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AD9164 SPI communication

I have custom board with to the Chip are ok .Does AD9164 needs DAC Clock  to communicate to SPI port?

I followed the programing sequence as recommeneded by the datasheet. tested this sequence  on AD9164_Eval Board successfully.

but on custom board no repsonse from SPI port either read or write. I know there are many things that can be wrong. but if the supplies are correct and power up sequence is correct what else might cuase DAC to not  communicate to the FPGA?

Any valuable input and comments in bringing up the DAC AD9164  is welcome.

Thank you,


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