Philips Semiconductors
HF/VHF power transistor
Product specification
BLW77
30
handbook, halfpage
Gp
(dB)
20
MGP533
7.5
handbook, halfpage
ri
(Ω)
5
MGP534
0
xi
xi
(Ω)
−1
10
0
1
10
f (MHz)
102
VCE = 28 V; IC(ZS) = 100 mA; PL = 130 W; Th = 25 °C;
ZL = 2,5 Ω; neutralizing capacitor: 150 pF.
Fig.13 Power gain as a function of frequency.
13 and 14 are typical curves and hold for a push-pull
amplifier with cross-neutralization in s.s.b class-AB
operation.
2.5
−2
ri
0
−3
1
10
f (MHz)
102
VCE = 28 V; IC(ZS) = 100 mA; PL = 130 W; Th = 25 °C;
ZL = 2,5 Ω; neutralizing capacitor: 150 pF.
Fig.14 Input impedance (series components) as a
function of frequency.
August 1986
10