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Fairview Microwave

Digitally Controlled Programmable Attenuators

Digitally Controlled Programmable Attenuators from Fairview Microwave
  • Broadband frequencies ranging from 30 MHz to 40 GHz
  • High attenuation levels up to 60 dB
  • PIN diode designs exhibit extremely fast attenuation step switching performance
  • Attenuation step size ranges from 0.03 dB to 1 dB
  • Programmable attenuator control bit sizes range from 5 to 10 bits
  • Models powered and command controlled via 15 pin female Micro-D socket or USB interface
  • Guaranteed operating performance over -50°C to +85°C
  • Models are available in environmentally sealed rugged metal packages with connectors

Click on a product below for more details

Model No.

Frequency
Band
(GHz)

Attenuation
Range
(dB)

Typical

Attenuation

Flatness

(dB)

Typical

Attenuation

Accuracy

(dB)

Minimum

Step

Size (dB)

Typical

Insertion

Loss (dB)

Typical

Input

P1dB

(dBm)

Power

Rating

(dBm)

Number

of Bits

Connectors

Large
View

Image

SDA-060-060-0025-SMA

0.03 - 6

0 to 60

± 3.0

± 1.3

0.25

4

- - -

20

8

SMA / 15 Pin
Micro-D Female

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0 to 60 dB 8 Bit Programmable TTL Controlled Step Attenuator With a 0.25 dB Step SMA Female To SMA Female From 30 MHz To 6 GHz

SDA-180-030-0100-SMA

0.1 - 18

0 to 30

± 2.0

± 2.5

1

5

20

24

5

2.92 mm / 15 Pin
Micro-D Female

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0 to 30 dB 5 Bit Programmable TTL Controlled Step Attenuator With a 1 dB Step 2.92mm Female To 2.92mm Female From 100 MHz To 18 GHz

SDA-180-060-0006-SMA

0.5 - 18

0 to 60

± 1.5

± 2.0

0.06

4.5

15

30

10

SMA / 15 Pin
Micro-D Female

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0 to 60 dB 10 Bit Programmable TTL Controlled Step Attenuator With a 0.06 dB Step SMA Female To SMA Female From 500 MHz To 18 GHz

SDA-400-030-0100-K

0.1 - 40

0 to 30

± 2.0

± 2.5

1

8

20

24

5

2.92 mm / 15 Pin
Micro-D Female

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0 to 30 dB 5 Bit Programmable TTL Controlled Step Attenuator With a 1 dB Step 2.92mm Female To 2.92mm Female From 100 MHz To 40 GHz

FMAT6001

18 - 40

0 to 30

± 1.5

± 2.0

0.03

6

10

24

10

2.92 mm / 15 Pin
Micro-D Female

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0 to 30 dB 10 Bit Programmable TTL Controlled Step Attenuator With a 0.03 dB Step 2.4mm Female To 2.4mm Female From 18 GHz To 40 GHz

FMAT3900

0.1 - 18

0 to 30

- - -

± 2.5

1

6.5

- - -

- - -

5

2.92 mm / USB
Controlled

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0 to 30 dB Programmable USB Controlled Step Attenuator With a 1 dB Step SMA Female To SMA Female From 100 MHz To 18 GHz

SDUA-400-030-0100-K

0.1 - 40

0 to 30

- - -

± 2.5

1

6.5

- - -

- - -

5

2.92 mm / USB
Controlled

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0 to 30 dB Programmable USB Controlled Step Attenuator With a 1 dB Step 2.92mm Female To 2.92mm Female From 100 MHz To 40 GHz

Digitally Controlled Programmable Attenuators from Fairview Microwave

Our line of digitally controlled programmable attenuators perform up to 40 GHz and up to 60 dB attenuation range with 0.03 dB minimum step size. These attenuators perform the important function of adjusting the amplitude of signal levels in RF, microwave, and millimeter-wave systems. The designs utilize PIN diode semiconductor technology that generates extremely fast switching performance between attenuation states over wide frequency bands. This performance is highly desirable and widely used in transceiver RF and IF sections and in equipment applications such as signal generators to adjust the output level of test signals.

Our programmable attenuators have integrated TTL driver logic control bit circuitry that ranges from 5 to 10 binary bits depending on the model. This number of bits benefits in very precise and linear digital control of attenuation step sizes that can be as low as 0.03 dB to 1 dB maximum over the entire attenuation range. The command control interface is via a 15 pin female Micro-D socket or USB connector. The circuits are enclosed in environmentally sealed metal packages with epoxy paint finish with either stainless steel SMA or 2.92mm connectors. Guaranteed operating performance covers a temperature range of -50°C to +85°C.

 

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Fairview Microwave, Inc.

301 Leora Ln., Suite 100

Lewisville, TX 75056

Office Hours: Monday – Friday, 7am - 6pm

Telephone: (800) 715-4396 / (972) 649-6678

Fax: (972) 649-6689

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