−50

−45

−40

−35

−30

0

10

20

30

40

10

20

30

40

50

60

0

0.5

1

1.5

2

2.5

0

−50

−45

−40

−35

−30

0

10

20

30

40

VRF148A

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

10

1.0

Peak TJ = PDM x ZθJC + TC

Duty Factor D =

2

t2

t1

Note:

RECTANGULAR PULSE DURATION (seconds)

Figure 5. Maximum Effective Transient Thermal Impedance Junction-to-Case vs Pulse Duration

Typical Performance Curves

P

Figure 7. IMD versus P

OUT

P

Figure 8. P

P

Figure 9. P

Vdd=28V, Idq = 250mA,

Freq=175MHz

IM3

IM5

0

10

20

30

40

50

60

0

1

2

3

4

5

Vdd=28V, Idq = 250mA,

Freq=30MHz

Vdd=28V, Idq = 250mA,

Freq=175MHz

P

Figure 6. IMD versus P

OUT

Vdd=28V, Idq = 250mA,

Freq=30MHz

IM3

IM5