MRF448 Datasheet, PDF (3/6 Pages) Motorola, Inc – RF POWER TRANSISTOR NPN SILICON

400
f = 30 MHz
ICQ = 250 mA
300
200
VCC = 50 V
40 V
400
f = 30, 30.001 MHz
300
ICQ = 250 mA
IMD = d3
200
IMD = – 30 dB
– 35 dB
100
100
0
0
4
8
12
16
20
Pin, INPUT POWER (WATTS)
Figure 2. Output Power versus Input Power
0
20
30
40
50
60
VCC, SUPPLY VOLTAGE (VOLTS)
Figure 3. Output Power versus Supply Voltage
25
400
20
350
15
300
10
250
VCC = 50 V
ICQ = 250 mA
5
Pout = 250 W
200
0
2
4
7 10
15
f, FREQUENCY (MHz)
150
30
1
Figure 4. Power Gain versus Frequency
f = 30 MHz
ICQ = 250 mA
VCC = 50 V
TC = 50°C
100°C
35
10
30 50
OUTPUT VSWR
Figure 5. RF SOAR (Class AB)
Pout versus Output VSWR
250
– 25
VCC = 30 V
200
– 30
VCC = 50 V
f = 30, 30.001 MHz
15 V
d3
150
– 35
100
d5
– 40
50
– 45
0
0
5
10
15
20
– 5025
IC, COLLECTOR CURRENT (AMPS)
Figure 6. fT versus Collector Current
75
125
175
225
275
Pout, OUTPUT POWER (WATTS PEP)
Figure 7. IMD versus Pout
MOTOROLA RF DEVICE DATA
MRF448
3