9 - 3

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9

-7

-6

-5

-4

-3

-2

-1

0

0.6

0.8

1

1.2

1.4

1.6

1.8

2

FREQUENCY (GHz)

-70

-60

-50

-40

-30

-20

-10

0

-60

-50

-40

-30

-20

-10

0

0

0.5

1

1.5

2

2.5

3

CONTROL VOLTAGE (V)

0.9 GHz

1.9 GHz

-10

-8

-6

-4

-2

0

2

4

6

8

10

0

0.5

1

1.5

2

2.5

3

CONTROL VOLTAGE (V)

-40C

+85C

HMC173MS8

v01.0801

Input P1dB

Compression@ .825 GHz

10

15

20

25

30

35

40

0

0.5

1

1.5

2

2.5

3

CONTROL VOLTAGE (V)

+85C

+25C

-40C

GaAs MMIC VOLTAGE-VARIABLE

ATTENUATOR, 0.8 - 2.0 GHz

-20

-15

-10

-5

0

0.6

0.8

1

1.2

1.4

1.6

1.8

2

FREQUENCY (GHz)

2V

0V

2.25V

3V

Attenuation vs. Control Voltage

@ 0.9 and 1.9 GHz

Input IP3 vs.

Control Voltage @ .825 GHz

Attenuation vs. Temperature

Normalized to +25˚C @ .825 GHz

Broadband Attenuation

and Insertion Loss

Broadband Return Loss

vs. Control Voltage

Input Power for 1 dB Compression Point

Test Condidition

(.825 GHz)

VCTL

(Vdc)

Vdd

(Vdc)

+25C

+85C

-40C

Units

Min. Attenuation

0.0

+4.0

26

24

25

dBm

Max. Attenuation

+3.0

+4.0

16.5

15

23

dBm

Worst Case

P1dB @

Typical VCTL

+1.8

+4.0

16.5

15.5

14

dBm