BFS540 Datasheet, PDF (7/11 Pages) NXP Semiconductors – NPN 9 GHz wideband transistor

Philips Semiconductors
NPN 9 GHz wideband transistor
Product specification
BFS540
handbook, full pagewidth
90°
1
135°
0.5
pot. unst.
region
1.0
2
45°
0.8
0.6
0.2
0.2
180° 0
Fmin = 1. 3 dB
Γ_OPT
0.5
1
2
F = 1.5 dB
stability
circle
F = 2 dB
0.2
F = 3 dB
5
5
0.4
0.2
0° 0
5
I_C = 10 mA; V_CE = 8 V;
f = 900 MHz; Z_o = 50 Ω.
0.5
−135°
1
−90°
2
−45°
MRC079
1.0
Fig.12 Noise circle.
handbook, full pagewidth
90°
1
135°
0.5
0.2
F = 4 dB
F = 3 dB
F = 2.5 dB
0.2
0.5
1
2
180° 0
Gmax = 8.7 dB
Γ_{MS Fmin = 2. 1 dB}
G = 8 dB Γ_OPT
0.2
G = 7 dB
G = 6 dB
0.5
−135°
1
I_C = 10 mA; V_CE = 8 V;
f = 2 GHz; Z_o = 50 Ω.
−90°
Fig.13 Noise circle.
2
45°
5
5
1.0
0.8
0.6
0.4
0.2
0° 0
5
2
−45°
MRC080
1.0
November 1992
7