MAAD-008790-000100 - M/A-COM Technology Solutions, Inc.

Constant Phase Digital Attenuator

31.0 dB, 5-Bit, TTL Driver, DC-4.0 GHz

Rev. V1

MAAD-008790-000100

• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400

• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588

Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

1

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

Features

• Attenuation: 1.0 dB Steps to 31.0 dB

• Phase error: ± 3º Typical at 2 GHz

• Low DC Power Consumption

• Small Footprint, PQFN Package

• Integral TTL Driver

• 50 ohm Impedance

• Test Boards are Available

• RoHS* Compliant

Description

M/A-COM's MAAD-008790-000100 is a GaAs

pHEMT 5-bit digital attenuator with integral TTL

driver. This attenuator was designed to minimize

phase variation over attenuation. Step size is 1.0 dB

providing a 31.0 dB total attenuation range. This

device is in an PQFN plastic surface mount

package. MAAD-008790-000100 is ideally suited for

use where accuracy, constant phase over attenua-

tion, very low power consumption and low costs are

required.

Ordering Information

Part Number Package

MAAD-008790-000100 Bulk Packaging

MAAD-008790-0001TR 1000 piece reel

MAAD-008790-0001TB Sample Test Board

Note: Reference Application Note M513 for reel size

information.

Functional Schematic

Pin Configuration1

Pin No. Function Pin No. Function

1 GND 17 NC

2 C4 18 NC

3 C3 19 NC

4 C2 20 NC

5 C1 21 NC

6 C5 22 NC

7 GND 23 NC

8 NC 24 NC

9 NC 25 NC

10 NC2 26 GND

11 GND 27 RF2

12 RF1 28 GND

13 GND 29 NC2

14 NC 30 Vee

15 NC 31 NC

16 NC 32 +Vcc

1. The exposed pad centered on the package bottom must be

connected to RF and DC ground. (For PQFN Packages)

2. Pins 10 & 29 must be isolated

* Restrictions on Hazardous Substances, European Union

Directive 2002/95/EC.

Constant Phase Digital Attenuator

31.0 dB, 5-Bit, TTL Driver, DC-4.0 GHz

Rev. V1

MAAD-008790-000100

• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400

• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588

Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

2

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

Electrical Specifications: TA = 25°C, Z0 = 50 Ω, VCC = +5.0V, VEE = -5.0V

Parameter Test Conditions Frequency Units Min Typ Max

Operating Power — — dBm — — +20

Reference Insertion Loss — DC - 2.0 GHz

2.0 - 4.0 GHz

dB

—

5.0

5.5

Attenuation Accuracy3

Relative to Reference Loss State

Any Single Bit

Any Combination of Bits

DC - 4.0 GHz

Phase Accuracy

Relative to Reference Loss State

Any Single Bit

Any Combination of Bits

DC - 2.0 GHz

2.0 - 4.0 GHz

DC - 2.0 GHz

2.0 - 4.0 GHz

deg

—

±3º

±5º

±9º

VSWR Full Range DC - 4.0 GHz Ratio — — 1.8:1

Switching Speed

Ton

Toff

Trise

Tfall

1.3 V Cntl to 90% RF

1.3 V Cntl to 10% RF

10% RF to 90% RF

90% RF to 10% RF

—

__

ns

—

See Table

13

See Table

3

—

1 dB Compression4 Reference State

Reference State

0.05 GHz

0.5 - 4.0 GHz

dBm

—

>+27

—

Input IP3

Two-tone inputs

up to +5 dBm 0.05-4.0 GHz dBm — See Table —

Vcc

Vee

—

V

4.5

-8.0

5.0

-5.0

5.5

-4.5

VIL

VIH

LOW-level input voltage

HIGH-level input voltage

—

V

0.0

2.0

0.0

5.0

0.8

5.0

lin (Input Leakage Current) Vin = VCC or GND — uA -1 — 1

Icc

(Quiescent Supply Current) Vcntrl = VCC or GND — uA — 250 400

ΔIcc

(Additional Supply Current Per

TTL Input Pin)

VCC = Max

Vcntrl = VCC - 2.1 V — mA — — 1.5

IEE VEE min to max

Vin = VIL or VIH — mA -1.0 -0.2 —

Thermal Resistance θjc — — °C/W — 35 —

±(0.3 +3% of atten setting in dB)

Input IP2

Two-tone inputs

up to +5 dBm 0.05-4.0 GHz dBm — See Table —

3. This attenuator is guaranteed monotonic.

4. 1 dB Compression was measured up to +27 dBm, which is the absolute maximum rating for this device.

