NE687 查看數據表（PDF） - California Eastern Laboratories.
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NE687 Datasheet PDF : 21 Pages
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NE687 SERIES
TYPICAL SCATTERING PARAMETERS (TA = 25°C)
.4
.2
0
.2
-.2
-.4
.8
1
.6
1.5
2
3
S11
4
5 GHz
5
.4 .6 .8 1
S22
5 GHz
-.6
-.8 -1
1.5 2
10
20
3 4 5 10 20
S22
S11
-20 0.1 GHz
0.1 GHz -10
-5
-4
-3
-2
-1.5
Coordinates in Ohms
Frequency in GHz
(VCE = 1 V, IC = 1 mA)
135˚
S21
180˚ 5 GHz
225˚
90˚
45˚
S12
5 GHz
S12
0.1 GHz S21
0.25
0˚
0.1 GHz
2.5
270˚
315˚
NE68733
VCE = 1.0 V, IC = 1.0 mA
FREQUENCY
S11
GHz
0.1
0.4
0.8
1.0
1.5
2.0
2.5
3.0
4.0
5.0
MAG
0.953
0.864
0.688
0.608
0.451
0.359
0.323
0.320
0.365
0.433
ANG
-8.300
-36.800
-68.700
-82.600
-114.800
-145.300
-175.700
158.100
117.200
87.400
VCE = 1.0 V, IC = 3.0 mA
0.1
0.856
-15.400
0.4
0.631
-56.900
0.8
0.389
-93.700
1.0
0.318 -108.300
1.5
0.216 -145.300
2.0
0.184 179.400
2.5
0.199 149.200
3.0
0.220 127.900
4.0
0.285
99.500
5.0
0.360
80.300
S21
MAG
3.433
3.200
2.683
2.432
1.958
1.631
1.415
1.261
1.059
0.935
ANG
170.300
144.900
117.400
106.200
83.500
66.000
51.400
40.000
21.900
7.700
S12
MAG
0.031
0.111
0.180
0.200
0.223
0.232
0.242
0.263
0.351
0.470
ANG
83.500
66.000
48.900
42.900
34.100
31.500
33.100
36.500
39.100
32.500
8.971
6.949
4.599
3.874
2.790
2.201
1.849
1.617
1.336
1.167
165.000
128.500
101.200
92.100
74.600
61.200
49.400
39.800
22.800
8.000
0.029
0.092
0.135
0.152
0.193
0.237
0.282
0.328
0.420
0.505
80.500
60.700
52.500
51.400
50.400
49.100
46.900
43.800
35.600
25.700
S22
MAG
0.990
0.921
0.778
0.713
0.583
0.501
0.451
0.421
0.399
0.383
ANG
-6.200
-23.100
-39.800
-45.900
-57.200
-65.800
-74.500
-84.700
-107.700
-134.500
K
0.090
0.221
0.412
0.504
0.732
0.939
1.081
1.145
1.076
1.001
0.964
0.751
0.525
0.458
0.358
0.304
0.271
0.252
0.242
0.231
-11.600
-37.200
-52.300
-56.200
-62.900
-69.100
-77.400
-88.300
-114.500
-144.300
0.130
0.416
0.704
0.808
0.972
1.045
1.065
1.065
1.032
1.005
MAG1
(dB)
20.443
14.598
11.733
10.849
9.435
8.470
5.930
4.499
3.119
2.817
24.904
18.781
15.323
14.063
11.600
8.375
6.610
5.366
3.937
3.210
VCE = 1.0 V, IC = 10.0 mA
0.1
0.587
-32.000
0.4
0.295
-88.800
0.8
0.163 -132.400
1.0
0.140 -152.000
1.5
0.133 167.700
2.0
0.151 139.000
2.5
0.183 121.800
3.0
0.210 108.600
4.0
0.263
90.500
5.0
0.330
75.600
19.990
10.311
5.665
4.610
3.194
2.478
2.060
1.786
1.466
1.279
152.200
108.800
88.600
82.100
68.900
58.200
48.100
39.700
24.000
9.700
0.025
0.068
0.115
0.139
0.199
0.257
0.313
0.364
0.457
0.531
75.900
65.200
65.600
64.900
61.600
56.900
51.600
46.100
34.700
23.300
0.862
0.471
0.302
0.266
0.215
0.185
0.166
0.156
0.163
0.169
-22.700
-50.700
-57.000
-58.500
-63.300
-70.200
-80.800
-95.500
-129.300
-164.800
0.306
0.762
0.957
0.994
1.029
1.040
1.035
1.033
1.017
1.007
29.029
21.808
16.925
15.207
11.009
8.616
7.030
5.802
4.267
3.319
Note:
1.Gain Calculations:
( ). MAG = |S21| K ± K 2 - 1 When K ≤ 1, MAG is undefined and MSG values are used. MSG = |S21| , K = 1 + | ∆ | 2 - |S11| 2 - |S22| 2 , ∆ = S11 S22 - S21 S12
|S12|
|S12|
2 |S12 S21|
MAG = Maximum Available Gain
MSG = Maximum Stable Gain
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