please refer to sampling theorem, or Nyquist theorem, and the concept of aliasing.
I am FAE in Japanease distributor.
Our customer uses LTC2183 with ENC=80MHz, SCK=2MHz.
They writes data 02h to address 03h for reset by SPI after power on.
Then they writes data 02h to address 03h for CMOS DDR mode setting by SPI .
I will uses Digital Output Randomizer and Alternate Bit Polarity in DDR CMOS mode of LTC2183.
Does LTC2183 execute Digital Output Randomizer and Alternate Bit Polarity before changing from SDR(Single data rate) to DDR(Double data rate)?