• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 21 subscribers
  • Views 632 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

Zero delay clock multiplier with 2.5V, single end input/output

Kawai
Guru 19775 points
Other Parts Discussed in Thread: CDCVF25081, CDCVF855, CDCE62002

Hello Team,

Our customer is looking for a zero delay clock multiplier which could be used with 2.5V. Is there a 2.5V version device of CDCVF25081 ?

I could find some zero delay clock multiplier such like CDC857, CDCV850 and CDCVF855/857. Could these be used with single end input/output application ?

Please let us know if there is a recommendation.

Best Regards,

Kawai

  • 0
    TI__Mastermind 24205 points

    Hi Kawai-San,

    I dont see a simple solution to meet your needs based on a quick search of our portfolio. One potential candidate device for this application, with some modifications is CDCE62002.

    This device can support 3.3V LVCMOS on the output. A simple resistor divider network can scale the single-ended output to 2.5V. Zero delay function can be achieved per the workaround suggested in the application note.

    As far as the input on REF_IN is concerned, the customer can simply AC couple with 0.1uF capacitor and DC bias (using 10K resistors) the input signal to 1.65V before feeding into REF_IN. This should ensure sufficient swing to meet the VIL/VIH requirements of 0.3Vcc - 0.7Vcc

    Please note that is an undocumented/unverified proposal. There might be better options that someone else on the team could perhaps suggest.CDCE62002_as_zero_delay_buffer_rev0p9.pdf

    Regards

    Arvind Sridhar