SKY85706-11

RF Front End (LNA + PA) Overview

The SKY85706-11 is a 5 GHz front-end module designed for 802.11n/ac WLAN applications. It integrates a power amplifier with harmonic filtering, a low-noise amplifier with bypass capability, and an SPDT switch within a compact 16-QFN (2.5x2.5 mm) package. The device features fully matched input and output interfaces to simplify RF circuit design. It supports high linearity and efficiency requirements for modern wireless standards.

RF Front End (LNA + PA) Feature Summary

• Integrates a high-performance 5 GHz power amplifier equipped with harmonic filtering capabilities.
• Includes a low-noise amplifier with a dedicated bypass function for flexible signal routing.
• Incorporates a single-pole double-throw (SPDT) switch for transmit/receive path management.
• Provides fully matched input and output ports to reduce external component count.

RF Front End (LNA + PA) Applications

• 5 GHz Wi-Fi routers and access points
• Wireless LAN client devices
• Enterprise networking equipment

RF Front End (LNA + PA) Procurement Notes

Verify the current production status of the SKY85706-11 prior to procurement, as it has been reported as discontinued by some distributors. Confirm availability through official Skyworks channels or authorized partners. Ensure that any replacement components meet the same electrical specifications and pinout compatibility if substitution is required for ongoing production.

RF Front End (LNA + PA) Selection Notes

Select this module for designs requiring integrated PA, LNA, and switching functions in a minimal footprint. It is suitable for applications needing harmonic suppression without additional discrete filters. Consider the 16-QFN package constraints for PCB layout. Evaluate thermal performance under maximum output conditions to ensure reliable operation in enclosed networking hardware.

RF Front End (LNA + PA) Part Context

This component belongs to Skyworks' portfolio of integrated RF front-end solutions for wireless connectivity. It addresses the trend toward miniaturization in WLAN infrastructure by consolidating multiple passive and active components into a single unit. The module supports the evolution from legacy Wi-Fi standards to higher throughput 802.11ac implementations.

RF Front End (LNA + PA) Replacement Considerations

Guerrilla RF offers three replacements with comparable RF performance for this discontinued part. Verify pin-to-pin compatibility and electrical parameter alignment before substituting. Consult official datasheets for the recommended alternatives to ensure seamless integration into existing 5 GHz WLAN designs.