2SC4228 Datasheet, PDF (5/8 Pages) NEC – HIGH FREQUENCY LOW NOISE AMPLIFIER NPN SILICON EPITAXIAL TRANSISTOR SUPER MINI MOLD

2SC4228
S-PARAMETER
VCE = 3 V, IC = 5 mA, ZO = 50 Ω
FREQUENCY
MHz
100.00
200.00
300.00
400.00
500.00
600.00
700.00
800.00
900.00
1000.00
1100.00
1200.00
1300.00
1400.00
1500.00
1600.00
1700.00
1800.00
1900.00
2000.00
S11
MAG
ANG
.875
.762
.677
.565
.495
.425
.372
.327
.289
.255
.236
.214
.195
.182
.165
.153
.145
.139
.134
.129
–18.6
–35.0
–47.2
–59.4
–67.5
–76.1
–81.6
–88.5
–93.6
–100.5
–105.2
–112.2
–117.6
–123.8
–129.9
–137.4
–144.3
–151.8
–157.0
–164.7
S21
MAG
ANG
14.087
12.290
10.888
9.275
8.300
7.184
6.454
5.818
5.231
4.820
4.444
4.142
3.842
3.554
3.343
3.218
3.091
2.857
2.764
2.624
161.1
145.1
133.6
123.6
115.7
108.9
104.8
99.5
95.5
92.0
88.8
85.3
83.2
79.3
77.4
75.3
73.6
70.4
68.7
66.4
VCE = 3 V, IC = 3 mA, ZO = 50 Ω
FREQUENCY
MHz
100.00
200.00
300.00
400.00
500.00
600.00
700.00
800.00
900.00
1000.00
1100.00
1200.00
1300.00
1400.00
1500.00
1600.00
1700.00
1800.00
1900.00
2000.00
S11
MAG
ANG
.943
.868
.815
.717
.655
.577
.518
.468
.420
.380
.344
.321
.291
.273
.250
.228
.219
.199
.193
.182
–13.4
–26.6
–37.7
–48.9
–56.8
–65.5
–71.2
–78.1
–83.7
–90.6
–94.8
–101.6
–105.9
–111.7
–117.2
–122.4
–128.5
–135.3
–139.6
–146.9
S21
MAG
ANG
9.384
8.668
8.165
7.279
6.780
6.061
5.504
5.074
4.632
4.340
3.951
3.717
3.485
3.306
3.134
2.959
2.819
2.699
2.572
2.474
165.9
152.8
142.9
132.9
125.5
118.0
112.8
106.7
102.8
98.3
94.8
90.5
87.6
84.3
80.7
79.0
76.0
73.9
71.9
68.3
S12
MAG
ANG
.018
.034
.048
.055
.063
.074
.084
.089
.092
.104
.105
.113
.122
.127
.139
.140
.152
.162
.168
.176
78.2
68.6
66.6
65.8
63.5
61.1
63.8
62.7
64.6
62.8
64.2
64.2
63.6
65.0
64.1
64.5
65.4
64.3
62.3
64.8
S12
MAG
ANG
.020
.038
.051
.062
.075
.084
.091
.098
.102
.105
.112
.121
.128
.135
.140
.145
.153
.161
.163
.175
84.1
77.2
67.9
63.9
63.9
60.0
59.7
57.0
59.0
56.6
57.8
59.0
58.7
59.8
58.0
59.5
59.0
58.4
60.3
59.8
S22
MAG
ANG
.958
.888
.800
.719
.669
.610
.600
.560
.543
.519
.512
.497
.476
.481
.467
.466
.458
.456
.451
.445
–10.1
–17.7
–24.4
–26.7
–28.7
–30.3
–30.6
–31.3
–30.1
–33.4
–31.8
–33.4
–33.2
–34.2
–34.6
–34.8
–37.2
–36.1
–38.4
–39.0
S22
MAG
ANG
.969
–7.7
.936
–13.8
.876
–20.9
.804
–23.5
.764
–26.7
.708
–29.7
.685
–31.1
.639
–32.0
.611
–32.8
.592
–35.0
.579
–34.1
.551
–35.0
.532
–35.9
.535
–36.6
.511
–37.5
.516
–37.7
.504
–39.0
.493
–39.9
.489
–41.4
.482
–41.4
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