1 of 8

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

RF1127

RF2

RF1

RFC

VDD V1

RF1127

BROADBAND LOW POWER SPDT SWITCH

The RF1127 is a single pole double throw (SPDT) switch designed for gen-

eral purpose switching applications which require very low insertion loss

and low power handling capability. The RF1127 features low insertion

loss, good isolation, and excellent linearity performance which makes it

ideally suited for battery operated applications requiring high performance

switching with very low DC power consumption. The RF1127 builds upon

RFMD’s GaAs pHEMT process and is packaged in a very compact, low pro-

file 2mmx1.3mmx0.385mm, leadless QFN package.

Features



Broadband Performance

Low Frequency to 3.5GHz



1-Bit Control: Requires Single

Control Line to Switch

Between Two RF Paths



Compatible With Low Voltage

Logic (1.8V)



Very Low Insertion Loss:

- 0.3dB at 1GHz (Typ)

- 0.4dB at 2GHz (Typ)



Excellent Linearity:

- IIP2>100dBm (Typ)

- IIP3>63dBm (Typ)



P0.1dB:23dBm (Typ)



Compact Footprint



2.0mmx1.3mmx0.385mm,

6-Pin, QFN

Applications



Cellular Handset Applications



Antenna Tuning Applications



IEEE802.11b/g WLAN Appli-

cations

RF1127

Broadband Low Power SPDT Switch

RF1127PCBA-410

Fully Assembled Evaluation Board

Rev A3 DS090904



Package Style: QFN, 6-pin, 2mmx1.3mmx0.385mm