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GTL2014 VREF pin voltage, when DIR pin is set as HIGH (A to B)

Question asked by Amith Bhat on Sep 17, 2019
Latest reply on Sep 20, 2019 by Tomas Vaverka

Hi,

 

I am using GTL2014 in our design and the Direction pin been set to High (1K pu to 3.3V) ie LVTTL to GTL translation. Currently I have set the VREF to 2/3 of VTT. I would like to know, whether VREF has any importance during LVTTL to GTL translation? as VREF is used as a threshold reference during GTL to LVTTL translation.

 

Please let me know the consequences of setting VREF to 2/3 VTT in such scenario (DIR= H).

 

 

Regards,

Amith K Bhat

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