ADAU1452 I2C Slave timing spec of tDH (data hold time)
Hi,
Could you please reply to following questions ?
a) ADAU1452 I2C Slave timing spec of tDH (data hold time) is 0.9 us (min) in datasheet, but is this correct ?
We thought data hold time on standard I2C specification is typically 0 us (min).
If it is truly 0.9 us, it is rather hard condition for us to achieve, so please make sure.
b) In case 0.9 us is correct, if real timing of tDH is > 0 us or >0.9 ns(nano second), does it consequent to any communication failure ?
Best Regards,
Audio Signal Processors
adau1452
SigmaDSP Audio Processors
Hello,
Sorry,I still need more time to research this question. I have not forgotten this post.
Dave T
Hello,
You are most correct that there was an error in the specifications. It should be a min of 0 and a max of 0.9us.
This will need to be changed in a future revision.
The part does conform to all the standard I2C specifications.
Dave T
Hello Dave,
Please let me make sure "error in the specification" you mentioned is, datasheet description isn't it ?
Otherwise, datasheet description is valid but it means silicon is not conform to the standard ?
Best Regards,
The Silicon does conform to standards and was tested to conform. The error is in the datasheet.
Dave T
Thanks Dave, for your confirmation.
We are saved.
Best Regards,
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