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1. Introduction
1.1 Scope
This document aims at providing complete information on how to use the LR1110 transceiver in an application. It covers
both hardware and software aspects. For a definition of the LR1110 functionalities and circuit specifications, please refer to
the LR1110 Datasheet.
Balun
&
RFIO_HF
Match
RFI_N_LF1
RFI_P_LF1
RFI_N_LF0
RFI_P_LF0
RFO_LP_LF
RFO_HP_LF
VBAT_RF
VR_PA
REG_PA
1.2 Overview
LR1110 is a long range, ultra-low power transceiver aimed to enhance LoRa®-based geolocation applications. It supports
LoRa® and (G)FSK modulations for LPWAN use cases. The device is highly configurable over the 150MHz-960MHz ISM bands
to meet different application requirements utilizing the global LoRaWAN® standard or proprietary protocols.
Besides the world-wide sub-GHz transceiver capabilities, the device feature a very low power multi-band front-end that can
acquire several signals of opportunity for geolocation purposes (802.11b/g/n Wi-Fi AP MAC addresses, GNSS (GPS, BeiDou)
satellites signals). The acquired information is transmitted using a LPWAN network to a geolocation server, which computes
the position of the object.
LR1110
User Manual
Rev.1.0
UM.LR1110.W.APP March 2020
LNA
HF
ADC
LNA
LF1
LNA
LF0
PA
LP LF
PLL
PA
HP LF
PDS
DC-DC
REGs
LDO
Figure 1-1: LR1110 Block Diagram
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LoRa
(G)FSK
modem
modem
BG/IREF
HFXOSC
HFRC
POR/
32MHz
32MHz
BRN
NVM
CPU
ROM
RAM
CKS
LFRC
LFXOSC
32kHz
32kHz
NRESET
DIO0/ BUSY
DIO1
DIO2
DIO3
DIO4
DIO5
DIO6
DIO7
DIO8
DIO9
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