BLF348 Philips Semiconductors, BLF348 Datasheet - Page 2

• Manufacturer Part Number: BLF348
• Description: VHF linear push-pull power MOS transistor
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
DESCRIPTION
Dual push-pull silicon N-channel
enhancement mode vertical D-MOS
transistor, designed for broadcast
transmitter applications in the VHF
frequency range.
The transistor is encapsulated in a
4-lead, SOT262 A1 balanced flange
envelope, with two ceramic caps. The
mounting flange provides the
common source connection for the
transistors.
PINNING
QUICK REFERENCE DATA
RF performance in a push-pull common source test circuit.
Note
1. Three-tone test method (vision carrier 8 dB, sound carrier 7 dB, sideband signal 16 dB), zero dB corresponds to
October 1992
class-A
High power gain
Easy power control
Good thermal stability
Gold metallization ensures
excellent reliability.
VHF linear push-pull power MOS transistor
PIN
MODE OF OPERATION
peak synchronization level.
1
2
3
4
5
drain 1
drain 2
gate 1
gate 2
source
SOT262A1
DESCRIPTION
224.25
224.25
(MHz)
f
vision
k, halfpage
PIN CONFIGURATION
The device is supplied in an antistatic package. The gate-source input must
be protected against static charge during transport and handling.
Product and environment safety - toxic materials
This product contains beryllium oxide. The product is entirely safe provided
that the BeO discs are not damaged. All persons who handle, use or dispose
of this product should be aware of its nature and of the necessary safety
precautions. After use, dispose of as chemical or special waste according to
the regulations applying at the location of the user. It must never be thrown
out with the general or domestic waste.
V
(V)
28
28
Top view
5
DS
3
1
Fig.1 Simplified outline and symbol.
2
2
2
(A)
I
D
4.6
4.6
4
2
MSB008
( C)
5
T
70
25
WARNING
CAUTION
h
(note 1)
(dB)
d
52
52
im
g 2
g 1
Product specification
P
typ. 75
o sync
(W)
67
MBB157
BLF348
d 2
d 1
s
typ. 13
(dB)
G
11
p