QPF4559SB

RF Front End (LNA + PA) Overview

The Qorvo QPF4559SB is a 5 GHz Wi-Fi 7 high-power front-end module designed for 802.11be systems. It integrates a power amplifier, SP2T switch, and bypassable LNA into a single compact device. The module operates within the 5.17 GHz to 5.895 GHz frequency range with a noise figure of 1.6 dB. It provides 32 dB transmit gain and features integrated RF coupling and DC logarithmic power detection. Optimized for 5 V operation, it supports UNII1-4 channels with integrated harmonic filtering.

RF Front End (LNA + PA) Feature Summary

• Integrates PA, SP2T switch, and bypassable LNA in a single compact package
• Optimized for 5V supply voltage to balance power consumption and linear output
• Includes integrated RF coupler and DC logarithmic power detector for system feedback
• Provides chip-level filtering for second and third harmonics with 2.4 GHz suppression

RF Front End (LNA + PA) Applications

• Access points
• Wireless routers
• Residential gateways
• Client devices
• Internet of Things (IoT)

RF Front End (LNA + PA) Procurement Notes

Verify the specific suffix against official Qorvo documentation to confirm pinout and electrical characteristics. Ensure compatibility with the target PCB layout and thermal requirements. Confirm availability status through authorized distributors as supply levels may vary. Validate that the selected variant meets all regulatory spectral mask compliance for the intended market.

RF Front End (LNA + PA) Selection Notes

Select this module for applications requiring high linearity and compact size in 5 GHz Wi-Fi 7 designs. The integrated matching reduces layout area compared to discrete solutions. Consider the 5V optimization for power efficiency. Ensure the design supports the required control signals for the SP2T switch and power detector interface.

RF Front End (LNA + PA) Part Context

The QPF4559 series represents Qorvo's solution for next-generation Wi-Fi standards. This specific SB variant belongs to the high-power FEM family targeting dense deployment scenarios. It complements other Qorvo wireless components by providing integrated signal conditioning and switching capabilities for robust connectivity.

RF Front End (LNA + PA) Replacement Considerations

QPF4559SR

RF Front End (LNA + PA) FAQ

What is the operating frequency range?

The module operates from 5.17 GHz to 5.895 GHz.

Does the module include filtering?

Yes, it includes integrated chip-level filtering for second and third harmonics and 2.4 GHz suppression.