2000 Jan 10 3
Philips Semiconductors Product specification
CATV amplifier modules BGD904; BGD904MI
CHARACTERISTICS
Bandwidth 40 to 900 MHz; VB= 24 V; Tmb=35°C; ZS=ZL=75Ω
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
G
p
power gain f = 50 MHz 19.7 20 20.3 dB
f = 900 MHz 20.5 21 21.5 dB
SL slope straight line f = 40 to 900 MHz 0.4 0.9 1.4 dB
FL flatness straight line f = 40 to 900 MHz −±0.15 ±0.3 dB
S
11
input return losses f = 40 to 80 MHz 21 25 − dB
f = 80 to 160 MHz 22 30 − dB
f = 160 to 320 MHz 21 29 − dB
f = 320 to 550 MHz 18 24 − dB
f = 550 to 650 MHz 17 22 − dB
f = 650 to 750 MHz 16 21 − dB
f = 750 to 900 MHz 16 21 − dB
S
22
output return losses f = 40 to 80 MHz 25 29 − dB
f = 80 to 160 MHz 23 28 − dB
f = 160 to 320 MHz 20 25 − dB
f = 320 to 550 MHz 20 24 − dB
f = 550 to 650 MHz 19 24 − dB
f = 650 to 750 MHz 18 24 − dB
f = 750 to 900 MHz 17 23 − dB
S
21
phase response f = 50 MHz −45 − +45 deg
CTB composite triple beat 49 chs flat; V
o
= 47 dBmV; fm= 859.25 MHz −−68 −66.5 dB
77 chs flat; V
o
= 44 dBmV; fm= 547.25 MHz −−69.5 −67.5 dB
110 chs flat; V
o
= 44 dBmV; fm= 745.25 MHz −−63 −61.5 dB
129 chs flat; V
o
= 44 dBmV; fm= 859.25 MHz −−59.5 −57.5 dB
110 chs; f
m
= 400 MHz;
Vo= 49 dBmV at 550 MHz; note 1
−−63.5 −61.5 dB
129 chs; f
m
= 650 MHz;
Vo= 49.5 dBmV at 860 MHz; note 2
−−58.5 −56 dB
X
mod
cross modulation 49 chs flat; Vo= 47 dBmV; fm= 55.25 MHz −−66 −63 dB
77 chs flat; V
o
= 44 dBmV; fm= 55.25 MHz −−68.5 −66 dB
110 chs flat; V
o
= 44 dBmV; fm= 55.25 MHz −−65.5 −62.5 dB
129 chs flat; V
o
= 44 dBmV; fm= 55.25 MHz −−64 −61 dB
110 chs; f
m
= 400 MHz;
Vo= 49 dBmV at 550 MHz; note 1
−−61.5 −59 dB
129 chs; f
m
= 860 MHz;
Vo= 49.5 dBmV at 860 MHz; note 2
−−60 −57 dB