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ADC3444: Request for Length Matching Details

Sam Durai
Intellectual 390 points
Part Number: ADC3444

Tool/software:

Hi Team,

I am using the part ADC3444. Does length matching is required between every differential pair of ADC3444? Or length matching only P&N is sufficient? 

I am requesting length matching details for both analog and digital signals.

  • 0
    TI__Mastermind 39590 points

    Hi Sam,

    Yes, please length match each P/N diff pair, analog or digital. Meaning each P/N route should be within +/-1mil tolerance.

    For analog specifically length match each channel otherwise you will have phase issues between channels. If that can be tolerated for your application, then its fine not to length match.

    For the digital, this is serial LVDS, you should really length match all the digital pair connections, but you can relax this to +/-50mil difference between each digital diff pairs. Meaning the largest delta from one pair to another would be +/-50mils.

    Regards,

    Rob