BFC505 Datasheet, PDF (9/11 Pages) NXP Semiconductors – NPN wideband cascode transistor

Philips Semiconductors
NPN wideband cascode transistor
Typical application circuits
Product specification
BFC505
handbook, full pagewidth
CD
RB1
CB
C1
RF input
(50 Ω)
RB2
C2
Cin Lin _RB3
RE
Lout
RS
RP
C3
Cout
+VCC
RF output
(50 Ω)
C4
Cpar
CE
MBG218
RS increases stability.
Fig.12 Narrowband amplifier.
handbook, full pagewidth
Vtune
T1 forms a colpitts oscillator.
T2 acts as a buffer amplifier.
1996 Oct 08
+VCC
RF output
E1
T2
T1
E1
MBG227
Fig.13 VCO/buffer combination.
9