1 of 2

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

TRX8 / GSM Rx

RF1291

GSM 1800/1900

GSM 850/900

Charge

Pump/

Decoder

TRX7 / GSM Rx

C

T

L

A

V

D

D

TRX3 / GSM Rx

TRX4 / GSM Rx

TRX5 / GSM Rx

TRX6 / GSM Rx

C

T

L

B

C

T

L

C

C

T

L

D

TRX2 / GSM Rx

TRX1 / GSM Rx

RF1291

SWITCH FILTER MODULE WITH

EIGHT LINEAR 3G/4G PATHS

The RF1291 Antenna Switch Module offers very low insertion loss along

with excellent linearity performance. The RF1291 is ideal for multi-mode

GSM, EDGE, UMTS, and LTE handset applications. This module integrates

low pass filtering on the GSM transmit paths, thus avoiding the need for

external harmonic attenuation. The RF1291 is compatible with +1.8 V con-

trol logic and is packaged in a compact 3.2mm x 3.2mm, 20-pin, Module

package which allows for a small solution size with no need for external

DC blocking capacitors when no external DC is applied to the device ports.

Features



Excellent Insertion Loss and

Isolation Performance



Eight Linear Paths Offer Band

Combination and

Air Interface Flexibility



Excellent GSM TX Harmonic

Attenuation



Integrated Antenna ESD

Protection



>2kV HBM ESD on all Paths



Fully Spec Compliant at 1.3V

Control Voltage



Broadband Performance Suit-

able for all Cellular Modula-

tion Schemes up to 3GHz



Very Low Current Consump-

tion



Compact

3.2mmx3.2mmx1.0mm(typ)

Laminate Module



Very High Linearity and Excel-

lent Harmonic Performance,

Ideally Suited for LTE Applica-

tions.

Applications



Cellular Handset Applications



Cellular Modems and USB

Devices



Multi-Mode GSM, EDGE,

WCDMA Applications

RF1291SWITCH FILTER MODULE WITH

RF1291

SP10T Antenna Switching Module

DSB120326



Package Style: 20-pin, 3.2 mm x 3.2 mm x 1.0 mm