SE5502L-R

RF Front End (LNA + PA) Overview

The SE5502L-R is a complete RF front-end module designed for dual-band 802.11a/b/g/n WLAN applications, operating at 2.4 GHz and 5.0 GHz frequencies. It integrates essential functions including power amplifiers, low-noise amplifiers, filtering, power detection, and transmit/receive switching within a single component. The device utilizes Silicon Germanium (SiGe) technology and is housed in a 24-pin QFN package suitable for surface mount installation. It supports data rates up to 11 Mbps and operates on a 3.3 V supply with a current consumption of 175 mA. The module functions reliably across a temperature range from -40°C to +85°C.

RF Front End (LNA + PA) Feature Summary

• Integrates complete RF front-end functionality for dual-band WLAN systems
• Combines power amplifier, low-noise amplifier, and T/R switch in one module
• Utilizes SiGe technology for efficient signal processing

RF Front End (LNA + PA) Applications

• Dual-band wireless local area network devices
• 802.11a/b/g/n compliant hardware
• Integrated Wi-Fi routers and access points

RF Front End (LNA + PA) Procurement Notes

Verify component authenticity through authorized channels as the SE5502L-R is listed as obsolete by the manufacturer. Confirm package integrity and pin alignment against the 24-VFQFN specification before integration. Ensure compatibility with existing PCB layouts due to the specific footprint requirements. Check for updated replacement recommendations from Skyworks Solutions given the end-of-life status.

RF Front End (LNA + PA) Selection Notes

Select this component for designs requiring integrated dual-band WLAN support without separate discrete components. Consider the 24-QFN package size constraints during layout planning. Evaluate thermal management capabilities as the module handles both transmission and reception paths. Verify that the 3.3V supply voltage aligns with the system's power architecture.

RF Front End (LNA + PA) Part Context

The SE5502L-R belongs to the SE5502L series of RF front-end modules manufactured by Skyworks Solutions. It is part of the broader portfolio of wireless connectivity solutions designed for compact mobile and stationary networking equipment. The module simplifies design complexity by consolidating multiple RF stages into a single silicon solution.

RF Front End (LNA + PA) Replacement Considerations

The SE5502L-R is marked as obsolete. Designers should consult official Skyworks documentation for direct or compatible substitute part numbers suitable for dual-band WLAN applications.