MAATCC0014TR - M/A-COM Technology Solutions, Inc.

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

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.

Digital Attenuator

15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz

Rev. V5

MAATCC0014

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: 0.5 dB Steps to 15.5 dB

• Single Positive Supply

• Contains Internal DC to DC Converter

• Low DC Power Consumption

• Small Footprint, JEDEC Package

• Integral TTL Driver

• 50 ohm Impedance

• Lead-Free CSP-1 Package

• 100% Matte Tin Plating over Copper

• Halogen-Free “Green” Mold Compound

• 260°C Reflow Compatible

• RoHS* Compliant Version of AT90-1283

Description

M/A-COM's MAATCC0014 is a GaAs FET 5-bit

digital attenuator with integral TTL driver. Step size

is 0.5 dB providing a 15.5 dB total attenuation range.

This device is in an PQFN plastic surface mount

package. The MAATCC0014 is ideally suited for use

where accuracy, fast speed, very low power

consumption and low costs are required. For dual

supply designs without switching noise, use MAAD-

007081-000100.

Ordering Information

Part Number Package

MAATCC0014 Bulk Packaging

MAATCC0014TR 1000 piece reel

MAATCC0014-TB Sample Test Board

Note: Reference Application Note M513 for reel size

information.

Schematic with Off-Chip Components

Pin Configuration3

Pin No. Function Pin No. Function

1 GND 17 NC

2 C8 18 NC

3 C4 19 Vcc

4 C2 20 NC

5 C1 21 Cp

6 C0.5 22 NC

7 GND 23 Cp

8 NC 24 NC

9 NC 25 VEE2

10 NC1 26 GND

11 GND 27 RF2

12 RF1 28 GND

13 GND 29 NC1

14 NC 30 VEE2

15 NC 31 NC

16 NC 32 Vcc

* Restrictions on Hazardous Substances, European Union

Directive 2002/95/EC.

1. Pins 10 and 29 must be isolated.

2. VEE is produced internally and requires a .1 µF cap to GND.

Generated noise is typical of switching DC-DC Converters.

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

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

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

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.

Digital Attenuator

15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz

Rev. V5

MAATCC0014

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

Parameter Frequency Units Min Typ Max

Insertion Loss DC - 3.5 GHz dB — 2.8 3.2

Attenuation Accuracy DC - 3.5 GHz

DC - 3.5 GHz

—

±(.3 +5% of atten setting)

±(.4 +10% of atten setting)

±(.5 +7% of atten setting)

VSWR DC - 3.5 GHz Ratio — 1.6:1 1.8:1

Switching Speed —

—

150

1 dB Compression 50 MHz

0.5 - 3.5 GHz

dBm

—

+21

+29

—

Input IP3 50 MHz

0.5-3.5 GHz

—

+35

+48

—

Vcc — V 4.75 5.0 5.25

VIL

VIH

—

0.0

2.0

—

0.8

5.0

lin (Input Leakage Current) — uA -1.0 — 1.0

Test Conditions

—

Individual Bits 0.5-1-4-8 dB

Individual Bit 2 dB

Any Combination of Bits

1 to 15.5 dB

Full Range

50% Cntl to 90%/10% RF

10% to 90% or 90% to 10%

—

Two-tone inputs up to +5 dBm

—

LOW-level input voltage

HIGH-level input voltage

Vin = VCC or GND

Icc4 Vcc min to max, Logic “0” or “1” — mA — 6 10

Turn-on Current5 For guaranteed start-up — mA — — 125

Switching Noise Generated from

DC-DC Converter with

recommended capacitors

3.5 MHz dBm — -93 —

Thermal Resistance θjc — — °C/W — 15 —

ΔIcc

(Additional Supply Current

Per TTL Input Pin)

VCC = Max, Vcntrl = VCC - 2.1 V — mA — — 1.0

4. During turn-on, the device requires an initial start up current (Icc) specified as “Turn-on Current”. Once operational, Icc will

drop to the specified levels.

5. The DC-DC converter is guaranteed to start in 100 µs as long as the power supplies have the maximum turn-on current

available for start-up.

