RF4432X1 : Si4432 Iow-Cost Transceiver Using

The RF4432X1 RF transmitter and receiver 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.
RF4432X1 modules use lead-free technology for production and testing strictly, and comply with RoHS and Reach standards.

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Features of RF transmitter and receiver RF4432X1

Application circuit of Si4432 Low-Cost Transceiver Module RF4432X1

Pin definition of Si4432 Low-Cost Transceiver Module RF4432X1

Pin NO.	Pin Name	Description
1	ANT	Connect with 50 ohm coaxial antenna
2	GND	Power ground
3	RX_ANT	Transmit antenna switch control pin
4	TX_ANT	Receiving antenna switch control pin
5	VCC	Connect to the positive power supply 3.3V
6	GPIO0	Connect directly to the GPIO0 pin of the chip
7	GPIO1	Connect directly to the GPIO1 pin of the chi
8	GPIO2	Connect directly to the GPIO 2 pin of the chi
9	GND	Power ground
10	SDO	0～VDD V digital output, provides serial readback function to internal control register
11	SDI	Serial data input. 0～VDD V digital input. This pin is a 4-wire serial data serial data stream bus.
12	SCLK	Serial clock input. 0～VDD V digital input. This pin provides a 4-wire serial data clock function.
13	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.
14	nIRQ	Interrupt output pin
15	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.
16	GND	Power ground

Mechanical dimensions of Si4432 Low-Cost Transceiver Module RF4432X1

Mechanical Dimensions of of RF transmitter and receiver RF4432X1