NE688 Datasheet, PDF (4/20 Pages) NEC – SURFACE MOUNT NPN SILICON HIGH FREQUENCY TRANSISTOR

NE688 SERIES
TYPICAL SCATTERING PARAMETERS (TA = 25°C)
.4
.2
.8
1
.6
S11
5 GHz
1.5
2
S22
5 GHz
3
4
5
135˚
0
.2
.4 .6 .8 1
-.2
-.4
-.6
-.8 _-1
NE68819
VCE = 0.5 V, IC = 0.5 mA
FREQUENCY
S11
10
20
1.5 2 3 4 5 10 20
S22
-20
0.1 GHz
-10
S11
-5 0.1 GHz
-4
-3
-2
-1.5
S21
S21
180˚ _{5 GHz}
Coordinates in Ohms
Frequency in GHz
225˚
(VCE = 0.5 V, IC = 0.5 mA)
S12
90˚
S12
0.1 GHz
S21
0.1 GHz
1
270˚
S22
GHz
0.1
0.4
0.8
1.0
1.5
2.0
2.5
3.0
MAG
0.976
0.890
0.764
0.726
0.691
0.685
0.689
0.693
ANG
-16.300
-62.900
-108.300
-125.500
-159.300
174.200
150.800
129.200
MAG
1.892
1.635
1.250
1.098
0.859
0.715
0.618
0.554
ANG
164.300
125.300
86.900
72.100
43.500
22.600
6.500
-5.300
MAG
0.061
0.203
0.283
0.294
0.276
0.233
0.184
0.159
ANG
77.700
47.300
18.500
8.100
-10.800
-21.800
-23.000
-8.700
MAG
0.990
0.892
0.757
0.716
0.654
0.626
0.607
0.592
ANG
-9.700
-34.600
-56.300
-64.300
-81.500
-97.700
-115.400
-136.300
45˚
.25
0˚
S12
5 GHz
315˚
K
0.096
0.229
0.428
0.518
0.722
0.946
1.257
1.553
MAG¹
(dB)
14.916
9.060
6.451
5.723
4.931
4.870
2.208
1.042
VCE = 1.0 V, IC = 1.0 mA
0.1
0.955
-18.200
0.4
0.846
-68.100
0.8
0.705 -114.900
1.0
0.666 -132.000
1.5
0.624 -165.000
2.0
0.612 169.600
2.5
0.610 147.400
3.0
0.612 127.000
4.0
0.633
87.700
5.0
0.660
50.700
3.606
2.975
2.125
1.825
1.363
1.102
0.948
0.850
0.731
0.634
164.000
127.000
92.400
79.400
53.900
34.300
17.600
3.100
-22.000
-42.500
0.047
0.153
0.205
0.210
0.200
0.181
0.171
0.189
0.312
0.434
77.800
47.200
21.600
13.300
0.700
-3.100
1.400
9.500
7.300
-14.500
0.985
0.851
0.685
0.636
0.565
0.529
0.503
0.478
0.464
0.542
-10.600
-37.000
-58.000
-65.100
-79.600
-92.900
-107.600
-125.400
-175.100
135.800
0.083
0.197
0.384
0.480
0.727
1.002
1.241
1.295
1.058
1.022
18.849
12.888
10.156
9.390
8.335
7.576
4.481
3.271
2.229
0.747
VCE = 3.0 V, IC = 3.0 mA
0.1
0.902
-25.000
0.4
0.706
-86.100
0.8
0.558 -133.100
1.0
0.528 -148.700
1.5
0.496 -177.500
2.0
0.484 161.200
2.5
0.480 142.700
3.0
0.485 125.800
4.0
0.518
91.200
5.0
0.579
56.600
9.548
6.729
4.185
3.477
2.465
1.924
1.613
1.425
1.187
0.985
160.300
119.100
89.200
78.800
57.900
40.800
25.100
10.500
-17.200
-43.600
0.035
0.098
0.123
0.129
0.143
0.162
0.189
0.224
0.313
0.396
75.900
44.700
29.300
26.300
23.100
22.300
21.100
17.800
4.600
-14.900
0.964
0.708
0.500
0.448
0.383
0.349
0.324
0.295
0.256
0.342
-15.500
-47.700
-66.200
-71.400
-80.700
-89.300
-98.900
-112.300
-159.100
147.600
0.085
0.288
0.552
0.673
0.911
1.068
1.127
1.115
1.030
0.973
24.358
18.367
15.318
14.306
12.365
9.158
7.147
5.973
4.721
3.957
VCE = 3.0 V, IC = 7.0 mA
0.1
0.786
-39.600
0.4
0.542 -113.500
0.8
0.450 -156.200
1.0
0.434 -169.300
1.5
0.420 167.100
2.0
0.411 149.700
2.5
0.410 134.000
3.0
0.413 120.000
4.0
0.460
89.000
5.0
0.533
54.800
18.403
9.834
5.452
4.445
3.072
2.376
1.974
1.726
1.412
1.176
151.700
106.700
82.100
73.700
55.700
40.500
25.900
12.000
-14.800
-40.600
0.031
0.073
0.097
0.109
0.143
0.180
0.220
0.262
0.347
0.413
72.000
44.700
40.800
40.500
38.100
33.900
27.700
19.900
1.500
-18.700
0.903
0.506
0.320
0.281
0.231
0.203
0.179
0.154
0.137
0.255
-25.500
-65.400
-82.200
-86.600
-93.200
-99.000
-106.000
-119.300
177.100
127.900
0.118
0.487
0.797
0.894
1.016
1.069
1.078
1.067
1.024
0.996
27.735
21.294
17.498
16.104
12.550
9.601
7.824
6.606
5.143
4.545
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