SKY85405-21

RF Front End (LNA + PA) Overview

The SKY85405-21 is a high-power RF power amplifier IC designed for 802.11ac WLAN applications operating in the 5.15GHz to 5.93GHz frequency range. It utilizes Silicon technology and is supplied at 3.3V. The component is housed in a compact 4x4mm package, providing efficient signal amplification for wireless connectivity systems.

RF Front End (LNA + PA) Feature Summary

• Optimized for high-efficiency power amplification in 802.11ac WLAN standards
• Engineered for low power consumption and superior thermal stability
• Integrated design suitable for compact wireless frontend modules

RF Front End (LNA + PA) Applications

• 802.11ac Wireless LAN (WLAN) systems
• High-performance RF frontend modules
• Consumer electronic devices requiring 5GHz connectivity

RF Front End (LNA + PA) Procurement Notes

This component has been officially discontinued by Skyworks Solutions, Inc. and is no longer in active production. Procurement should focus on verifying the authenticity of remaining stock from authorized distributors or secondary market suppliers. Buyers must confirm the specific revision status and ensure that any available units meet original manufacturing specifications before acquisition.

RF Front End (LNA + PA) Selection Notes

Due to its End-of-Life (EOL) status, this part is not recommended for new product designs. Engineers should evaluate alternative components with similar RF performance characteristics and pin compatibility. Selection criteria must prioritize availability and long-term supply chain stability over the specific legacy parameters of this discontinued model.

RF Front End (LNA + PA) Part Context

The SKY85405-21 belongs to Skyworks' portfolio of wireless and RF integrated circuits. It serves as a specialized power amplifier solution for the 5GHz band, addressing the growing demand for high-speed data transmission in modern consumer electronics and networking infrastructure.

RF Front End (LNA + PA) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official Skyworks replacement guides or contact technical support for validated alternatives.