DEMO-ALM-81224 Datasheet, PDF (14/23 Pages) Broadcom Corporation. – High Linearity 1450 – 2750 MHz Variable Gain Amplifier

Typical 2650 MHz RF Performance Plots
Application circuit and build of material can be seen in Figure 70 and Table 3 respectively.
0
-5
-10
-15
-20
-25
25° C
-30
-40° C
85° C
-35
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Frequency (GHz)
Figure 59. S11/S22/S21 vs Freq at 2650 MHz at 25° C
0
-5
-10
-15
-20
-25
-30
-35
0.5 1.0 1.5 2.0 2.5 3.0
Frequency (GHz)
Figure 60. S11/S22/S21 vs Freq at 2650 MHz at -40° C
25° C
-40° C
85° C
3.5 4.0
30
25
20
15
10
5
0
25° C
-5
-40° C
85° C
-10
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Frequency (GHz)
Figure 61. S11/S22/S21 vs Freq at 2650 MHz at 85° C
25
36
20
32
15
28
10
24
5
Gain
20
0
Noise Figure
16
-5
12
-10
8
-15
4
-20
0
0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6
VcATT (V)
Figure 62. Gain & Noise Figure vs Vc_att at 2650 MHz at 25° C
25
36
20
32
15
28
10
24
5
Gain
20
0
Noise Figure
16
-5
12
-10
8
-15
4
-20
0
0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6
VcATT (V)
Figure 63. Gain & Noise Figure vs Vc_att at 2650MHz at -40°C
25
36
20
32
15
28
10
24
5
Gain
20
0
Noise Figure
16
-5
12
-10
8
-15
4
-20
0
0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6
VcATT (V)
Figure 64. Gain & Noise Figure vs Vc_att at 2650 MHz at 85° C
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