bfq540 NXP Semiconductors, bfq540 Datasheet - Page 5

• Manufacturer Part Number: bfq540
• Description: Npn Wideband Dual Transistor
• Manufacturer: NXP Semiconductors

NXP Semiconductors
handbook, halfpage
handbook, halfpage
NPN wideband transistor
I
Fig.4
V
f
Fig.6
(dB)
C
d im
p
CE
(pF)
+ f
C re
= 0; f = 1 MHz.
= 8 V; V
1.0
0.8
0.6
0.4
0.2
q
20
30
40
50
60
70
0
10
f
0
r
Feedback capacitance as a function of
collector-base voltage; typical values.
= 793.25 MHz; T
Intermodulation distortion as a function of
collector current; typical values.
o
= 475 mV; R
20
4
L
amb
30
= 50
= 25 C.
40
8
V CB (V)
50
I C (mA)
MBG242
MRA688
Rev. 04 - 25 September 2007
12
60
handbook, halfpage
handbook, halfpage
(GHz)
f = 1 GHz; T
Fig.5
(dB)
V
T
Fig.7
d 2
amb
f T
CE
12
= 8 V; V
20
30
40
50
60
70
= 25 C.
8
4
0
10
10
1
Transition frequency as a function of
collector current; typical values.
Second order intermodulation distortion as
a function of collector current; typical
values.
amb
o
= 225 mV; R
= 25 C.
20
1
L
30
= 50 ; f
p
40
+ f
q
10
= 810 MHz;
Product specification
I C (mA)
50
V CE = 8V
V CE = 4V
I C (mA)
MRA689
BFQ540
MBG243
10
60
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