SKY85712-21

RF Front End (LNA + PA) Overview

The SKY85712-21 is a 5 GHz WLAN front-end module designed for wireless connectivity applications. It integrates a high-performance power amplifier, low-noise amplifier with bypass functionality, and a transmit/receive switch within a single compact package. The device operates at an operating supply voltage of 5 V and draws an operating supply current of 11 mA. It supports frequencies ranging from 5.15 GHz to 5.85 GHz, compliant with 802.11ac standards. The component features fully matched input and output ports, an integrated power detector, and utilizes a 16-UFQFN exposed pad package with dimensions of 3x3 mm. The maximum operating temperature is rated at +85 C.

RF Front End (LNA + PA) Feature Summary

• Integrated high-performance 5 GHz power amplifier, low-noise amplifier with bypass, and transmit/receive switch
• Fully matched input and output interfaces for simplified circuit design
• Integrated power detector for monitoring and control capabilities

RF Front End (LNA + PA) Applications

• 5 GHz Wi-Fi routers and access points
• Wireless LAN devices supporting 802.11ac standards
• Mobile devices requiring 5 GHz connectivity modules

RF Front End (LNA + PA) Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required packaging and tape-and-reel specifications. Confirm that the component status aligns with production requirements, as availability may vary. Cross-reference the datasheet revision to ensure all electrical characteristics match the design intent. Check for any last-time-buy notifications if long-term supply stability is critical for the project timeline.

RF Front End (LNA + PA) Selection Notes

Select this module when a compact solution for 5 GHz WLAN transmission and reception is required. The integrated nature of the PA, LNA, and switch reduces board space and simplifies impedance matching networks. Ensure the system design accommodates the 5 V supply voltage and 11 mA current consumption. Consider the thermal performance of the exposed pad package for heat dissipation in dense layouts.

RF Front End (LNA + PA) Part Context

The SKY85712-21 belongs to the Skyworks SKY85712 series of RF front-end modules. This series targets wireless and RF integrated circuit applications, specifically focusing on WLAN connectivity. The part is categorized under wireless communications components, providing essential signal chain functions for modern networking equipment.

RF Front End (LNA + PA) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Skyworks Solutions technical support or authorized distributors for potential alternatives if this component is discontinued or unavailable.