Semtech

LR1121IMLTRT

RF & Wireless (Chips & Antennas)

Manufacturer
MPN
LR1121IMLTRT
Package / Case
QFN-32-EP(5x5)
Key Attributes
Long Range, Low Power, Multi-band LoRa Transceiver

Technical Specifications

TypeDescription
Data Rate101.5 kbps
Sensitivity-108dBm
ApplicationsLoRa
Frequency Range150MHz~960MHz;1.9GHz~2.1GHz;2.4GHz~2.5GHz
Interface TypeSPI
Receive Current7.8mA
Output Power13dBm
TypeDescription
Current Of Transmitting26mA
Operating Temperature-40°C~+85°C
Supply Voltage1.8V~3.7V
FeaturesPower-on reset function;Power-off reset function
Typetransceiver
Package / CaseQFN-32-EP(5x5)

Product Introduction

The LR1121 is an ultra-low power, long range LoRa transceiver that provides support for terrestrial ISM band communications in the sub-GHz and global 2.4GHz spectrum, as well as S-Band support for satellite connectivity.

The transceiver is suitable for systems targeting compliance with radio standards including but not limited to ETSI EN 300 220, FCC CFR 47 Part 15, ARIB, and Chinese regulatory requirements.

For LPWAN use cases, the LR1121 supports LoRa and (G)FSK modulation on both sub-GHz and 2.4GHz bands, as well as Sigfox modulation on sub-GHz bands, and Long Range Frequency Hopping Spread Spectrum (LR-FHSS) on sub-GHz, 1.9 - 2.1GHz Satellite, and 2.4GHz ISM bands.

The LR1121 complies with the physical layer requirements of the LoRaWAN specification released by LoRa Alliance, while remaining highly configurable to meet different application requirements and proprietary protocols.

Features

  • Worldwide frequency bands support in the range 150 - 960MHz (sub-GHz), 1.9 - 2.1GHz S-band and 2.4GHz ISM band.
  • Low Noise Figure modes for enhanced LoRa/ (G) FSK sensitivity (differential input pins RFI_P/N_LF0)
  • High power PA path +22 dBm (pin RFO_HP_LF) and High efficiency PA path +15dBm (pin RFO_LP_LF) for sub-GHz
  • High frequency PA path +13dBm (pin RFIO_HF) for 2.4GHz ISM band and S-band, matched to 50Ohm impedance, reducing the overall Bill Of Materials cost
  • Integrated PA regulator supply selector to simplify dual power +15/+22dBm with a single board implementation
  • Able to support world-wide multi-region BOM, the circuit adapts to satisfy regulatory limits

Datasheet

📄 Open Download

Compliance & Export Codes

TypeDetails
RoHSROHS3
ECCN5A992C
CNHTS8542399000
USHTS8542390001
TARIC8542399000
TypeDetails
CAHTS8542390000
BRHTS85423999
INHTS85423900
MXHTS8542.39.99

Sourcing Information

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