PCM1754 delay time definition

Hi Machida,

Yes the delay time should not have been removed, and will be in the next version of the data sheet.

Justin

Justin-san,

Thank you for your reply.
>Yes the delay time should not have been removed, and will be in the next version of the data sheet.
Can you share this information before ?

At least, I would like to know whether "delay time" depends on sampling rate such as PCM1808(in case of PCM1808, delay time is defined as 17.4/fs) or not and delay time is constant(this means there is little difference b/w min and max of delay time) or not . 

Best Regards,
Machida

Hi Machida-san,

The delay is 18/fs and does depend on the sampling rate.

Justin

Hi Justin-san,

Thank you for your reply.
>The delay is 18/fs and does depend on the sampling rate.
Is it for PCM1754 ? Did you indicate PCM1753/55 ?

By the way, could you please confirm below ?

* How much min delay time and max delay time will be observed on PCM1808 / PCM1754 ?
In my understanding, delay time is constant but may be changed dependent on external factor(like input jitter, temperture, ripple of power supply etc..)

Best Regards,
Machida

Hi Machida-san,

The delay of the PCM1754 is 18/fs, I even made the measurement in this post: e2e.ti.com/.../1845290

The majority of the delay time will come from the filter, which will also be dependent on the sampling rate.

Justin