MAADSS0008TR-3000 - 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 prod uct 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, 1-Bit, 15 dB

DC - 2.0 GHz

Rev. V1

MAADSS0008

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

• Single 15-dB Step

• Low Loss, 0.3 dB Typical @ 900 MHz

• 2.5 to 5.0 Volt Operation

• Tape and Reel Packaging Available

• Lead-Free SOT-25 Package

• 100% Matte Tin Plating over Copper

• Halogen-Free “Green” Mold Compound

• 260°C Reflow Compatible

• RoHS* Compliant Versi on of AT-267

Description

M/A-COM’s MAADSS0008 is a 1-bit, 15-dB step

GaAs MMIC digital attenuator in a lead-free SOT-25,

5 lead surface mount plastic package. The

MAADSS0008 is ideally suited for use where high

accuracy, very low power consumption and low

intermodulation products a re re quired.

Typical applications include wireless handsets, base

stations, wireless LAN equipment, GPS receivers

and any RF applications with automatic gain/level

control circuits.

The MAADSS0008 is fabricated as a monolithic

GaAs integrated circuit using a mature PHEMT

process. The process features full chip passivation

for performance and reliability.

Functional Schematic

Pin Configuration

Pin No. Function Pin No. Function

1 RF Input Port 4 V1

2 Ground 5 V2

3 RF Output Port

Ordering Information 1

Part Number Package

MAADSS0008TR 1000 piece reel

MAADSS0008TR-3000 3000 piece reel

MAADSS0008SMB Sample Board

1. Reference Application Note M513 for reel size information.

Absolute Maximum Ratings 2,3

Parameter Absolute Maximum

Input Power +21 dBm

Control Voltage ⏐VC⏐ ≤ 8V

Operating Temperature -40°C to +85°C

Storage Temperature -65°C to +150°C

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

permanent damage to this device.

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

these survivability limits.

5 4

1 32

* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.

• 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 prod uct 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, 1-Bit, 15 dB

DC - 2.0 GHz

Rev. V1

MAADSS0008

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.

Truth Table 5,6

Mode

(Control) V1 V2 Attenuation

Positive 5 0 ± 0.2V

+2.5V to +5V +2.5V to +5V

0 ± 0.2V 15 dB

Reference State

Negative 6 0 ± 0.2V

-2.5V to -5V -2.5V to -5V

0 ± 0.2V Reference State

15 dB

5. External DC blocking capacitors are required as noted.

6. If negative control is used, DC blocking capacitors are not

required on RF ports and ground.

Electrical Specifications4: TA = 25°C, VC = +2.5 Volts, Z0 = 50 Ω

Positive Control Voltage Schematic

5 4

1 32

39 pF 39 pF 39 pF

Parameter Test Conditions Units Min Typ Max

Insertion Loss

(Reference State) 1.0 GHz

2.0 GHz dB

dB —

— 0.3

0.4 0.4

0.5

Attenuation 1.0 GHz

2.0 GHz dB

dB 14.6

14.4 15.1

14.9 15.6

15.4

VSWR 1.0 GHz

2.0 GHz Ratio

Ratio —

— 1.2:1

1.3:1 —

—

Input IP3 1.0 GHz

Insertion Loss State

Attenuation State

dBm

dBm 40

40 50

50 —

—

P1dB 1.0 GHz

Insertion Loss State

Attenuation State

dBm

dBm 24

20 26

23 —

—

Control Current — µA — — 10

Trise, Tfall 10% to 90% RF, 90% to 10% RF nS — 29 —

Ton, Toff 50% Control to 90% RF,

50% Control to 10% RF nS — 50 —

Transients In-band mV — 10 —

4. For positive voltage control, external DC blocking capacitors are required on all RF ports (pins 1, 2 and 3).

Lead-Free SOT-25†

† Reference Application Note M538 for lead-free solder reflow

recommendations.

• 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 prod uct 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, 1-Bit, 15 dB

DC - 2.0 GHz

Rev. V1

MAADSS0008

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.

Typical Performance Curves

Insertion Loss with Negative Control

0.0

0.2

0.4

0.6

0.8

1.0

0.0 1.0 2.0 3.0

Fre quenc y ( G Hz)

Insertion Loss (dB)

+25C +85C -40C

0.0

0.2

0.4

0.6

0.8

1.0

0.0 0.5 1.0 1.5 2.0 2.5 3.0

Fre que nc y ( G Hz)

Insertion Loss (dB)

+25C +85C -40C

0.0 0.5 1.0 1.5 2.0 2.5 3.0

Fre que nc y (GHz)

Attenuation (dB)

+25C +85C -40C

0.0 0.5 1.0 1.5 2.0 2.5 3.0

Fre que nc y (G Hz)

Attenua tion (dB)

+25C +85C -40C

1.0

1.2

1.4

1.6

1.8

2.0

0.0 0.5 1.0 1.5 2.0 2.5 3.0

Frequency (GHz)

VSWR

0dB 15d B

1.0

1.2

1.4

1.6

1.8

2.0

0.0 0.5 1.0 1.5 2.0 2.5 3.0

Fr equency (GHz)

VSWR

0dB 15d B

Insertion Loss with Positive Control

Attenuation with Negative Control Attenuation with Positive Control

VSWR, 0 and 15 dB States with Negative Control at

+25°C VSWR, 0 and 15 dB States with Positive Control at

+25°C