FARADAY FP443B

GROUP DELAY PRE-CORRECTION
The specifications for a number of television systems state that the transmitted signal must be precorrected 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
© Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice
FARA161d
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Dec-99(A)
PACKAGE DETAIL
Faraday Technology Ltd.
Croft Road Industrial Estate,
Newcastle, Staffordshire
ST5 0QZ. England.
FARA161d
Tel:
Fax:
Email:
Web site:
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+ 44 (0)1782 661501
+ 44 (0)1782 630101
sales@faradaytech.co.uk
http://www.faradaytech.co.uk
Dec-99(A)