Philips Semiconductors
CATV amplifier modules
Product specification
BGD902; BGD902MI
handbook−,5h0alfpage
CTB
(dB)
−60
−70
MDA942
52
Vo
(1) (dBmV)
(2)
48
(3)
(4)
44
handbook−,5h0alfpage
Xmod
(dB)
−60
−70
MDA943
52
Vo
(1) (dBmV)
(2)
48
(3)
(4)
44
−80
40
−80
40
−90
0
200
400
600
ZS = ZL = 75 Ω; VB = 24 V; 129 chs;
tilt = 12.5 dB; (50 to 860 MHz).
(1) Vo.
(2) Typ. +3 σ.
(3) Typ.
(4) Typ. −3 σ.
36
800 1000
f (MHz)
Fig.5 Composite triple beat as function of
frequency under tilted conditions.
−90
0
200
400
600
ZS = ZL = 75 Ω; VB = 24 V; 129 chs;
tilt = 12.5 dB; (50 to 860 MHz).
(1) Vo.
(2) Typ. +3 σ.
(3) Typ.
(4) Typ. −3 σ.
36
800 1000
f (MHz)
Fig.6 Cross modulation as function of frequency
under tilted conditions.
handbook−,5h0alfpage
CSO
(dB)
−60
−70
−80
MDA944
52
Vo
(1) (dBmV)
48
(2)
(3)
44
(4)
40
−90
0
36
200
400
600
800 1000
f (MHz)
ZS = ZL = 75 Ω; VB = 24 V; 129 chs;
tilt = 12.5 dB; (50 to 860 MHz).
(1) Vo.
(2) Typ. +3 σ.
(3) Typ.
(4) Typ. −3 σ.
Fig.7 Composite second order distortion as
function of frequency under tilted conditions.
1999 Mar 29
6