CDCE813-Q1: Jitter cleaner select

Jiawei Hu1

Expert 5555 points

Part Number: CDCE813-Q1
Other Parts Discussed in Thread: CDCE6214-Q1

Hi team,

My customer are looking for one clock jitter cleaner to use in below application.

The 947 jitter requirement is 0.2UI, which 1UI is equal to 1/(7*fClk)
The PCLK of oLDI is 2056*741@60Hz, so the clk frequency is around 45.7MHz.

Could you kindly give a recommendation part for above application? Customer want to a cheap part. Thanks!

Jiawei

over 3 years ago

0 Jennifer Bernal over 3 years ago

TI__Genius 16425 points

Hi Jiawei,

The CDCE813-Q1 or CDCE6214-Q1 should meet their 0.2/(7*45.7MHz) = 625ps jitter requirement. If the customer wants to confirm the actual total jitter measurement, they may follow this app note.

0 Jiawei Hu1 over 3 years ago in reply to Jennifer Bernal

TI__Expert 5555 points

Hi Bernal,

Thanks for your recommendation. The oLDI CLK+- are differential input, how to use CDCE813-Q1 to clean clock jitter? CDCE813 seems only has one input. If CDCE813 isn't suitable, pls help recommend another device, thanks!