Digital Attenuator, 4-Bit, Single Control

30 dB, 0.5-2.0 GHz

AT-264

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V6

2

Parameter

Test Conditions

Units

Min

Typ

Max

Reference

Insertion Loss

0.5 - 1.0 GHz

0.5 - 2.0 GHz

dB

dB

—

—

2.0

2.2

2.4

2.6

Attenuation

Accuracy

0.5 - 1.0 GHz

0.5 - 2.0 GHz

± (0.15 dB + 5% of attenuation setting in dB) dB

± (0.3 dB + 5% of attenuation setting in dB) dB

VSWR

1.0 - 1.5 GHz

0.5 - 2.0 GHz

Ratio

Ratio

—

—

1.5:1

1.9:1

—

—

Trise, Tfall

10% to 90% RF, 90% to 10% RF

nS

—

500

—

Ton, Toff

50% Control to 90% RF,

50% Control to 10% RF

nS

—

500

—

Transients

In Band

mV

—

75

—

1 dB

Compression

Input Power

0.5 GHz

0.9 GHz

dBm

dBm

—

—

25

25

—

—

0.5 GHz

0.5 - 2.0 GHz

dBm

dBm

—

—

65

71

—

—

0.5 GHz

0.5 - 2.0 GHz

dBm

dBm

—

—

43

47

—

—

4. External DC blocking capacitors are required on all RF ports. Loss varies at 0.003 dB/°C.

Truth Table

VC1 VC2 VC3 VC4

Attenuation (dB)

1

1

1

1

Reference Insertion Loss

1

1

1

0

2

1

1

0

1

4

1

0

1

1

8

0

1

1

1

16

0

0

0

0

30

Logic 0 = 0 ± 0.2 V.

Logic 1 = +5 V @ 30 µA maximum current total.