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LMK04832: About CMOS output from LMK04832

shen jie
Prodigy 215 points
Part Number: LMK04832

Tool/software:

Hi,

I just want to configure CLKoutY LMK04832 as CMOS format as below figures shown, and have two questions about it:

1. CMOS(Norm/Norm) means that CLKoutY_P is normal 3.3v LVCOMS Clock output and CLKoutY_N is normal 3.3v LVCOMS Clock output too， right？

2. When CLKoutY is configured as CMOS(Norm/Norm) format, how about skew or delay between CLKoutY_P and CLKoutY_N? 

Thanks in advance！

Best regards！

Jason

  • 0
    TI__Genius 10235 points

    Jason,

    shen jie said:
    1. CMOS(Norm/Norm) means that CLKoutY_P is normal 3.3v LVCOMS Clock output and CLKoutY_N is normal 3.3v LVCOMS Clock output too， right？

    Correct, normal meaning it's not 180 degrees out of phase with the "normal" signal.

    shen jie said:
    2. When CLKoutY is configured as CMOS(Norm/Norm) format, how about skew or delay between CLKoutY_P and CLKoutY_N?

    We do not have the validation data for this, but I would assume is less than 35ps (or less than skew of 2 outputs in the same CLKout pair).

    Best,

    Andrea

  • 0 in reply to Andrea Vallenilla
    Prodigy 215 points

    Hi, Andrea:

    Thanks a lot!

    For question 2, could you please make a measurement if it is convenient for you or you have time? I will appreciate it very much.

    Thanks in advance!

    Best regards!

    Jason

  • 0 in reply to shen jie
    TI__Genius 10235 points

    Jason,

    I'm going OoO tomorrow and won't be back until Monday. I can probably get back to you by next week with this measurement. Note that the value I give you will not be across temperature, parts, process variation, etc. just a one spot check in the lab.

    Best,

    Andrea