BFT25A Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
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BFT25A Datasheet PDF : 14 Pages
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Philips Semiconductors
BFT25A
NPN 5 GHz wideband transistor
4
F
(dB)
3
2
mcd145
f=
2 GHz
1 GHz
500 MHz
4
F
(dB)
3
2
mcd146
IC =
2 mA
1 mA
0.5 mA
1
1
0
10−1
1
10
IC (mA)
0
102
103
104
f (MHz)
VCE = 1 V.
Fig 9. Minimum noise figure as a function of collector
current.
VCE = 1 V.
Fig 10. Minimum noise figure as a function of
frequency.
0.2
+j
0
−j
0.2
1
0.5
2
pot. unst.
region
6 dB
4 dB
2.5 dB
5
stability
circle
10
0.2
0.5
1
2
5 10
∞ Γopt
MSG
Fmin = 1.9 dB
14.5 dB
10
13 dB
5
11 dB
0.5
1
See Table 8;
Zo = 50 Ω.
Average gain parameter: MSG = 14.5 dB.
Fig 11. Noise circle figure.
2
mcd108
9397 750 13399
Product data sheet
Rev. 04 — 6 July 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
6 of 14
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