BFP450(2001) 查看數據表（PDF） - Infineon Technologies
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BFP450 Datasheet PDF : 7 Pages
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SIEGET25 BFP450
Noise figure F = f (IC)
VCE = 2 V, ZS = ZSopt
Noise figure F = f (IC)
VCE = 2 V, f = 1.8 GHz
3.0
dB
2.0
1.5
1.0
f = 4 GHz
f = 3 GHz
f = 2.4 GHz
f = 1.8 GHz
0.5
f = 0.9 GHz
0.0
0
10 20 30 40 50 60 70 80 mA 100
IC
Noise figure F = f ( f )
VCE = 2 V, ZS = ZSopt
3.0
dB
4.5
dB
3.5
3.0
2.5
2.0
1.5
1.0
ZS = 50Ohm
0.5
ZS = ZSopt
0.0
0
10 20 30 40 50 60 70 80 mA 100
IC
Source impedance for min.
Noise Figure versus Frequency
VCE = 2 V, IC = 10 mA / 50 mA
+j50
+j25
+j100
2.0
1.5
1.0
IC = 50 mA
IC = 10 mA
0.5
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5 GHz
4.5
f
7
+j10
1.8GHz 0.9GHz
0
10
25
50 100
2.4GHz
3GHz
10mA
50mA
-j10
4GHz
-j25
-j50
-j100
Aug-20-2001
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