bfg25a NXP Semiconductors, bfg25a Datasheet - Page 7

• Manufacturer Part Number: bfg25a
• Description: Npn 5 Ghz Wideband Transistor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1997 Oct 29
handbook, full pagewidth
handbook, full pagewidth
NPN 5 GHz wideband transistor
I
I
C
C
= 1 mA; V
= 1 mA; V
CE
CE
= 1 V; f = 1000 MHz; Z
= 1 V; f = 2000 MHz; Z
+ j
– j
– j
+
j
Fig.13 Common emitter noise figure circles; typical values.
Fig.14 Common emitter noise figure circles; typical values.
0
0
0
O
0.2
0.2
O
0.2
0.2
= 50
= 50 ; Maximum stable gain = 8.9 dB; F
Maximum stable gain = 12.4 dB; F
0.5
0.5
0.5
0.5
0.2
0.2
0.2
MSG
9 dB
7.5 dB
6 dB
0.5
0.5
0.5
12.4 dB
MSG
11 dB
9 dB
6 dB
1
1
1
1
1
1
1
7
4 dB
6 dB
min
4 dB
3 dB
min
= 2.4 dB;
2
2
2
3 dB
= 2 dB;
stability
circle
*
opt
2
2
2
2
opt
5
5
5
= 0.78, 14 ; R
*
= 0.72, 38 ; R
10
10
10
F
MCD149
MCD148
min
OPT
5
5
5
5
= 2.4 dB
10
10
10
10
∞
∞
stability
circle
F
n
n
/50 = 2.6.
min
/50 = 1.9.
OPT
= 2 dB
Product specification
BFG25A/X