MRF426 Datasheet, PDF (4/5 Pages) Motorola, Inc – RF POWER TRANSISTOR NPN SILICON

2500
25
V_CC = 28 V
2000
I_CQ = 25 mA
P_out = 25 W PEP
V_CC = 28 V
I_CQ = 25 mA
P_out = 25 W PEP
1500
15
1000
500
0
1.5 2
3
57
10
15 20
30
f, FREQUENCY (MHz)
Figure 7. Output Capacitance versus Frequency
5
1.5 2
3
5 7 10
15 20
30
f, FREQUENCY (MHz)
Figure 8. Output Resistance versus Frequency
5.0
6.0
7.0
8.0
9.0
10.0
12.0
14.0
2.0
3.0
4.0
1.0
0
1.0
1.0
30
2.0
15
7.5
4.0
f = 2.0 MHz
Z_o = 10 Ω
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
12.0
14.0
16.0
18.0
20.0
2.0
3.0
4.0
5.0
V_CC = 28 V
I_CQ = 25 mA
P_out = 25 W PEP
f
Z_in
MHz
Ohms
2.0
6.20 - j6.65
4.0
4.65 - j5.50
7.5
3.25 - j4.05
15
2.45 - j2.90
30
ă1.4 - j0.77
6.0
7.0
8.0
9.0
10.0
12.0
14.0
Figure 9. Series Equivalent Input Impedance
4