DEMO-MGA-16X16B Datasheet, PDF (13/17 Pages) Broadcom Corporation. – Dual LNA for Balanced Application 450 – 1450 MHz

Typical 900 MHz RF Performance Plots on Balanced Mode
RF performance at T_A = 25° C, Vdd1 = Vdd2 = 4.8 V, Idd1 = Idd2 = 60 mA, LNA mode, measured on demo board in Figure
18. Signal is CW unless stated otherwise. Application Test Circuit is shown in Figure 19 and Table 11. IIP3 test condition:
FRF1-FRF2 = 1MHz with input power of -20 dBm per tone.
1.6
26
1.4
100° C
25° C
24
1.2
-40° C
22
1.0
20
0.8
18
0.6
0.4
16
0.2
14
100° C
25° C
-40° C
0.0
450 550 650 750 850 950 1050 1150 1250
Frequency (MHz)
12
450 550 650 750 850 950 1050 1150 1250
Frequency (MHz)
Figure 20. NF vs Frequency vs Temperature^[1]
Figure 21. Gain vs Frequency vs Temperature
26
24
22
20
18
16
14
12
100° C
10
25° C
-40° C
8
450 550 650 750 850 950 1050 1150 1250
Frequency (MHz)
Figure 22. IIP3 vs Frequency vs Temperature
28
27
100° C
25° C
26
-40° C
25
24
23
22
21
20
450 550 650 750 850 950 1050 1150 1250
Frequency (MHz)
Figure 23. OP1dB vs Frequency vs Temperature
30
20
10
0
-10
-20
-30
S(2,1)
-40
S(1,1)
-50
S(2,2)
S(1,2)
-60
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
Frequency (GHz)
Figure 24. Input Return Loss, Output Return Loss, Gain, Reverse Isolation vs
Frequency
13