QPF4591

Wi-Fi 6 Dual Path Front End Module

Data Sheet Brief Rev A, May 2021

Subject to change without notice | All rights reserved

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Product Overview

The Qorvo® QPF4591 is an integrated dual path front end

module (FEM) designed for Wi-Fi 6 (802.11ax) systems which

allows the operation of two separate RF chains to flow through

a single front end module. The compact form factor and

integrated matching minimizes layout area in the application and

greatly reduces the number of external components.

Performance is focused on optimizing a multi-mode PA for a

3.85V supply voltage that allows for optimal throughput based

on user conditions.

Receive path matches the optimal

technologies to maximize Rx sensitivity through noise figure

performance that is consistent over a wider variety of conditions

while maintaining low current draw.

The QPF4591 dual path front end module features chipset-

specific compatible control voltages to facilitate ease of use.

The QPF4591 integrates multiple 5 GHz power amplifiers (PA)

with power detector, transmit-receive switches and bypassable

low noise amplifiers (LNA) into a single device.

Functional Block Diagram

Top View

34 Pad 4 x 3 mm Laminate Package

Key Features

• 5150-5925 MHz

• Dual Path to Accommodate 2 RF Chains in a Single Device.

• Temperature Compensated Bias Network

• Multiple Transmit Bias Modes

EVM

• Optimized for +3.85 V Operation

• 30 dB Tx Gain

• 2.8 dB Noise Figure

• 15 dB Rx Gain & 4 dB Bypass Loss

• Integrated RF Power Detectors

Applications

• Access Points

• Wireless Routers

• Residential Gateways

• Customer Premise Equipment

• Internet of Things

Ordering Information

Part Number

Description

QPF4591SB

Sample bag with 5 pieces

QPF4591SR

7

” reel with 100 pieces

QPF4591TR13

13

” reel with 2,500 pieces

QPF4591EVB

Assembled Evaluation Board