© Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice

FARA161d

Page 1 of 2

Dec-99(A)

The specifications for a number of television systems state that the transmitted signal must be pre-

corrected in terms of group delay to allow for the distortion produced by the IF filters in television

receivers.

CCIR Rep.624 recommends three curves which apply variously to the following systems: B/PAL,

G/PAL, M/PAL and M/NTSC.

The response of the three networks offered correspond to the three recommended curves in terms of

group delay and are equalised to have an amplitude ripple of less than 0.2 dB over the video band.

They are supplied in 40 pin encapsulated modules which occupy a board area of less than 11 sq. cm.

FP443A

FP443B

FP358C

Group Delay Pre-correction

Curve

B/PAL

G/PAL-A

B/PAL

G/PAL-B

M/PAL

M/NTSC

Insertion Loss at 100 kHz

< 1.5 dB

< 1.5 dB

< 1.5 dB

End Of Passband

5.5 MHz

5.5 MHz

5.5 MHz

Passband Amplitude Ripple

< 0.2 dB

< 0.2 dB

< 0.2 dB

Impedance

75 ohms

75 ohms

75 ohms

Temperature Range

0°C to 70°C

0°C to 70°C

0°C to 70°C

Aqueous Washable

No

No

No

Package

DR00020B

DR00020B

DR00020B

GROUP DELAY PRE-

CORRECTION