概览
SX1261、SX1262 和 SX1268 sub-GHz 无线电收发器非常适合长距离无线应用。这两款器件均专为实现长电池寿命而设计，仅 4.2 mA 的有源接收会消耗电量。SX1261 的传输功率高达 +15dBm，而 SX1262 和 SX1268 可以通过高效集成功率放大器实现高达 +22dBm 的传输功率。
这些设备支持 LPWAN 用例的 LoRa® 调制和传统用例的 (G)FSK 调制。这些设备具有高度可配置性，能够利用全球 LoRaWAN® 标准或专有协议满足不同的应用要求。
这些器件的设计符合 LoRa Alliance® 发布的 LoRaWAN 规范的物理层要求。
The SX1268 is suitable for systems targeting compliance with Chinese regulatory requirements, and runs in the 410 – 810 MHz range.
功能
- LoRa 和 FSK 调制解调器
- 170dB maximum link budget (SX1262 / 68)
- +22 dBm 或 +15 dBm 高效率 PA
- Low RX current of 4.6 mA
- 集成 DC-DC 转换器和 LDO
- Programmable bit rate up to 62.5kbps LoRa and 300kbps FSK
- 灵敏度高：低至 -148 dBm
- 在 1 MHz 偏置时，可抗 88 dB 干扰
- 在 LoRa 模式下，共信道抑制为 19 dB
- FSK、GFSK、MSK、GMSK 和 LoRa 调制
- 内置位同步器，可用于时钟恢复
- 自动信道活动检测 (CAD) 与超快速 AFC
| 文档 | Release Date | Type |  |
|---|---|---|---|
| SX1268 数据表 | 2025-04-07 | | |
| AN1200.33: Crystal Oscillator Trimming | 2023-10-10 | | |
| AN1200.48: LoRa Channel Activity Detection (CAD) with SX126x | 2023-10-10 | | |
| AN1200.80: LoRa® Modem Doppler Immunity | 2023-10-26 | | |
| AN1200.94: LoRaWAN Theory for One-Channel Hub | 2025-03-07 | | |
| AN1200.96: One-Channel Hub Hardware and Regulatory Aspects | 2025-03-13 | | |
| TN1300.01: How to Qualify a LoRaWAN Device in Europe | 2019-06-05 | | |
| Introduction: SX126x Development Kits Part Numbers | 2021-06-07 | | |
| SX1268DVK1GAS 开发套件 - SX1268MB1GAS 490 MHz 射频模块 | 2024-09-27 | ZIP | |
| One-Channel Hub EVK User Guide | 2025-03-12 | | |
| 涵盖 LoraMac 节点、TTN 和 myDevices 等方面的用户指南 | 2019-06-05 | | |
| 文档 | Release Date | Type | |
|---|---|---|---|
| SWL2001 - LoRa Basics Modem Library | 2024-05-14 | TXT | |
| SWSD003 - Code examples for SX126x and LR11XX | 2024-10-11 | TXT | |
| SX126x driver | 2023-12-14 | TXT | |
| SX1268DVK1xAS Development Kit Firmware | 2019-12-06 | ZIP | |
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