SKY85772-11 Front-End Module Skyworks Solutions Inc. SKY85772-11 Front-End Module incorporates a 5GHz transmit/receive (T/R) switch. The SKY85772-11 also incorporates a 5GHz low-noise amplifier (LNA) with bypass and a 5GHz power amplifier (PA) for mobile/portable 802.11ax applications and systems. An integrated power detector provides closed-loop power control within the system. The device is housed in a 16-pin 3mm x 3mm Quad Flat No-Lead (QFN) package.