0

0.02

0.04

0.06

0.08

0.10

0.12

0.14

0.1

1

10

RF

Input

L3

L1

L2

Output

C14

C10

C13

C12

C15

C16

L6

C6

C5

C9

C4

C8

C7

C1, C2, C6, C7 ARCO 465 mica trimmer

C3 1800pF ATC700B ceramic

C4 680pF metal clad 500V mica

C5 390pF metal clad 500V mica

C8 100pF ATC 700E ceramic

C9 120pF ATC 700E ceramic

C10 - C13 .01uF 100V ceramic SMT

C14 - C16 .1uF 100V ceramic SMT

L1 110nH 4t #22 0.312"d .30"l

L2 29nH 2t #22 .188" dia .10" l

L3 0.3uH - 6t #16 enam. .5" dia.

L4 22nH - 1t #16 enam. .375" dia.

L5 117nH - 3t #16 enam. .5" dia. .3"l

L6 1t #16 on 2x 267300081 .5" bead

R1-R2 1kW 1/4W

R3 10W 1/4W

50V

Vbias

C1

C2

C3

C11

R1

R2

R3

L4

L5

30MHz Test Circuit

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

0

200

400

600

800

1000

1200

0

5

10

15

20

0

200

400

600

800

1000

1200

0

10

20

30

40

50

60

70

80

P

Figure 6. P

P

Figure 7. P

50V

40V

Freq=30MHz

Freq=65MHz

50V

40V

Figure 8.

0.3

D = 0.9

0.7

SINGLE PULSE

0.5

0.1

0.05