900MHz SiGe, High IP3,
Low-Noise Amplifiers
Table 2. MAX2642/MAX2643 Typical Scattering Parameters
(R BIAS = 806 ? , high-gain mode, V CC = +3.0V, T A = +25 ° C.)
FREQ
(MHz)
500
600
700
800
820
840
860
880
900
920
940
960
980
1000
1100
1200
1300
1400
1500
S11 MAG
0.865705
0.853946
0.820187
0.775557
0.765138
0.759
0.7495
0.741722
0.736069
0.728957
0.724118
0.719676
0.714506
0.709103
0.691292
0.67035
0.650556
0.635363
0.616202
S11 PHASE
(DEGREES)
-67.5629
-80.7084
-94.1329
-104.428
-106.343
-108.042
-109.928
-111.683
-113.369
-115.127
-116.951
-118.584
-120.313
-121.959
-129.341
-136.703
-143.014
-148.565
-153.536
S21 MAG
1.788918
2.926709
3.884537
4.237314
4.226094
4.214913
4.182436
4.134814
4.085018
4.032105
3.965561
3.903364
3.83867
3.777
3.483283
3.27255
3.09574
2.934971
2.756155
S21 PHASE
(DEGREES)
-115.899
-132.446
-157.426
177.9528
173.3886
169.298
165.3457
161.548
157.8688
154.6118
151.3371
148.3141
145.3527
142.7001
131.8578
121.9156
113.1691
105.3286
96.43876
S12 MAG
0.009763
0.021656
0.029766
0.036728
0.038253
0.038842
0.040084
0.04118
0.04194
0.044642
0.044574
0.044792
0.045551
0.046434
0.054775
0.061407
0.064829
0.075142
0.074664
S12 PHASE
(DEGREES)
164.6001
165.374
148.5047
130.1148
129.5942
128.7876
127.3742
127.2791
125.3719
123.3553
121.8034
120.7695
118.109
119.036
114.7347
108.2008
103.5856
97.9223
92.88747
S22 MAG
0.880237
0.739354
0.49107
0.216415
0.166772
0.121201
0.082263
0.045314
0.016624
0.021369
0.043243
0.066898
0.084163
0.102269
0.169693
0.220689
0.26965
0.315264
0.360706
S22 PHASE
(DEGREES)
-73.81893
-99.52715
-128.1454
-153.3392
-157.7809
-160.7175
-160.9349
-158.0615
-133.0426
-38.41852
-17.90431
-14.20027
-12.76007
-13.88384
-18.18657
-21.72272
-24.86245
-30.21604
-35.70454
8
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