AnsweredAssumed Answered

DA9777 SPI

Question asked by goal on Jun 17, 2013
Latest reply on Jun 21, 2013 by goal



We are using AD9777 for one of our tone generation applications.

I can see from datasheet that the SPI registers have some bits written in bold which are the default values.

but there are certain bits for example register 00h[4] is not having any default value, So this bit description says "sleep mode logic1 shuts down the DAC output currents" may i know if i have to program any of these registers before using the DAC for tone generation?

I want to use it 2 port mode, no pll. Do i need to set any SPI registers or the default values in the DAC should work as is?