Wireless communication comparison of si4463, si4438 and Si4432 schemes of wireless data transmission module

1. Comparison of basic parameters

The above picture is based on SI4463、SI4438 and SI4432 Three chip design related products , The above list is based on the test data of three products .

2. Function description

SI4432：

SI4432 It is a highly integrated chip , Reduce the cost of peripheral devices , At the same time, the whole system design is simplified , It has extremely low receiving sensitivity 、+20dBm The power output of 、 Built in antenna diversity 、 Support frequency hopping, low price, long communication distance and other market advantages . It is very suitable for projects with limited antenna size or low antenna performance .

SI4432 Is a ISM Wireless transceiver , Can be in 240~960MHz Continuous tuning in the frequency range of .1.8V~3.6V Wide operating voltage and low current consumption , Make it very suitable for battery powered solutions .

meanwhile ,SI4432 The temperature sensor is also integrated inside , Universal ADC And low battery voltage detector .

SI4438：

SI4438 It's a high performance , Low current ,ISM Wireless transceiver ,1.8V~3.6V Wide voltage supply range and low power consumption , Ideal for battery powered applications .SI4438 Internal integration is sometimes divided into duplex (TDD) Transceiver , Transmitting and receiving data in the form of alternating packets , excellent -124dBm sensitivity , Superelevation +20dBm Output power , Achieve industry-leading 144dB Link budget , The extended and highly reliable communication link is realized .

SI4438 covers 425~525MHz Frequency band , Specifically for the domestic intelligent instrument market , Therefore, it is very suitable for smart meters .

SI4463：

In comparison ,SI4463 Frequency application range , sensitivity , Receiving current, etc. should be better than SI4438 and SI4432, And in the practical application scheme , The communication distance is also better than the other two , Of course, the price will be higher , therefore SI4463 It is applicable to the scheme with higher performance requirements .