Datasheet

SX1302
Datasheet Rev 1.0
DS.SX1302.W.APP June 2019
7 of 31
www.semtech.com
1. Introduction
The SX1302 is a digital baseband engine, capable of detecting and demodulating large amounts of LoRa® packets expected
in the IOT networks.
1.1 RF Front End Interface
The SX1302 is intended to be used with various RF Front End chips (RF to IQ), such as Semtech’s SX1255/57. Details on the
interface and compatibility is available on Section 4. "RF Front End Interface" on page 16 .
1.2 Power Distribution
The SX1302 is supplied on two different domains, 1.2 V for the core of the baseband processing, and 3 to 3.6V for the host
and RF interface. For details, see Section 5. "Power Distribution" on page 18 .
1.3 Clocking
SX1302 clocking is achieved from a single clock source. Details are found in Section 6. "Clocking" on page 19 .
1.4 Detection Engine and Modems
The SX1302 can detect at any time, any packet in a combination of 8 different spreading factors (SF5 to SF12) and 10
channels, and demodulate up to 16 packets at any time. Details on the modems and their assignment are found in
Section 7. "Detection Engine - Modems" on page 20 .
1.5 Digital Interface and Control
The SPI interface of the SX1302 to its host controller is detailed in Section 8. "Digital Interface and Control" on page 21 .
1.6 Application Programming Interface
An example API is made available as source code with the HAL library and the Packet Forwarder example software. Details
are available in Section 9. "Application Programming Interface" on page 23 .
1.7 Application Information
Semtech has designed, validated, and released multiple reference design with the SX1302. The performance tabulated in
this document is obtained on the said reference design. Details of the Core Cell reference design are posted in Section 10.
"Application Information" on page 24 .