BGY685 datasheet(4/8 Pages) PHILIPS

4 / 8 page

1997 Apr 14

Philips Semiconductors

Product speciﬁcation

CATV ampliﬁer module

BGY685

Table 2

Bandwidth 40 to 550 MHz; VB =24V; Tmb =30 °C; ZS =ZL =75 Ω

Notes

1. fp = 55.25 MHz; Vp = 44 dBmV;

fq = 493.25 MHz; Vq = 44 dBmV;

measured at fp +fq = 548.5 MHz.

2. Measured according to DIN45004B:

fp = 540.25 MHz; Vp =Vo;

fq = 547.25 MHz; Vq =Vo −6 dB;

fr = 549.25 MHz; Vr =Vo −6 dB;

measured at fp +fq − fr = 538.25 MHz.

3. The module normally operates at VB = 24 V, but is able to withstand supply transients up to 30 V.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

power gain

f = 50 MHz

16.5

−

17.5

f = 550 MHz

17.6

−

slope cable equivalent

f = 40 to 550 MHz

0.5

−

2dB

ﬂatness of frequency response

f = 40 to 550 MHz

−−±0.2

S11

input return losses

f = 40 to 80 MHz

−−

f = 80 to 160 MHz

−−

f = 160 to 550 MHz

−−

S22

output return losses

f = 40 to 80 MHz

−−

f = 80 to 160 MHz

−−

f = 160 to 550 MHz

−−

S21

phase response

f = 50 MHz

−45

−

+45

deg

CTB

composite triple beat

77 channels ﬂat;

Vo = 44 dBmV;

measured at 547.25 MHz

−−−59

Xmod

cross modulation

77 channels ﬂat;

Vo = 44 dBmV;

measured at 55.25 MHz

−−−62

CSO

composite second order distortion

77 channels ﬂat;

Vo = 44 dBmV;

measured at 548.5 MHz

−−−59

second order distortion

note 1

−−−70

output voltage

dim = −60 dB; note 2

−−

dBmV

noise ﬁgure

f = 550 MHz

−−

8dB

Itot

total current consumption (DC)

note 3

−

220

240

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