BFG25A Datasheet, PDF (7/12 Pages) NXP Semiconductors – NPN 5 GHz wideband transistor

Philips 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
I_C = 1 mA; V_CE = 1 V; f = 1000 MHz; Z_O = 50 Ω; Maximum stable gain = 12.4 dB; F_min = 2 dB; Γ_opt = 0.78, 14°; R_n/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
I_C = 1 mA; V_CE = 1 V; f = 2000 MHz; Z_O = 50 Ω; Maximum stable gain = 8.9 dB; F_min = 2.4 dB; Γ_opt = 0.72, 38°; R_n/50 = 1.9.
Fig.14 Common emitter noise figure circles; typical values.
1997 Oct 29
7