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Truth Table

Control Voltage

Bias Voltage & Current

Worst Case Step Error

Between Successive Attenuation States

Control Voltage Input

Attenuation

State

RF1 - RF2

V1

16 dB

V2

8 dB

V3

4 dB

V4

2 dB

V5

1 dB

V6

0.5 dB

Low

Low

Low

Low

Low

Low

Reference

I.L.

Low

Low

Low

Low

Low

High

0.5 dB

Low

Low

Low

Low

High

Low

1 dB

Low

Low

Low

High

Low

Low

2 dB

Low

Low

High

Low

Low

Low

4 dB

Low

High

Low

Low

Low

Low

8 dB

High

Low

Low

Low

Low

Low

16 dB

High

High

High

High

High

High

31.5 dB

Any Combination of the above states will provide

an attenuation approximately equal to the sum of

the bits selected.

State

Bias Condition

Low

0 to -3V @ 35 μA Typ.

High

Vee to Vee +0.8V @ 5 μA Typ.

Vee Range= -5 Vdc ± 10%

Vee

(VDC)

Iee (Typ.)

(mA)

Iee (Max.)

(mA)

-5

2

5

-2

-1

0

1

2

03

69

12

15

FREQUENCY (GHz)

HMC424LP3E

v08.0809

0.5dB LSB GaAs MMIC 6-BIT DIGITAL

ATTENUATOR, DC - 13 GHz