1 of 9

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

COM_P

COM_N

RF3_P

RF3_N

RF1_P

RF1_N

V1 V2

RF2_P

RF2_N

V3

RF1236

BROADBAND MEDIUM POWER DIFFERENTIAL

SP3T SWITCH

The RF1236 is a single-pole three-throw (SP3T) differential switch

designed for general purpose switching applications which require very

low insertion loss and low power signal routing applications. The RF1236

features low insertion loss, high linearity, and very good harmonic charac-

teristics. The switch is operable from 1.8V to 3.6V control voltage. It is fab-

ricated with 0.5

m GaAs pHEMT process and is packaged in a very

compact 2.0mmx2.0mm, 12-pin, leadless QFN package.

Features



Broadband Frequency Perfor-

mance

Low Frequency - 3.5GHz



Very Low Insertion Loss:

0.3dB Typ. at 0.90GHz

0.55dB Typ. at 1.90GHz



Excellent Linearity Performance:

IIP2 Typ. 103dBm at 0.90GHz

IIP2 Typ. 100dBm at 1.90GHz



1.8V Capable for Low Power

Applications

Applications



Cellular Handset Applications



IEEE802.11b/g WLAN Applica-

tions



Multi-Mode GSM, W-CDMA Appli-

cations



WLAN Applications



SAW Filter Switching

RF1236

Broadband Medium Power Differential SP3T Switch

RF1236PCBA-410

Fully Assembled Evaluation Board

DS110418



Package Style: QFN, 12-Pin, 2.0mmx2.0mmx0.55mm