MAX2338 查看數據表（PDF） - Maxim Integrated
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MAX2338 Datasheet PDF : 13 Pages
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Triple/Dual-Mode CDMA LNA/Mixers
Layout Considerations
Keep RF signal lines as short as possible to minimize
losses and radiation. Use high Q components for the
LNA input-matching circuit to achieve the lowest possi-
ble noise figure. At the digital mixer outputs, keep the
differential signal lines together and of equal length to
ensure signal balance. For best gain and noise perfor-
mance, solder the exposed paddle evenly to the board
ground plane.
Table 3. MAX2338 PCS Band LNA S-Parameters High-Gain, High-Linearity Mode
FREQUENCY (MHz)
|S11|
∠S11
|S21|
∠S21
|S12|
∠S12
|S22|
30
0.890
-4.9
0.002
-95
0.001
-112
0.996
50
0.883
-7.2
0.001
-60
0.001
-121
0.990
100
0.872
-13.2
0.391
-81
0.002
-178
0.980
200
0.841
-25
0.882
-112
0.007
171
0.970
300
0.799
-35
1.42
-131
0.010
150
0.959
400
0.778
-41
2.1
-153
0.02
125
0.947
600
0.750
-62
2.15
-172
0.02
100
0.943
800
0.706
-75
2.2
162
0.025
80
0.944
1000
0.676
-85
2.45
150
0.029
65
0.919
1200
0.659
-94
2.59
142
0.032
42
0.879
1500
0.634
-108
3.03
134
0.036
31
0.824
1750
0.578
-110
3.58
126
0.038
19
0.780
1900
0.560
-90.8
3.64
120.6
0.04
11.8
0.740
1910
0.558
-91.0
3.64
119.6
0.04
9.06
0.738
1920
0.554
-91.4
3.64
118.9
0.04
8.8
0.733
1930
0.551
-91.7
3.63
118.2
0.04
6.7
0.729
1940
0.547
-92.2
3.63
117.7
0.04
5.3
0.725
1950
0.543
-92.2
3.63
117.0
0.04
4.87
0.720
1960
0.538
-92.4
3.63
116.5
0.04
4.1
0.716
1970
0.536
-92.5
3.61
115.9
0.04
1.8
0.716
1980
0.533
-92.9
3.60
115.2
0.04
1.5
0.711
1990
0.530
-93.0
3.59
114.7
0.04
0
0.707
2000
0.523
-93.4
3.57
113.0
0.04
-2.1
0.702
2250
0.347
-155
2.88
131
0.05
-32
0.518
2500
0.298
-158
2.71
172
0.05
-72
0.489
3000
0.273
-160
2.64
-165
0.06
-94
0.473
4000
0.245
-170
2.03
-145
0.067
-120
0.425
∠S22
-48
-73
-114
-150
-166
-173
173
151
133
115
94.4
81
61.7
60.7
59.6
58.5
57.4
56.1
55.0
53.6
52.3
50.9
49.5
24
5
-18
-30
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