HMC467LP3E - Hittite Microwave Corporation

ATTENUATORS - SMT

5 - 132

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

Functional Diagram

Electrical Speci cations, TA = +25° C, With Vdd = +5V & Vctl = 0/+5V*

The HMC467LP3 / HMC467LP3E is ideal for:

• Cellular; UMTS/3G Infrastructure

• Fixed Wireless & WLL

• Microwave Radio & VSAT

• Test Equipment

2 dB LSB Steps to 6 dB

High IP3: +50 dBm

± 0.2 dB Typical Bit Error

Single Control Line Per Bit

Single +5V Supply

3x3 mm SMT Package

The HMC467LP3 & HMC467LP3E are broadband

2-bit GaAs IC digital attenuators in low cost leadless

surface mount packages. Covering DC to 6.0 GHz, the

insertion loss is less than 0.7 dB typical. The attenuator

bit values are 2 (LSB) and 4 dB for a total attenuation

of 6 dB. Attenuation accuracy is excellent at ± 0.2 dB

typical step error with an IIP3 of +50 dBm. Two control

voltage inputs, toggled between 0 and +5V, 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 - 2.5 GHz

2.5 - 6.0 GHz

0.5

0.8

1.2

Attenuation Range DC - 6 GHz 6 dB

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

2.5 - 6.0 GHz

Attenuation Accuracy:

(Referenced to Insertion Loss)

2 dB State

4, 6 dB States DC - 6 GHz ± 0.2 + 2% of Atten. Setting Max.

± 0.4 + 2% of Atten. Setting Max.

Input Power for 0.1 dB Compression 0.25 - 6.0 GHz 22 dBm

Input Third Order Intercept Point

(Two-Tone Input Power= 0 dBm Each Tone) 0.25 - 6.0 GHz 50 dBm

Switching Characteristics

tRISE, tFALL (10/90% RF)

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

DC - 6 GHz

135

155

* Bypass capacitor connecting ACG1 & ACG2 to RF ground required per pin description herein.

v01.0705 2 dB LSB GaAs MMIC 2-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 6 GHz

HMC467LP3 / 467LP3E

Typical Applications Features

General Description

ATTENUATORS - SMT

5 - 133

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 4.5 5 5.5 6

+25 C

+85 C

-40 C

INSERTION LOSS (dB)

FREQUENCY (GHz)

-30

-25

-20

-15

-10

-5

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6

2 dB

4 dB

6 dB

RETURN LOSS (dB)

FREQUENCY (GHz)

-10

-8

-6

-4

-2

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6

2 dB

4 dB

6 dB

NORMALIZED ATTENUATION (dB)

FREQUENCY (GHz)

-1

-0.8

-0.6

-0.4

-0.2

0.2

0.4

0.6

0.8

246

80 MHz

500 MHz

1 GHz

2 GHz

3 GHz

4 GHz

5 GHz

6 GHz

BIT ERROR (dB)

ATTENUATION STATE (dB)

-1

-0.6

-0.2

0.2

0.6

0123456

2 dB

4 dB

6 dB

BIT ERROR (dB)

FREQUENCY (GHz)

-10

-5

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6

2 dB

4 dB

6 dB

RELATIVE PHASE (deg)

FREQUENCY (GHz)

v01.0705 2 dB LSB GaAs MMIC 2-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 6 GHz

HMC467LP3 / 467LP3E

ATTENUATORS - SMT

5 - 134

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

TTL/CMOS Control Voltages

Worst Case Step Error

Between Successive Attenuation States

-1

-0.6

-0.2

0.2

0.6

0123456

2 dB

4 dB

6 dB

STEP ERROR (dB)

FREQUENCY (GHz)

State Bias Condition

Low 0 to 0.8 Vdc @ -5 uA Typ.

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

Control Voltage Input

Attenuation Setting

RF1 - RF2

4 dB

2 dB

High High Reference I.L.

High Low 2 dB

Low High 4 dB

Low Low 6 dB

Max. Atten.

Any combination of the above states will provide an attenuation

approximately equal to the sum of the bits selected.

Bias Voltage & Current

Vdd Range= +5.0 Vdc ± 10%

Vdd

(Vdc)

Idd (Typ.)

(mA)

Idd (Max.)

(mA)

+5.0 0.7 1.2

v01.0705 2 dB LSB GaAs MMIC 2-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 6 GHz

HMC467LP3 / 467LP3E

ATTENUATORS - SMT

5 - 135

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

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.

Control Voltage (V1, V2) -0.5 Vdc to Vdd +1 Vdc

Bias Voltage (Vdd) +7.0 Vdc

Staorage Temperature -65 to +150 °C

Operating Temperature -40 to +85 °C

RF Input Power +30 dBm

ESD Sensitivity (HBM) Class 1A

ELECTROSTATIC SENSITIVE DEVICE

OBSERVE HANDLING PRECAUTIONS

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

HMC467LP3 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] 467

XXXX

HMC467LP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] 467

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

v01.0705 2 dB LSB GaAs MMIC 2-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 6 GHz

HMC467LP3 / 467LP3E

ATTENUATORS - SMT

5 - 136

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

1, 2, 4, 9 - 12,

14, 15 N/C These pins should be connected to PCB

RF ground to maximize performance.

3 Vdd Supply Voltage

5, 8 V2, V1 See truth table and control voltage table.

6, 7 ACG1, ACG2

External capacitor to ground is required.

Select value for lowest frequency of operation.

Place capacitor as close to pins as possible.

13, 16 RF2, RF1 These pins are DC coupled and matched to 50 Ohm. Blocking

capacitors are required.

GND Package bottom has an exposed metal paddle

that must be connected to RF/DC ground.

Application Circuit

v01.0705 2 dB LSB GaAs MMIC 2-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 6 GHz

HMC467LP3 / 467LP3E

ATTENUATORS - SMT

5 - 137

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.

Item Description

J1 - J2 PCB Mount SMA Connector

J3 - J7 DC Pin

C1, C2 1000 pF Capacitor, 0402 Pkg.

C3 1000 pF Capacitor, 0603 Pkg.

C4 3300 pF Capacitor, 0603 Pkg.

U1 HMC467LP3 / HMC467LP3E Digital Attenuator

PCB [2] 106980 Evaluation PCB

[1] Reference this number when ordering complete evaluation PCB

[2] Circuit Board Material: Rogers 4350

List of Materials for Evaluation PCB 107008 [1]

v01.0705 2 dB LSB GaAs MMIC 2-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 6 GHz

HMC467LP3 / 467LP3E