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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. ©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

BiFET HBT

RF IN

VGQ

Pin 1 (CUT)

RF OUT

VDQ

Pin 2

GND

BASE

RF3931

30W GaN WIDEBAND POWER AMPLIFIER

The RF3931 is a 48V 30W high power discrete amplifier designed for commercial

wireless infrastructure, cellular and WiMAX infrastructure, industrial/scien-

tific/medical, and general purpose broadband amplifier applications. Using an

advanced high power density Gallium Nitride (GaN) semiconductor process, these

high-performance amplifiers achieve high efficiency and flat gain over a broad fre-

quency range in a single amplifier design. The RF3931 is an unmatched GaN tran-

sistor packaged in a hermetic, flanged ceramic package. This package provides

excellent thermal stability through the use of advanced heat sink and power dissi-

pation technologies. Ease of integration is accomplished through the incorporation

of simple, optimized matching networks external to the package that provide wide-

band gain and power performance in a single amplifier.

Features



Broadband Operation DC to

3.5GHz



Advanced GaN HEMT

Technology



Advanced Heat-Sink

Technology



Gain = 15dB at 2GHz



48V Operation Typical

Performance at 900MHz

• Output Power 50W

•Drain Efficiency 65%

• -40°C to 85°C Operation

Applications



Commercial Wireless

Infrastructure



Cellular and WiMAX

Infrastructure



Civilian and Military Radar



General Purpose Broadband

Amplifiers



Public Mobile Radios



Industrial, Scientific and

Medical

RF3931S2

2-Piece sample bag

RF3931SB

5-Piece bag

RF3931SQ

25-Piece bag

RF3931SR

100 Pieces on 7” short reel

RF3931TR7

750 Pieces on 7” reel

RF3931PCK-411 Fully assembled evaluation board optimized for 2.14GHz; 48V

DS120406



Package Style: Hermetic 2-Pin Flanged Ceramic