RFSW2044 - RF Micro Devices, Inc. (RFMD)

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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. ©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

BiFET HBT

LDMOS

RFOut

RFIN

GND

5678

1314

1516

GND

GNDGND

NC NC

RFSW2044

DC TO 25GHz SPST pHEMT GaAs SWITCH

RFMD’s RFSW2044 is a broadband absorptive SPST GaAs microwave monolithic

integrated circuit (MMIC) switch designed to operate from DC to 25GHz using the

RFMD FD05 0.5μm switch process. It features low insertion loss of 2.7dB at

25GHz and high isolation of 41dB at 25GHz while being packaged in a compact

low cost 3mm x 3mm QFN package for easy end use assembly. The switch uses

complementary control logic of -5/0V and does not require a separate bias supply.

Features

Low Insertion Loss: 2.7dB at

25GHz

High Isolation: 41dB at 25GHz

Excellent Return Loss

23nS Switching Speed

GaAs pHEMT Technology

Compact 3mmx3mm QFN

package

Applications

Broadband Communications

Test Instrumentation

Fiber Optics

Military

Aerospace

DS100901



Package: QFN, 16 pin, 0.8mmx3mmx3mm

RFSW2044DC

to 25G hz SPST

pHEMT GaAs

Switch

RFSW2044

RFSW2044SB 5-piece sample bag

RFSW2044PCK-410 Evaluation Board

2 of 11

RFSW2044

DS100901

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

Absolute Maximum Ratings

Parameter Rating Unit

Drain Bias Voltage (VCTRL)-10V

RF Port Power +21 dBm

Storage Temperature -55 to +150 °C

Operating Temperature -55 to +85 °C

ESD JESD22-A114 Human Body

Model (HBM)

Class 1A (All pads)

Parameter Specification Unit Condition

Min. Typ. Max.

Operating Frequency DC 25 GHz

Insertion Loss (0GHz to 5GHz) 1.0 1.3 dB ON State, All Temps

Insertion Loss (5GHz to 10GHz) 1.25 1.6 dB ON State, All Temps

Insertion Loss (10GHz to 15GHz) 1.6 2.1 dB ON State, All Temps

Insertion Loss (15GHz to 20GHz) 1.9 2.5 dB ON State, All Temps

Insertion Loss (20 GHz to 25 GHz) 2.7 3.8 dB ON State, All Temps

Isolation (DC to 25GHz) 30 45 dB OFF State, All Temps

Input Return Loss (DC to 25GHz) 8 20 dB ON State, All Temps

Input Return Loss (DC to 25GHz) 5 10 dB OFF State, All Temps

Output Return Loss (DC to 25GHz) 8 20 dB ON State, All Temps

Output Return Loss (DC to 25GHz) 5 10 dB OFF State, All Temps

OIP3 (2GHz to 20GHz) 44 47 dBm 100MHz spacing, 2dBm input, 25 °C

OIP2 (4GHz to 20GHz) 86 91 dBm 100MHz spacing, 2dBm input, 25 °C

Switching Speed 23 28 ns 50% control to 90% RF, All Temps

Control Current 6 15 µA Sum of all control lines, 25 °C

Control Voltage 0/-5 V

Caution! ESD sensitive device.

Exceeding any one or a combination of the Absolute Maximum Rating conditions may

cause permanent damage to the device. Extended application of Absolute Maximum

Rating conditions to the device may reduce device reliability. Specified typical perfor-

mance or functional operation of the device under Absolute Maximum Rating condi-

tions is not implied.

RoHS status based on EUDirective2002/95/EC (at time of this document revision).

The information in this publication is believed to be accurate and reliable. However, no

responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any

infringement of patents, or other rights of third parties, resulting from its use. No

license is granted by implication or otherwise under any patent or patent rights of

RFMD. RFMD reserves the right to change component circuitry, recommended appli-

cation circuitry and specifications at any time without prior notice.

3 of 11

RFSW2044

DS100901

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

4 of 11

RFSW2044

DS100901

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

5 of 11

RFSW2044

DS100901

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

6 of 11

RFSW2044

DS100901

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

7 of 11

RFSW2044

DS100901

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

Truth Table

High = -5V ±0.2V, Low = 0V, ±0.2V

Pin Function Description Interface Schematic

1, 2, 3, 4, 5,

9, 12, 16

NC No Connect

6, 8, 13, 15 GND Ground. Grounding via should be located as close as possible to

this pin.

14 RFOut RF output. These pins are DC coupled and matched to 50Ω from

DC to 25GHz.

10, 11 DC DC control for switch operation. Nominal operating voltage is -5V.

7RFIN

RF input. This pin is DC coupled and matched to 50Ω from DC to

25GHz.

Control Line RF Path

V1 V2 RFIn - RFOut

High Low ON (low loss)

Low High OFF (high isolation)

RFout

50ohm

2kohm

4.4pF

RFin

50ohm

8 of 11

RFSW2044

DS100901

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

Package Drawing

Maximum Height=1.0mm

Dimensional Tolerance=+0.05mm

9 of 11

RFSW2044

DS100901

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

Application Schematic

5 6 7 8

16 15 14 13

RFin

50 Ω μstrip DC Block*

RFout

50 Ω μstrip

DC Block*

Bypass

Cap**

Bypass

Cap**

* Not Required

** Not Required but may be necessary

in some applications to maintain noise

free control lines.

10 of 11

RFSW2044

DS100901

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

Evaluation Board Schematic

11 of 11

RFSW2044

DS100901

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

Evaluation Board Layout