QPF7221
2.4GHz Wi-Fi Front End Module (iFEM)
®
General Description
The QPF7221 provides a complete integrated solution in a
single front end module (FEM) for Wi-Fi 802.11b/g/n/ac/ax
systems. The small form factor and integrated matching
minimizes layout area in the application and greatly
reduces the number of external components.
The FEM allows true 5V supply without any modifications
to the supply lines and performance is a balance of
maximizing on highest linear output power and leading
edge throughput. The FEM also provides state of the art
LTE coexistence Rx immunity for maximum range and
coverage by integrating high performance temperature
stable BAW filtering on receive chain.
22 Pad 3 x 4.5 x 1ꢀmm Laminate Package
Product Features
• 2.4GHz Wi-Fi Channel 1 through 13
• Integrated Rx coexistence BAW with 40 dB rejection in
LTE bands & 5GHz
The QPF7221 integrates a 2GHz power amplifier (PA),
single pole two throw switch (SP2T) and bypassable low
noise amplifier (LNA) and an Rx BAW filter into a single
device.
• POUT = +22dBm MCS7 HT40 -30dB Dynamic EVM
• POUT = +21dBm MCS8 HT40 -35dB Dynamic EVM
• POUT = +18dBm MCS11 HE40 -43dB Dynamic EVM
• POUT = +25dBm MCS0 Spectral Mask Compliance
• Optimized for +5 V supply (supports 3.3V operation)
• 34 dB Tx Gain
Functional Block Diagram
• 2.0 dB Noise Figure
• 15 dB Rx Gain & 10.5 dB Bypass Loss
Applications
PDET
VCC2
VCC1
PAEN
GND
1
2
3
4
5
6
7
18
17
16
15
14
13
12
C1
• Access Points
C0
• Wireless Routers
GND
VDD
GND
GND
GND
• Residential Gateways
• Customer Premise Equipment
• Internet of Things
GND
Ordering Information
GND
Part No.
Description
QPF7221SB
QPF7221SQ
QPF7221SR
QPF7221TR13
QPF7221PCK-01
Sample bag with 5 pieces
Sample bag with 25 pieces
7” reel with 100 pieces
13” reel with 5000 pieces
Assembled Evaluation Board
Top View
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Datasheet Brief revB 20180712 | Subject to change without notice
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