QPF4509 Front End Module by Qorvo

The QPF4509 from Qorvo is a Wi-Fi 7 (802.11be) Front-End Module (FEM) operating at 5 GHz, supporting all channels from UNII 1-4 (5.170 to 5.895 GHz). It has an integrated 6 GHz power amplifier (PA), a single pole two throw switch (SP2T), a coupler structure, and a bypassable low noise amplifier (LNA). This FEM also has an integrated coupler for DPD feedback training and a broad-range constant slope voltage logarithmic power detector for application feedback and power control. It delivers a Tx power of up to +26 dBm with a Tx gain of 29 dB and has an RX gain of 15 dB with a noise figure of 1.8 dB.

The QPF4509 optimized for a 5V supply voltage and minimizes power consumption to allow for systems that use digital pre-distortion to achieve the high linear output power and leading edge throughput for the RF chain. It requires a DC supply of 5 V and consumes less than 190 mA of current. This module is available in a laminate package that measures 3.0 x 3.0 mm. It is ideal for Wi-Fi 7 (802.11be) systems like access points, wireless routers, set-top boxes, customer premise equipment and Internet of Things (IoT) applications.

5 GHz Wi-Fi 7 High Power Front End Module

Key Features

• POUT = +12 dBm MCS13 EHT160 -47 dB Dynamic EVM
• POUT = +20.5 dBm MCS11 EHT160 -43 dB Dynamic EVM
• POUT = +23 dBm MCS9 VHT80 -35 dB Dynamic EVM
• POUT = +26 dBm MCS0 HT20 Spectral Mask Compliance
• Optimized for +5 V Operation
• 29 dB Tx Gain
• 1.8 dB Noise Figure
• 15 dB Rx Gain & 7 dB Bypass Loss
• Integrated RF Coupler
• Integrated DC Logarithmic Power Detector

The Qorvo QPF4509 is an integrated front end module (FEM) designed for Wi-Fi 7 (802.11be) systems. The small form factor and integrated matching minimizes layout area in the application. Performance is focused on optimizing the PA for a 5V supply voltage that minimizes power consumption to allow for systems that use digital pre-distortion to achieve the highest linear output power and leading edge throughput for the RF chain. This is done across a wide bandwidth enabling operation in all channels from UNII1-4 (5.170 to 5.895 GHz).

A coupler with RF output is integrated for DPD feedback training. For power control a broadrange, constant slope voltage logarithmic power detector is provided for application feedback. The QPF4509 integrates a 6 GHz power amplifier (PA), single pole two throw switch (SP2T), coupler structure and bypassable low noise amplifier (LNA) into a single device.

Frequency Min(GHz)	5.17
Frequency Max(GHz)	5.895
Functionality	PA, Switch, LNA
Wi-Fi Standards	Wi-Fi 7
Vcc(V)	5
11ac Pout(dBm)	16
11ac EVM(dB)	-47
11ac Current(mA)	130
11n Pout(dBm)	23
11n EVM(dB)	-35
11n Current(mA)	190
Tx Gain(dB)	29
OP1dB(dBm)	30
Rx Gain(dB)	15
NF(dB)	1.8
Bypass Loss(dB)	7
Rx Current(mA)	20
Package Type	Laminate
Package(mm)	3.0 x 3.0

RoHS	Yes
Lead Free	Yes
Halogen Free	Yes
ITAR Restricted	No
ECCN	5A991G

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Courtesy of Qorvo