RF4432X1 : Si4432 Iow-Cost Transceiver Using
Certification: Others
Modulation: (G)FSK
Chip: si4432
Interfacce: SPI
Output Power: 100mW
Frequency: 315MHz,433MHz,470MHz,868MHz,915MHz
Size (mm):16*16
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RF4432 : 100mW Si4432 RF Transceiver Module With Front End Module
- The RF4432 RF transceiver module is designed with Silicon Lab's si4432 chip. The modules have extremely low receiving sensitivity (-121 dBm), plus industry-leading +20 dBm output power to ensure extended range and improve link performance.
- RF4432 modules use lead-free technology for production and testing strictly, and comply with RoHS and Reach standards.
| Parameter | Min | Typ. | Max. | Unit | Condition |
| Operation Condition | |||||
| Working voltage range | 1.8 | 3.3 | 3.6 | V | |
| Temperature voltage | -40 | 85 | ℃ | ||
| Current Consumption | |||||
| RX current | 18.5 | mA | |||
| TX current | 85 | mA | @20dBm | ||
| Sleep current | < 1 | uA | |||
| RF Parameter | |||||
| Frequency range | 403 | 433 | 463 | MHz | @433MHz |
| 470 | 490 | 510 | MHz | @490MHz | |
| 838 | 868 | 898 | MHz | @868MHz | |
| 900 | 915 | 930 | MHz | @915MHz | |
| Modulation rate | 0.123 | 256 | Kbps | FSK | |
| Output power range | 1 | 20 | dBm | ||
| Receiving sensitivity | -121 | dBm | @Data rate=1.2Kbps | ||
| Modulation | (G)FSK |
| Chip | si4432 |
| Frequency | 315MHz,433MHz,470MHz,868MHz,915MHz |
| Output Power | 100mW |
| Interface | SPI |
Features of RF transceiver module RF4432
- Frequency Range：315/433/490/868/915MHz（customizable 240-930MHz）
- Sensitivity up to -121dBm
- Maximum output power：20dBm
- Data transfer rate：0.123-256Kbps
- FSK, GFSK&OOK Modulation mode
- 1.8-3.6 V Power supply
- Ultra-low consumption shutdown mode
- Digital received signal strength indicator(RSSI)
- Timed wake-up function
- Antenna automatic matching and two-way switch control
- Configurable data packet structure
- Preamble detection
- 64 bytes send and receive data register（FiFo）
- Low power detection
- Temperature sensor and 8-bit analog-to-digital converters
- Operating Temperature Range：-40 ～ +85°C
- Integrated voltage regulator
- Frequency hopping
- Power-on reset function
- Built-in crystal adjustment function
- 30mA@+13dBm（Transmit）
Applications of RF transceiver module RF4432
- remote control
- Remote meter reading
- Home security alarm
- Personal data record
- Toys control
- Industrial control
- Sensor network
- Tire pressure monitoring
- Health monitoring
- Wireless PC peripherals
- Tag reading and writing
- Home automation remote sensing
| Pin NO. | Pin Name | Description |
| 1 | GND | Power ground |
| 2 | GPIO0 | The control pin of the transmitter switch is connected inside the module |
| 3 | GPIO1 | The control pin of the transmitter switch is connected inside the module |
| 4 | GPIO2 | Connect directly to the GPIO2 pin of the chip |
| 5 | VCC | Positive power supply 3.3V |
| 6 | SDO | 0～VDD V digital output, provides serial readback function to internal control register. |
| 7 | SDI | Serial data input. 0～VDD V digital input. This pin is a 4-wire serial data serial data stream bus. |
| 8 | SCLK | Serial clock input. 0～VDD V digital input. This pin provides a 4-wire serial data clock function. |
| 9 | nSEL | Serial interface select input pin. 0～VDD V digital input. This pin provides select/enable function for 4-wire serial data bus. This signal is also used to indicate burst read/write mode. |
| 10 | nIRQ | Interrupt output |
| 11 | SDN | Chip enable pin. 0～VDD V digital input. SDN=0 in all modes except shutdown mode. When SDN=1, the chip will be completely shut down and the contents of the register will be lost. |
| 12 | GND | Power ground |
| 13 | GND | Power ground |
| 14 | ANT | Connect with 50 ohm coaxial antenna |
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