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ADF5901 and ADF5904 spi timing

Question asked by nmrs1993 on Jul 15, 2018

Hi ,

I try to set the registers of ADF5901 and ADF5904 with FPGA.

my SPI timing is same as datasheet timing but when i try read back the registers the DOUT pin is zero!!!

Is there any special issue in SPI timing of these ICs?