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Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298

Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020

Specifications subject to change without notice.

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

V 4.0

0

5

10

15

20

25

30

-3

-2

-1

0

CONTROL VOLTAGE (VOLTS)

50MHz

500MHz

INPUT IP3 vs CONTROL VOLTAGE

0

5

10

15

20

25

30

35

40

45

-3

-2

-1

0

CONTROL VOLTAGE (VOLTS)

500 MHz

50MHz

-35

-30

-25

-20

-15

-10

-5

0

00.5

11.5

22.5

3

FREQUENCY (GHz)

Q

-25

-20

-15

-10

-5

0

-3

-2

-1

0

CONTROL VOLTAGE (VOLTS)

-4

-3

-2

-1

0

01

234

FREQUENCY(GHz)

-35

-30

-25

-20

-15

-10

-5

0

-3

-2

-1

0

CONTROL VOLTAGE (VOLTS)

2.5GHz

1.0GHz

50MHz

Typical Performance Curves

Relative Attenuation vs. Control Voltage

Insertion Loss vs. Frequency

Maximum Relative Attenuation vs. Frequency

Return Loss vs. Control @ 900 MHz

Functional Schematic

1

Parameter

Absolute Maximum

Maximum Input Power

+21 dBm

-8V, +0.5V

Operating Temperature

-40°C to +85°C

Storage Temperature

-65°C to +150°C

Absolute Maximum Ratings

1

1.

Exceeding any one or a combination of these limits may cause

permanent damage.

1.

Input IP3 vs. Control Voltage

Input P1dB vs. Control Voltage

5

4

1

3

2

RF

GND

Vc

RF

GND

2

3 Volt Voltage Variable Attenuator, 25 dB, DC - 2.5 GHz

AT-255