BFG25A 查看數據表（PDF） - NXP Semiconductors.
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BFG25A Datasheet PDF : 12 Pages
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NXP Semiconductors
NPN 5 GHz wideband transistor
Product specification
BFG25A/X
handbook, full pagewidth
0.2
+
j
0
–j
0.2
1
0.5
unstable region
6 dB
4 dB
3 dB
0.2
0.5
1
2
MSG
12.4 dB
11 dB
9 dB
2
stability
circle
OPT
5 F min = 2 dB
10
*
5 10
∞
10
5
0.5
2
1
MCD148
IC = 1 mA; VCE = 1 V; f = 1000 MHz; ZO = 50 Ω; Maximum stable gain = 12.4 dB; Fmin = 2 dB; Γopt = 0.78, 14°; Rn/50 = 2.6.
Fig.13 Common emitter noise figure circles; typical values.
handbook, full pagewidth
0.2
+j
0
–j
0.2
0.5
unstable region
0.2 MSG 0.5
9 dB
7.5 dB
6 dB
1
stability
circle
2
6 dB
4 dB
3 dB
*
OPT
Fmin = 2.4 dB
5
10
1
2
5 10
∞
10
5
0.5
2
1
MCD149
IC = 1 mA; VCE = 1 V; f = 2000 MHz; ZO = 50 Ω; Maximum stable gain = 8.9 dB; Fmin = 2.4 dB; Γopt = 0.72, 38°; Rn/50 = 1.9.
Fig.14 Common emitter noise figure circles; typical values.
Rev. 04 - 27 November 2007
7 of 12
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