SX1303 LoRa Gateway Baseband Processor W/ , Z >Z W/ & y y W , >Z D, >Z , W , y y & <>Z d W/ Figure A: Block Diagram General Description Key Features The SX1303 is a new generation of baseband LoRa chip for Fine timestamp gateways. It excels in reducing current consumption, LoRaWAN, Class A/B/C, all regions simplifies the thermal design of gateways, and reduces the Multi-SF 125 kHz LoRa reception with Fine Timestamp Bill Of Materials costs, yet it is capable of handling a higher High-speed 250 / 500 kHz LoRa demodulator amount of traffic than preceding devices. (G)FSK demodulator The high-speed baseband digital engines are clocked from Direct interface to Semtech transceivers a single 32 MHz clock source, and the chip embeds the SX1255, SX1257 and SX1250 capability to support SF5 and SF6 unlike previous generations. The architecture has been reworked to reduce Single 32 MHz clock power consumption very significantly it makes it easier to embed the SX1303 in highly-integrated environments Ordering Information where power dissipation might be a challenge. The SX1303 supports Fine Timestamp capability, when Part Number Delivery Order Quantity network-based geo-location is required. SX1303IMLTRT Tape and Reel 3000 The SX1303 is also serialized in production, with a globally unique 64-bit number. QFN68 Package, operating range from -40 to +85C Pb-free, Halogen free, RoHS/WEEE compliant product SX1303 1 of 31 www.semtech.com Datasheet Rev 1.2 DS.SX1303.W.APP Oct 2020 Z& & y & < yRevision History Version ECO Date Modifications Rev 1.0 ECO-051672 April 2020 First Release Rev 1.1 ECO-053422 September 2020 Edit the link to the HAL/Packet Forwarder repository Rev 1.2 ECO-053763 October 2020 Update title to LoRa Gateway Baseband Processor SX1303 2 of 31 www.semtech.com Datasheet Rev 1.2 DS.SX1303.W.APP Oct 2020