SI4421 Datasheet (Silicon Labs) - Universal ISM Band FSK Transceiver

SI4421, Universal ISM Band FSK Transceiver

Silicon Labs’ Si4421 is a single chip, low power, multi-channel FSK transceiver designed for use in applications requiring FCC or ETSI conformance for unlicensed use in the 433, 868 and 915 MHz bands.

The Si4421 transceiver is a part of Silicon Labs’ EZRadioTM product line, which produces a flexible

SI4421 Features

* a completely integrated PLL for easy RF design, and its rapid settling time allows for fast frequency-hopping, bypassing multipath fading and interference to achieve robust wireless links. The PLL’s high resolution allows the usage of multiple channels in any of the bands. The receiver baseband band