Multitech MultiConnect xDot MTXDOT-NA1 Series Developer's Manual page 4

CONTENTS
Indian Models (MTXDOT-EU1-IN1) ........................................................................................................................... 25
South Korean Models (MTXDOT-KR1) ...................................................................................................................... 26
Asia Pacific Models (MTXDOT-AS1) .......................................................................................................................... 27
Battery Draw Down..................................................................................................................................................... 28
Electrical and Timing Characteristics ........................................................................................................................ 28
Measuring the Power Draw ...................................................................................................................................... 29
Pin Information .......................................................................................................................................................... 30
Pin Information ......................................................................................................................................................... 30
Pull-Up/Down............................................................................................................................................................ 32
LoRa........................................................................................................................................................................... 32
Crystals/Oscillator ..................................................................................................................................................... 32
Sleep Wake and Deep Sleep Wake Pins ................................................................................................................... 32
Interrupt Limitations ................................................................................................................................................. 33
xDot Pinout Design Notes ........................................................................................................................................... 34
Serial Pinout Notes.................................................................................................................................................... 34
Serial Settings.............................................................................................................................................................. 34
LoRa ............................................................................................................................................................................ 34
Throughput Rates...................................................................................................................................................... 34
Range ........................................................................................................................................................................ 34
Resetting the xDot ...................................................................................................................................................... 36
Chapter 6 – Antennas ............................................................................................................................................ 37
Antenna System ......................................................................................................................................................... 37
U.FL and Trace Antenna Options ............................................................................................................................... 37
LoRa Antenna .............................................................................................................................................................. 38
LoRa Antenna Specifications .................................................................................................................................... 38
RSMA-to-U.FL Coaxial Cables ..................................................................................................................................... 39
Coaxial Cable Specifications ..................................................................................................................................... 39
Ethertronics Chip Antenna.......................................................................................................................................... 40
Antenna Specifications ............................................................................................................................................. 40
Stackup Information.................................................................................................................................................... 40
Developer Board Layer Stackup................................................................................................................................ 40
Stackup Table ............................................................................................................................................................ 41
Impedance ................................................................................................................................................................ 41
Chip Antenna Design Guidelines................................................................................................................................. 43
Antenna Pad Layout.................................................................................................................................................. 44
PCB Layout ................................................................................................................................................................ 44
Antenna Matching Network........................................................................................................................................ 45
915 ............................................................................................................................................................................ 45
868 ............................................................................................................................................................................ 46
OEM Integration ......................................................................................................................................................... 46
FCC & IC Information to Consumers ......................................................................................................................... 46
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xDot Developer Guide