10-18GHz LNA VGA
Typical on wafer Measurements
26
24
22
20
18
16
14
12
10
8
6
4
2
0
10
Gain (dB)
CHA2291
NF (dB)
11
12
13
14
Frequency (GHz)
15
16
17
18
Bias Conditions : V5=Vd2,3,4= 5V, Vg1 for Id1= 25mA, Vg2=Vg3,4= -0.5V, Vc= 1.2V
Gain & Noise Figure versus frequency
In jig Measurements
All these measurements include the jig losses (about 0.5dB on gain, 0.2dB on noise figure
and 0.3dB on output power).
Bias Conditions : V5=Vd2,3,4= 5V, Vg1 for Id1= 25mA, Vg2=Vg3,4= -0.5V, Vc= 1.2V
28
24
20
16
12
8
4
0
-4
-8
-12
-16
-20
10
11
12
13
14
15
16
17
18
19
20
Frequency (GHz)
S21(dB)
NF (dB)
S11 (dB)
S22 (dB)
Gain, Return Loss & Noise Figure versus frequency
Ref. : DSCHA22912149 - 29-May-02
3/6
Specifications subject to change without notice
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UMS [ UNITED MONOLITHIC SEMICONDUCTORS ]
