HMC470LP3E-AN - Analog Devices

ATTENUATORS - SMT

5 - 144

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

HMC470LP3 / 470LP3E

1 dB LSB GaAs MMIC 5-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 3 GHz

v04.1108

Functional Diagram

Electrical Speci cations,

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

The HMC470LP3(E) is ideal for:

• Cellular; UMTS/3G Infrastructure

• ISM, MMDS, WLAN, WiMAX

• Microwave Radio & VSAT

• Test Equipment and Sensors

1 dB LSB Steps to 31 dB

Single Control Line Per Bit

TTL/CMOS Compatible Control

± 0.3 dB Typical Step Error

Single +5V Supply

16 Lead 3x3mm SMT Package: 9mm

Included in the HMC-DK004 Designer’s Kit

The HMC470LP3(E) is a broadband 5-bit GaAs IC

digital attenuators in low cost leadless surface mo-

unt packages. This single positive control line per

bit digital attenuator incorporates off chip AC ground

capacitors for near DC operation, making it suitable

for a wide variety of RF and IF applications. Covering

DC to 3 GHz, the insertion loss is less than 1.5 dB

typical. The attenuator bit values are 1 (LSB), 2, 4, 8,

and 16 dB for a total attenuation of 31 dB. Attenuation

accuracy is excellent at ± 0.3 dB typical step error with

an IIP3 of +45 dBm. Five TTL/CMOS control inputs

are used to select each attenuation state. A single Vdd

bias of +5V is required.

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

Insertion Loss

DC - 1.5 GHz

1.5 - 2.3 GHz

2.3 - 3.0 GHz

1.3

1.4

1.7

1.6

1.7

2.0

Attenuation Range DC - 3 GHz 31 dB

Return Loss (RF1 & RF2, All Atten. States) DC - 3 GHz 17 dB

Attenuation Accuracy: (Referenced to Insertion Loss)

All Attenuation States

1.0 - 15.0 dB States

16.0 - 31.0 dB States

DC - 2.3 GHz

2.3 - 3.0 GHz

± (0.3 + 2% of Atten. Setting) Max.

± (0.3 + 3% of Atten. Setting) Max.

± (0.3 + 6% of Atten. Setting) Max.

Input Power for 0.1 dB Compression 0.1 - 3.0 GHz 20 dBm

Input Third Order Intercept Point

(Two-Tone Input Power= 0 dBm Each Tone)

REF - 15 dB

States

16 - 31 dB States

0.1 - 3.0 GHz 45

dBm

Switching Characteristics

tRISE, tFALL (10/90% RF)

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

DC - 3 GHz

160

180

Typical Applications Features

General Description

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

OBSOLETE

ATTENUATORS - SMT

5 - 145

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, RF2

(Only Major States are Shown)

Insertion Loss

Normalized Attenuation

(Only Major States are Shown)

Bit Error vs. Frequency

(Only Major States are Shown)

Relative Phase vs. Frequency

(Only Major States are Shown)

Bit Error vs. Attenuation State

-3

-2.5

-2

-1.5

-1

-0.5

0 0.5 1 1.5 2 2.5 3 3.5 4

+25 C

+85 C

-40 C

INSERTION LOSS (dB)

FREQUENCY (GHz)

-35

-30

-25

-20

-15

-10

-5

0 0.5 1 1.5 2 2.5 3 3.5 4

RETURN LOSS (dB)

FREQUENCY (GHz)

31 dB

16 dB

1 dB

2 dB

4 dB

I.L.dB

8 dB

-35

-30

-25

-20

-15

-10

-5

00.511.522.533.54

NORMALIZED ATTENUATION (dB)

FREQUENCY (GHz)

-1

-0.5

0.5

1.5

0 4 8 12 16 20 24 28 32

BIT ERROR (dB)

ATTENUATION STATE (dB)

3 GHz

40 MHz

500 MHz

2 GHz1 GHz

100 MHz

-2

-1.5

-1

-0.5

0.5

1.5

0 0.5 1 1.5 2 2.5 3 3.5 4

BIT ERROR (dB)

FREQUENCY (GHz)

16 dB

31 dB

1-8 dB

-40

-20

100

0 0.5 1 1.5 2 2.5 3 3.5 4

RELATIVE PHASE (deg)

FREQUENCY (GHz)

31 dB

16 dB

8 dB

1-4 dB

HMC470LP3 / 470LP3E

v04.1108

1 dB LSB GaAs MMIC 5-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 3 GHz

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

OBSOLETE

ATTENUATORS - SMT

5 - 146

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

Worst Case Step Error

Between Successive Attenuation States

Vdd = +5V ± 10%

Vdd (V) Idd (Typ.)

(mA)

+4.5 4.0

+5.0 4.2

+5.5 4.4

State Bias Condition

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

High +2.0 to + 5 Vdc @ 40 uA Typ.

Note: Vdd = +5V

Control Voltage Input Attenuation

State

RF1 - RF2

16 dB

8 dB

4 dB

2 dB

1 dB

High High High High High Reference

I.L.

High High High High Low 1 dB

High High High Low High 2 dB

High High Low High High 4 dB

High Low High High High 8 dB

Low High High High High 16 dB

Low Low Low Low Low 31 dB

Any combination of the above states will provide an attenuation

approximately equal to the sum of the bits selected.

-1

-0.6

-0.2

0.2

0.6

0 0.5 1 1.5 2 2.5 3 3.5 4

STEP ERROR (dB)

FREQUENCY (GHz)

HMC470LP3 / 470LP3E

v04.1108

1 dB LSB GaAs MMIC 5-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 3 GHz

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

OBSOLETE

ATTENUATORS - SMT

5 - 147

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 - 3 GHz) +27 dBm (T = +85 °C)

Control Voltage Range (V1 to V5) -1V to Vdd +1V

Bias Voltage (Vdd) +7V

Channel Temperature 150 °C

Continuous Pdiss (T = 85 °C)

(derate 7.7 mW/°C above 85 °C) 0.5 W

Thermal Resistance 130 °C/W

Storage Temperature -65 to +150 °C

Operating Temperature -40 to +85 °C

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]

HMC470LP3 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] 470

XXXX

HMC470LP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] 470

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

HMC470LP3 / 470LP3E

v04.1108

1 dB LSB GaAs MMIC 5-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 3 GHz

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

OBSOLETE

ATTENUATORS - SMT

5 - 148

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

maximize performance.

4 - 9 ACG1 - ACG6

External capacitor to ground is required. Select value for

lowest frequency of operation. Place capacitor as close

to pins as possible.

12 - 16 V1 - V5 See truth table and control voltage table.

GND Package bottom has an exposed metal paddle that must also

be connected to RF Ground.

Application Circuit

HMC470LP3 / 470LP3E

v04.1108

1 dB LSB GaAs MMIC 5-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 3 GHz

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

OBSOLETE

ATTENUATORS - SMT

5 - 149

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 Materials for Evaluation PCB 107006 [1]

Item Description

J1 - J2 PC Mount SMA Connector

J3 12 Pin DC Connector

C1 1000 pF Capacitor, 0603 Pkg.

C2, C3 1000 pF Capacitor, 0402 Pkg.

C4 - C7 330 pF Capacitor, 0402 Pkg.

U1 HMC470LP3 / HMC470LP3E

Digital Attenuator

PCB [2] 106978 Evaluation PCB

[1] Reference this number when ordering complete evaluation PCB

[2] Circuit Board Material: Rogers 4350Re

HMC470LP3 / 470LP3E

v04.1108

1 dB LSB GaAs MMIC 5-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 3 GHz

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

OBSOLETE