NE681 SERIES
TYPICAL COMMON EMITTER SCATTERING PARAMETERS
j50
90˚
120˚
60˚
j25
j100
S12
2 GHz
j150
j250
150˚
30˚
j10
S21
0.1 GHz
S21
2 GHz
S
11
2 GHz
50 100 150250500
10
180˚
.05 .10 .15 20 25
0˚
0
0
10
25
S12
0.1 GHz
S22
0.1 GHz
-j250
10
15
20
-j10
S
22
S
11
2 GHz
-150˚
-30˚
0.1 GHz
-j150
-j100
Coordinates in Ohms
Frequency in GHz
-j25
-120˚
S21
25
-60˚
-j50
-90˚
(VCE = 8 V, IC = 10 mA)
NE68133
VCE = 8 V, IC = 7 mA
FREQUENCY
S11
S21
S12
S22
K
MAG1
(dB)
(MHz)
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
100
200
500
1000
1500
2000
3000
0.802
0.639
0.344
0.170
0.115
0.098
0.137
-27.1
-49.2
-83.3
-113.4
-144.1
-176.3
137.6
17.578
14.213
7.671
4.126
2.870
2.254
1.669
153.8
134.2
105.5
86.7
75.3
66.2
0.023
0.039
0.065
0.109
0.160
0.212
0.313
68.7
69.8
67.8
73.5
74.8
74.7
73.2
0.918 -12.7
0.783 -19.9
0.579 -21.5
0.491 -17.7
0.454 -17.8
0.438 -16.9
0.409 -21.0
0.37
0.46
0.81
1.01
1.05
1.04
0.99
28.8
25.6
20.7
15.2
11.2
9.0
53.2
7.3
VCE = 8 V, IC = 10 mA
100
200
0.744
0.553
0.277
0.134
0.092
0.079
0.122
-31.7
-54.5
-87.1
-115.8
-146.2
180.0
134.2
21.212
16.031
8.093
4.284
2.981
2.350
1.736
148.4
127.9
102.0
85.3
75.2
66.5
0.017
0.037
0.061
0.109
0.165
0.217
0.320
57.9
69.0
72.6
76.3
75.9
75.2
73.7
0.896 -14.6
0.737 -21.7
0.540 -20.9
0.461 -17.0
0.430 -16.5
0.413 -16.8
0.380 -21.3
0.50
0.54
0.88
1.04
1.04
1.03
0.99
31.0
26.4
21.2
14.7
11.3
9.3
500
1000
1500
2000
3000
53.9
7.3
VCE = 8 V, IC = 20 mA
100
200
0.594
0.389
0.175
0.089
0.064
0.070
0.120
-43.3
-66.3
-95.5
-127.5
-160.8
167.0
132.5
29.285
19.280
8.683
4.512
3.078
2.406
1.774
138.1
117.5
96.1
82.3
73.3
64.9
53.1
0.013
0.035
0.057
0.110
0.167
0.221
0.322
61.2
73.1
74.0
79.6
78.9
74.9
72.4
0.792 -19.4
0.614 -22.6
0.481 -16.5
0.440 -13.2
0.416 -13.9
0.404 -13.8
0.379 -19.4
0.57
0.69
0.98
1.03
1.04
1.02
0.98
33.5
27.4
21.8
15.1
11.4
9.5
500
1000
1500
2000
3000
7.4
VCE = 8 V, IC = 30 mA
100
0.557
0.354
0.158
0.080
0.065
0.076
0.127
-46.9
-70.7
30.197
19.196
8.499
4.363
3.009
2.348
1.742
135.2
115.1
94.8
81.7
72.7
65.0
53.0
0.017
0.029
0.059
0.111
0.167
0.219
0.325
65.9
73.4
77.7
80.7
80.1
77.1
74.2
0.836 -17.4
0.664 -22.2
0.503 -17.7
0.455 -14.3
0.428 -14.2
0.415 -14.2
0.387 -19.7
0.50
0.67
0.95
1.03
1.03
1.03
0.98
32.5
28.2
21.6
14.9
11.5
9.2
200
500
-100.5
-136.1
-175.0
156.0
128.4
1000
1500
2000
3000
7.3
Note:
1. Gain Calculations:
2
|
1 + | ∆ |2 - |S11
|
2 - |S22
|
|S21
|S12
|
|
K 2 - 1 ). When K ≤ 1, MAG is undefined and MSG values are used.
∆ = S11 S22 - S21 S12
|S21
|S12
|
|
(K
MAG =
MSG =
, K =
,
2 |S12
S21
MAG = Maximum Available Gain
MSG = Maximum Stable Gain
CEL [ CALIFORNIA EASTERN LABS ]
