F1977 datasheet(11/21 Pages) IDT

Part #	F1977

Description	Digital Step Attenuator

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Manufacturer	IDT [Integrated Device Technology]

Direct Link	http://www.idt.com

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11 / 21 page

F1977

Rev 1, 04/21/2016

11

7-Bit, 75 Ω

Ω

Ω, Digital Step Attenuator

TYPICAL OPERATING CONDITIONS (- 1 -)

Insertion Loss vs Frequency

RF1 Return Loss vs Frequency [All States]

RF2 Return Loss vs Frequency [All States]

Insertion Loss vs Attenuation State

RF1 Return Loss vs Attenuation State

RF2 Return Loss vs Attenuation State

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

Frequency (GHz)

-40 C

+25 C

+105 C

-40

-35

-30

-25

-20

-15

-10

-5

0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

Frequency (GHz)

-40

-35

-30

-25

-20

-15

-10

-5

0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

Frequency (GHz)

-35

-30

-25

-20

-15

-10

-5

0

2

4

6

8

10 12 14 16 18 20 22 24 26 28 30 32

Attenuation (dB)

1 GHz, -40 C

1 GHz, +25 C

1 GHz, +105 C

-40

-35

-30

-25

-20

-15

-10

-5

0

2

4

6

8

10 12 14 16 18 20 22 24 26 28 30 32

Attenuation (dB)

0.01 GHz

0.25 GHz

0.50 GHz

0.75 GHz

1.00 GHz

1.25 GHz

1.50 GHz

1.75 GHz

2.00 GHz

2.25 GHz

2.50 GHz

2.75 GHz

-40

-35

-30

-25

-20

-15

-10

-5

0

2

4

6

8

10 12 14 16 18 20 22 24 26 28 30 32

Attenuation (dB)

0.01 GHz

0.25 GHz

0.50 GHz

0.75 GHz

1.00 GHz

1.25 GHz

1.50 GHz

1.75 GHz

2.00 GHz

2.25 GHz

2.50 GHz

2.75 GHz

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