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HOME > PRODUCTS > FSK FRONT-END MODULES > RF4432F27 : 500MW SI4432 RF TRANSMITTER AND RECEIV...
RF4432F27 : 500mW Si4432 RF Transmitter And Receiver Module With 10ppm Crystal Oscillator
- RF4432F27 is 500mW RF transmitter and receiver module embedded with amplifier and LNA circuit. High quality of component, tightened inspection and long term test make this module reliable for long time, long distance communication in varies environment. RF4432F27 adopts Silicon Lab si4432 RF chip, which is a highly integrated wireless ISM band transceiver. The features of high sensitivity (-122 dBm), +27 dBm output power, 10PPM crystal, and good RF matching circuit make this module work well in hot/cold environment with reliable communication and long distance.
- RF4432F27 is manufactured and tested strictly using lead-free process and complies with RoHS and Reach standards.
| Parameter | Min | Typ | Max | Unit | Conditions |
| Supply Voltage Range | 3.3 | 5 | 6 | V | |
| Operating Temperature Range | -40 | 85 | ℃ | ||
| RX Current | 21 | mA | |||
| TX Current | 350 | mA | @27dBm | ||
| Standby Current | < 3 | uA | Register values retained, Oscillator OFF | ||
| Frequency | 428 | 433 | 438 | MHz | @433MHz |
| 863 | 868 | 873 | MHz | @868MHz | |
| Air data rate | 0.123 | 256 | Kbps | FSK | |
| Output power | +27 | dBm | |||
| Sensitivity | -122 | dBm | @Data rate=1.2Kbps |
| Modulation | (G)FSK |
| Chip | si4432 |
| Frequency | 315MHz,433MHz,470MHz,868MHz,915MHz |
| Output Power | 500mW |
| Interface | SPI |
Features of rf transmitter and receiver RF4432F27
- Frequency Range: 315/433/470/868/915 （Customizable 240-930 MHz）
- Sensitivity up to -122 dBm
- Data transfer rate：0.123-256 Kbps
- FSK and GFSK Modulation mode
- 3.3-6.0 V Power supply
- Ultra-low consumption shutdown mode
- Digital received signal strength indicator (RSSI)
- Time wake-up function
- Excellent antenna match circuit and bi-direction communication
- Configurable packet structure
- Preamble detection
- 64bytes transmit and receive data FiFo
- Low battery detection
- Temperature sensor and 8-bit analog-to-digital converters
- 10PPM crystal with operating Temperature Range：-40 ~ + 85 °C
- Integrated voltage regulator
- Frequency hopping
- Power-on reset function
- Built-in crystal adjustment function
Applications of rf transmitter and receiver RF4432F27
- Remote control
- Remote meter reading
- Home security alarm and remote keyless entry
- Sensor networks
- Industrial control
- Tire Pressure Monitoring
- Home automation telemetry
- Health Monitoring
- Personal data records
- Wireless PC peripherals
- Toy control
- Tag reader
The GPIO0, GPIO1 of the Si4432 is connected to the antenna switch on the module. GPIO0=TX EN,GPIO1=RX EN
| Pin NO. | Pin Name | Description |
| 1 | VCC | Positive power supply |
| 2 | GND | Connected to power ground |
| 3,4 | NC | Vacant, not connected |
| 5 | SDN | Power down control. |
| SDN = 1, power down | ||
| SDN = 0, normal working. | ||
| 6 | nIRQ | Interrupt output |
| 7 | nSEL | Serial data selection for SPI interfaces. |
| 8 | GND | Connected to power ground |
| 9 | SCLK | Serial data clock for SPI interface |
| 10 | SDI | Serial data out for SPI interface. |
| 11 | SDO | Serial data out for SPI interface |
| 12 | GPIO2 | GPIO2 of Si4432 |
| 13,14 | NC | Not connected |
| 15 | GND | Connected to power ground |
| 16 | ANT | From 50 ohm coaxial antenna |
