Digital Attenuator

50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz

Rev. V10

AT20-0106

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M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.

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Recommended PCB Configuration

Parameter

Absolute Maximum

Max Input Power

0.05 GHz

0.5 - 2.0 GHz

+27 dBm

+34 dBm

Operating Temperature

-40°C to +125°C

Storage Temperature

-65°C to +150°C

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Exceeding any one or combination of these limits may cause

permanent damage to this device.

4.

M/A-COM does not recommend sustained operation near

these survivability limits.

5.

Standard CMOS TTL interface, latch-up will occur if logic

signal is applied prior to power supply.

Handling Procedures

Please observe the following precautions to avoid

damage:

Static Sensitivity

Gallium Arsenide Integrated Circuits are sensitive

to electrostatic discharge (ESD) and can be

damaged by static electricity. Proper ESD control

techniques should be used when handling these

devices.

Truth Table (Digital Attenuator)

Control Inputs

C6

C5

C4

C3

C2

C1

Attenuation

0

0

0

0

0

0

Reference

0

0

0

0

0

1

1 dB

0

0

0

0

1

0

2 dB

0

0

0

1

0

0

4 dB

0

0

1

0

0

0

8 dB

0

1

0

0

0

0

16 dB

1

0

0

0

0

0

32 dB

1

1

1

1

1

1

63 dB

Attenuation Accuracy vs. Frequency

Typical Performance Curves

Insertion Loss vs. Frequency

0

1

2

3

4

5

0.0

0.5

1.0

1.5

2.0

Frequency (GHz)

+85 °C

+25 °C - 55 °C

-0.60

-0.40

-0.20

0.00

0.20

0.40

0.60

0.0

0.5

1.0

1.5

2.0

F requency (GH z)

1 d B

2 d B

4 d B

8 d B

0 = TTL Low; 1 = TTL High