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AD9697: restriction for decimation rate

Category: Software
Product Number: AD9697

Hello,

I have a question about AD9697 decimation rate.
Our customer wishes to use AD9696 with the following configuration.
(He is using AD9690 now with the same configuration)

Sample rate = 960MSPS
Decimation rate = 4
L=2, M=2, F=2
Lane rate = 4.8Gbps/Lane

It looks like no problem for AD9697 too.
But this decimation rate(=4) is not allowed in table-31 of the AD9697 datasheet(Rev.0) between 3.375~6.75Gbps.

Could you please explain why the decimation rate = 4 is restricted?



Regards,

y_suzuki



change the figure(Table-31).
[edited by: y_suzuki at 1:43 AM (GMT -4) on 8 Aug 2022]