模块介绍：
DL-RTM300&300H 基于国产高性能无线收发芯片设计，是一款体积小巧的、低功耗、远距离的无线收发模块。主要设定为 433 / 868 / 915 /MHz ISM 等国网专用频段，灵敏度可以达到-120dbm，,传输速率达到 300Kbps，输出功率通+20dbm。模块集成了所有射频相关功能，用户不需要对射频电路设计深入了解，就可以使用本模块轻松开发出性能稳定、可靠性高的无线产品，缩短产品的开发周期。
模块特点：
● 模块尺寸小, 采用 SMD 邮票边半孔封装模式；
● 工作频率: 433Mhz, 868Mhz, 915 MHz；
● 空旷传输 1.8 千米;；
● 支持 FSK,GFSK, OOK 调制方式，可编程控制；
● 通信速率 1.2Kbps～300Kbps，可编程配置；
● MAX输出功率达 20dBm, -120dBm@1.2Kbps 高接收灵敏度；
● 低功耗，接收电流<7mA；
● 供电电压：1.9～3.6V DC
● 尺寸 16*16*1.8mm
应用领域：
● ISM 频段数据通信
● 智能楼宇、智能建筑
● 智能家居安全
● AMR
● 无线远程控制
● 建筑自动化
● 无线传感器网络
● 能量控制和管理
● RKE（远程无钥匙进入）
● 热能采集，表计测量
技术参数：
Maximum
| parameter | minimum | maximum | Unit |
| Positive Power Supply | -0.3 | +3.6 | V |
| Voltage On Digital Control Inputs | -0.3 | VDD+0.3 | V |
| Voltage On Analog Inputs | -0.3 | VDD+0.3 | V |
| RX Input Power | - | +10 | dBm |
| Storage Temperature | 55 | +125 | ℃ |
| Soldering Temperature（10s） | - | +255 | ℃ |
| ESD Rating（Human Boy Model） | -2 | 2 | KV |
Recommended working range
| parameter | minimum | maximum | Unit |
| Positive Power Supply | +1.8 | +3.6 | V |
| Working Temperature | -20 | +70 | ℃ |
| Supply Voltage Slew Rate | 1 | - | mV/us |
引脚定义：
DL-RTM300 PIN 脚定义
| Number | Definition | Type | Function |
| 1 | ANT | AI/AO | RF signal input/output. |
| 2 | 3.3V(VDD) | Pl | Power supply input,1.8-3.6V. |
| 3 | GND | G | Ground. |
| 4 | NC |
| No Connect. |
| 5 | CSB | l | SPI Chip select input, active low. |
| 6 | SCK | l | SPI Clock input. |
| 7 | FCSB | l | SPI FIFO select input, active low. |
| 8 | SDlO | l/O | SPI Data input and output. |
| 9 | GPlO1 | l/O | General Purpose Digital I/O that may be configured through the registers to perform variousfunctions |
| 10 | GPlO3 |
11
| GPlO2 |
| 12 | NC |
| No Connect. |
| 13 | NC |
| No Connect. |
| 14 | GND | G | Ground. |
DL-RTM300H PIN 脚定义
| Number | Definition | Type | Function |
| 1 | ANT | Al/AO | RF signal input/output. |
| 2 | GND | G | Ground. |
| 3 | TX-ANT | l/O | Tx Antenna select input pin, When 300H is TX state,TX_ANT should be = 0, RX_ANT should be = 1 |
| 4 | RX-ANT | l/O | Rx Antenna select input pin, When 300H is RX state,RX_ANT should be = 0, TX_ANT should be = 1 |
| 5 | 3.3V(VDD) | Pl | Power supply input,1.8-3.6V. |
| 6 | GPlO1 | l/O | General Purpose Digital I/O that may be configured through the registers to perform variousfunctions |
| 7 | GPlO2 |
| 8 | GPlO3 |
| 9 | GND | G | Ground. |
| 10 | SDIO | l/O | SPI Data input and output. |
11
| CSB | l | SPI Chip select input, active low. |
| 12 | SCK | l | SPI Clock input. |
13
| FCSB | l | SPI FIFO select input, active low. |
| 14 | NC |
| No Connect. |
| 15 | NC |
| No Connect. |
| 16 | GND | G | Ground. |
尺寸图及应用连线图
