ADAU145x datasheet ASRC group delay calculation
On page 81 of Rev.D of the ADAU145c datasheet there are calculations for the ASRC group delay :
The same equations appear in the AD1895 datasheet, so surely they must be correct.
In the first equation fs_in is in both terms and fs_out is not used and it reduces to GDS = (48 / fs_in)
in the second equation fs_in cancels in the second term and it reduces to GDS = (16 / fs_in ) + (32 / fs_out )
I probably wouldn't be asking this question if they were in the reduced form.
Cheers
Alex
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Hello ,
The formula which is mentioned in the datasheet is for the better clarity to the users instead of simplified mathematical method.
So, yes your understanding is correct in this. You can also use the simplified formula as you mentioned.
Regards,
Lalitha.S
I think you reduced formula for second term is not correct, missing multiply, because fs_in is greather than fs_out
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