MRF429 Datasheet, PDF (4/5 Pages) Motorola, Inc – RF POWER TRANSISTOR NPN SILICON

5000
20
V_CC = 50 V
V_CC = 50 V
4000
I_CQ = 150 mA
P_out = 150 W PEP
16
I_CQ = 150 mA
P_out = 150 W PEP
3000
12
2000
8
1000
4
0
1
2
4
7
15
30
60 100
f, FREQUENCY (MHz)
Figure 8. Output Capacitance versus Frequency
0
1
2
4
7
15
30
60 100
f, FREQUENCY (MHz)
Figure 9. Output Resistance versus Frequency
90
60
30
15
7.0
4.0
V_CC Ă= 50 V
I_CQ Ă= 150 mA
P_out = 150 W PEP
f
Z_in
MHz
Ohms
2.0
7.15 - j2.40
4.0
4.20 - j2.25
7.0
2.55 - j1.75
15
1.60 - j1.15
30
1.10 - j0.70
60
0.78 - j0.30
90
0.67 - j0.10
Z_o = 10 Ω
f = 2.0 MHz
Figure 10. Series Equivalent Impedance
4