1 of 19

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 MEMS

LDMOS

RF IN

RF IN

NC

NC

NC

RF OUT

RF OUT

RFOUT/

VC2

16

15

14

13

5

6

7

8

9

10

11

12

4

3

2

1

Input

Match

Bias

2nd

Inter-

Stage

Match

1st

RF5112

3V TO 5V, 2.4GHz TO 2.5GHz

LINEAR POWER AMPLIFIER

The RF5112 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 3mmx3mmx0.9mm, 16-pin,

QFN with a backside ground. The RF5112 is designed to maintain linearity over a

wide range of supply voltage and power output.

Features



Single Power Supply 3.0V to

5.0V



+23dBm, <4%EVM, 250mA at



+21dBm, <4.0%EVM, 185mA



28dB Typical Small Signal Gain



50

 Input and Interstage Match-

ing



2400MHz to 2500MHz Fre-

quency Range

Applications



IEEE802.11b/g/n WiFi Applica-

tions



2.5GHz ISM Band Applications



Commercial and Consumer Sys-

tems



Portable Battery-Powered Equip-

ment



Spread-Spectrum and MMDS

Systems

RF5112

Standard 25 piece bag

RF5112SR

Standard 100 piece reel

RF5112TR7

Standard 2500 piece reel

RF5112WL50PCK-41XFully Assembled Evaluation Board Kit (5.0V Tune)

RF5112WL33PCK-41XFully Assembled Evaluation Board Kit (3.3V Tune)

DS110617



Package Style: QFN, 16-Pin, 3mmx3mmx0.9mm