HMC541LP3E - ANALOG DEVICES

ATTENUATORS - SMT

5 - 176

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

HMC541LP3 / 541LP3E

10 dB GaAs MMIC 1-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 5 GHz

v01.1005

Functional Diagram

Electrical Speci cations,

TA = +25° C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted)

The HMC541LP3 / HMC541LP3E is ideal for both RF

and IF applications:

• Cellular Infrastructure

• ISM, MMDS, WLAN, WiMAX, WiBro

• Microwave Radio & VSAT

• Test Equipment and Sensors

± 0.2 dB Typical Step Error

Low Insertion Loss: 1 dB

High IP3: +50 dBm

Single Control Line

TTL/CMOS Compatible Control

Single +5V Supply

3x3 mm SMT Package

The HMC541LP3 & HMC541LP3E are broadband

1-bit GaAs IC digital attenuators in low cost lead-

less surface mount packages. This single posi-

tive control line digital attenuator utilizes off chip

AC ground capacitors for near DC operation,

making it suitable for a wide variety of RF and IF

applications. Covering DC to 5 GHz, the insertion

loss is less than 1 dB typical. Attenuation accuracy

is excellent at ± 0.2 dB typical step error. The attenu-

ator also features a high IIP3 of +50 dBm. One TTL/

CMOS control input is used to select the attenuation

state. A single Vdd bias of +5V is required.

Parameter Frequency (GHz) Min. Typ. Max. Units

Insertion Loss

DC - 2.0 GHz

2.0 - 3.5 GHz

3.5 - 5.0 GHz

0.5

1.0

2.0

0.8

1.3

2.3

Attenuation Range DC - 5 GHz 10 dB

Return Loss (RF1 & RF2, All Atten. States) DC - 2.5 GHz

2.5 - 5.0 GHz

Attenuation Accuracy: (Referenced to Insertion Loss) DC - 5 GHz ± 0.4 Max. dB

Input Power for 0.1 dB Compression 0.1 - 5.0 GHz 27 dBm

Input Third Order Intercept Point

(Two-Tone Input Power= 0 dBm Each Tone) 0.1 - 5.0 GHz 50 dBm

Switching Characteristics

tRISE, tFALL (10/90% RF)

tON, tOFF (50% CTL to 10/90% RF)

DC - 5 GHz

Typical Applications Features

General Description

OBSOLETE

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

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

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D

ATTENUATORS - SMT

5 - 177

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

Return Loss RF1, RF2Insertion Loss

Normalized Attenuation

Bit Error vs. Frequency

Relative Phase vs. Frequency

HMC541LP3 / 541LP3E

v01.1005 10 dB GaAs MMIC 1-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 5 GHz

-4

-3

-2

-1

0123456

+25 C

+85 C

-40 C

INSERTION LOSS (dB)

FREQUENCY (GHz)

-12

-10

-8

-6

-4

-2

0123456

NORMALIZED ATTENUATION (dB)

FREQUENCY (GHz)

-40

-30

-20

-10

0123456

RELATIVE PHASE (deg)

FREQUENCY (GHz)

-1

-0.6

-0.2

0.2

0.6

0123456

BIT ERROR (dB)

FREQUENCY (GHz)

-40

-30

-20

-10

0123456

RETURN LOSS (dB)

FREQUENCY (GHz)

10 dB

I.L.dB

Input IP3 vs. Frequency

0123456

I.L. dB

10 dB

IP3 (dBm)

FREQUENCY (GHz)

OBSOLETE

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

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

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D

ATTENUATORS - SMT

5 - 178

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

Truth Table

Control Voltage

Bias Voltage & Current

Vdd = +5.0 Vdc ± 10%

Vdd

(VDC)

Idd (Typ.)

(mA)

+4.5 1.3

+5.0 1.5

+5.5 1.7

State Bias Condition

Low 0 to +0.8V @ -5 uA Typ.

