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

Fara070d

Page 1 of 2

Aug-05(C)

Features

• Space saving SIL package

•

Small size, low cost

•

Sinx/x Selectable or Flat versions

•

Luminance and Chrominance versions

This range of analogue filters has been designed for use in conjunction with a half band

interpolating/decimating filter such as the TRW2242 or with the many encoder chips available which employ

digital filtering combined with an output D to A converter. This type of digital filtering has good attenuation

between the frequencies of Fs/4 and 3Fs/4 where Fs is the Master Clock rate. When the normal clock rate of

27 MHz is used for the luminance channel the signal can be expected to have insignificant energy between

6.75 MHz and 20.25 MHz.

An analogue filter is required to attenuate the clock and sideband to reconstruct the signal. In order to

preserve the integrity of the signal these filters have a good amplitude and group delay characteristics in the

passband, similar to the requirements of CCIR601 but due to the above considerations do not need

significant attenuation below 21 MHz.

Order code

FL676

FL714

FL677

FL715

Impedance

75

Ω

75

Ω

75

Ω

75

Ω

Sinx/x correction

No

Selectable

No

Selectable

Sampling Frequency

27.0 MHz

27.0 MHz

13.5 MHz

13.5 MHz

End of Passband

5.75 MHz

5.75 MHz

2.75 MHz

2.75 MHz

Amp. Ripple

Flat

< 0.1 dB

< 0.1 dB

< 0.1 dB

< 0.1 dB

Sinx/x

1

-

< ± 0.2 dB

-

< ± 0.2 dB

G.D. ripple

Flat

< 6 ns

< 6 ns

< 12 ns

< 12 ns

Sinx/x

-

< 10 ns

-

< 20 ns

Start of stopband

21.5 MHz

21.5 MHz

10.75 MHz

10.75 MHz

Stopband atten.

2

>40 dB

> 40 dB

> 40 dB

> 40 dB

Delay time nom.

3

30 ns

27 ns

58 ns

50 ns

Aqueous Washable

Yes

Yes

Yes

Yes

Package

DR00034A

DR00064B

DR00034A

DR00064B

Other package sizes and styles are available

Video Oversampling Filters

SIL RANGE