1 of 8
Optimum Technology Matching® Applied
GaAs HBT
InGaP HBT
GaAs MESFET
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
Functional Block Diagram
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
Product Description
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
Ordering Information
RF IN
VREG
VC2
RF OUT
1
2
8
7
5
6
4
3
Bias Circuit
Input
Match
Interstage
Match
Power
Detector
2Fo
Filter
RF5222
3.0V TO 4.2V, 2.4GHz TO 2.5GHz
LINEAR POWER AMPLIFIER
The RF5222 is a linear, medium-power, high-efficiency, two-stage ampli-
fier IC designed specifically for battery-powered WLAN applications such
as PC cards, mini PCI, and compact flash applications. The device is man-
ufactured on an advanced InGaP Gallium Arsenide Heterojunction Bipolar
Transistor (HBT) process, and has been designed for use as the final RF
amplifier in 2.5GHz OFDM and other spread-spectrum transmitters. The
device is provided in a 2.2mmx2.2mm, 8-pin, QFN with a backside
ground. The RF5222 is designed to maintain linearity over a wide range of
supply voltage and power output. The RF5222 also has built-in power
detector and incorporates the input and interstage matching components
internally which reduces the component count used externally and makes
it easier to incorporate on any design.
Features
Single Power Supply 3.0V to
4.2V
26dB Minimum Gain, Input
Matched to 50
Ω
2.4GHz to 2.5GHz Frequency
Range
11g POUT=+17dBm@3% Typ
EVM, 125mA
Applications
IEEE802.11b/g/n WLAN
Applications
2.5GHz ISM Band Applica-
tions
Commercial and Consumer
Systems
Portable Battery-Powered
Equipment
Spread-Spectrum and MMDS
Systems
RF5222
3.0V to 4.2V, 2.4GHz to 2.5GHz Linear Power Amplifier
RF5222PCBA-41X
Fully Assembled Evaluation Board
Rev A0 DS070717
RoHS Compliant & Pb-Free Product
Package Style: QFN, 8-Pin, 2.2mmx2.2mmx0.45mm
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