MRF492 Datasheet, PDF (3/4 Pages) Motorola, Inc – RF POWER TRANSISTOR NPN SILICON

140
f = 50 MHz
120
100
80
60
40
Pin = 8 W
4W
2W
20
0
7 8 9 10 11 12 13 14 15 16 17
VCC, SUPPLY VOLTAGE (VOLTS)
Figure 4. Output Power versus Supply Voltage
0
– j1.0
– j2.0
50
Zin
1.0
30
f = 25 MHz
Zo = 10 Ω
2.0
VCC = 12.5 V, Pout = 70 W
f
Zin
MHz
Ohms
ZOL*
Ohms
25 1.12 – j1.28 0.85 – j1.46
30 0.93 – j1.24 0.76 – j1.3
50
0.7 – j1.17 0.58 – j1.0
1.0
0
2.0
50
3.0
1.0
30
f = 25 MHz _ZOL*
2.0
Zo = 10 Ω
3.0
ZOL* = Conjugate of the optimum load
4.0
ZOL* = impedance into which the device
ZOL* = output operates at a given output
5.0
ZOL* = power, voltage and frequency.
Figure 5. Series Equivalent Input/Output Impedances
MOTOROLA RF DEVICE DATA
MRF492
3