- The RF4432 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.
Features
- 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 dataregister(FiFo)
- Low power detection
- Temperature sensor and 8-bitanalog-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
- 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
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 |
Typical Application Circuit
Pin Configuration:
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 |
Mechanical Dimensions(Unit:mm)