.3 Recommended Frequency ..................................................................................................................................................................... 4
1.4 TESTED DISTANCE ................................................................................................................................................................................................. 5
2. PIN DEFINITION ................................................................................................................................................................................. 5
3.USAGE ..................................................................................................................................................................................................... 6
4. REMARK .......................................................................................................................................................................................... 6
5. PRODUCTION GUIDANCE .............................................................................................................................................................. 7
5.1 REFLOW TEMPERATURE ........................................................................................................................................................................................ 7
5.2 REFLOW GRAPH .................................................................................................................................................................................................... 7
6. FAQ .......................................................................................................................................................................................................... 7
6.1 THE COMMUNICATION DISTANCE IS TOO CLOSE ................................................................................................................................................ 7
6.2 THE MODULE CAN BE DAMAGED EASILY .............................................................................................................................................................. 8
7. IMPORTANT STATEMENT .............................................................................................................................................................. 8
8.ABOUT US .............................................................................................................................................................................................. 9