CHA3513_15 Datasheet, PDF (6/10 Pages) United Monolithic Semiconductors – 6-18GHz 3 bit Digital Variable Amplifier

CHA3513
6-18GHz Digital Variable Amplifier
Typical test fixture Measurements @ 25°C
Bias conditions: Vd = 4.5V, Vg tuned for Id = 300mA
Linear Gain versus attenuation states
25
20
15
10
5
0
-5
-10
-15
-20
-25
-30
-35
-40
Switch OFF
-45
-50
0
2
4
6
8
10 12 14 16 18 20 22 24 26
Frequency GHz
Input Return Loss versus attenuation states
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
0
2
4
6
8
10 12 14 16 18 20 22 24 26
Frequency GHz
Ref. : DSCHA3513-8144 - 23 May 08
6/10
Specifications subject to change without notice
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