2

Alpha Industries, Inc. [781] 935-5150

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

Specifications subject to change without notice. 3/99A

GaAs IC 4 Bit Digital Attenuator 3 dB LSB DC–1 GHz

AT001D6-25

Attenuation

12 dB

3 dB

6 dB

24 dB

-5

0

-5

0

0

-5

0

-5

Reference I.L.

-5

0

0

-5

0

-5

0

-5

3 dB

-5

0

-5

0

-5

0

0

-5

6 dB

0

-5

-5

0

0

-5

0

-5

12 dB

-5

0

-5

0

0

-5

-5

0

24 dB

0

-5

0

-5

-5

0

-5

0

45 dB

5

4

3

2

1

DC

0.5

1.0

Frequency (GHz)

Insertion Loss vs. Frequency

0

+85˚C

-40˚C

Frequency (GHz)

45

40

35

30

25

20

DC

0.5

1.0

24, 36, 45 dB States

Frequency (GHz)

15

DC

0.5

1.0

12

9

6

3

0

3, 6, 12 dB States

Typical Performance Data (0, -5 V)

GND GND

GND GND

GND GND

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

24 dB

6 dB

3 dB

12 dB

Characteristic

Value

RF Input Power

2 W > 500 MHz 0/-8 V

0.5 W @ 50 MHz 0/-8 V

Control Voltage

+0.2 V, -8 V

Operating Temperature

-40°C to +85°C

Storage Temperature

-65°C to +150°C

25°C/W

Absolute Maximum Ratings

Pin Out

Frequency (GHz)

VSWR vs. Frequency (All States)

2.5

2.2

1.9

1.6

1.3

1.0

1.0

0.5

DC

Truth Table

Note: Exceeding these parameters may cause irreversible damage.