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Philips Semiconductors
VHF push-pull power MOS transistor
handbook, full pagewidth
strap
strap
V DD1
50
T1
input
C1
C3
R1
C5
C2
C4
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.
2003 Sep 19
130
IC1
C35
C11
R11
C8
C36
R2 and R7
slider R2
C9
C12
R3
R4
C7 L5
L3
L1
C6
L2
L4
L6
R5
R6
C15
C10
slider R7
strap
strap
C20
L11
C16
C22
R8
C17
L11
V DD1
C13
L12
L9
L7
L13
C26
L8
L14
L10
L15
V DD2
C14
L16
C18
R9
C23
C19
L16
C25
11
150
strap
strap
L22
C21
L21
L17
L19
C27
C29
L18
L20
C28
L23
C24
Product Specification
BLF278
strap
100
strap
50
output
C31
C33
C30
C34
C32
R10
MBC438
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