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What is the output frequency of ORI and ORQ outputs in demux mode ADC12dXXXX?

Ilya Grudovik

Prodigy 150 points

What is the output frequency of ORI and ORQ outputs in demux mode ADC12dXXXX?

Fc or Fc/2?

[Sample1>Max][Sample2][Sample3>Max][Sample4]

Output (ORI)= 00? 11? 1010?

over 10 years ago

0 Luke LaPointe over 10 years ago

TI__Genius 13335 points

Hello Ilya,
ORI and ORQ are clocked out at the same rate as the data, Fc/2 for demux mode. Additionally, each OR result refers to the current Data, with which it is clocked out.
Regards,
Luke LaPointe
High Speed Data Converters

0 Ilya Grudovik over 10 years ago

Prodigy 150 points

In demux mode:

[Sample1>Max][Sample2][Sample1][Sample2>Max]

Output (ORI)= 10? 01? 11?

0 Luke LaPointe over 10 years ago in reply to Ilya Grudovik

TI__Genius 13335 points

Hello Ilya,
We're verifying the exact implementation in demux mode and will get back to you with an answer likely early next week.
Regards,
Luke LaPointe
High Speed Data Converters

0 Ilya Grudovik over 10 years ago in reply to Luke LaPointe

Prodigy 150 points

Thank you!

0 Luke LaPointe over 10 years ago in reply to Ilya Grudovik

TI__Genius 13335 points

Hello Ilya,
We are still looking into this issue for you.
Thank you for your patience.
Regards,
Luke LaPointe
High Speed Data Converters

0 Ilya Grudovik over 10 years ago in reply to Luke LaPointe

Prodigy 150 points

I have time to wait

0 Luke LaPointe over 10 years ago in reply to Ilya Grudovik

TI__Genius 13335 points

Hello Ilya,
In demux mode, an overrange on either DI or DId will produce a logic high for ORI (same goes for ORQ). Therefore in the example you provided the ORI output would be 11
Regards,
Luke LaPointe
High Speed Data Converters

0 Ilya Grudovik over 10 years ago in reply to Luke LaPointe

Prodigy 150 points

Thank you very much.
This comprehensive answer.