NE687 SERIES
TYPICAL SCATTERING PARAMETERS (TA = 25°C)
90˚
1
.8
1.5
.6
2
135˚
45˚
.4
3
S
12
4
5
5 GHz
.2
S11
5 GHz
10
20
S
21
S
21
S
12
4
180˚
0˚
0
.2
.4 .6
.8
1
1.5
22
5 GHz
2
3
5
10 20
0.25
5 GHz
S
22
0.1 GHz
S
11
0.1 GHz
-20
-10
S
0.1 GHz
0.1 GHz
-5
-4
-.2
5
Coordinates in Ohms
Frequency in GHz
(VCE = 2 V, IC = 3 mA)
-3
-.4
315˚
225˚
-2
-.6
-1.5
-.8
-1
270˚
NE68730
VCE = 1.0 V, IC = 1.0 mA
FREQUENCY
S11
S21
S12
S22
K
MAG1
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
(dB)
0.1
0.4
0.8
1.0
1.5
2.0
2.5
3.0
4.0
5.0
0.942
0.870
0.714
0.639
0.493
0.400
0.334
0.298
0.268
0.328
-7.800
-35.400
-65.000
-77.100
-103.600
-125.900
-147.500
-169.000
145.900
110.600
3.487 169.100
3.178 146.800
2.676 120.900
2.433 110.800
0.028
0.103
0.167
0.185
0.207
0.216
0.224
0.242
0.325
0.449
84.900
67.200
51.600
46.500
39.200
38.200
41.400
46.600
53.700
51.000
0.991
0.924
0.791
0.732
0.621
0.557
0.520
0.495
0.455
0.389
-5.800
-21.300
-36.200
-41.300
-50.400
-56.400
-61.600
-66.800
-77.900
-96.200
0.098
0.208
0.392
0.484
0.707
0.905
1.063
1.139
1.108
1.016
20.953
14.893
12.048
11.190
9.727
8.753
6.464
4.930
3.231
2.652
1.944
1.621
1.412
1.269
1.085
0.990
90.400
75.500
63.200
53.200
38.200
26.400
VCE = 1.0 V, IC = 3.0 mA
0.1
0.4
0.8
1.0
1.5
2.0
2.5
3.0
4.0
5.0
0.853
0.653
0.430
0.361
0.260
0.207
0.173
0.159
0.166
0.239
-14.800
-55.800
-89.900
-102.200
-128.600
-150.800
-173.200
165.900
126.100
103.800
9.270 164.300
7.088 131.200
4.754 105.400
0.026
0.087
0.126
0.141
0.177
0.215
0.255
0.298
0.387
0.476
81.700
61.800
54.000
53.300
54.200
55.000
55.100
54.300
50.200
43.700
0.963
0.758
0.541
0.477
0.388
0.348
0.330
0.322
0.302
0.235
-11.100
-35.400
-49.200
-52.300
-56.600
-59.300
-62.000
-65.400
-74.700
-92.200
0.134
0.385
0.670
0.778
0.951
1.037
1.073
1.072
1.049
1.020
25.521
19.110
15.767
14.549
12.134
9.084
7.114
5.880
4.212
3.302
4.019
2.893
2.283
1.916
1.681
1.394
1.242
97.100
81.600
70.200
60.600
52.200
38.600
26.600
VCE = 1.0 V, IC = 10.0 mA
0.1
0.4
0.8
1.0
1.5
2.0
2.5
3.0
4.0
5.0
0.590
0.314
0.184
0.155
0.119
0.100
0.098
0.099
0.121
0.193
-30.900
-84.600
-120.500
-133.700
-163.200
170.800
146.300
129.000
99.700
20.999 151.700
10.808 111.200
0.022
0.064
0.107
0.129
0.184
0.239
0.292
0.342
0.435
0.516
75.800
66.400
68.000
68.100
66.800
63.900
60.600
56.800
48.800
40.200
0.864
0.479
0.312
0.279
0.239
0.225
0.223
0.224
0.211
0.140
-21.900
-48.700
-53.100
-53.400
-53.900
-55.300
-57.600
-61.100
-72.200
-95.100
0.319
0.749
0.950
0.988
1.030
1.043
1.040
1.035
1.024
1.012
29.798
22.276
17.478
15.788
11.572
9.127
7.483
6.265
4.560
3.565
5.986
4.891
3.377
2.615
2.171
1.884
1.545
1.366
92.200
86.500
75.100
66.300
58.300
50.900
38.800
27.400
95.100
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 ]