Absolute Maximum Ratings 6,7

Parameter Absolute Maximum

Max. Input Power

0.05 GHz

0.5 - 3.5 GHz

+27 dBm

+34 dBm

VCC -0.5V ≤ VCC ≤ +6.0V

Vin8 -0.5V ≤ Vin ≤ VCC + 0.5V

Operating Temperature -40ºC to +85ºC

Storage Temperature -65ºC to +125ºC

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

permanent damage to this device.

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

these survivability limits.

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

signal is applied prior to power supply.

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.

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

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.

Digital Attenuator

15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz

Rev. V5

MAATCC0014

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 @ Insertion Loss

Typical Performance Curves

Insertion Loss

Recommended PCB Configuration9

9. Application Note C2083 is available on line at

www.macom.com

Truth Table (Digital Attenuator)

C8 C4 C2 C1 C0.5 Attenuation

0 0 0 0 0 Loss, Reference

0 0 0 0 1 0.5 dB

0 0 0 1 0 1.0 dB

0 0 1 0 0 2.0 dB

0 1 0 0 0 4.0 dB

1 0 0 0 0 8.0 dB

1 1 1 1 1 15.5 dB

0 = TTL Low; 1 = TTL High

1. 0

1. 5

2.0

2.5

3.0

0 500 1000 1500 2000 2500 3000 3500

Frequency (MHz)

Loss ( d B)

1. 0 0

1. 2 5

1. 5 0

1. 7 5

0 500 1000 1500 2000 2500 3000 3500

Fre quency (MHz)

VSWR Ra t io

Input Output

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

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.

Digital Attenuator

15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz

Rev. V5

MAATCC0014

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 Error, 1 dB Bit

Attenuation Error, 2 dB Bit Attenuation Error, 4 dB Bit

Typical Performance Curves

Attenuation Error, 8 dB Bit Attenuation Error, Max. Attenuation

Attenuation Error, 0.5 dB Bit

-1.0

-0.5

0.0

0.5

1. 0

0 500 1000 1500 2000 2500 3000 3500

Freq uency (M Hz)

Er ror (d B)

-1.0

-0.5

0.0

0.5

1. 0

0 500 1000 1500 2000 2500 3000 3500

Frequency (M Hz)

Er ror (d B)

-1.0

-0.5

0.0

0.5

1. 0

0 500 1000 1500 2000 2500 3000 3500

Frequency (MHz)

Er r or (d B)

-0.5

0.0

0.5

1. 0

0 500 1000 1500 2000 2500 3000 3500

Frequency (M Hz)

Er ror (d B)

-0.5

0.0

0.5

1. 0

0 500 1000 1500 2000 2500 3000 3500

Frequency (MHz)

Erro r ( dB)

-1.0

0.0

1. 0

2.0

3.0

0 500 1000 1500 2000 2500 3000 3500

Frequency (MHz)

Error (dB)

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

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.

Digital Attenuator

15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz

Rev. V5

MAATCC0014

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, 1 dB Bit

VSWR, 2 dB Bit VSWR, 4 dB Bit

Typical Performance Curves

VSWR, 8 dB Bit VSWR, Maximum Attenuation

VSWR, 0.5 dB Bit

1. 0

1. 2

1. 4

1. 6

0 500 1000 1500 2000 2500 3000 3500

Frequency (MHz)

VSW R Ratio

Input Output

1. 0

1. 2

1. 4

1. 6

0 500 1000 1500 2000 2500 3000 3500

Fre que ncy (MHz)

VSWR Rat io

Input Output

1. 0

1. 2

1. 4

1. 6

1. 8

0 500 1000 1500 2000 2500 3000 3500

Freq uency (M Hz)

VSWR Rat io

Input Output

1. 0

1. 2

1. 4

1. 6

0 500 1000 1500 2000 2500 3000 3500

Frequency (M Hz)

VSWR Ratio

Input Output

1. 0

1. 2

1. 4

1. 6

0 500 1000 1500 2000 2500 3000 3500

Fre que ncy (MHz)

VSWR Ratio

Input Output

1. 0

1. 2

1. 4

1. 6

1. 8

0 500 1000 1500 2000 2500 3000 3500

Frequency (MHz)

VSWR Rat io

Input Output

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

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.

Digital Attenuator

15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz

Rev. V5

MAATCC0014

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, Lead-Free 4 x 6 mm, 32-lead

PQFN†

† Reference Application Note M538 for lead-free solder reflow

recommendations.