FCC Primer for Amplified 802.15.4 / 2.4GHz DSSS Applications
This application note focuses on FCC compliance limits for 2.4GHz DSSS radios being utilized in ZigBee-compliant and non-ZigBee-compliant DSSS platforms. Integrated 2.4GHz transceivers and SoC (System on Chip) radios allow engineers to quickly implement radio designs following manufacturers’ data sheets and application notes. Application-specific PAs and integrated RF front ends also enable increased performance by mating a PA or various combinations of integrated balun, PA, LNA and T/R switch to the single-chip radio. This produces a simple yet powerful design. The FCC limits stated in 47CFR 15.247 allow for a maximum of 1W conducted RF power output and up to a +6dBi antenna gain. This document will outline significant limitations in achieving TX output power to assist the engineer in investigating relevant factors before bringing the product to the certification lab.
Please disable any pop-up blockers for proper viewing of this Whitepaper.