AnsweredAssumed Answered

ADAU1451 I2C data hold time

Question asked by Sam.S on Apr 25, 2016
Latest reply on Apr 28, 2016 by Sam.S

Dear Sir,

 

     According ADAU1451 datasheet description as below:

 

     ADAU1451_I2C_Data Hold Time.png

But it's seem against the I2C spec. description as belo

I2C_Spec_Data Hold Time.jpg

 

Our customer use 400KHz I2C, datasheet define “data hold time is >= 0.9us”.

But I2C standard define “data hold time is 0 ~ 0.9us”, ADAU1451 is out of spec.

 

If not a typo, is there allowance range of data hold time?

Our customer's product have another chip with inverse limitation: “data hold time <= 0.9us”.

To meet both two chip, they must set data hold time to exactly 900us, but it is hard to always accuracy.

 

Would you please confirm if it is typo.

 

Thank you!

 

 

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