QPF4291SR

RF Front End (LNA + PA) Overview

The QPF4291SR is a Wi-Fi 6 dual-path front-end module designed for the 2.402 GHz to 2.482 GHz ISM band. It integrates two transmit paths and one receive path within a single package. The device supports IEEE 802.11ax standards with configurable gain settings of 30 dB or 27 dB. Key electrical parameters include a noise figure of 2.0 dB, a supply voltage range of 3.3 V to 5.0 V, and a maximum operating temperature of +85°C. It utilizes a 34-WFQFN exposed pad package.

RF Front End (LNA + PA) Feature Summary

• Integrates dual transmit and single receive paths for compact system design
• Optimized for Wi-Fi 6 (802.11ax) performance requirements
• Provides selectable transmit gain configurations for flexible link budget management

RF Front End (LNA + PA) Applications

• Wi-Fi 6 access points and routers
• Wireless LAN infrastructure equipment
• IoT gateways requiring 2.4 GHz connectivity

RF Front End (LNA + PA) Procurement Notes

Verify component authenticity through authorized channels due to market availability fluctuations. Confirm package integrity upon receipt as moisture sensitivity requires proper handling. Validate datasheet revisions against current production status to ensure compatibility with existing designs. Cross-reference pin assignments with official documentation before PCB layout finalization.

RF Front End (LNA + PA) Selection Notes

Select this module when designing systems requiring integrated Wi-Fi 6 front-end solutions in the 2.4 GHz band. Consider its dual-path architecture for applications needing simultaneous transmission capabilities. Evaluate thermal management requirements given the exposed pad package type. Ensure power supply rails match the specified voltage range for optimal performance.

RF Front End (LNA + PA) Part Context

This component belongs to Qorvo's portfolio of wireless connectivity solutions. It represents an evolution in RF front-end integration targeting high-throughput wireless standards. The product line focuses on reducing board space while maintaining signal integrity for modern networking devices.

RF Front End (LNA + PA) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify end-of-life status and lead times with distributors if sourcing from secondary markets.