Philips Semiconductors
Product specification
BFG540W
BFG540W/X; BFG540W/XR
NPN 9 GHz wideband transistor
stability
circle
handbook, full pagewidth
o
90
1.0
1
o
o
0.8
0.6
0.4
0.2
0
135
45
2
0.5
unstable
0.2
5
F
= 1.3 dB
min
region
Γ
opt
0.2
0.5
1
2
5
o
o
180
0
0
F = 1.5 dB
F = 2 dB
F = 3 dB
5
o
0.2
0.5
2
o
45
135
1
MLC051
1.0
o
90
f = 900 MHz; VCE = 8 V; IC = 10 mA; Zo = 50 Ω.
Fig.17 Common emitter noise figure circles; typical values.
o
90
handbook, full pagewidth
1.0
0.8
0.6
0.4
0.2
0
1
o
o
135
45
2
0.5
0.2
5
0.2
0.5
F
1
2
5
o
o
180
0
0
= 2.1 dB
Γ
opt
= 9.8 dB
min
G
G = 9 dB
max
0.2
G = 8 dB
5
F = 1.5 dB
F = 3 dB
F = 4 dB
0.5
2
o
o
45
135
1
MLC052
1.0
o
90
f = 2 GHz; VCE = 8 V; IC = 10 mA; Zo = 50 Ω.
Fig.18 Common emitter noise figure circles; typical values.
9
1997 Dec 04
NXP [ NXP ]
