1 of 7

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 customerservice@rfmd.com.

Ordering Information

BiFET HBT

LDMOS

1

2

3

9

8

7

6

5

4

12

GND

NC

RX_Out

ANT

10

11

GND

NC

RF5540

4.9GHz TO 5.85GHz SWITCH AND LNA FRONT

END SOLUTION

The RF5540 is designed specifically for high-performance WiFi applications in the

5GHz ISM band. This module integrates the LNA with bypass and an SPDT switch of

a Front End solution. The integrated input and output match reduces the number of

external components keeping cost down and utilizing minimum layout area for

implementation. The RF5540 is provided in a 2mmx2mmx0.5mm, 12-pin QFN

package. This LNA + Switch front-end solution meets or exceeds the specification

requirements of IEEE 802.11a RF systems.

Features



Single Supply Voltage 2.7V to

4.8V



Integrated 5GHz LNA With

Bypass and SPDT

Applications



IEEE802.11a WiFi Applications



Consumer Electronics



Mobile Devices



Gaming



General Purpose Switch and LNA

Solution for 4.9GHz to 5.85GHz

Frequency Range

DS130128



Package: QFN, 12-Pin, 2.0mmx2.0mmx0.5mm

RF5540

4.9GHz to

5.85GHz

Switch and

LNA Front End

Solution

RF5540SB

5-Piece Bag

RF5540SQ

25-Piece Bag

RF5540SR

Standard 100-Piece Bag

RF5540TR7

Standard 2500-Piece Reel

RF5540PCK-410

Fully Assembled Evaluation Board and 5 Loose

Sample Pieces