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1998 May 13 5
Philips Semiconductors Product specification
HF amplifier modules BGY148A; BGY148B
Fig.7 Control voltage and input VSWR as functions
of frequency; BGY148A; typical values.
Z
S
=Z
L
=50Ω; P
D
= 10 mW; V
S
= 6 V; P
L
= 3 W; T
mb
=25°C.
handbook, halfpage
4
V
C
(V)
VSWR
in
3.0
2.5
2.0
1.5
1.0
460440
f (MHz)
400380
3
2
1
0
MGD557
420
VSWR
in
V
C
Fig.8 Harmonics as a function of frequency;
BGY148A; typical values.
Z
S
=Z
L
=50Ω; P
D
= 2 mW; V
S
= 4.8 V; P
L
= 3 W; T
mb
=25°C.
−30
−40
−60
−50
380
400 420 440
f (MHz)
MGD558
460
H
2,
H
3
(dBc)
H
3
H
2
Fig.9 Load power as a function of mounting base
temperature; BGY148A; typical values.
Z
S
=Z
L
=50Ω; P
D
= 2 mW; V
S
= 4.8 V; T
mb
=25°C.
handbook, halfpage
−25 100
5
0
1
2
3
4
P
L
(W)
T
mb
(
o
C)
0255075
MDA206
400 MHz
440 MHz