HMC425LP3 Datasheet, PDF (3/6 Pages) Hittite Microwave Corporation – 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.4 - 8.0 GHz

v00.0202
HMC425LP3
MICROWAVE CORPORATION
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, 2.4 - 8.0 GHz
9
Worst Case Step Error
Between Successive Attenuation States
2
1.5
1
0.5
0
-0.5
-1
-1.5
-2
1
2
3
4
5
6
7
8
9 10
FREQUENCY (GHz)
Truth Table
V1
16 dB
Control Voltage Input
V2
8 dB
V3
4 dB
V4
2 dB
V5
1 dB
V6
0.5 dB
Attenuation
State
RF1 - RF2
High
High
High
High
High
High
Reference
I.L.
High High High High High Low
0.5 dB
High High High High Low High
1 dB
High High High Low High High
2 dB
High High Low High High High
4 dB
High Low High High High High
8 dB
Low High High High High High
16 dB
Low Low Low Low Low Low
31.5 dB
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Bias Voltage & Current
Vdd Range = 3.0 to +5.0 Vdc
Vdd
(VDC)
Idd (Typ.)
(µA)
+3.0
10
+5.0
30
Control Voltage
State
Bias Condition
Low
0 to 0.2V @ 10 uA Typ.
High
Vdd ± 0.2V @ 5 uA Typ.
Note: Vdd = +3V to +5V
9 - 94
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