Constant Phase Digital Attenuator

31.0 dB, 5-Bit, TTL Driver, DC-4.0 GHz

Rev. V1

MAAD-008790-000100

• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400

• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588

Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

3

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

Absolute Maximum Ratings 5,6

Parameter Absolute Maximum

Max. Input Power +27 dBm

VCC -0.5V ≤ VCC ≤ +7.0V

VEE -8.5V ≤ VEE ≤ +0.5V

VCC - VEE -0.5V ≤ VCC - VEE ≤ 14.5V

Vin7 -0.5V ≤ Vin ≤ VCC + 0.5V

Operating Temperature -40ºC to +85ºC

Storage Temperature -65ºC to +125ºC

5. Exceeding any one or combination of these limits may cause

permanent damage to this device.

6. M/A-COM does not recommend sustained operation near

these survivability limits.

7. Standard CMOS TTL interface, latch-up will occur if logic

signal is applied prior to power supply.

Recommended PCB Configuration 8

8. Application Note S2083 is available on line at

www.macom.com

Handling Procedures

Please observe the following precautions to avoid

damage:

Static Sensitivity

Gallium Arsenide Integrated Circuits are sensitive

to electrostatic discharge (ESD) and can be

damaged by static electricity. Proper ESD control

techniques should be used when handling these

devices.

Moisture Sensitivity

The MSL rating for this part is defined as Level 2

per IPC/JEDEC J-STD-020. Parts shall be stored

and/or baked as required for MSL Level 2 parts.

Truth Table (Digital Attenuator)

0 = TTL Low; 1 = TTL High

C5 C4 C3 C2 C1 Attenuation

0 0 0 0 0 Loss, Reference

0 0 0 0 1 1.0 dB

0 0 0 1 0 2.0 dB

0 0 1 0 0 4.0 dB

0 1 0 0 0 8.0 dB

1 0 0 0 0 16.0 dB

1 1 1 1 1 31.0 dB

Constant Phase Digital Attenuator

31.0 dB, 5-Bit, TTL Driver, DC-4.0 GHz

Rev. V1

MAAD-008790-000100

• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400

• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588

Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

4

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

Attenuation - 1 dB Bit vs. Frequency

Attenuation - 2 dB Bit vs. Frequency

Typical Performance Curves

Reference Loss vs. Frequency

Attenuation - 4 dB Bit vs. Frequency

Attenuation - 16 dB Bit vs. Frequency Attenuation - 8 dB Bit vs. Frequency

3.00

4.00

5.00

6.00

7.00

0123456

Frequenc y (GHz)

Reference Loss (dB)

0.80

0.90

1.00

1.10

1.20

0123456

Frequenc y (GHz)

Attenuation (dB)

1.75

2.00

2.25

2.50

2.75

0123456

Frequency (GHz)

A ttenuati o n (d B)

3.75

4.00

4.25

4.50

4.75

0123456

Frequency (GHz)

A ttenuatio n (d B)

7.75

8.00

8.25

8.50

8.75

0123456

Frequency (GHz)

A ttenuatio n (d B)

15.50

16.00

16.50

17.00

17.50

0123456

Frequenc y (GHz)

Loss (dB)

-40ºC

25ºC

85ºC

-40ºC

85ºC 25ºC

-40ºC

85ºC

25ºC

-40ºC

85ºC

25ºC

-40ºC

85ºC

25ºC

-40ºC

85ºC

25ºC

Constant Phase Digital Attenuator

31.0 dB, 5-Bit, TTL Driver, DC-4.0 GHz

Rev. V1

MAAD-008790-000100

• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400

• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588

Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

5

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

-6.00

-3.00

0.00

3.00

6.00

0123456

Frequency (GHz)

Phase (Degrees)

Phase - 1 dB Bit vs. Frequency

Relative to Reference Loss State

Phase - 2 dB Bit vs. Frequency

Relative to Reference Loss State

Typical Performance Curves

Attenuation - 31 dB Attenuation vs. Frequency

Phase - 4 dB Bit vs. Frequency

Relative to Reference Loss State

Phase - 8 dB Bit vs. Frequency

Relative to Reference Loss State Phase - 16 dB Bit vs. Frequency

Relative to Reference Loss State

30.50

31.00

31.50

32.00

32.50

0123456

Frequency (GHz)

