DEMO-MGA-16X16B Datasheet, PDF (8/17 Pages) Broadcom Corporation. – Dual LNA for Balanced Application 450 – 1450 MHz

Table 5. Typical Scattering Parameters, Vdd = 4.8 V, Idd = 35 mA
LNA SPAR (100 MHz – 20 GHz) The S-parameter are for single amplifier.
Freq
(GHz)
0.1
0.5
0.7
0.9
1.0
1.5
1.7
1.9
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
S11
(dB)
-1.022
-6.649
-8.297
-9.364
-9.758
-10.971
-11.091
-11.104
-11.117
-11.087
-11.081
-11.096
-11.006
-10.720
-10.073
-9.286
-8.439
-7.649
-9.206
-11.853
-11.268
-10.277
-11.155
-20.494
-22.385
-14.569
-12.363
-7.890
-12.876
-7.087
-4.516
S11
(ang)
-28.498
-94.870
-112.042
-125.539
-130.241
-151.257
-159.069
-166.151
-169.353
177.265
165.669
154.720
142.943
129.982
118.799
106.890
94.245
72.483
56.581
31.257
-4.194
-26.164
-52.090
-61.926
-159.458
127.065
64.821
-127.305
-10.894
108.141
31.361
S21
(dB)
29.161
22.772
20.318
18.444
17.596
14.416
13.414
12.539
12.131
10.360
8.951
7.826
6.892
6.100
5.351
4.697
4.087
2.997
2.362
1.930
1.289
0.324
-0.159
-0.820
-0.683
-0.727
-1.734
-6.052
-5.846
-4.538
-4.779
S21
(ang)
154.654
104.259
93.331
84.974
81.438
66.113
60.566
55.320
52.718
40.267
28.433
16.983
5.622
-5.563
-16.665
-27.610
-38.486
-58.517
-77.126
-96.806
-117.528
-136.898
-153.598
-168.479
171.235
147.438
115.001
131.616
90.393
103.243
55.113
S12
(dB)
-37.965
-26.459
-24.049
-22.211
-21.400
-18.221
-17.239
-16.328
-15.905
-14.104
-12.604
-11.325
-10.213
-9.244
-8.445
-7.735
-7.175
-6.183
-5.224
-4.263
-3.757
-3.704
-3.353
-3.505
-2.651
-2.279
-2.934
-6.607
-6.352
-4.669
-5.022
S12
(ang)
79.027
66.399
64.475
62.286
61.255
54.575
51.394
48.319
46.647
38.400
29.781
21.025
12.016
2.746
-6.661
-16.237
-26.218
-44.375
-62.113
-81.118
-101.712
-120.862
-139.372
-153.688
-176.492
158.611
125.555
139.045
97.052
108.441
58.513
S22
(dB)
-7.090
-13.896
-15.882
-17.478
-17.917
-20.357
-21.981
-23.407
-23.978
-26.564
-27.136
-25.584
-23.963
-21.945
-19.977
-17.197
-14.231
-10.813
-10.533
-10.307
-8.627
-7.062
-6.702
-6.926
-6.999
-7.115
-5.770
-2.049
-2.285
-3.339
-4.579
S22
(ang)
-19.544
-50.600
-53.370
-54.610
-53.566
-53.259
-58.813
-64.718
-68.957
-97.344
-132.391
-162.526
170.627
142.320
114.528
88.526
70.377
52.241
46.694
43.266
20.267
-2.650
-18.056
-14.524
-18.503
-26.831
-43.836
-74.412
-68.870
-89.195
-112.660
Table 6. Typical Noise Parameters, for single amplifier, Vdd = 4.8 V, Idd = 35 mA
Freq
Fmin
Γopt
Γopt
GHz
dB
Mag.
Ang.
R_n/50
450
0.31
0.570
-15.8
0.039
700
0.23
0.442
4.9
0.035
835
0.21
0.426
25.7
0.034
950
0.23
0.392
34.6
0.035
1450
0.4
0.210
86.0
0.037
Notes:
1. The Fmin values are based on noise figure measurements at multiple input impedances using Focus source pull test system. From these
measurements a true Fmin is calculated.
2. Scattering and noise parameters are measured on coplanar waveguide made on 0.010 inch thick ROGER 4350. The input reference plane is at the
end of the RFinput pin and the output reference plane is at the end of the RFoutput pin as shown in Figure 7.
3. Idd can be obtained by varying the Vg1/Vg2. Refer to figure 7.
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