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NE944 Datasheet(PDF) 4 Page - California Eastern Labs

Part # NE944
Description  NPN SILICON OSCILLATOR AND MIXER TRANSISTOR
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Manufacturer  CEL [California Eastern Labs]
Direct Link  http://www.cel.com
Logo CEL - California Eastern Labs

NE944 Datasheet(HTML) 4 Page - California Eastern Labs

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TYPICAL COMMON EMITTER SCATTERING PARAMETERS (TA = 25°C)
VCE = 2.5 V, IC = 2.5 mA
Coordinates in Ohms
Frequency in GHz
(VCE = 2.5 V, IC = 2.5 mA)
NE94430
FREQUENCY
S11
S21
S12
S22
KS21
MAG1
(MHz)
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
(dB)
(dB)
50
.929
-13.0
4.051
160.3
.017
89.3
.977
-6.0
0.10
12.2
23.8
100
.854
-24.4
3.892
148.7
.030
66.4
.936
-10.9
0.47
11.8
21.1
200
.735
-50.1
3.591
129.9
.049
56.9
.843
-16.2
0.65
11.1
18.7
300
.608
-74.2
3.285
114.9
.060
53.8
.788
-18.4
0.78
10.3
17.4
400
.498
-96.3
2.956
102.1
.069
52.3
.756
-19.9
0.89
9.4
16.3
500
.423
-113.8
2.607
92.2
.076
52.4
.738
-21.8
0.99
8.3
15.4
600
.382
-126.3
2.273
84.7
.084
53.1
.728
-23.7
1.06
7.1
12.8
700
.355
-136.7
2.013
78.4
.091
54.1
.721
-25.7
1.13
6.1
11.3
800
.338
-145.4
1.803
72.9
.099
54.6
.717
-28.0
1.17
5.1
10.1
900
.327
-152.6
1.630
68.0
.107
55.3
.713
-30.2
1.21
4.2
9.1
1000
.318
-159.5
1.490
63.5
.115
56.0
.710
-32.6
1.22
3.5
8.2
1500
.308
172.6
1.071
45.4
.157
58.2
.704
-43.9
1.25
0.6
5.4
2000
.315
148.6
0.851
31.3
.201
58.7
.702
-56.4
1.20
-1.4
3.7
2500
.340
125.9
0.710
21.1
.257
58.2
.691
-69.1
1.14
-3.0
2.1
3000
.379
105.4
0.614
14.8
.326
55.2
.670
-82.8
1.11
-4.2
0.8
50
.819
-19.8
7.561
154.4
.014
88.3
.946
-8.5
0.20
17.6
27.3
100
.740
-38.0
6.980
138.9
.025
63.8
.874
-13.2
0.57
16.9
24.5
200
.511
-76.6
5.906
117.4
.037
59.4
.771
-15.6
0.77
15.4
22.0
300
.414
-106.3
4.762
101.6
.046
58.2
.732
-16.4
0.92
13.6
20.2
400
.354
-125.6
3.819
91.5
.052
59.9
.713
-17.5
1.07
11.6
17.0
500
.326
-138.4
3.152
84.3
.064
60.3
.705
-19.2
1.09
10.0
15.1
600
.313
-147.8
2.671
78.4
.072
61.7
.701
-21.1
1.15
8.5
13.3
700
.306
-155.6
2.318
73.3
.081
62.4
.699
-23.2
1.18
7.3
12.0
800
.303
-162.1
2.050
68.7
.089
62.7
.697
-25.4
1.21
6.2
10.8
900
.302
-167.8
1.839
64.4
.098
63.2
.696
-27.7
1.22
5.3
9.9
1000
.303
-173.3
1.669
60.4
.106
63.5
.695
-30.1
1.24
4.4
9.0
1500
.316
163.0
1.169
43.8
.151
64.6
.696
-41.4
1.19
1.4
6.3
2000
.333
141.1
0.914
30.2
.198
64.3
.699
-53.8
1.12
-0.8
4.6
2500
.361
119.9
0.751
20.2
.259
62.8
.691
-66.3
1.05
-2.5
3.3
3000
.401
100.9
0.642
13.9
.332
58.7
.672
-79.9
1.02
-3.8
2.0
VCE = 3 V, ICE = 5 mA
MAG =
|S21|
|S12|
K - 1
).
2
(K ±
∆ = S11 S22 - S21 S12
When K
≤ 1, MAG is undefined and MSG values are used. MSG = |S
21
|
|S12|
, K = 1 + | ∆ | - |S
11
| - |S22|
2
2
2
2 |S12 S21|
,
Note:
1. Gain Calculations:
MAG = Maximum Available Gain
MSG = Maximum Stable Gain
NE944 SERIES
j50
j25
j10
0
-j10
-j25
-j50
-j100
j100
0
10
25
50
100
S22
.05 GHz
S22
3 GHz
S11
.05 GHz
S11
3 GHz
120˚
90˚
60˚
30˚
150˚
180˚
-150˚
-120˚
-90˚
-60˚
-30˚
.5
5
4
3
.4
.3
S21
0.5 GHz
S12
3 GHz
S21
3 GHz
2
S12
0.5 GHz
1
.2


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