NE687 SERIES
TYPICAL SCATTERING PARAMETERS (TA = 25°C)
90˚
1
.8
1.5
.6
2
135˚
45˚
.4
3
4
S
22
.2
5
5 GHz
S
22
10
20
0.1 GHz
S
12
S
21
4
0
.2
.4 .6
.8
1
1.5
2
3
5
10 20
180˚
0˚
0.1 GHz
5 GHz
S
11
-20
-10
S
11
5 GHz
0.1 GHz
S
21
0.1 GHz
-5
-4
S
12
-.2
5 GHz
-3
Coordinates in Ohms
Frequency in GHz
(VCE = 1 V, IC = 1 mA)
2.5
-.4
315˚
225˚
-2
-.6
-1.5
-.8
-1
NE68718
VCE = 1.0 V, IC = 1.0 mA
270˚
FREQUENCY
S11
S21
S12
S22
K
MAG1
(dB)
GHz
MAG
ANG
MAG
ANG
168.800
MAG
ANG
MAG
ANG
-6.700
0.1
0.4
0.8
1.0
1.5
2.0
2.5
3.0
4.0
5.0
0.962
0.893
0.755
0.689
0.559
0.481
0.440
0.417
0.434
0.512
-8.100
-38.800
-73.500
-89.000
-124.000
-154.200
178.000
152.500
103.700
63.400
3.385
3.278
2.809
2.566
2.063
1.704
1.461
1.288
1.083
0.929
0.023
0.091
0.152
0.170
0.192
0.197
0.195
0.195
0.215
0.270
81.800
62.800
40.300
31.300
13.700
2.300
-5.200
-9.700
-14.400
-23.500
0.993
0.944
0.831
0.776
0.666
0.599
0.560
0.531
0.473
0.410
0.122
0.160
0.321
0.399
0.593
0.787
0.968
1.131
1.264
1.201
21.678
15.566
12.667
11.788
10.312
9.370
8.746
5.997
3.931
2.658
144.800
114.700
101.800
74.800
52.700
33.400
16.800
-13.500
-42.700
-25.400
-45.900
-54.200
-71.100
-84.300
-96.200
-107.700
-133.500
-174.700
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
0.872
0.710
0.501
0.438
0.354
0.321
0.312
0.311
0.361
0.461
-14.000
-60.600
-104.700
-122.100
-159.700
170.800
145.400
123.000
83.600
8.998
7.542
5.258
4.463
3.211
2.502
2.064
1.777
1.438
1.206
165.400
130.500
99.100
87.700
65.100
46.800
30.300
15.400
-12.600
-40.100
0.023
0.079
0.114
0.124
0.144
0.164
0.186
0.210
0.263
0.315
80.600
55.100
37.200
32.100
24.100
18.400
12.900
6.800
0.971
0.807
0.595
0.527
0.425
0.377
0.352
0.334
0.280
0.211
-11.300
-39.500
-61.600
-68.900
-82.000
-92.400
-101.800
-111.500
-136.000
177.500
0.117
0.288
0.543
0.653
0.875
1.025
1.112
1.160
1.163
1.140
25.924
19.799
16.639
15.562
13.483
10.866
8.414
6.851
4.930
3.560
-7.700
-25.300
51.700
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
0.645
0.392
0.270
0.252
0.234
0.234
0.235
0.242
0.300
0.414
-29.400
-95.800
-144.400
-161.700
164.600
140.600
121.100
103.100
73.800
21.295
12.537
7.101
5.792
3.980
3.042
2.489
2.127
1.705
1.421
155.400
110.900
85.100
76.200
58.000
42.500
27.900
14.200
-12.200
-38.700
0.019
0.055
0.085
0.100
0.136
0.174
0.212
0.249
0.318
0.374
74.200
55.600
50.500
48.600
42.200
34.400
25.600
16.000
-4.300
0.892
0.541
0.347
0.303
0.249
0.226
0.215
0.207
0.161
0.141
-21.300
-57.100
-73.800
-79.000
-89.300
-98.900
-107.400
-117.800
-151.100
133.500
0.247
0.618
0.884
0.948
1.037
1.069
1.079
1.080
1.065
1.054
30.495
23.578
19.219
17.628
13.489
10.825
8.983
7.590
5.736
4.375
47.400
-25.800
VCE = 2.0 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
0.881
0.736
0.527
0.454
0.344
0.294
0.274
0.264
0.306
0.407
-12.200
-52.900
-92.900
-109.000
-144.400
-174.000
159.700
136.200
94.100
9.094
7.869
5.706
4.901
3.575
2.789
2.308
1.980
1.605
1.356
166.600
134.300
103.400
91.900
69.100
50.900
34.500
19.800
-7.800
0.017
0.066
0.099
0.109
0.128
0.146
0.166
0.189
0.241
0.296
79.500
58.400
40.800
35.700
27.300
21.700
16.500
11.100
-2.400
-19.700
0.977
0.844
0.653
0.586
0.485
0.434
0.410
0.393
0.343
0.264
-9.600
-34.300
-54.800
-61.700
-74.400
-84.700
-94.000
-103.600
-126.700
-167.400
0.142
0.280
0.521
0.629
0.847
1.002
1.087
1.134
1.130
1.102
27.283
20.764
17.607
16.529
14.461
12.525
9.632
7.975
6.042
4.663
59.500
-35.700
Note:
1.Gain Calculations:
2
1 + | ∆ |2 - |S11
|
2 - |S22
S21|
|
|S21
|
K 2 - 1 ). When K ≤ 1, MAG is undefined and MSG values are used.
∆ = S11 S22 - S21 S12
|S21
|S12
|
|
(
K
MAG =
MSG =
, K =
,
|S12
|
2 |S12
MAG = Maximum Available Gain
MSG = Maximum Stable Gain
CEL [ CALIFORNIA EASTERN LABS ]
