Reference designs offer LoRa gateway solutions
LoRa Corecell full-duplex gateway reference designs from Semtech are tailored to address applications operating in the U.S. 915-MHz and China 490-MHz ISM bands. Both the SX1302CFD915W1-H (915-MHz) and SX1302CFD490GW1 (490-MHz) reference designs leverage Semtech’s LoRa Core SX1302 digital baseband IC and SX1255/7 RF transceiver.
The reference design files are available to download from the Semtech website. While evaluation kits are not offered for purchase, the hardware used in the design comprises a Corecell board populated with the LoRa Core chips, a duplexer, and a Raspberry Pi. The design supports full-duplex operation with eight uplink channels and one downlink channel.
Using the capabilities of the SX1302 baseband IC, the uplink channels can detect up to 64 LoRa packets and simultaneously demodulate 16 125-kHz LoRa packets with spreading factors between SF5 and SF12. The SX1302 also provides one 125/250/500-kHz demodulator for single SF operation and one (G)FSK demodulator for legacy applications.
The gateway implementation achieves a tenfold reduction in power compared to the previous generation of LoRa baseband ICs. With a discrete power amplifier and low-noise amplifier, transmit output power at the antenna port can be up to +27 dBm. Receive sensitivity can be as low as -140.8 dBm for the U.S. 915-MHz band and -137.4 dBm for the China 490-MHz band.
To learn more about the LoRa Corecell full-duplex gateway reference designs, read Semtech’s blog here.
SX1302CFD915GW1-H product page
Find more datasheets on products like this one at Datasheets.com, searchable by category, part #, description, manufacturer, and more.
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