BLF573_BLF573S#4

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Product data sheet

Rev. 4 — 1 September 2015

9 of 16

BLF573; BLF573S

HF / VHF power LDMOS transistor

[1]

American Technical Ceramics type 100B or capacitor of same quality.

C15

multilayer ceramic chip capacitor

33 pF

[1]

C16

multilayer ceramic chip capacitor

36 pF

[1]

C17

multilayer ceramic chip capacitor

16 pF

[1]

C19

electrolytic capacitor

220

F; 63 V

L1

2 turns enamelled copper wire

D = 3 mm;

d=1mm;

length = 2 mm;

leads = 2

 6mm

L2

4 turns enamelled copper wire

D = 2 mm;

d=1mm;

length = 13 mm;

leads = 2

 5mm

L3

stripline

-

(L

 W) 96 mm  3 mm

L4, L5

stripline

-

(L

 W) 15 mm  8 mm

L6

stripline

-

(L

 W) 105 mm  6 mm

L7

stripline

-

(L

 W) 3 mm  6 mm

L8

stripline

-

(L

 W) 12 mm  6 mm

R1

metal film resistor

100

; 0.6 W

Table 9.

Printed-Circuit Board (PCB): Rogers 5880;



thickness copper plating = 35

Component

Description

Value

Remarks

Fig 9.

Class-AB common-source production test circuit

001aaj148

C8

C1

C20

C10

C16

C18

C19

R1

L1

L2

L7

L8

L5

L4

L3

L6

C3

C7

C4

C15

C17

C2

C5

C6

B1

C9

C11

C12

C13

C14

input

50

Ω

output

50

Ω