Semtech LoRa® Plus™ LR2021 RF Transceiver
Semtech LoRa® Plus™ LR2021 RF Transceiver is a fourth-generation LoRa IP for the LoRa Plus family. The transceiver supports Terrestrial and SATCOM networks in the Sub-GHz, 2.4GHz ISM bands, and licensed S-Band. The LR2021 is developed to be backward compatible with previous LoRa devices, securing seamless LoRaWAN® compatibility. The device additionally features expanded physical layer modulations for fast, long-range communication (FLRC). It is compatible with various low-power wireless protocols, including Amazon Sidewalk, Meshtastic, W-MBUS, Wi-SUN FSK, and Z-Wave, when integrated with third-party stack offerings. The LR2021 features an advanced RF and analog architecture that supports a multi-region, single-SKU design, decreasing external BOM costs, PCB footprint, and power consumption while delivering superior performance to previous LoRa transceivers.Features
- 150MHz to 960MHz bands
- 1.6GHz to 2.5GHz bands
- FLRC up to 2.6Mbps
- LoRa up to 200kbps
- LR-FHSS for SATCOM
- SPI Interface
- 5mm x 5mm QFN package
Applications
- Security and building automation
- Smart city and logistics
- Smart utility
- Smart home
- Industrial automation
- Smart agriculture
Specifications
- LoRa/LoRaWAN at Sub-GHz and 2.4GHz
- Sidewalk FSK/CSS PHY
- Sigfox PHY
- Wi-SUN FSK PHY
- W-MBUS PHY (device and collector)
- 4-FSK PHY
- Z-Wave PHY, Z-Wave LR PHY
- 802.15.4 Thread and Zigbee® PHY
- BLUETOOTH® LE 5.4 PHY compatibility
- Transmitter (Tx) Performance
- +22dBm to -10dBm in 0.5dB steps
- +12dBm output at 2.4GHz
- -40°C to +85°C, 1.8V to 3 .7V supply
- Receiver (Rx) performance
- -142dBm at LoRa 125kHz sub-GHz
- -111dBm at 100kbps DSSS O-QPSK
- -111dBm at FLRC 260kbps sub-GHz
- -105dBm at FLRC 1Mbps, -101Mbps at 2.6Mbps
- -103dBm at 802.15.4 DSSS O-QPSK 250kbps
- -100dBm at GMSK 1Mbps, -97Mbps at 2Mbps
- Low current consumption
- Rx current 5mA to 6mA at sub-GHz
- Tx current 110mA at +22dBm, 27mA at 14dBm, 14mA at 10dBm sub-GHz
- Low sleep current 500nA
Videos
Functional Block Diagram
System Block Diagram
Yayınlandı: 2025-03-13
| Güncellenmiş: 2025-10-30
