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SV651 : Si4432 500mW Industrial Anti-Interference Uart RF Module With ESD Protection
- SV651 is an Industrial class & highly-integrated RF module. TTL / 232 /485 can be chosen corresponding to SV651-TTL / SV651-232 / SV651-485. SV651 has good sensitivity and 500mW output power to achieve long RF range and reliable RF communication. To avoid the interference, SV651 provides 40 frequency channels and configurable Net ID. SV651 is flexible but easy to use , it comes with many parameters, such as: frequency, data rate, output power, Net ID, Node ID. Users can configure the parameters through PC or customer’s own device.
- SV651 strictly uses lead-free process for production and testing, and meets RoHS and Reach standards.
| Parameters | Min. | Typ. | Max. | Unit | Condition |
| Working Condition | |||||
| Voltage range | 4.0 | 5.0 | 6.5 | V | |
| Operating Temperature | -40 | 25 | +85 | ℃ | |
| Current Consumption | |||||
| Rx current | 25 | mA | TTL level | ||
| 34 | mA | 485 level | |||
| 32.7 | mA | 232 level | |||
| Tx current | 730 | mA | @30dBm | ||
| Sleep current | ＜5 | uA | @ Custom low power version | ||
| RF Parameters | |||||
| Frequency range | 414.92 | 433.92 | 453.92 | MHz | @433MHz |
| 470.92 | 490.92 | 509.92 | MHz | @490MHz | |
| 849.92 | 868.92 | 888.92 | MHz | @868MHz | |
| 895.92 | 914.92 | 934.92 | MHz | @915MHz | |
| Data rate | 1.2 | 9.6 | 115.2 | Kbps | GFSK |
| Output power | -6 | / | +30 | dBm | |
| Sensitivity | -121 | dBm | @1.2Kbps | ||
| Interface | TTL,RS232,RS485 |
| Network | STAR,Point-to-point |
| Frequency | 433MHz,470MHz,868MHz,915MHz |
| Modulation | (G)FSK |
| Output Power | 500mW |
Features of Uart RF Module SV651
- Built-in software watchdog
- Built-in hardware anti-crash self-reset circuit to resist strong external interference signals
- 433/490/868/915 MHz (Customizable240-930 MHz)
- Industrial class
- 40 channels
- 4 bytes Net ID & 2 bytes Node ID
- Series Data Rate: 1200 ~ 115200 bps
- Air Data Rate: 1200 ~ 115200 bps
- GFSK modulation
- RSSI
- Interface: TTL/RS232/RS485
- Antenna matching automatically
- Bi-directional & Half duplex
- Sensitivity: -121 dBm
- Max output power: 1W(+30 dBm)
- Working voltage: 4.0 ~ 6.5 V
- Working temperature: -40 ~ +85 °C
- Weight: 13.2 g
- Parameters save automatically
Applications of Uart RF Module SV651
- Remote control telemetry
- Security system
- Industrial data acquisition
- Home automation
- Wireless data communication
- Access system
- Robot control
- Wireless PC peripherals
| Pin No. | Definition | Description |
| 1 | VCC | Connected to the positive power supply (typical 5V) |
| 2 | GND | Connected to ground |
| 3 | TXD | TXD of the module and connect to external RXD |
| 4 | RXD | RXD of the module and connect to external TXD |
| 5 | SET | Configuration mode enable (low to enter into the setting mode, leave open or connect high level to exit setting mode) Valid when CS Pin is high or leave open. |
| 6 | CS/NC | For the default version of the module, this pin needs to be left floating (the module has a built-in anti-crash self-reset circuit) Note: Customers can customize the sleep version of the program (without self-reset function), low level sleep, current lower than 5uA, default high level output. |
