MRF2628 Datasheet, PDF (4/6 Pages) Motorola, Inc – RF POWER TRANSISTOR NPN SILICON

16
14
GPE
12
10
η_c
8
6
Pin = 0.75 W
VCC = 12.5 V
4
INPUT VSWR
2
0
150
155
160
165
170
f, FREQUENCY (MHz)
80
70
60
1.5:1 ₅₀
1.25:1
1:1 ₄₀
175
Figure 8. Typical Performance in a Broadband Circuit
Zin
f = 136 MHz
220
150 175
Zo = 10 Ω
ZOL*
220
f = 136 MHz
175
150
VCC = 12.5 V, Pout = 15 W
f
Zin
MHz
Ohms
ZOL*
Ohms
136
0.59 – j0.80
5.07 – j4.76
150
0.68 – j0.61
5.23 – j4.14
175
0.69 – j0.17
5.26 – j3.46
220
0.62 + j0.39
5.25 – j2.46
ZOL* = Conjugate of the optimum load impedance
ZOL* = into which the device output operates at a
ZOL* = given output power, voltage and frequency.
Figure 9. Series Equivalent Impedance
MRF2628
4
MOTOROLA RF DEVICE DATA