Philips BGY685AL - Manual (Page 4)

1997 Apr 10 4
Philips Semiconductors Product specification
CATV amplifier module BGY685AL
Table 2 Bandwidth 40 to 550 MHz; T
case
= 30
°
C; Z
S
= Z
L
= 75
Ω
Notes
1. f
p
= 55.25 MHz; V
p
= 44 dBmV;
f
q
= 493.25 MHz; V
q
= 44 dBmV;
measured at f
p
+ f
q
= 548.5 MHz.
2. f
p
= 540.25 MHz; V
p
= V
o
;
f
q
= 547.25 MHz; V
q
= V
o
−
6 dB;
f
r
= 549.25 MHz; V
r
= V
o
−
6 dB;
measured at f
p
+ f
q
−
f
r
= 538.25 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. MAX. UNIT
G
p
power gain f = 50 MHz 18 19 dB
f = 550 MHz 18.5
−
dB
SL slope cable equivalent f = 40 to 550 MHz 0.5 2 dB
FL flatness of frequency response f = 40 to 550 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 550 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 550 MHz 18
−
dB
CTB composite triple beat 77 channels flat; V
o
= 44 dBmV;
measured at 547.25 MHz
− −
58 dB
X
mod
cross modulation 77 channels flat; V
o
= 44 dBmV;
measured at 55.25 MHz
− −
56 dB
CSO composite second order
distortion 77 channels flat; V
o
= 44 dBmV;
measured at 548.5 MHz
− −
58 dB
d
2
second order distortion note 1
− −
72 dB
V
o
output voltage d
im
=
−
60 dB; note 2 61.5
−
dBmV
F noise figure f = 550 MHz
−
4.5 dB
I
tot
total current consumption DC value; V
B
= +24 V; note 3
−
250 mA