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Initialization of AD9106


Dear support team,

We try to use AD9106 as a source of four sinus signals with different phases. We have checked that all registers have receipted sent commands, and, in particular, the address 0x01 has stored the state 0000 and the addresses 0x26 and 0x27 have stored states 3131. But we don’t see any signals at the chip outs (the pins 10, 14, 27, 31).

We don’t understand also, why in your figures 32 and 33 data are going from high addresses to low once, while in data sheets above has been written out that “the SPI port automatically increments the register address”.

So we have two questions.

  1. Do our commands in the addresses 0x26 and 0x27 correspond to DDSes mode of operation?
  2. What structure of loading program have we to use in order to receive our signals at the AD9106 output pins?

Thank you in advance.