BLF278 查看數據表（PDF） - Philips Electronics

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产品描述 (功能)

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BLF278

VHF push-pull power MOS transistor

Philips Electronics 

Philips Semiconductors

VHF push-pull power MOS transistor

Product Specification

BLF278

handbook, full pagewidth

130

strap

strap

strap

strap

150

strap

strap

strap

100

strap

50 Ω

input

C1 C3

R1

C2 C4

V DD1

T1

L1

C5

L2

IC1

C35

R11

C36

C11

C8

slider R2

R2 and R7

C9

C12

C13

R3

R4

L3

C6

L4

C7 L5 L7

L6 L8

C15

slider R7

R5

R6

C10

C14

C20

C22

L11

R8

C16

C21

C17

L11

V DD1

L12

L9

L13

C26

L10 L14

L17

C27

L18

C28

L15

V DD2

C18

L16

R9

C23 L16 C19 C24

C25

L22

50 Ω

output

L21

C31 C33

L19

C29

L20

C30

C32

C34

L23

R10

MBC438

Dimensions in mm.

The circuit and components are situated on one side of the PTFE fibre-glass board, the other side being fully metallized to serve as an earth.

Earth connections are made by means of copper straps for a direct contact between upper and lower sheets.

Fig.13 Printed-circuit board and component layout for 108 MHz class-B test circuit.

1996 Oct 21

11

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