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February 1995 3
Philips Semiconductors Product specification
CATV amplifier module BGY89
CHARACTERISTICS
Bandwidth 40 to 450 MHz; V
B
= 24 V; T
mb
= 35 °C; Z
S
= Z
L
= 75 Ω.
Notes
1. f
p
= 55.25 MHz; V
p
= 46 dBmV;
f
q
= 343.25 MHz; V
q
= 46 dBmV;
measured at f
p
+ f
q
= 398.5 MHz.
2. Measured according to DIN45004B:
f
p
= 440.25 MHz; V
p
= V
o
= 63 dBmV;
f
q
= 447.25 MHz; V
q
= V
o
−6 dB;
f
r
= 449.25 MHz; V
r
= V
o
−6 dB;
measured at f
p
+ f
q
- f
r
= 438.25 MHz.
3. The module normally operates at V
B
= 24 V, but is able to withstand supply transients up to 30 V.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
G
p
power gain f = 50 MHz 37 − 39 dB
f = 450 MHz 37 −−dB
SL slope cable equivalent f = 40 to 450 MHz 0 − 2.5 dB
FL flatness of frequency response f = 40 to 450 MHz −−±0.4 dB
S
11
input return losses f = 40 to 80 MHz 20 −−dB
f = 80 to 160 MHz 19 −−dB
f = 160 to 450 MHz 18 −−dB
S
22
output return losses f = 40 to 80 MHz 20 −−dB
f = 80 to 160 MHz 19 −−dB
f = 160 to 450 MHz 18 −−dB
S
21
phase response f = 50 MHz −45 − +45 deg
CTB composite triple beat 60 channels flat;
V
o
= 46 dBmV;
measured at 445.25 MHz
−−−58 dB
X
mod
cross modulation 60 channels flat;
V
o
= 46 dBmV;
measured at 55.25 MHz
−−−58 dB
CSO composite second order distortion 60 channels flat;
V
o
= 46 dBmV;
measured at 446.5 MHz
−−−58 dB
d
2
second order distortion note 1 −−−70 dB
V
o
output voltage d
im
= −60 dB; note 2 63 −−dBmV
F noise figure f = 450 MHz −−5.5 dB
I
tot
total current consumption (DC) note 3 − 320 340 mA