Philips Semiconductors
CATV amplifier modules
Product specification
CGD914; CGD914MI
handboo−k,5h0alfpage
CTB
(dB)
−60
−70
MCD988
48
Vo
(dBmV)
(1)
44
(2)
(3)
(4)
40
−80
36
−90
0
32
200
400
600
800 1000
f (MHz)
ZS = ZL = 75 Ω; VB = 24 V; 112 chs flat (50 to 750 MHz).
(1) Vo.
(2) Typ. +3 σ.
(3) Typ.
(4) Typ. −3 σ.
Fig.14 Composite triple beat as a function of
frequency under flat conditions.
handboo−k,6h0alfpage
Xmod
(dB)
−70
−80
−90
MCD989
48
Vo
(dBmV)
(1) 44
(2)
40
(3)
36
(4)
−100
0
32
200
400
600
800 1000
f (MHz)
ZS = ZL = 75 Ω; VB = 24 V; 112 chs flat (50 to 750 MHz).
(1) Vo.
(2) Typ. +3 σ.
(3) Typ.
(4) Typ. −3 σ.
Fig.15 Cross modulation as a function of frequency
under flat conditions.
handbook−,5h0alfpage
CSO
(dB)
−60
−70
MCD990
(2)
48
(3)
Vo
(4) (dBmV)
(1) 44
40
handbook−,5h0alfpage
CSO
(2)
(dB)
−60
(3)
−70
(4)
MCD991
48
Vo
(dBmV)
(1)
44
40
−80
36
−80
36
−90
0
32
200
400
600
800 1000
f (MHz)
ZS = ZL = 75 Ω; VB = 24 V; 112 chs flat (50 to 750 MHz).
(1) Vo.
(2) Typ. +3 σ.
(3) Typ.
(4) Typ. −3 σ.
Fig.16 Composite second order distortion (sum) as
a function of frequency under flat
conditions.
−90
0
32
200
400
600
800 1000
f (MHz)
ZS = ZL = 75 Ω; VB = 24 V; 112 chs; flat (50 to 750 MHz).
(1) Vo.
(2) Typ. +3 σ.
(3) Typ.
(4) Typ. −3 σ.
Fig.17 Composite second order distortion (diff) as
a function of frequency under flat
conditions.
2000 Jul 25
8