SX1302IMLTRT

Overview

The Semtech SX1302IMLTRT is a LoRa Gateway Baseband Transceiver designed for next-generation gateways. It features an 8x8 channel LoRa packet detector and demodulators supporting SF5-SF12. The device operates on a single 32MHz clock with SPI interface in a QFN-68 package (7mm x 7mm). Electrical parameters include a supply voltage range of 1.1V to 1.3V, receiving current of 3.2mA, and transmission current of 7.2mA. Maximum data rate is 50 kb/s. Operating temperature spans -40°C to +85°C.

Feature Summary

• Supports up to eight simultaneous LoRa channels with dedicated packet detection and demodulation capabilities.
• Provides direct digital interface compatibility with Semtech SX1250, SX1255, SX1257, and SX1258 transceivers.
• Integrates GFSK demodulation alongside standard LoRa processing within a unified baseband architecture.

Applications

• LoRaWAN network gateway baseband processing
• Full duplex gateway applications
• Listen Before Talk (LBT) and spectral scan implementations

Procurement Notes

Verify the specific ordering suffix LTRT corresponds to the required tape and reel packaging configuration for automated assembly lines. Confirm that the QFN-68 thermal pad requirements align with the target PCB layout design. Ensure the SPI interface timing specifications meet the system controller's maximum clock frequency constraints before finalizing the bill of materials.

Selection Notes

Select this component when designing gateways requiring high traffic handling capacity with reduced power consumption compared to previous generations. The integrated baseband solution simplifies thermal management and reduces overall material costs. Ensure the application utilizes compatible Semtech front-end transceivers to leverage the direct interface capabilities effectively.

Part Context

This part belongs to the SX1302 series, representing a new generation of LoRa Core digital baseband chips. It succeeds earlier gateway baseband devices by offering improved efficiency and higher throughput. The series focuses on optimizing gateway performance through integrated signal processing and simplified hardware interfaces.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing gateway reference designs before attempting any cross-referencing or substitution strategies.