RF5122 Datasheet, PDF (1/11 Pages) RF Micro Devices – 3V TO 3.6V, 2.4GHz TO 2.5GHz LINEAR POWER AMPLIFIER

RF5122
3V TO 3.6V, 2.4GHz TO 2.5GHz
LINEAR POWER AMPLIFIER
Package Style: QFN, 8-Pin, 2.2mmx2.2mmx0.6mm
Features
 Single Power Supply 3.0V to
3.6 V
 24.5dB Minimum Gain
 Input and Output Matched to
50 
 2400MHz to 2500MHz Fre-
quency Range
 +18dBm @ <2.5% typ EVM,
120mA @ 3.3V_CC
8
RF IN 1
Input
Match
VREG 2
3
7
N _Interstage
Match
Output
Match
6 VC2
IG _{Bias Circuit}
Power
Detector
5 RF OUT
DES⁴
Applications
 IEEE802.11b/g/n WiFi Appli-
W ^cations
 2.5GHz ISM Band Applica-
E _tions
 Commercial and Consumer
N _Systems
 Portable Battery-Powered
Equipment
R _{ Spread-Spectrum and MMDS}
FO ^Systems
Functional Block Diagram
Product Description
The RF5122 is a linear, medium-power, high-efficiency, two-stage amplifier IC
designed specifically for battery-powered WiFi applications such as PC cards, mini
PCI, and compact flash applications. The device is manufactured 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 RF5122 is designed to maintain linearity over a wide range
of supply voltages and power outputs. The RF5122 also has built-in power detector
and incorporates the input, interstage, and output matching components internally
which reduces the component count used externally and makes it easier to incorpo-
rate on any design.
T _{Ordering Information}
O _RF5122
N ^RF5122SR
Standard 25 piece bag
Standard 100 piece reel
RF5122TR7
Standard 2500 piece reel
RF5122PCK-410 Fully assembled evaluation board tuned for 2.4GHz to
2.5GHz and 5 loose sample pieces
DS110617
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
RF MEMS
LDMOS
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.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
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