Datasheet > OCCSA

OCCSA

更新时间： 2024-11-01 06:02:03

品牌	Logo	应用领域
智原科技 - FARADAY		LTE
页数	文件大小	规格书
3页	27K
描述
VIDEO OVERSAMPLING SMD FILTERS

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OCCSA 数据手册

VIDEO OVERSAMPLING SMD

FILTERS

OC SERIES

The OC series range of video oversampling SMD 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 and 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.

· Surface mount compatible

· Flat or Sinx/x versions

· Small size, low cost

· Luminance and Chrominance versions

With reduced analogue filter costs resulting from oversampling techniques, there is an increased need for

manufacturing facilities to avoid the large production costs associated with the presently available through-

hole packages. The Faraday OC range of oversampling filters can be used in surface mount assembly lines

allowing vacuum pick up and reflow.

In order to preserve the integrity of the signal these filters have a good amplitude and group delay

characteristics in the passband which meet requirements of CCIR601 but due to the above considerations do

not have significant attenuation below 21 MHz.

Order code

OCYSA

OCYFA

OCCSA

OCCFA

Impedance

150 W

Sinx/x correction

Sampling Freq.

End of Passband

Amp. ripple (dB)

Yes

27.0 MHz

5.75 MHz

< 0.05 to 5.5 MHz

< 0.1to 5.75 MHz

< 6 ns

27.0 MHz

5.75 MHz

< 0.05 to 5.5 MHz

< 0.1to 5.75 MHz

< 6 ns

13.5 MHz

2.75 MHz

13.5 MHz

2.75 MHz

< 0.1to 2.75 MHz

< 12 ns

< 0.1to 2.75 MHz

< 12 ns

G.D. ripple

Start of stopband

21.5 MHz

> 40 dB

21.5 MHz

>40 dB

10.75 MHz

> 40 dB

110 ns

10.75 MHz

> 40 dB

116 ns

Stopband atten. wrt 100

kHz

Delay time nom. at 200 kHz 55 ns

58 ns

Aqueous Washable

Yes

SMD Reflow Limitations

refer to Data Sheet Fara309

without notice

FARA095d

Page 1 of 2

Sep-05(C)

12 3

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