- 主页
- 产品
- 无线射频
- Frequency Shift Keying (FSK)
- SX1231J
概览
SX1231J 是一款符合 ARIB 标准的高度集成射频收发器芯片,可在所有日本 sub-GHz 频段上运行。它具备高度集成的数字架构,最大限度地减少了外部组件,并为优化系统参数和性能提供了灵活性。高灵敏度和卓越的阻断性能与优化后的 IIP3 相结合,在最恶劣的环境中最大限度地扩大覆盖范围。
功能
- 灵敏度高:1.2 kbps 时低至 -120 dBm
- 高可选性:25kHz 偏置时为 42dB
- 防弹前端:IIP3 = -18dBm、IIP2 = +35dBm,80dB 阻断抗扰性,无图像频率响应
- 低电流接收模式:16 mA
- 低电流睡眠模式,保持寄存器时为 100 nA
- 可编程 TX 功率:-18dBm 至 +17dBm,每档 1dB
- 在 VDD 电压范围内可提供恒定的射频性能
- FSK 比特率高达 300 kb/s
- 高度集成的合成器,分辨率 61 Hz
- FSK、GFSK、MSK、GMSK 和 OOK 调制
- 内置位同步器,可用于时钟恢复
- 输入同步文字识别
- 115 dB 以上动态范围 RSSI
- 自动射频感应与超快速 AFC
- 使用 CRC、AES-128 和 66 字节 FIFO 的封包引擎
- 内置温度传感器和低电量指示灯
- 无铅、无卤素,且符合 RoHS/WEEE 标准
文档 | Release Date | Type | |
---|---|---|---|
SX1231J Data sheet | 2019-11-12 |
Inventory
Product | 国家/地区 | 经销商 | Qty | Buy |
---|
资源


Safeguarding Forests: How Dryad's Silvanet…


Part 2: Getting up and running with LoRa…


第一部分:LoRa Basics™ Modem-E 介绍


LoRa-CES 2025 LoRa 演示-推进 LoRa……


LoRa-CES 2025 LoRa 演示——探索 LoRa 的覆盖范围…


构建端到端资产追踪……
Beyond Basic Monitoring: The Intelligence Revolution
While Parts 1 and 2 explored current applications of LoRaWAN® in crop management and livestock monitoring, the true revolution lies in the intelligent systems being built on top of this robust connectivity foundation. Through integration with analytics platforms, farmers can spot trends, predict yields and quickly identify anomalies. These capabilities help improve resource efficiency, boost productivity and enhance the stability of agricultural operations.
博客
Part 3: The Future of Smart Agriculture -…Revolutionizing Irrigation with IoT
Water scarcity is one of agriculture's most pressing challenges. Traditional irrigation methods often result in overwatering or underwatering, both of which negatively impact crop yields and waste precious resources. Smart irrigation systems powered by LoRaWAN® are changing this paradigm entirely.
博客
Smart Agriculture Revolution: Part 2 - Smart…The Agricultural Revolution is Digital
Agriculture faces unprecedented challenges in the 21st century. With the global population expected to reach nearly 10 billion by 2050, agricultural processes involving food production will have to increase their output by 70 percent by 2050. Climate change, resource scarcity and the need for sustainable practices are pushing farmers toward "precision agriculture" or "smart farming" solutions。
博客
Smart Agriculture Revolution: Part 1 - How…The city of Shanghai hosted one of the most anticipated events for the Chinese IoT industry—IOTE 2025.VP of Marketing and Applications for wireless products at Semtech, Robert Comanescu, attended the event and took part in a key panel discussion on "Empowering Smart Buildings, Cities & Utilities with IoT Solutions" alongside CEO of the LoRa® Alliance, Alper Yegin, and Cheney Li, business cooperation manager at Milesight. The event brought together global leaders, innovators and visionaries in the Internet of Things (IoT) space.
博客
Reflections from IOTE 2025 Shanghai: Innovation,…In busy emergency departments, locating essential equipment like stretchers and wheelchairs is critical for minimizing wasted time and ensuring quality patient care. This exemplifies how effective asset tracking technology with real-time location data allows operations to focus on core business purposes, maximizing value and efficiency. Various market solutions address this need using diverse, complementary technologies. The most successful solutions don't rely solely on superior technical capabilities but deliver them at the lowest cost, accelerating return on investment.
博客
Webinar Recap - Unlock the Power of LoRa®…For over six decades, Semtech has been at the forefront of semiconductor innovation, starting with its humble beginnings as a supplier to military and aerospace industries. This blog explores Semtech's critical founding years and formative period during the 1960s and 1970s, when the company established its foundation as a reliable provider of high-quality electronic components.
博客
The Evolution of Semtech Corporation: The Founding…