BLF348 Philips Semiconductors, BLF348 Datasheet - Page 6

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

Philips Semiconductors
APPLICATION INFORMATION FOR CLASS-A OPERATION
T
RF performance in a linear amplifier (common source circuit class-A circuit).
R
Note
1. Three-tone test method (vision carrier 8 dB, sound carrier 7 dB, sideband signal 16 dB), zero dB corresponds to
Ruggedness in class-A operation
The BLF348 is capable of withstanding a load mismatch corresponding to VSWR = 20 through all phases under the
following conditions:
V
October 1992
class-A
h
DS
GS
VHF linear push-pull power MOS transistor
= 70 C; R
MODE OF OPERATION
peak synchronization level.
= 28 V; f = 224.25 MHz at rated output power.
= 82
per section; optimum load impedance per section = 0.14 + j0.14 .
th mb-h
= 0.15 K/W unless otherwise specified.
224.25
224.25
224.25
224.25
(MHz)
f
vision
V
(V)
28
28
28
28
DS
6
2
2
2
2
(A)
I
D
4.6
4.6
4.6
4.6
( C)
T
70
25
70
25
h
(note 1)
(dB)
d
52
52
55
55
im
P
typ. 70
typ. 75
typ. 57
typ. 62
Product specification
o sync
(W)
67
54
BLF348
typ. 12.5
typ.12.5
typ. 13
typ. 13
(dB)
G
11
11
p