1997 Apr 09
3
Philips Semiconductors
Product specification
CATV amplifier module
BGY88
CHARACTERISTICS
Table 1
Bandwidth 40 to 450 MHz; 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
= 62 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
33.5
−
35.5
dB
f = 450 MHz
35
−
37
dB
SL
slope cable equivalent
f = 40 to 450 MHz
0.5
−
2.5
dB
FL
flatness of frequency response
f = 40 to 450 MHz
−
−
±
0.3
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
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
−
−
−
59
dB
d
2
second order distortion
note 1
−
−
−
70
dB
V
o
output voltage
d
im
=
−
60 dB note 2
62
−
−
dBmV
F
noise figure
f = 450 MHz
−
−
6
dB
I
tot
total current consumption
DC value; V
B
= +24 V; note 3
−
320
340
mA
