NE681 SERIES
TYPICAL COMMON EMITTER SCATTERING PARAMETERS (TA = 25°C)
NE68139
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
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
2000
3000
4000
5000
0.764
0.675
0.569
0.481
0.432
0.398
0.374
0.354
0.339
0.332
0.333
0.343
0.332
0.343
0.348
0.414
0.502
0.595
0.650
-28
-55
-76
-94
17.806
15.233
12.659
10.620
8.886
7.696
6.888
6.073
5.422
4.963
4.576
4.264
3.912
3.656
3.433
2.656
1.829
1.426
1.119
156
138
126
116
107
102
97
93
88
85
81
78
76
73
71
56
38
17
1
0.002
0.008
0.018
0.025
0.035
0.043
0.046
0.056
0.055
0.066
0.069
0.076
0.080
0.089
0.098
0.129
0.192
0.256
0.317
53
70
61
59
59
58
59
59
60
61
62
62
63
63
66
60
60
50
44
0.944 -12
0.855 -19
0.734 -22
0.698 -25
0.602 -24
0.589 -24
0.530 -26
0.522 -25
0.493 -28
0.493 -25
0.488 -28
0.457 -27
0.467 -29
0.449 -29
0.447 -29
0.388 -40
0.323 -63
0.302 -95
0.343 -126
0.91
0.54
0.69
0.74
0.86
0.86
0.99
0.97
1.13
1.05
1.08
1.09
1.12
1.09
1.06
1.04
1.00
0.88
0.83
39.5
32.8
28.5
26.3
24.0
22.5
21.8
20.4
17.7
17.4
16.5
15.7
14.8
14.3
13.9
11.9
9.8
-110
-120
-133
-141
-152
-159
-166
-174
180
173
171
150
126
110
97
7.5
5.5
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 ]
