MRF842 Datasheet, PDF (4/6 Pages) Motorola, Inc – RF POWER TRANSISTOR NPN SILICON

0
0.5
0.5
1.0
1.5
1.0
1.5
f = 800 MHz ⁸⁷⁰
2.0
ZOL*
900
2.5
836
3.0
3.5
4.0
4.5
5.0
2.0
2.5
3.0
3.5
f = 800 MHz _4.0
Zin
900
836
4.5
870
5.0
Pout = 20 W, VCC = 12.5 Vdc
f
Zin
MHz
Ohms
ZOL*
Ohms
800
1.1 + j4.1
1.9 + j1.5
836
1.2 + j4.3
1.85 + j1.6
870
1.4 + j4.4
1.8 + j1.7
900
1.6 + j4.5
1.8 + j1.8
ZOL* = Conjugate of the optimum load impedance
ZOL* = into which the device output operates at a
ZOL* = given output power, voltage and frequency.
Figure 5. Series Equivalent Input/Output Impedance
MRF842
4
MOTOROLA RF DEVICE DATA