Philips Semiconductors
CATV amplifier module
Product specification
BGY687B
CHARACTERISTICS
Bandwidth 40 to 450 MHz; VB = 24 V; Tmb = 35 °C; ZS = ZL = 75 Ω.
SYMBOL
Gp
SL
FL
S11
S22
S21
CTB
Xmod
CSO
d2
Vo
F
Itot
PARAMETER
CONDITIONS
power gain
f = 50 MHz
f = 450 MHz
slope cable equivalent
f = 40 to 450 MHz
flatness of frequency response f = 40 to 450 MHz
input return losses
f = 40 to 80 MHz
f = 80 to 160 MHz
f = 160 to 450 MHz
output return losses
f = 40 to 80 MHz
f = 80 to 160 MHz
f = 160 to 450 MHz
phase response
f = 50 MHz
composite triple beat
60 channels flat;
Vo = 46 dBmV;
measured at 445.25 MHz
cross modulation
60 channels flat;
Vo = 46 dBmV;
measured at 55.25 MHz
composite second order distortion 60 channels flat;
Vo = 46 dBmV;
measured at 446.5 MHz
second order distortion
note 1
output voltage
noise figure
dim = −60 dB; note 2
f = 450 MHz
total current consumption (DC) note 3
MIN.
26.2
27.5
0.5
−
20
19
18
20
19
18
−45
−
−
−
−
64
−
−
MAX.
27.8
−
2.5
±0.2
−
−
−
−
−
−
+45
−58
−58
−60
−70
−
6
340
Notes
1. fp = 55.25 MHz; Vp = 46 dBmV;
fq = 391.25 MHz; Vq = 46 dBmV;
measured at fp + fq = 446.5 MHz.
2. Measured according to DIN45004B:
fp = 440.25 MHz; Vp = Vo;
fq = 447.25 MHz; Vq = Vo −6 dB;
fr = 449.25 MHz; Vr = Vo −6 dB;
measured at fp + fq − fr = 438.25 MHz.
3. The module normally operates at VB = 24 V, but is able to withstand supply transients up to 30 V.
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
deg
dB
dB
dB
dB
dBmV
dB
mA
1999 Mar 25
5