MRF1946 MRF1946A

4

MOTOROLA RF DEVICE DATA

Figure 8. Typical Performance in a Broadband Circuit

170

f, FREQUENCY (MHz)

155

160

165

175

100

12

80

60

20

Gpe

ηc

INPUT VSWR

Pin = 3 W

VCC = 12.5 V

150

40

10

8

6

4

2.0:1

1.5:1

1.1:1

Figure 9. Series Equivalent Input and

Output Impedance

Zin

f = 136 MHz

220

150

ZOL*

f = 136 MHz

175

175

220

150

Zo = 10 Ω

f

MHz

Zin

Ohms

ZOL*

Ohms

136

150

175

220

0.60 – j0.48

0.63 – j0.26

0.62 + j0.13

0.73 + j0.57

2.22 – j0.74

2.30 – j0.40

2.35 – j0.04

2.20 + j0.43

ZOL* = Conjugate of the optimum load impedance

VCC = 12.5 Vdc, Pout = 30 W