Multitech MultiConnect xDot Developer's Manual page 4

CONTENTS
Measuring the Power Draw ...................................................................................................................................... 24
Pin Information .......................................................................................................................................................... 25
Pin Information ......................................................................................................................................................... 25
Pull-Up/Down............................................................................................................................................................ 27
LoRa........................................................................................................................................................................... 27
Crystals/Oscillator ..................................................................................................................................................... 27
Sleep Wake and Deep Sleep Wake Pins ................................................................................................................... 27
Interrupt Limitations ................................................................................................................................................. 28
xDot Pinout Design Notes ........................................................................................................................................... 29
Serial Pinout Notes.................................................................................................................................................... 29
Serial Settings.............................................................................................................................................................. 29
LoRa ............................................................................................................................................................................ 29
Throughput Rates...................................................................................................................................................... 29
Range ........................................................................................................................................................................ 29
Resetting the xDot ...................................................................................................................................................... 31
Chapter 6 - Antennas ............................................................................................................................................ 32
Antenna System ......................................................................................................................................................... 32
U.FL and Trace Antenna Options ............................................................................................................................... 32
LoRa Antenna .............................................................................................................................................................. 33
LoRa Antenna Specifications .................................................................................................................................... 33
RSMA-to-U.FL Coaxial Cables ..................................................................................................................................... 34
Coaxial Cable Specifications ..................................................................................................................................... 34
Ethertronics Chip Antenna.......................................................................................................................................... 35
Antenna Specifications ............................................................................................................................................. 35
Stackup Information.................................................................................................................................................... 35
Developer Board Layer Stackup................................................................................................................................ 35
Stackup Table ............................................................................................................................................................ 36
Impedance ................................................................................................................................................................ 36
Chip Antenna Design Guidelines................................................................................................................................. 38
Antenna Pad Layout.................................................................................................................................................. 39
PCB Layout ................................................................................................................................................................ 39
Antenna Matching Network........................................................................................................................................ 40
915 ............................................................................................................................................................................ 40
868 ............................................................................................................................................................................ 41
OEM Integration ......................................................................................................................................................... 41
FCC & IC Information to Consumers ......................................................................................................................... 41
FCC Grant Notes........................................................................................................................................................ 41
Host Labeling............................................................................................................................................................... 42
Chapter 7 - Safety Information .............................................................................................................................. 43
Handling Precautions .................................................................................................................................................. 43
Radio Frequency (RF) Safety ....................................................................................................................................... 43
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xDot Developer Guide for Japan