GaAs IC 5 Bit Digital Attenuator With Serial-to-Parallel Driver 0.5–2.5 GHz

AA109-310

2

Alpha Industries, Inc. [781] 935-5150

• Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com

Specifications subject to change without notice. 3/01A

Dimensions in inches (mm).

0.122

(3.10 mm)

SQ.

0.020 (0.50 mm)

0.020

(0.50 mm)

0.020 (0.50 mm)

0.020

(0.50 mm)

0.013 (0.33 mm)

Surface Mount Land Pattern

5 x 5 mm MLF 32 Lead

Truth Table

Reset

1 dB

2 dB

4 dB

8 dB

16 dB

Attenuation

1

1

1

1

1

1

Insertion Loss

1

0

1

1

1

1

1 dB

1

1

0

1

1

1

2 dB

1

1

1

0

1

1

4 dB

1

1

1

1

0

1

8 dB

1

1

1

1

1

0

16 dB

1

0

0

0

0

0

31 dB

0

X

X

X

X

X

31 dB

Characteristic

Value

-0.5 to +6 V

500 mW

-65°C to +125°C

-40°C to +85°C

Absolute Maximum Ratings

Insertion Loss vs. Frequency

Frequency (GHz)

-3.5

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0

0

0.5

1.0

1.5

2.0

2.5

Frequency (GHz)

Attenuation Accuracy vs. Frequency

0

0.5

1.0

1.5

2.0

2.5

-1.0

-0.8

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0.8

1.0

1 dB

2 dB

4 dB

8 dB

16 dB

31 dB

VSWR vs. Frequency

Frequency (GHz)

1.0

1.2

1.4

1.6

1.8

2.0

2.2

0

0.5

1.0

1.5

2.0

2.5

Ins. Loss

1 dB

2 dB

4 dB

8 dB

16 dB

31 dB

Serial Data Input

X = Don’t Care.