[IC]:CMT2300A
[Frequency]:850~930MHz
[Power]:20dBm
[Distance]:3km
[Size]:20*14mm
[Introduction]:E49-900M20S Supports the maximum transmission power of 20dBm, users can set a lower output power , thus saving power consumption.The module works in the 850MHz ~ 930MHz frequency band, including the commonly used 868MHz and 915MHz frequency band.
parameters | Description | Remark |
Reference distance | 3kM | Test condition:clear and open area, antenna height: 2.5m,air data rate 2.4kbps |
Crystal Oscillator | 26MHz | - |
Package | SMD | - |
Communication interface | SPI | - |
Size | 20*14mm | - |
Antenna | IPEX/stamp hole | 50 ohm impedance |
Weight | 1.2±0.1g | - |
parameters | Min. | Typ. | Max. | Unit | Remark |
Power supply | 1.8 | 3.3 | 3.6 | V | Voltage over 3.6V will cause permanent damage to module |
Communication level | - | 3.3 | - | V | For 5V TTL, it may be at risk of burning down |
Operating temperature | -40 | - | +85 | ℃ | Industrial grade |
Operating frequency | 850 | 868 | 930 | MHz | - |
TX current | - | 75 | - | mA | @TX power 20dBm |
RX current | - | 8.5 | - | mA | - |
Sleep current | 300 | 300 | 300 | nA | - |
Max TX power | - | 20 | - | dBm | - |
Receiving sensitivity | -116 | -117 | -118 | dBm | @Air data rate is 1.2kbps |
No. | Item | Direction | Description |
1 | GND | - | Ground |
2 | GND | - | Ground |
3 | GND | - | Ground |
4 | GND | - | Ground |
5 | GPIO1 | DI/O | Configurable multi-function IO port(see CMT2300A manual for details) |
6 | RXEN | DI/O | Configurable multi-function IO port(see CMT2300A manual for details) |
7 | TXEN | DI/O | Configurable multi-function IO port(see CMT2300A manual for details) |
8 | VCC | - | Power supply +3.3V |
9 | VCC | - | Ground |
10 | VCC | - | Ground |
11 | SCLK | DI | SPI clock pin |
12 | SDIO | DI/O | SPI data pin |
13 | CSB | DI | SPI register accesser |
14 | FCSB | DI | SPI FIFO accesser |
15 | GND | - | Ground |
16 | GND | - | Ground |
17 | ANT | - | RF module stamp hole interface,impedance 50Ω |
18 | GND | - | Ground |
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【E-mail】:service@cdebyte.com |
Technical support |
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产品 型号 | Interface | IC | Frequency | Power | Distance | Air data rate | Package | Size | Feature | 技术 手册 | 样品 购买 |
---|---|---|---|---|---|---|---|---|---|---|---|
E49-900T20S | UART | - | 868M 915M | 20 | 2.5 | 1.2k~200k | SMD | 26 * 16 | Low power consumption | ||
E49-900M20S | SPI | CMT2300A | 868M 915M | 20 | 3 | - | SMD | 20*14 | Low power consumption | ||
E49-400M20S | SPI | - | 433M 470M | 20 | 2.5 | 0.5Kbps~300Kbps | SMD | 26 * 16 | Low power consumption, high cost performance | ||
E49-400T20S | UART | - | 433M 470M | 20 | 2.5 | 1.2k~200k | SMD | 26 * 16 | Low power consumption, low cost solution | ||
E49-400T20D | UART | - | 433M 470M | 20 | 2.5 | 1.2k~200k | DIP | 36*21 | Low power consumption, low cost solution |