START540 Datasheet, PDF (3/7 Pages) STMicroelectronics – NPN Silicon RF Transistor

START540
COMMON EMITTER S-PARAMETERS ( V_CE = 2V, I_C = 20mA )
f
S₁₁
S₂₁
S₁₂
GHz
MAG
ANG
MAG
ANG
MAG
ANG
0.1
0.699
-21.6
42.32
164.0
0.009
88.9
0.5
0.545
-89.7
27.82
119.9
0.027
58.1
0.9
0.480
-130.0
18.42
98.1
0.036
48.1
1
0.476
-137.4
16.86
94.0
0.038
47.2
1.5
0.483
-166.9
11.63
76.9
0.048
41.6
1.8
0.494
179.6
9.63
68.2
0.052
38.8
2
0.503
172.2
8.49
63.1
0.055
36.7
2.5
0.513
157.6
6.46
53.6
0.061
31.7
3
0.533
147.8
5.34
45.9
0.069
26.7
3.5
0.551
139.6
4.54
36.6
0.077
21.2
4
0.559
133.8
3.87
28.3
0.085
13.7
COMMON EMITTER S-PARAMETERS ( V_CE = 2V, I_C = 5mA )
f
S₁₁
S₂₁
S₁₂
GHz
MAG
ANG
MAG
ANG
MAG
ANG
0.5
0.816
-50.5
14.56
140.8
0.038
65.8
0.9
0.715
-84.6
11.92
118.2
0.058
48.4
1
0.695
-92.5
11.32
113.2
0.061
45.0
1.5
0.620
-128.0
8.64
91.5
0.075
30.9
1.8
0.589
-145.6
7.39
80.9
0.080
23.8
2
0.581
-156.1
6.66
74.5
0.080
19.3
2.5
0.570
-167.6
5.87
8.0
0.082
14.8
3
0.572
167.6
4.37
51.7
0.085
5.7
3.5
0.585
155.3
3.74
40.4
0.090
1.1
4
0.592
146.1
3.20
30.6
0.094
-5.0
S₂₂
MAG
ANG
0.942
-12.2
0.642
-50.6
0.431
-70.6
0.397
-74.7
0.272
-96.2
0.220
-110.7
0.193
-123.3
0.148
-154.4
0.142
-171.4
0.153
177.9
0.154
162.7
S₂₂
MAG
ANG
0.879
-30.3
0.720
-49.0
0.685
-53.1
0.515
-71.9
0.425
-81.8
0.374
-88.4
0.316
-96.8
0.225
-166.8
0.208
-128.4
0.184
-141.2
COMMON EMITTER NOISE-PARAMETERS ( V_CE = 2V, I_C = 5mA )
f
F_min
Γ_opt
R_n
r_n
|S₂₁|²
F₅₀
GHz
dB
MAG
ANG
Ω
-
dB
dB
1.8
0.91
0.39
100.8
6.4
0.128
17.38
1.12
2
0.96
0.48
115.2
6.38
0.127
16.47
1.22
2.5
1.01
0.48
136.8
5.94
0.118
14.35
1.34
3
1.14
0.46
163
5.6
0.112
12.82
1.38
3.5
1.3
0.39
-160
5.2
0.104
11.46
1.42
4
1.4
0.32
-122.4
5
0.1
10.12
1.66
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