模塊介紹：
DL-RTM300&300H 基于國產高性能無線收發芯片設計，是一款體積小巧的、低功耗、遠距離的無線收發模塊。主要設定為 433 / 868 / 915 /MHz ISM 等國網專用頻段，靈敏度可以達到-120dbm，,最高傳輸速率達到 300Kbps，輸出功率通+20dbm。模塊集成了所有射頻相關功能，用戶不需要對射頻電路設計深入了解，就可以使用本模塊輕松開發出性能穩定、可靠性高的無線產品，縮短產品的開發周期。
模塊特點：
● 模塊尺寸小, 采用 SMD 郵票邊半孔封裝模式；
● 工作頻率: 433Mhz, 868Mhz, 915 MHz；
● 空曠傳輸 1.8 千米;；
● 支持 FSK,GFSK, OOK 調制方式，可編程控制；
● 通信速率 1.2Kbps～300Kbps，可編程配置；
● 最大輸出功率達 20dBm, -120dBm@1.2Kbps 高接收靈敏度；
● 低功耗，接收電流<7mA；
● 供電電壓：1.9～3.6V DC
● 尺寸 16*16*1.8mm
應用領域：
● ISM 頻段數據通信
● 智能樓宇、智能建筑
● 智能家居安全
● AMR
● 無線遠程控制
● 建筑自動化
● 無線傳感器網絡
● 能量控制和管理
● RKE（遠程無鑰匙進入）
● 熱能采集，表計測量
技術參數：
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 |
引腳定義：
DL-RTM300 PIN 腳定義
| 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 腳定義
| 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. |
尺寸圖及應用連線圖
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