Loss (dB)

-40ºC

85ºC

25ºC

-2.00

0.00

2.00

4.00

6.00

0123456

Frequency (GHz)

Phase (Degrees)

-4.00

-2.00

0.00

2.00

4.00

0123456

Frequency (GHz)

Phase (Degrees)

-4.00

-2.00

0.00

2.00

4.00

6.00

0123456

Frequency (GHz)

Phase (Degrees)

-8.00

-4.00

0.00

4.00

8.00

0123456

Frequency (GHz)

Phase (Degrees)

-40ºC

85ºC

25ºC

-40ºC

85ºC

25ºC

-40ºC

85ºC

25ºC

-40ºC

85ºC

25ºC

-40ºC

85ºC

25ºC

Constant Phase Digital Attenuator

31.0 dB, 5-Bit, TTL Driver, DC-4.0 GHz

Rev. V1

MAAD-008790-000100

• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400

• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588

Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

6

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

VSWR - Reference State vs. Frequency

VSWR - 1 dB Bit vs. Frequency

Typical Performance Curves

Phase - 31 dB Attenuation vs. Frequency

Relative to Reference Loss State

VSWR - 2 dB Bit vs. Frequency

VSWR - 4 dB Bit vs. Frequency VSWR - 8 dB Bit vs. Frequency

-4.00

0.00

4.00

8.00

12.00

0123456

Frequency (GHz)

Phase (Degrees)

-40ºC

85ºC

25ºC

1.00

1.20

1.40

1.60

1.80

2.00

0123456

Frequency (GHz)

VSWR

1.00

1.20

1.40

1.60

1.80

2.00

0123456

Frequency (GHz)

VSWR

1.00

1.20

1.40

1.60

1.80

2.00

0123456

Frequency (GHz)

VSWR

1.00

1.20

1.40

1.60

1.80

2.00

0123456

Frequency (GHz)

VSWR

1.00

1.20

1.40

1.60

1.80

2.00

0123456

Frequency (GHz)

VSWR

RF2

RF1

RF2

RF1

RF2

RF1

RF2

RF1 RF2 RF1

Constant Phase Digital Attenuator

31.0 dB, 5-Bit, TTL Driver, DC-4.0 GHz

Rev. V1

MAAD-008790-000100

• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400

• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588

Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

7

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

VSWR - 31 dB Attenuation vs. Frequency

Typical Input IP2 and IP3 at Room Temperature9

Typical Performance Curves

VSWR - 16 dB Bit vs. Frequency

Attenuation

IP2 IP3

50 MHz 500 MHz 2 GHz 50 MHz 500 MHz 2 GHz

Reference State 50 68 70 39 43 42 dBm

1 dB 50 68 70 39 43 37 dBm

2 dB 50 68 70 39 43 37 dBm

4 dB 50 68 70 37 37 37 dBm

8 dB 50 68 70 37 37 37 dBm

16 dB 50 68 65 31 32 32 dBm

31 dB 50 50 50 31 30 29 dBm

Units

Typical Switching Speed at Room Temperature

Testing Conditio n Ton Trise

Ref. State ↔ 1 dB 3.6 3.6

Ref. State ↔ 2 dB 3.6 3.6

Ref. State ↔ 4 dB 3.7 3.7

Ref. State ↔ 8 dB 3.3 3.3

Ref. State ↔ 16 dB 4.5 4.5

Ref. State ↔ 31 dB 30.5 30.5

Units

μs

1.00

1.20

1.40

1.60

1.80

2.00

0123456

Frequency (GHz)

VSWR

1.00

1.20

1.40

1.60

1.80

2.00

0123456

Frequency (GHz)

VSWR

RF2

RF1 RF2

RF1

9. IP2 and IP3 are measured with two-tone inputs F1 and F2 up to +5 dBm with 1 MHz spacing.

Constant Phase Digital Attenuator

31.0 dB, 5-Bit, TTL Driver, DC-4.0 GHz

Rev. V1

MAAD-008790-000100

• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400

• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588

Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

8

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

CSP-1, 4 x 6 mm, 32-lead PQFN†

† Reference Application Note M538 for lead-free solder reflow

recommendations.