For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
3
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 礎 Typ.
High
Vee to Vee +0.8V @ 5 礎 Typ.
Vee Range= -5 Vdc ?10%
Vee
(VDC)
Iee (Typ.)
(mA)
Iee (Max.)
(mA)
-5
2
5
-2
-1
0
1
2
0
3
6
9
12
15
FREQUENCY (GHz)
HMC424LP3E
v08.0809
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 13 GHz
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