HMC306MS10TR - Hittite Microwave Corporation

ATTENUATORS - SMT

5 - 60

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

0.5 dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, 0.7 - 3.8 GHz

General Description

Features

Functional Diagram

The HMC306MS10 & HMC306MS10E are general

purpose broadband 5-bit positive control GaAs IC

digital attenuators in 10 lead MSOP surface mount

plastic packages. Covering 0.7 to 3.8 GHz, the

insertion loss is typically less than 1.5 to 2.3 dB.

These attenuators’ bit values are 0.5 (LSB), 1, 2, 4 and

8 dB for a total attenuation of 15.5 dB. Attenuation

accuracy is excellent at ± 0.2 dB typical with an IIP3

of up to +52 dBm. Five bit control voltage inputs, toggled

between 0 and +3 to +5V, are used to select each

attenuation state. A single Vdd bias of +3 to +5V ap-

plied through an external 5K Ohm resistor is required.

RoHS-Compliant Product

0.5 dB LSB Steps to 15.5 dB

Single Positive Control Per Bit

± 0.2 dB Typical Bit Error

Miniature 15 mm2 Package: MSOP10

Included in the HMC-DK004 Designer’s Kit

Electrical Speci cations,

TA = +25° C, Vdd= +3V to +5V & VCTL= 0/Vdd (Unless Otherwise Stated)

Typical Applications

The HMC306MS10 / HMC306MS10E is ideal for:

• Cellular; UMTS/3G Infrastructure

• ISM, MMDS, WLAN, WiMAX

• Microwave Radio & VSAT

• Test Equipment and Sensors

Parameter Frequency (GHz) Min. Typical Max. Units

Insertion Loss

0.7 - 1.4

1.4 - 2.3

2.3 - 2.7

2.7 - 3.8

1. 3

1. 5

1. 8

2.3

1. 6

2.0

2.5

2.7

Attenuation Range 15.5 dB

Return Loss (RF1 & RF2, All Atten. States)

0.7 - 1.4

1.4 - 2.3

2.3 - 2.7

2.7 - 3.8

Attenuation Accuracy: (Referenced to Insertion Loss)

All Attenuation States

0.5 - 7.5 dB States

8.0 - 15.5 dB States

All Attenuation States

0.7 - 1.4

1.4 - 2.3

2.3 - 3.8

± (0.30 + 5% of Atten. Setting) Max.

± (0.25 + 3% of Atten. Setting) Max.

± (0.15 + 3% of Atten. Setting) Max.

± (0.30 + 3% of Atten. Setting) Max.

Input Power for 0.1 dB Compression Vdd = 5V

Vdd = 3V 0.7 - 3.8 25

dBm

Input Third Order Intercept Point

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

Vdd = 5V

Vdd = 3V 0.7 - 3.8 52

dBm

Switching Characteristics

tRISE, tFALL (10/90% RF)

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

0.7 - 3.8 560

600

HMC306MS10 / 306MS10E

v06.0206

ATTENUATORS - SMT

5 - 61

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

0.5 dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, 0.7 - 3.8 GHz

Return Loss RF1, RF2

(Only Major States are Shown)

Absolute Bit Error vs. Attenuation State

Insertion Loss

Normalized Attenuation

(Only Major States are Shown)

Absolute Bit Error vs. Frequency

(Only Major States are Shown)

Relative Phase vs. Frequency

(Only Major States are Shown)

HMC306MS10 / 306MS10E

v06.0206

-4

-3.5

-3

-2.5

-2

-1.5

-1

-0.5

0.5 1 1.5 2 2.5 3 3.5 4

+25 C

-40 C

+85 C

INSERTION LOSS (dB)

FREQUENCY (GHz)

0.3

0.6

0.9

1.2

1.5

0.5 2 3.5 5 6.5 8 9.5 11 12.5 14 15.5

0.9 GHz

1.9 GHz

2.4 GHz

3.5 GHz

BIT ERROR (dB)

ATTENUATION STATE (dB)

-40

-20

0.5 1 1.5 2 2.5 3 3.5 4

2 dB

4 dB

8 dB

15.5 dB

RELATIVE PHASE (deg.)

