Figure 8, Typical Common Source Amplifier Gain vs Power Out

18

16

14

12

10

8

0

50

100

150

200

250

300

Figure 5, Typical Threshold Voltage vs Temperature

1.2

1.1

1.0

0.9

0.8

0.7

0.6

-50

-25

0

25

50

75

100 125 150

300

250

200

150

100

50

0

02

4

6

8

10

16

12

8

4

0

1

5

10

15

20

25

30

Figure 7, Typical Power Out vs Power In

Figure 6, Typical Output Characteristics

ARF446/447

5.5V

4.5V

5V

6V

VGS=6.5, 8, 10 & 15V

1.0

10

RECTANGULAR PULSE DURATION (SECONDS)

Figure 9, Typical Maximum Effective Transient Thermal Impedance, Junction-To-Case vs Pulse Duration

0.6

0.1

0.05

0.01

0.005

0.001

Note:

Duty Factor D =

t1/t

2

Peak TJ = PDM x ZθJC + TC

t1

t2

0.1

SINGLE PULSE

0.02

0.05

0.2

D=0.5

0.01

Class C

V

DD

= 250V

f = 40.68 MHz

Table 1 - Typical Class C Large Signal Input-Output Impedance

Freq. (MHz)

Z

Z

2.0

13.5

27.0

40.0

65.0

142.0 - j 20

73.0 - j 71

30.0 - j 57

15.0 - j 42

6.2 - j 25

20.40 - j 9.6

2.10 - j 6.4

0.50 - j 2.3

0.30 - j 0.4

Class C

V

DD

= 250V

f = 40.68 MHz