QPF4518MSR

RF Front End (LNA + PA) Overview

The QPF4518MSR is a Wi-Fi front-end module (FEM) designed for 802.11ac systems operating in the 5.15 GHz to 5.925 GHz band. It features a noise figure of 2 dB, with transmit gain of 32 dB and receive gain of 16 dB. The device operates on a 5 V supply with a current draw of 330 mA. It supports bandwidths up to 160 MHz and delivers a maximum data rate of 6 Mbps. Packaged in a QFN-24 SMD/SMT footprint, it functions within a temperature range of -40°C to +85°C.

RF Front End (LNA + PA) Feature Summary

• Integrated front-end module architecture optimized for wireless communication performance
• High linearity combined with ultra-low noise figure for signal integrity
• Compact form factor with integrated matching components

RF Front End (LNA + PA) Applications

• Wi-Fi 5 (802.11ac) access points
• Wireless routers
• Residential gateways
• Customer premises equipment

RF Front End (LNA + PA) Procurement Notes

Verify component authenticity through authorized channels as this part may be discontinued or obsolete. Confirm RoHS compliance status and moisture sensitivity levels prior to assembly. Ensure proper handling procedures are followed due to ESD sensitivity. Cross-reference datasheet specifications against current design requirements to validate compatibility with existing system architectures.

RF Front End (LNA + PA) Selection Notes

Select this component for applications requiring high gain and low noise in the 5 GHz ISM band. Evaluate thermal management capabilities given the 5 V operation and specific current consumption. Consider the QFN-24 package dimensions for PCB layout constraints. Verify that the supported 160 MHz bandwidth aligns with the target network standard requirements.

RF Front End (LNA + PA) Part Context

This component belongs to the QPF4518 series of RF front-end modules from Qorvo. It is specifically engineered for Wi-Fi 5 environments, offering a balance of power efficiency and signal quality. The module integrates necessary amplification and filtering stages into a single compact unit, reducing overall system complexity compared to discrete solutions.

RF Front End (LNA + PA) Replacement Considerations

Public confirmed substitute part numbers: QPF4519SR.