FREQUENCY (GHz)

0.5, 1 dB

0.3

0.6

0.9

1.2

1.5

0.5 1 1.5 2 2.5 3 3.5 4

4 dB

8 dB

15.5 dB

BIT ERROR (dB)

FREQUENCY (GHz)

0.5, 1, 2 dB

-18

-15

-12

-9

-6

-3

0.5 1 1.5 2 2.5 3 3.5 4

0.5 dB

1 dB

2 dB

4 dB

8 dB

15.5 dB

NORMALIZED ATTENUATION (dB)

FREQUENCY (GHz)

-30

-25

-20

-15

-10

-5

0.5 1 1.5 2 2.5 3 3.5 4

0.5 dB

1 dB

2 dB

4 dB

8 dB

14 dB

RETURN LOSS (dB)

FREQUENCY (GHz)

ATTENUATORS - SMT

5 - 62

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

Application Circuit

Truth Table Control & Bias Voltages

Note:

DC Blocking Capacitors C1 & C2 are required on RF1 & RF2. Choose C1 = C2 = 100 ~ 300 pF to allow lowest customer

speci c frequency to pass with minimal loss. R1= 5K Ohm is required to supply voltage to the circuit through either Pin 6

or Pin 10.

Control Voltage Input Attenuation

State

RF1 - RF2

8 dB

4 dB

2 dB

1 dB

0.5 dB

High High High High High Reference I.L.

High High High High Low 0.5 dB

High High High Low High 1 dB

High High Low High High 2 dB

High Low High High High 4 dB

Low High High High High 8 dB

Low Low Low Low Low 15.5 dB

Max. Atten.

Any combination of the above states will provide an attenuation

approximately equal to the sum of the bits selected.

State Bias Condition

Low 0 to +0.2V @ 20 μA Max.

High Vdd ± 0.2V @ 20 μA Max.

Note: Vdd = +3V to 5V ± 0.00.20.20.2V

0.5 dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, 0.7 - 3.8 GHz

HMC306MS10 / 306MS10E

v06.0206

ATTENUATORS - SMT

5 - 63

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

Outline Drawing

Absolute Maximum Ratings

Control Voltage (V1 - V5) Vdd + 0.5 Vdc

Bias Voltage (Vdd) +8.0 Vdc

Storage Temperature -65 to +150 °C

Operating Temperature -40 to +85 °C

RF Input Power (0.7 - 3.8 GHz) +28 dBm

ESD Sensitivity (HBM) Class 1A

ELECTROSTATIC SENSITIVE DEVICE

OBSERVE HANDLING PRECAUTIONS

NOTES:

1. LEADFRAME MATERIAL: COPPER ALLOY

2. DIMENSIONS ARE IN INCHES [MILLIMETERS].

3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.

4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.

5. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.

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

HMC306MS10 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H306

XXXX

HMC306MS10E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H306

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

0.5 dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, 0.7 - 3.8 GHz

HMC306MS10 / 306MS10E

v06.0206

ATTENUATORS - SMT

5 - 64

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 Circuit Board

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 should be connected 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 103393 [1]

* R2 - R6= 100 Ohm.

These resistors are optional

and may be used to enhance

decoupling of the RF path

from the control inputs.

Item Description

J1 - J2 PCB Mount SMA Connector

J3 - J8 DC Pin

R1 5k Ohm Resistor, 0402 Pkg.

R2 - R6 100 Ohm Resistor, 0402 Pkg.

C1 - C2 0402 Chip Capacitor, Select Value for Lowerst

Frequency

U1 HMC306MS10 / HMC306MS10E

Digital Attenuators

PCB [2] 103391 Evaluation PCB 1.5” x 1.5”

[1] Reference this number when ordering complete evaluation PCB

[2] Circuit Board Material: Rogers 4350

0.5 dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, 0.7 - 3.8 GHz

HMC306MS10 / 306MS10E

v06.0206

ATTENUATORS - SMT

5 - 65

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

Notes:

0.5 dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, 0.7 - 3.8 GHz

HMC306MS10 / 306MS10E

v06.0206