BFT25A_15 Datasheet, PDF (7/15 Pages) NXP Semiconductors – NPN 5 GHz wideband transistor

NXP Semiconductors
BFT25A
NPN 5 GHz wideband transistor
Table 8.
f (MHz)
Noise parameters
V_CE (V)
I_C (mA)
500
1
1
F_min (dB)
1.9
_opt
(mag)
0.79
(ang)
4
R_n/50
2.5
0.5
0.2
1
pot. unst.
region
+j
0
−j
0.2
0.2
0.5
1
MSG
11.2 dB
10 dB
8 dB
2
8 dB
4 dB
3 dB
2
5 10
stability
circle
5
10
∞
Γ_opt
F_min = 2 dB
10
5
0.5
1
See Table 9;
Z_o = 50 .
Average gain parameter: MSG = 11.2 dB.
Fig 12. Noise circle figure.
2
mcd109
Table 9.
f (MHz)
Noise parameters
V_CE (V)
I_C (mA)
1 000
1
1
F_min (dB)
2
_opt
(mag)
0.74
(ang)
8
R_n/50
2.6
BFT25A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 12 September 2011
© NXP B.V. 2011. All rights reserved.
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