GaAs IC 5 Bit Digital Attenuator 0.5 dB LSB DC–2 GHz

AA280-25

2

Alpha Industries, Inc. [781] 935-5150

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

Specifications subject to change without notice. 11/00A

Frequency (GHz)

Insertion Loss vs. Frequency

0

0.5

1.0

1.5

2.0

-2.00

-1.75

-1.50

-1.25

-1.00

-0.75

-0.50

+25˚C

+85˚C

-40˚C

Attenuation (dB)

IP3 vs. Attenuation and Temperature

46

48

50

52

54

56

58

012 3 456 789 10 11 12 13 14 15

+25˚C

+85˚C

-40˚C

Frequency (GHz)

VSWR vs. Frequency (25˚C)

0

0.5

1.0

1.5

2.0

1.0

1.1

1.2

1.3

1.4

1.5

Ins. Loss

0.5 dB

1 dB

2 dB

4 dB

8 dB

15.5 dB

Frequency (GHz)

VSWR vs. Frequency (85˚C)

0

0.5

1.0

1.5

2.0

1.0

1.1

1.2

1.3

1.4

1.5

Ins. Loss

0.5 dB

1 dB

2 dB

4 dB

8 dB

15.5 dB

Frequency (GHz)

VSWR vs. Frequency (-40˚C)

0

0.5

1.0

1.5

2.0

1.0

1.1

1.2

1.3

1.4

1.5

Ins. Loss

0.5 dB

1 dB

2 dB

4 dB

8 dB

15.5 dB

Typical Performance Data (0, -5 V)

Compression Point vs. Attenuation,

Voltage, and Temperature

Attenuation

Control

Input Power @ 1 dB Compression

State

Voltage (V) +25°C (dBm) +85°C (dBm) -40°C (dBm)

Ins. Loss

-5

28.30

28.10

29.10

0.5 dB

-5

28.50

28.30

29.40

1.0 dB

-5

28.70

28.70

29.60

2.0 dB

-5

28.40

28.30

29.10

4.0 dB

-5

32.90

32.90

33.90

8.0 dB

-5

36.80

36.80

36.80

15.5 dB

-5

32.70

32.10

32.80