SKY85309-11

RF Front End (LNA + PA) Overview

The SKY85309-11 is a highly integrated 2.4 GHz front-end module (FEM) designed for high-power 802.11ac applications. It operates within the 2.4 GHz to 2.5 GHz frequency range and supports 802.11a/n/ac standards. The device incorporates a 2.4 GHz single-pole double-throw (SPDT) transmit/receive switch, a low-noise amplifier (LNA) with bypass functionality, and a power amplifier (PA). It requires an operating supply voltage of 3.3 V or 5 V and utilizes a QFN-24 package for surface-mount technology.

RF Front End (LNA + PA) Feature Summary

• Integrates SPDT T/R switch, LNA with bypass, and PA in a single compact module
• Optimized for high-power 802.11ac WLAN systems
• Supports dual supply voltage operation at 3.3 V and 5 V

RF Front End (LNA + PA) Applications

• High-power 802.11ac wireless local area network (WLAN) devices
• Wi-Fi routers and access points requiring enhanced signal coverage
• IoT gateways utilizing 2.4 GHz band connectivity

RF Front End (LNA + PA) Procurement Notes

Verify the specific datasheet version and ordering suffix to ensure compatibility with target system requirements. Confirm that the QFN-24 package dimensions align with PCB layout constraints. Cross-reference electrical specifications against the latest Skyworks Solutions documentation to validate performance parameters before integration into production designs.

RF Front End (LNA + PA) Selection Notes

Select this component for designs prioritizing high output power and integration density in 2.4 GHz Wi-Fi applications. Ensure the host system provides stable 3.3 V or 5 V rails compatible with the FEM's input requirements. Evaluate thermal management strategies suitable for the QFN-24 package to maintain optimal PA performance under continuous transmission loads.

RF Front End (LNA + PA) Part Context

This part belongs to Skyworks Solutions' portfolio of WLAN front-end modules tailored for consumer electronics and networking infrastructure. It addresses the need for simplified RF design by consolidating multiple discrete components into one solution. The module supports modern Wi-Fi standards while maintaining form-factor efficiency for space-constrained mobile and stationary devices.

RF Front End (LNA + PA) Replacement Considerations

Consult official Skyworks Solutions substitution guides for verified alternatives. Do not assume functional equivalence with other SKY853xx series parts without validating pinout and electrical parameter alignment through direct datasheet comparison.