BFR94A Просмотр технического описания (PDF) - Philips Electronics
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BFR94A Datasheet PDF : 9 Pages
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Philips Semiconductors
NPN 3.5 GHz wideband transistor
Product specification
BFR94A
handbook, halfpage
VBB
2.2 nF
1.5 kΩ
L2
240 Ω
2.2 nF
10 nF
75 Ω
L1
10 nF
1 nF
DUT
VCC
75 Ω
19 Ω
MEA497
L1 = L2 = 5 µH Ferroxcube choke, catalogue
number 3122 108 20153.
Fig.2 Intermodulation distortion MATV test circuit.
handbook, h4alfpage
fT
(GHz)
3
MEA496
2
1
0
10
10 2
I C (mA)
10 3
VCE = 20 V; f = 500 MHz; Tj = 25 °C.
Fig.3 Transition frequency as a function of
collector current.
handbook,3h0alfpage
d im
(dB)
40
MEA495
50
60
70
80
0
50
Measured in CATV test circuit.
VCE = 20 V; Vo = 60 dBmV;
f(p+q−r) = 194. 25 MHz.
100 I C (mA) 150
Fig.4 Intermodulation distortion as a function of
collector current.
handbook,3h0alfpage
d2
(dB)
40
MEA494
50
60
70
80
0
50
100 I C (mA) 150
Measured in CATV test circuit.
VCE = 20 V; Vo = 48 dBmV; f = 210 MHz.
Fig.5 Second order intermodulation distortion as
a function of collector current.
September 1995
5
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