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

FARA039d

Page 1 of 2

Dec-99(C)

STEEPNESS FACTOR 1.35

This range of 7-pole Elliptical Function Low Pass Filters is similar to a type which has been successfully used

in broadcasting for many years but is offered in a small size with improved group delay and amplitude ripple.

The filters are corrected for Group Delay distortion over approx. 95% of the passband and for loss distortion

over the entire passband. Degradation of a composite video signal is minimal when a 4.5 MHz or 5.5 MHz

filter is selected for a 525 or 625 line T.V. system.

Order Code

End of Passband

Start of Stopband

Group Delay Ripple

Delay Time

MHz

MHz

ns max

ns

FF0200UD

2.00

2.70

25.0

1575

FF0250UD

2.50

3.38

20.0

1260

FF0300UD

3.00

4.05

17.0

1050

FF0350UD

3.50

4.73

15.0

900

FF0400UD

4.00

5.40

13.0

786

FF0450UD

4.50

6.08

11.0

700

FF0500UD

5.00

6.75

10.0

630

FF0550UD

5.50

7.43

9.0

573

FF0600UD

6.00

8.10

8.5

525

FF0650UD

6.50

8.78

8.0

485

FF0700UD

7.00

9.45

7.5

450

FF0750UD

7.50

10.13

7.0

420

FF0800UD

8.00

10.80

6.5

394

FF0850UD

8.50

11.48

6.0

370

FF0900UD

9.00

12.15

5.5

350

FF0950UD

9.50

12.83

5.5

332

FF1000UD

10.00

13.50

5.0

315

This range may be extended up to 30 MHz. Filters with other end of passband frequencies within the range can be

supplied at no extra cost.

Order as FF****UD inserting the frequency required in place of the asterisk eg for 5.23 MHz FF0523UD.

Other data

Impedance

75 ohms

Stopband attenuation wrt 100 kHz

> 40 dB

Amplitude ripple in passband

< 0.05 dB

Video performance for filters of 5.0 MHz (4.5 MHz for 525 line) and above.

Pulse and bar: K - rating

< 0.5%

Luminance/Chrominance Gain inequality (20T)

< 2%

Luminance/Chrominance Delay inequality

< 10 ns

Aqueous Washable

No

Package

DR00065B

FF...UD SERIES

GENERAL PURPOSE LP FILTER