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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. ©2012, 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

RX

GN D

N/C

VC C

VD D

3

1

12

2

13

11

10

9

8

7

6

5

4

14

15

16

GN D

GN D

VCC

2fo

RFFM4591

3.0V TO TO 3.6V, 4.9GHz TO 5.85GHz

802.11a/n/ac FRONT END MODULE

The RFFM4591 provides a complete integrated solution in a single front

end module (FEM) for WiFi 802.11a/n/ac systems. The ultra-small form

factor and integrated matching minimizes the layout area in the cus-

tomer's application and greatly reduces the number of external compo-

nents. This simplifies the total front end solution by reducing the bill of

materials, system footprint, and manufacturability cost. The RFFM4591

integrates a power amplifier (PA), single pole double throw switch (SPDT),

LNA with bypass, and a power detector coupler for improved accuracy. The

device is provided in a 3mm x 3mm x 1.05mm, 16-pin laminate package.

This module meets or exceeds the RF front end needs of IEEE

802.11a/n/ac WiFi RF systems.

Features



Integrated 4.9GHz to

5.85GHz Amplifier, SPDT

Tx/Rx Switch, LNA with

Bypass, and Power Detector

Coupler



2.5% Dynamic EVM



MCS9, 1.8% Dynamic EVM

Applications



IEEE802.11a/n/ac WiFi

Applications



4.9GHz to 5.85GHz ISM Band

Applications



Portable Battery-Powered

Equipment



WiFi Access Points, Gateways

and Set Top Boxes

RFFM4591PCK-410

RFFM4591 Eval Board with 5-piece bag

RFFM4591SB

5-Piece bag

RFFM4591SR

100-Piece reel

RFFM4591TR7

2500-Piece reel

RFFM4591SQ

25-Piece bag

DS130510

Package: Laminate, 16-pin, 3.0mm x 3.0mm x 1.05mm