概览
SX1231 是一款高度集成的射频收发器芯片，工作频率范围很广，包括 433、868 和 915MHz 免授权 ISM（工业、科学和医学）频段。它具备高度集成的架构，在保持最大设计灵活性的同时，可最大程度减少外部元件的使用。
功能
- 灵敏度高：1.2 kbps 时低至 -120 dBm
- 高选择性：16 抽头 FIR 通道滤波器
- 防弹前端：IIP3 = -18dBm，IIP2 = +35dBm，80dB 阻断抗扰性，无图像频率响应
- 电流低：Rx = 16mA，寄存器保持数据时为 100nA
- 可编程输出功率：-18dBm 至 +17dBm，每档 1dB
- 在芯片的电压范围内能够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，可执行时钟恢复操作
- 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 加密和 66 字节 FIFO 的封包引擎
- AEC-Q100 认证产品
- 内置温度传感器和低电量指示灯
| 文档 | Release Date | Type |  |
|---|---|---|---|
| SX1231 数据表 | 2018-12-21 | | |
| AN1200.18: Software Implementation of Data Whitening and CRC | 2019-07-12 | | |
| 计算传导功率测量的辐射功率和场强 | 2019-04-18 | | |
| FCC 第 15.247 部分使用数字调制的规则系统 | 2019-04-18 | | |
| 提高晶体振荡器的准确度 | 2019-04-18 | | |
| RF 设计指南：PCB 布局和电路优化 | 2019-07-03 | | |
| 带 FHSS 的 SX1231 无线星型网络 | 2019-07-03 | | |
| XE8000 驱动 XE1200 收发器 — 标准 API 定义 | 2019-07-03 | ZIP | |
| SM1231 Gerber、BOM 和示意图 | 2024-02-01 | ZIP | |
| SM1231 射频模块用户指南 | 2019-07-03 | | |
| SX1231 射频模块用户指南 | 2019-04-16 | | |
| SX1231SKB 用户指南 | 2019-11-12 | | |
| 文档 | Release Date | Type | |
|---|---|---|---|
| 软件版本（固件） | 2019-07-03 | ZIP | |
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Inventory
| Product | 国家/地区 | 经销商 | Qty | Buy |
|---|
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