This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

  • Resolved

CDCE813-Q1: CDCE6002 vs. CDCE813-Q1 Jitter Cleaner performance

Intellectual 970 points

Replies: 1

Views: 144

Part Number: CDCE813-Q1

Dear Sir,

I would like to use either CDCE62002 or CDCE813-Q1 for jitter cleaner PLL/VCO(VCX)  as a reference clock to the 2nd stage of RF PLL/VCO.

I could get a good phase noise simulation result with CDCE62002, around -140dBc/Hz for 10MHz input to 15MHz output at 100KHz offset. 

CDCE813-Q1 is very cost effective and would consider if it has small degradation than CDCE62002, but I could not simulate nor reference noise plot in d/s.

May I get your advice of CDCE813-Q1 noise performance at around the above frequencies?

Best regards,

Masa

  • Hi Masa,

    CDCE62002 has superior phase noise performance to CDCE813-Q1. CDCE813-Q1 is based on the CDCE913, I would reccomend against it for high performance requirements.

    If you have a clean 10MHz reference, you will achieve the best performance if you directly input the 10MHz into the RF PLL. The LMX2594 has an internal low noise doubler that can double this to 20 MHz.

    Kind regards,
    Lane

    ____________________________________________________________________________________

    To design your own Clock Tree solution, visit WEBENCH Clock Architect ​​​​

    More information Clock and Timing System products: http://www.ti.com/clock-and-timing/overview.html

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.