3 Volt Voltage Variable Attenuator

25 dB, DC-2.5 GHz

AT-255

M/A-COM Inc. and its affiliates reserve the right to make changes to the

product(s) or information contained herein without notice. M/A-COM makes

no warranty, representation or guarantee regarding the suitability of its

products for any particular purpose, nor does M/A-COM assume any liability

whatsoever arising out of the use or application of any product(s) or

information.

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

Visit www.macom.com for additional data sheets and product information.

V7

3

Typical Performance Curves

Insertion Loss vs. Frequency

Relative Attenuation vs. Control

Voltage

Maximum Relative Attenuation vs. Frequency

Return Loss vs. Control Voltage

@ 900 MHz

Input IP3 vs. Control Voltage

Input P1dB vs. Control Voltage

-25

-20

-15

-10

-5

0

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0.0

Control Voltage (V)

S11

S22

0

5

10

15

20

25

30

35

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0.0

Control Voltage (V)

50MHz

1.0GHz

2.5GHz

0

1

2

3

4

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Frequency (GHz)

+25C

+85C

-40C

0

5

10

15

20

25

30

35

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Frequency (GHz)

+25C

+85C

-40C

0

5

10

15

20

25

30

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0.0

Control Voltage (V)

50MHz

500MHz

0

5

10

15

20

25

30

35

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0.0

Control Voltage (V)

50MHz

500MHz