SKY85203-11

RF Front End (LNA + PA) Overview

The SKY85203-11 is a radio frequency front-end module designed for 2.4 GHz to 2.5 GHz WLAN applications, supporting IEEE 802.11n and 802.11ac standards. It integrates a switch and low-noise amplifier within a compact 12-pin XFQFN package measuring 2x2 mm. The device operates with a supply voltage range of 3 V to 5 V and draws a typical operating current of 11 mA. It features an SP3T switch configuration and lacks a shutdown pin. The component functions reliably across a temperature range of -40°C to +85°C and is RoHS3 compliant.

RF Front End (LNA + PA) Feature Summary

• Integrates a single-pole triple-throw switch with a low-noise amplifier for efficient signal routing in WLAN systems.
• Optimized for 2.4 GHz to 2.5 GHz frequency bands to support high-speed 802.11n and 802.11ac wireless protocols.
• Utilizes a small form-factor 12-pin bare pad QFN package suitable for space-constrained mobile designs.

RF Front End (LNA + PA) Applications

• Smartphones and tablets requiring integrated 2.4 GHz WLAN connectivity
• IoT devices utilizing 802.11n/ac wireless standards
• Portable consumer electronics with limited PCB real estate

RF Front End (LNA + PA) Procurement Notes

Verify the specific ordering suffix to ensure correct packaging and tape-and-reel specifications. Confirm that the supplier provides official Skyworks documentation matching the part number. Check for RoHS3 compliance status if required by regional regulations. Ensure the procurement channel is authorized to guarantee component authenticity and traceability.

RF Front End (LNA + PA) Selection Notes

Select this component when a combined switch and LNA solution is required for 2.4 GHz WLAN links. Consider the 11 mA current consumption and 3 V to 5 V supply requirements against system power budgets. Evaluate the 2x2 mm package dimensions against available board space. Verify compatibility with 802.11n/ac protocols before integration into the RF chain.

RF Front End (LNA + PA) Part Context

This part belongs to the Skyworks SKY85203 family of RF front-end modules. It is specifically engineered for wireless local area network applications in the 2.4 GHz ISM band. The device consolidates multiple discrete components into a single integrated circuit to reduce size and improve performance consistency in modern mobile devices.

RF Front End (LNA + PA) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Skyworks Solutions Inc. directly for qualified alternatives or cross-reference options based on specific electrical and mechanical requirements.