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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

GaAs Digital Attenuator

31 dB, 5 - Bit, DC - 2 GHz

Rev. V4

AT-357

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.

Functional Schematic (Top View)

Absolute Maximum Ratings

4

4. Operation of this device above any one of these parameters

may cause permanent damage.

Parameter

Absolute Maximum

Max Input Power

0.05 GHz

0.5 - 2.0 GHz

+27 dBm

+32 dBm

Bias Votlage

+15V Supply (V+)

-12V Supply (V-)

-0.7V to +18V

-15V to +0.7V

Control Votlage

(V-) -2V to (V+) +2V

(or 30 mA, whichever comes first)

Operating Temperature

-55°C to +125°C

Storage Temperature

-65°C to +150°C

Parameter

Test Conditions

Frequency

Units

Min

Typ

Max

Bias Power

+15 VDC

-12 VDC

—

—

mA

mA

—

—

—

—

5

3

Vin Low (0)

Vin High (1)

0.0 to 0.8V

2.4 to 5.0V

—

—

µA

µA

—

—

—

—

1

1

Electrical Specifications

Truth Table

Control Input

Attenuation

Setting

C1

C2

C3

C4

C5

0

0

0

0

0

Reference

1

0

0

0

0

1 dB

0

1

0

0

0

2 dB

0

0

1

0

0

4 dB

0

0

0

1

0

8 dB

0

0

0

0

1

16 dB

Any Combination

Sum of Bits Selected

“1” = Logic High (TTL)

“0” = Logic Low (TTL)

RF1

RF2

16 dB

8 dB

4 dB

2 dB

1 dB

C1

C2

C3

C4

C5

+15V

-12V

GND

GND

GND

GND