Si4463 Ultra-Low Power RF Transceiver from Canada
Silicon Labs Si4463 is a sub-GHz RF transceiver IC for narrowband FSK, GFSK, and 802.15.4g applications in smart metering and remote controls. Falls under HTS 8542.39.0010 due to its integrated RF transceiver architecture including fractional-N synthesizer and antenna diversity support. Optimized for battery life in remote sensor applications.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Submit datasheets emphasizing transceiver functions (TX/RX chains) to distinguish from general RF ICs
• Prepare for potential 8543 scrutiny by documenting lack of discrete RF components
• Include MTBF data for industrial applications to support valuation claims