High +2.0 to + 5.0 Vdc @ 40 uA Typ.

Note: Vdd = +5V

Control Voltage Input Attenuation State

RF1 - RF2

10 dB

High Reference I.L.

Low 10 dB

HMC541LP3 / 541LP3E

v01.1005 10 dB GaAs MMIC 1-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 5 GHz

OBSOLETE

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

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

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D

ATTENUATORS - SMT

5 - 179

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

Absolute Maximum Ratings

Outline Drawing

RF Input Power (DC - 5 GHz) +27 dBm (T = +85 °C)

Control Voltage Range (V1) -1V to Vdd +1V

Bias Voltage (Vdd) +7.0 Vdc

Channel Temperature 150 °C

Continuous Pdiss (T = 85 °C)

(derate 14.7 mW/°C above 85 °C) 0.96 W

Thermal Resistance 68 °C/W

Storage Temperature -65 to +150 °C

Operating Temperature -40 to +85 °C

ESD Sensitivity (HBM) Class 1B

NOTES:

1. LEADFRAME MATERIAL: COPPER ALLOY

2. DIMENSIONS ARE IN INCHES [MILLIMETERS]

3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE

4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.

PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.

5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.

6. ALL GROUND LEADS AND GROUND PADDLE MUST BE

SOLDERED TO PCB RF GROUND.

7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED

LAND PATTERN.

ELECTROSTATIC SENSITIVE DEVICE

OBSERVE HANDLING PRECAUTIONS

Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]

HMC541LP3 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] 541

XXXX

HMC541LP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] 541

XXXX

[1] Max peak re ow temperature of 235 °C

[2] Max peak re ow temperature of 260 °C

[3] 4-Digit lot number XXXX

Package Information

HMC541LP3 / 541LP3E

v01.1005 10 dB GaAs MMIC 1-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 5 GHz

OBSOLETE

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

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

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D

ATTENUATORS - SMT

5 - 180

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

Pin Descriptions

Pin Number Function Description Interface Schematic

1Vdd Supply Voltage.

2, 11 RF1, RF2

This pin is DC coupled and matched to 50 Ohm.

Blocking capacitors are required.

Select value based on lowest frequency of operation.

3, 4, 6, 7,

9, 10, 12,

13, 15, 16

N/C These pins should be connected to PCB RF ground to

maximize performance.

5, 8 ACG1, ACG2

External capacitor to ground is required. Select value for

lowest frequency of operation. Place capacitor as close

to pins as possible.

14 V1 See truth table and control voltage table.

GND Package bottom has an exposed metal paddle that must be

connected to RF Ground.

Application Circuit

HMC541LP3 / 541LP3E

v01.1005 10 dB GaAs MMIC 1-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 5 GHz

Recommended Component Values

C1 - C3 1,000 pF ± 10%

C4, C5 330 pF ± 10%

OBSOLETE

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

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

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D

ATTENUATORS - SMT

5 - 181

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

Evaluation PCB

The circuit board used in the  nal application should

use RF circuit design techniques. Signal lines

should have 50 ohm impedance while the package

ground leads and exposed paddle should be con-

nected directly to the ground plane similar to that

shown. A sufficient number of via holes should be

used to connect the top and bottom ground planes.

The evaluation circuit board shown is available from

Hittite upon request.

List of Material for Evaluation PCB 111317 [1]

Item Description

J1 - J2 PCB Mount SMA Connector

J3 - J5 DC Connector

C1 - C3 1000 pF Capacitor, 0402 Pkg.

C4 - C5 330 pF Capacitor, 0402 Pkg.

U1 HMC541LP3 / HMC541LP3E

Digital Attenuator

PCB [2] 111290 Evaluation PCB

[1] Reference this number when ordering complete evaluation PCB

[2] Circuit Board Material: Rogers 4350

HMC541LP3 / 541LP3E

v01.1005 10 dB GaAs MMIC 1-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 5 GHz

OBSOLETE

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

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

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D