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Hardware configuration

Question asked by Kumar@99 on Apr 4, 2014
Latest reply on Apr 4, 2014 by DougI


We planed to use ADC AD9269 16 bit ADC 80MSPS and DAC AD9747 16bit.

These two devices have two parallel data buses one for each channel.

  • AD9747 states that in single port mode I & Q data can be placed on Port1 data bus. I am interfacing this DAC to ADSP21366 (16 parallel data bus), with what reference (Clock or DCO)  should I post data. Can you send interface details for the above requirement.
  • In 9269 interleaved mode, channel A & B data are valid with reference to DCO, but on which data bus and how to select it.
  • In these ADC and DAC data sheets bypass capacitor values are not mentioned. How to derive these inputs.