LR1110
User Manual Rev.1.0
UM.LR1110.W.APP March 2020
4 of 130
Semtech
www.semtech.com
8.3.7 GetPacketStatus................................................................................................................... 59
8.4 (G)FSK Modem Description .......................................................................................................... 59
8.4.1 (G)FSK Modulation Principle ........................................................................................... 59
8.4.2 (G)FSK Packet Engine......................................................................................................... 60
8.4.3 (G)FSK Packet Format......................................................................................................... 60
8.5 (G)FSK Commands .......................................................................................................................... 62
8.5.1 SetModulationParam......................................................................................................... 62
8.5.2 SetPacketParam................................................................................................................... 64
8.5.3 SetGfskSyncWord................................................................................................................ 66
8.5.4 SetPacketAdrs....................................................................................................................... 66
8.5.5 SetGfskCrcParams ............................................................................................................... 66
8.5.6 SetGfskWhitParams ............................................................................................................ 67
8.6 Data Buffer ......................................................................................................................................... 67
8.6.1 Data Buffer in Receive Mode........................................................................................... 67
8.6.2 Data Buffer in Transmit Mode......................................................................................... 69
8.7 RSSI Functionality ............................................................................................................................ 69
9. Power Amplifiers........................................................................................................................................... 71
9.1 PA Supply Scheme .......................................................................................................................... 72
9.1.1 Low Power PA....................................................................................................................... 73
9.1.2 High Power PA...................................................................................................................... 73
9.2 PA Output Power ............................................................................................................................. 74
9.2.1 Low Power PA....................................................................................................................... 74
9.2.2 High Power PA...................................................................................................................... 75
9.3 PA Current Consumption ............................................................................................................. 76
9.3.1 Low Power PA....................................................................................................................... 76
9.3.2 High Power PA...................................................................................................................... 78
9.4 Impedance Matching Networks ................................................................................................. 80
9.4.1 Multi-Band Operation........................................................................................................ 80
9.4.2 RF Switch Implementation............................................................................................... 80
9.4.3 Direct-Tie Implementation .............................................................................................. 81
9.5 Commands ......................................................................................................................................... 82
9.5.1 SetPaConfig........................................................................................................................... 82
9.5.2 SetTxParams.......................................................................................................................... 82
10. Wi-Fi Passive Scanning............................................................................................................................. 84
10.1 Principle Of Operation ................................................................................................................ 84
10.2 WifiScan ........................................................................................................................................... 85
10.3 Wi-Fi Passive Scanning Results ................................................................................................ 86
10.3.1 Wi-Fi Passive Scanning Result Formats..................................................................... 86
10.3.2 Basic Result Format.......................................................................................................... 87
10.3.3 Full Result Format............................................................................................................. 87
10.3.4 WifiGetNbResults.............................................................................................................. 91
10.3.5 WifiReadResults................................................................................................................. 91
10.3.6 WifiResetCumulTimings................................................................................................. 92
10.3.7 WifiReadCumulTimings.................................................................................................. 92
11. GNSS Scanning............................................................................................................................................ 94
11.1 GNSS Geolocation System Overview ..................................................................................... 94
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