QPF4609SR

RF Front End (LNA + PA) Overview

The QPF4609SR is an integrated front-end module (FEM) designed for Wi-Fi 7 (802.11be) systems operating in the UNII5-8 band (5.925 GHz to 7.125 GHz). It integrates a power amplifier, SP2T switch, coupler, and bypassable LNA. Key electrical parameters include a Tx gain of 32 dB, noise figure of 1.8 dB, and operation at +5 V supply voltage. The device supports high linear output power with DPD feedback via an integrated RF coupler and includes a DC logarithmic power detector for control.

RF Front End (LNA + PA) Feature Summary

• Integrates PA, SP2T switch, coupler, and bypassable LNA in a single small form factor
• Optimized for +5V operation to minimize power consumption while maintaining high linearity
• Includes integrated RF coupler for DPD feedback training
• Features wide-range constant-slope voltage logarithmic power detector

RF Front End (LNA + PA) Applications

• Access points
• Wireless routers
• Set-top boxes
• Internet of Things (IoT)

RF Front End (LNA + PA) Procurement Notes

Verify the specific suffix 'SR' against the manufacturer's official datasheet to confirm packaging details such as reel or cut tape specifications. Ensure compatibility with SMD/SMT mounting requirements and check for moisture sensitivity handling instructions during storage and assembly processes.

RF Front End (LNA + PA) Selection Notes

Select this component for applications requiring high-power transmission in the 6 GHz Wi-Fi 7 spectrum. The integrated design minimizes layout area compared to discrete solutions. Consider the need for digital pre-distortion support due to the integrated coupler and verify that the system can accommodate the +5V operating voltage requirement.

RF Front End (LNA + PA) Part Context

This part belongs to the Qorvo QPF4609E series of RF front-end modules. It is specifically engineered for next-generation wireless standards, offering a compact solution that replaces multiple discrete components. The series focuses on optimizing performance for broadband channels within the UNII5-8 range.

RF Front End (LNA + PA) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical parameter equivalence before considering any alternative components from other manufacturers.