| RF4432-B | SI4432 Wireless Transceiver module, Distance 2500m 
					                
					                  |  |  |  | $16USD  RF4432-B Features
	Ultra-thin ultra-small (38x20mm)Using the latest version of the U.S. SI4432 ICFrequency range: 433.92MSensitivity up to-121dBmDdata transfer rate:0.123-256kbpsFSK, GFSK and OOK modulationPower supply: 1.8-3.6 V   Related Resource for RF4432-B |   
  
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			| Product Infomation 	  	 
   	  The module is based on SI4432 from Silicon labs.The -121dBm and +20dBm output power ensures extended range,make the module suitable for long range applications.Its communication distance up to 2500m.User can modify the internal parameters through the SPI interface.The Module is with a nickel-plated shield cover to enhance anti-interference ability greatly.  
	Ultra-thin ultra-small (38x20mm)Good harmonicsThe penetration ability (measured through 4-6 floors)Using the latest version of the U.S. SI4432 IC, stable performanceFrequency range: 433.92MSensitivity up to-121dBmMaximum output power: 20dBmDdata transfer rate:0.123-256kbpsFSK, GFSK and OOK modulationPower supply: 1.8-3.6 VUltra-low-consumption shutdown modeDigital received signal strength indication (RSSI)Wake timeAutomatic matching and two-way antenna switch controlConfigurable packet structurePreamble detection64-byte send and receive data register (FIFO)Low power detection8-bit ADC and temperature sensorOperating temperature range: -20 ~ +60 ° CIntegrated voltage regulatorFrequency hoppingPower-on reset functionBuilt-in lens adjustment Pin Define

 
	
		
			| Pin No. | Pin Definition | Description |  
			| 1 | VCC | Power supply |  
			| 2 | GND | Ground |  
			| 3 | NC | No Connect |  
			| 4 | NC | Connect |  
			| 5 | SDN | Shutdown input pin.0–VDD V digital input.SDN should be = 0 in all modes except Shutdown mode.When SDN =1 the chip will be completely shutdown and the contents of the registers will be lost. |  
			| 6 | nIRQ | General Microcontroller Interrupt Status output |  
			| 7 | nSEL | Serial Interface Select input. 0– VDD V digital input.This pin provides the Select/Enable function for the 4-line serial data bus. The signal is also used to signify burst read/write mode. |  
			| 8 | GND | Ground |  
			| 9 | SCLK | Serial Clock input.0–VDD V digital input.This pin provides the serial data clock function for the 4-line serial data bus. Data is clocked into the Si4430/31/32 on positive edge transitions. |  
			| 10 | SDI | Serial Data input. 0–VDD V digital input. This pin provides the serial data stream for the 4-line serial data bus. |  
			| 11 | SDO | 0–VDD V digital output that provides a serial readback function of the internal control registers |  
			| 12 | GPIO2 | Test receiver sensitivity |  
			| 13 | NC | No Connect |  
			| 14 | NC | No Connect |  
			| 15 | GND | Ground |  
			| 16 | ATN | Extra antenna or TR switch control to be used if more GPIO are required. Pin is a hardwired version of GPIO setting 11000, Antenna 2 and can be manually controlled by the antdiv[2:0] bits in register 08h. |   |  
			| Order InfomationContact&Service 	  
 									
										| Contact Us  Tel: +86-755-29638421 Sales Mail: market@armdevs.com  Support: support@armdevs.com  MSN: armdevs@hotmail.com  | Customer Design Service  
				              	CoreWind also offers customer design service based on the RF4432-B  board according to customer’s requirement. Whether you need to reduce, add or modify to existing hardware, CoreWind will help customers with expert competence and rich experience.
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