1 of 11

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

LNA VCC

RX OUT

TX IN

VREG

VCC

GND

ANT

C BT

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

SP3T

2F0 Filter

RF5725

2.4GHz TO 2.5GHz SINGLE-BAND

FRONT END MODULE

The RF5725 is a single-chip integrated front-end module (FEM) for high

performance WiFi applications in the 2.4GHz to 2.5GHz ISM band. This

FEM greatly reduces the number of external components, minimizing foot-

print and assembly cost of the overall 802.11b/g solution. The RF5725

has an integrated b/g power amplifier, LNA, a Coupler Power detector, and

TX filtering. It also is capable of switching between WiFi RX, WiFi TX, and

BTH RX/TX operations. This device is manufactured using GaAs HBT and

pHEMT processes on a 3mmx3mmx0.5mm 16-pin QFN package. This

module meets or exceeds the RF front-end needs of 802.11b/g WiFi RF

systems.

Features



Single Module Radio Front

End



Single Supply Voltage 3.0V to

5V



Integrated 2.4GHz to 2.5GHz

b/g Amplifier LNA, TX/RX



<3% EVM, 21dBm 11b Meet-

ing 11b Spectral Mask



Low Height Package, Suited

for SiP and CoB Designs

Applications



Cellular handsets



Mobile devices



Tablets



Consumer electronics



Gaming



Netbooks/Notebooks



TV/monitors/video



SmartEnergy

RF5725

Standard 25 piece bag

RF5725SR

Standard 100 piece reel

RF5725TR7

Standard 2500 piece reel

RF5725PCK-410

Fully assembled evaluation board tuned for 2.4GHz to

2.5GHz and 5 loose sample pieces

DS120214





Package Style: QFN, 16-pin, 3mmx3mmx0.5mm