QM42500ASR

RF Front End (LNA + PA) Overview

The QM42500ASR is a Qorvo integrated mobile Wi-Fi Front End Module (FEM) designed for Wi-Fi 7 (802.11be) systems. It operates within a wide supply voltage range of 3.0 V to 5.0 V, with a typical input voltage of 3.85 V. The module integrates a multi-TX state 2.4 GHz Wi-Fi power amplifier, an SP4T antenna switch, a bypassable LNA, and a power coupler. Key electrical parameters include a transmit gain of 29 dB, a noise figure of 1.8 dB, and receive gains of 17 dB (high) or 16 dB (low current). Output power reaches +16.5 dBm at MCS13 HE40 and +20.5 dBm at MCS7 HT40.

RF Front End (LNA + PA) Feature Summary

• Integrates PA, SP4T switch, LNA, and power coupler in a single compact package.
• Optimized for wide supply voltage range to enhance efficiency across operating conditions.
• Includes integrated chip-level filtering for harmonics and 5 GHz suppression for DBDC operation.
• Features built-in power coupling to support closed-loop power control and DPD optimization.

RF Front End (LNA + PA) Applications

• Smartphones
• Tablets
• Computers
• VR/AR glasses
• Wi-Fi routers

RF Front End (LNA + PA) Procurement Notes

Verify the specific ordering suffix when sourcing components, as variations such as SR may indicate different packaging formats like cut tape versus reel. Confirm that the received part matches the required RoHS compliance status and moisture sensitivity level specifications. Ensure compatibility with the target system's RF architecture before finalizing procurement orders to avoid integration issues.

RF Front End (LNA + PA) Selection Notes

Select this module for applications requiring high linearity and efficient power consumption in Wi-Fi 7 environments. The integrated design reduces layout area compared to discrete solutions. Consider the wide voltage tolerance if the host system experiences significant supply fluctuations. Evaluate the need for external filtering based on the internal harmonic suppression capabilities provided by the component.

RF Front End (LNA + PA) Part Context

This component belongs to Qorvo’s portfolio of wireless connectivity solutions, specifically targeting next-generation WLAN standards. It complements other RF front-end products by providing specialized support for 2.4 GHz bands in dense interference environments. The module represents a shift toward higher integration levels to meet the stringent size and performance demands of modern portable electronics.

RF Front End (LNA + PA) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and functional compatibility carefully if considering alternative vendors, as internal architectures may differ significantly despite similar nominal specifications.