Choosing best clock jitter cleaner

Vladimir Yudovich

Prodigy 110 points

Other Parts Discussed in Thread: CDCI6214

Hi,

I am looking for clock jitter cleaner that could support the following inputs frequencies (in Mhz):

312.500

303.030

156.250

151.515

162.000

the inputs clock is spread and the output clock is expected to follow the same frequency with best jitter performance.

What devices would you recommend?

Thank you in advance,

Vladimir.

over 8 years ago

0 Puneet Sareen over 8 years ago

TI__Expert 8865 points

Hi Vladimir,
DId i understood it right that the input clock has SSC?
Do you want to filter the SSC or the outout clock should follow the SSC?
Best regards
Puneet

0 Vladimir Yudovich over 8 years ago in reply to Puneet Sareen

Prodigy 110 points

Hi Puneet,

Yes your understanding is correct. The input clock has SSC and I want the output clock to follow. There may be some phase shift, but not attenuation, because on the average the clock must be equal.

Thank you,

Vladimir.

0 Shawn Han over 7 years ago in reply to Vladimir Yudovich

TI__Genius 9920 points

Hi Vladimir,
TI's jitter cleaner focus on high performance low jitter applications, so they can't support SSC clock input now.

Regards,
Shawn

0 Vladimir Yudovich over 7 years ago in reply to Shawn Han

Prodigy 110 points

Thank you Shawn for the clarification.

Is there any other TI device that could do the job?

Regards,

Vladimir.

0 Shawn Han over 7 years ago in reply to Vladimir Yudovich

TI__Genius 9920 points

Vladimir,
CDCI6214 could be considered. It claimed "VCO is compatible to 0.5% spread spectrum (SSC) references at 100 MHz.".
But jitter performance should be careful with different frequency. CDCI6214 could have some jitter cleaner function, output jitter also depends on input reference jitter.

Regards,
Shawn

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Choosing best clock jitter cleaner