2SC4988 查看數據表（PDF） - Hitachi -> Renesas Electronics
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2SC4988 Datasheet PDF : 8 Pages
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2SC4988
S Parameter (VCE = 5 V, IC = 5 mA, ZO = 50 Ω)
Freq.
(MHz)
200
400
600
800
1000
1200
1400
1600
1800
2000
S11
MAG.
0.555
0.328
0.225
0.185
0.172
0.179
0.200
0.224
0.253
0.277
ANG.
–66.6
–102.5
–133.1
–160.5
170.5
148.5
131.7
120.0
108.7
99.8
S21
MAG.
9.68
5.98
4.24
3.31
2.71
2.34
2.06
1.86
1.71
1.58
ANG.
124.7
102.2
89.3
80.3
72.4
65.8
59.9
54.4
49.6
44.9
S12
MAG.
0.0717
0.106
0.138
0.170
0.204
0.237
0.270
0.303
0.334
0.365
ANG.
62.3
59.4
60.8
61.4
61.3
60.7
59.5
58.1
56.4
54.5
S22
MAG.
0.672
0.462
0.371
0.326
0.301
0.285
0.276
0.268
0.262
0.256
ANG.
–39.7
–49.8
–53.4
–56.4
–59.9
–63.6
–68.2
–73.2
–78.7
–84.7
S Parameter (VCE = 5 V, IC = 20 mA, ZO = 50 Ω)
Freq.
(MHz)
200
400
600
800
1000
1200
1400
1600
1800
2000
S11
MAG.
0.220
0.135
0.120
0.132
0.155
0.174
0.196
0.225
0.246
0.267
ANG.
–101.8
–149.0
175.1
148.0
129.6
117.3
105.5
97.8
92.0
84.5
S21
MAG.
13.13
7.08
4.83
3.70
3.02
2.58
2.26
2.04
1.86
1.72
ANG.
106.0
90.8
82.2
75.5
69.5
63.9
58.8
54.1
50.0
45.7
S12
MAG.
0.0532
0.0946
0.137
0.178
0.220
0.258
0.296
0.331
0.364
0.397
ANG.
71.5
73.6
72.6
70.8
68.2
65.6
62.9
60.3
57.5
54.7
S22
MAG.
0.401
0.277
0.239
0.221
0.212
0.205
0.201
0.197
0.193
0.190
ANG.
–48.6
–49.0
–50.1
–53.4
–57.9
–63.1
–69.1
–75.7
–82.1
–89.4
6
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