HMC472LP4 / 472LP4E
v06.1108
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 3.8 GHz
Relative Phase vs. Frequency
Worst Case Step Error
5
(Only Major States are Shown)
Between Successive Attenuation States
100
80
1
0.6
0.2
60
40
31.5 dB
16 dB
20
8 dB
-0.2
-0.6
-1
0
-20
-40
0.5-4 dB
0
0.5
1
1.5
2
2.5
3
3.5
4
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
FREQUENCY (GHz)
Bias Voltage & Current
Truth Table
Vdd = +5V 10%
Control Voltage Input
Attenua-
tion State
RF1 - RF2
Vdd
(V)
Idd (Typ.)
(mA)
V1
16 dB
V2
8 dB
V3
V4
V5
1 dB
V6
0.5 dB
4 dB
2 dB
+4.5
+5.0
+5.5
4.7
5.0
5.3
Reference
I.L.
High
High
High
High
High
High
High
High
High
High
High
Low
High
High
High
High
Low
High
High
High
Low
High
High
Low
High
Low
Low
High
High
High
High
High
Low
0.5 dB
1 dB
High
High
High
High
Low
2 dB
High
High
High
Low
4 dB
Control Voltage
High
High
Low
8 dB
State
Bias Condition
High
Low
16 dB
31.5 dB
Low
0 to +0.8 Vdc @ -5 uA Typ.
Low
High
+ 2.0 to + 5.0 Vdc @ 40 uA Typ.
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Note: Vdd = +5V
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
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HITTITE [ HITTITE MICROWAVE CORPORATION ]
