[IC] :AX5043
[Frequency] :313~325.6MHz
[Power] :7~17dBm
[Distance] :2.0km
[Interface] :UART
[Introduction] :E52-TTL-50 is a 17dBm wireless transceiver module. The outstanding advantages of narrow-band transmission is more concentrated power density, longer transmission distance, better anti-interference performance.
| RF Parameter | Value | Remark |
| Working frequency | 313~325.6 MHz | Default: 315MHz |
| Transmitting power | 7~17 dBm | Default: 17dBm（About 50mW） |
| Receiving sensitivity | -126 dBm | Air data rate: 1.2kbps |
| Air data rate | 1.2k~70kbps | Default: 1.2kbps |
| Test distance | 2000m | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m, air data rate: 1.2kbps |
| Hardware Parameter | Value | Remark |
Size | 21 * 36 mm | Without SMA |
Antenna type | SMA-K | |
Communication interface | UART | Baud rate: 1200~115200, default: 9600 |
Package | DIP | |
Buffer | 512 bytes buffer | Automatically sub-packaging with 43 bytes per package |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply | 2.3 | 5.0 | 5.2 | V | |
| Communication level | 2.5 | 3.3 | 3.6 | V | |
| Transmitting current | 59 | 64 | 70 | mA | 17dBm（50mW） |
| Receiving current | 10 | 11 | 12 | mA | |
| Sleep current | 3 | 4 | 5 | μA | |
| Operating temperature | -40 | 20 | +85 | ℃ | |
| Operating humidity | 10 | 60 | 90 | % | |
| Storage temperature | -40 | 20 | +125 | ℃ |
| Pin No. | Pin Item | Pin Direction | Pin Application |
| 1 | M0 | Input （weak pull-up） | Work with M1 & decide the four operating modes. Floating is not allowed, can be ground. |
| 2 | M1 | Input （weak pull-up） | Work with M0 & decide the four operating modes. Floating is not allowed, can be ground. |
| 3 | RXD | Input | TTL UART inputs, connects to external TXD (MCU, PC) output pin. Can be configured as open-drain or pull-up input |
| 4 | TXD | Output | TTL UART outputs, connects to external RXD (MCU, PC) input pin. |
| 5 | AUX | Output | To indicate module's working status & wakes up the external MCU. During the procedure of self-check initialization, the pin outputs low level. Can be configured as open-drain output or push-pull output (floating is allowed). |
| 6 | VCC | Input | Power supply 2.1V-5.5V DC |
| 7 | GND | Input | Ground |
| 8 | Fixing hole | Fixing hole | |
| 9 | Fixing hole | Fixing hole | |
| 10 | Fixing hole | Fixing hole |
| 产品 型号 | IC | Interface | Frequency Hz | Power dBm | Distance km | Air Rate(bps) | Package | Size (mm) | Feature | 技术 手册 | 样品 购买 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E52-DTU-50 | 232/485 | AX5043 | 315M | 17 | 2.0 | 1.2k~70k | Screwing/DB9 | 82*62*25 | Narrow-band , WOR | ||
| E52-TTL-50 | UART | AX5043 | 315M | 17 | 2.0 | 1.2k~70k | DIP | 21*36 | Narrow-band , WOR |
