SKY85717-21

RF Front End (LNA + PA) Overview

The SKY85717-21 is a 5 GHz front-end module (FEM) designed for mobile and portable 802.11ac applications. It integrates a power amplifier (PA), switch, and low-noise amplifier (LNA). The device provides 28 dB transmit gain and 12 dB receive gain with fully matched input and output ports. It operates within the 5 GHz band supporting 802.11a/b/g/n/ac standards. The component is housed in a compact 16-pin MCM-16 package measuring 2.5 mm x 2.5 mm x 0.4 mm.

RF Front End (LNA + PA) Feature Summary

• Integrates PA, SPDT switch, and LNA into a single compact module
• Provides high transmit gain of 28 dB and receive gain of 12 dB
• Features fully matched input and output ports for simplified design

RF Front End (LNA + PA) Applications

• Mobile 802.11ac wireless local area network devices
• Portable Wi-Fi routers and access points
• IoT modules requiring 5 GHz connectivity

RF Front End (LNA + PA) Procurement Notes

Verify the specific ordering suffix to ensure correct packaging configuration. Confirm that the received component matches the Skyworks Solutions Inc. part number SKY85717-21. Check for physical integrity of the 16-pin QFN package. Ensure storage conditions comply with moisture sensitivity levels specified in the datasheet. Validate authenticity through authorized distribution channels.

RF Front End (LNA + PA) Selection Notes

Select this FEM for designs requiring integrated 5 GHz transmission and reception capabilities. The compact 2.5x2.5mm footprint suits space-constrained mobile devices. Verify compatibility with host processor voltage levels and control signals. Ensure antenna switching requirements align with the integrated SPDT switch functionality. Consider thermal management needs due to integrated PA operation.

RF Front End (LNA + PA) Part Context

This component belongs to the SKY85717 series of RF front-end modules. It is specifically engineered for 5 GHz WLAN applications. The series targets high-performance mobile and portable electronics. Integration reduces board space compared to discrete solutions. The module simplifies RF circuit design by combining essential components.

RF Front End (LNA + PA) Replacement Considerations

No public confirmed substitute part numbers are available.