NE685 SERIES
TYPICAL SCATTERING PARAMETERS (TA = 25°C)
1
90˚
.8
1.5
.6
2
.4
135˚
45˚
3
S22
4
.2
4 GHz
5
S22
0.1 GHz
10
20
S12
0.1 GHz
4
0
.2
.4 .6
.8
1
1.5
2
3
5
10 20
S21
4 GHz
180˚
0˚
.010 .015.020 .025
S21
.05
-20
-10
S11
0.1 GHz
S11
4 GHz
1
-5
-4
0.1 GHz
-.2
S12
4 GHz
2
3
Coordinates in Ohms
Frequency in GHz
-3
-.4
315˚
225˚
-2
-.6
(VCE = 2.5 V, IC = 1 mA)
-1.5
-.8
-1
270˚
NE68518
VCE = 0.5 V, IC = 0.5 mA
FREQUENCY
S11
S21
S12
S22
K
MAG1
(dB)
GHz
MAG
ANG
MAG
ANG
170.500
MAG
ANG
MAG
ANG
0.1
0.4
0.8
1.0
1.5
2.0
2.5
3.0
0.995
0.941
0.844
0.783
0.644
-7.200
1.819
1.756
1.619
1.530
1.331
1.163
1.054
0.965
0.030
0.107
0.193
0.225
0.263
0.279
0.280
0.283
88.600
67.200
45.300
35.800
15.800
-0.100
-13.000
-23.900
0.997
0.969
0.893
0.853
0.750
0.675
0.629
-3.900
0.024
0.168
0.331
0.410
0.610
0.792
0.952
1.097
17.827
12.151
9.237
8.325
7.042
6.200
5.757
3.431
-29.200
-56.800
-69.300
-99.500
148.100
119.000
106.100
77.200
53.400
32.400
14.800
-22.000
-42.700
-51.500
-69.200
-84.400
-96.600
0.542 -126.400
0.469 -152.900
0.421 -179.100
0.582 -108.400
VCE = 1.0 V, IC = 1.0 mA
0.1
0.4
0.8
1.0
1.5
2.0
2.5
3.0
4.0
0.985
0.917
0.771
0.696
-8.500
-32.500
-62.700
-76.000
3.481
3.293
2.879
2.653
2.160
1.798
1.559
1.385
1.173
169.900
146.500
117.800
105.300
78.600
56.600
37.700
21.000
-10.100
0.023
0.086
0.144
0.165
0.191
0.210
0.214
0.229
0.255
82.400
66.300
44.100
35.500
21.800
7.200
0.985
0.956
0.847
0.789
0.675
0.601
0.554
-5.500
-24.300
-45.300
-53.300
-70.500
-83.800
-94.000
0.108
0.172
0.347
0.440
0.634
0.831
0.998
1.118
1.253
21.800
15.831
13.009
12.063
10.534
9.326
8.624
0.536 -105.900
0.430 -133.000
0.361 -160.200
-0.900
-7.500
-20.700
0.310
0.303
173.400
116.300
0.513 -104.500
0.436 -130.100
5.724
3.601
VCE = 2.5 V, IC = 1.0 mA
0.1
0.4
0.8
1.0
1.5
2.0
2.5
3.0
4.0
0.986
0.926
0.799
0.728
0.573
-7.100
-29.800
-57.100
-69.600
-98.500
3.465
3.301
2.949
2.743
2.275
1.921
1.664
1.471
1.252
170.500
148.800
121.700
109.700
83.400
61.500
42.300
25.900
-5.200
0.018
0.063
0.116
0.139
0.161
0.180
0.189
0.196
0.226
83.900
67.000
47.000
39.100
24.100
11.100
4.400
0.996
0.970
0.878
0.834
0.732
0.671
0.628
0.586
-4.400
-21.200
-39.900
-47.800
-63.800
-76.200
-85.500
-96.200
0.103
0.174
0.345
0.419
0.610
0.789
0.944
1.102
1.207
22.844
17.193
14.052
12.952
11.502
10.283
9.447
0.455 -123.900
0.364 -150.100
0.311 -174.900
-4.300
-11.500
6.805
0.270
124.900
0.520 -118.800
4.685
VCE = 3.0 V, IC = 10 mA
0.1
0.4
0.8
1.0
1.5
2.0
2.5
3.0
4.0
5.0
0.759
0.451
-22.200
-68.600
22.471
13.915
8.120
6.664
4.559
3.474
2.832
2.402
1.921
1.635
157.900
114.600
88.400
79.400
61.500
46.300
31.700
18.900
-6.500
-32.300
0.018
0.047
0.068
0.079
0.114
0.143
0.172
0.203
0.268
0.322
81.900
62.800
51.600
50.400
45.400
39.500
30.800
21.100
2.500
0.906
0.646
0.472
0.435
0.398
0.382
0.372
0.367
-15.600
-40.900
-51.300
-55.200
-63.600
-73.500
-80.700
-90.700
0.205
0.597
0.890
0.965
1.024
1.072
1.094
1.100
1.080
1.070
30.963
24.714
20.770
19.261
15.071
12.212
10.294
8.809
0.249 -101.700
0.184 -116.600
0.111 -153.200
0.080
0.078
0.084
0.149
0.282
169.100
130.600
95.900
68.500
46.400
0.311 -112.900
0.208 -155.700
6.829
-17.000
5.438
Note: 1. Gain Calculations:
2
1 + | Δ |2 - |S11
|
2 - |S22
S21|
|
|S21
|S12
|
|
K 2 - 1 ). When K ≤ 1, MAG is undefined and MSG values are used.
Δ = S11 S22 - S21 S12
|S21
|
(
K
MAG =
MSG =
, K =
,
|S12
|
2 |S12
CEL [ CALIFORNIA EASTERN LABS ]
