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CDCLVP1216: Max skew variance between outputs across power cycles

Nir Flysher
Expert 3267 points
Part Number: CDCLVP1216

Hi Team,

Can you please support us on the question below ?

According to the datasheet the output to output skew is a maximum of 30ps.

I need to know if the skew is constant.

 

For example, if I measure the skew to be 30ps between OUT0 to OUT15 - will it remain 30ps on the next power up?

Will it remain 30ps on different temperatures?

 

IF it is not constant, what is the maximum deviation?

Regrds,

Nir

  • 0
    TI__Expert 6140 points

    Hello Nir, 

    It will be constant (1-2 ps difference) given a set of parameters - voltage, temperature, specific ch-ch combination. It will have some drift over temperature and voltage (5-10 ps) and there will be variation for specific CH-CH combinations, for example CH0-CH1 could be 0 ps whereas CH0-CH9 is10 ps - this is due to layout and physical location/distances. 

    Note those numbers are not specific to this device, that's typical behavior of CH skew measurements. 

    Thanks and regards,

    Amin