BFG540W Philips Semiconductors, BFG540W Datasheet - Page 9

• Manufacturer Part Number: BFG540W
• Description: NPN 9 GHz wideband transistor
• Manufacturer: Philips Semiconductors

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