Typical application of SI4432 radio frequency chip solution IoT wireless communication

Si4432 is a radio frequency chip of Silicon labs company. It is a highly integrated, low power consumption, multi-band EZRadioPRO series wireless transceiver chip. Its working voltage is 1.9 ~ 3.6V, and it can work in four frequency bands of 315/433/868/915MHz; internally integrates diversity antenna, power amplifier, wake-up timer, digital modem, and 64-byte sending and receiving data FIFO and configurable GPIO etc.

The Si4432 chip requires few external components when in use. It only needs a 30MHz crystal oscillator, several capacitors and inductors to form a high-reliability transceiver system, which is simple in design and low in cost. The receiving sensitivity of Si4432 reaches -117dB, Module PEUT  which can provide excellent link quality and minimize power consumption while expanding the transmission range; the minimum filter bandwidth reaches 8kHz, and has excellent channel selectivity; in the 240-960MHz frequency band , the maximum output power can reach +20dBm without a power amplifier, and the maximum sending and receiving distance can reach 2km when the design is good.

Si4432 is widely used as a wireless communication module, and can be applied to wireless data communication, wireless remote control system, small wireless network, small wireless data terminal,Serveur à port série unique   wireless meter reading, access control system, wireless remote sensing monitoring, hydrometeorological monitoring, robot control, wireless RS485/ RS232 data communication and many other fields.