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AD9125 for generating Complex and Real IF with complex baseband inputs

Question asked by Vishnu on Sep 5, 2011
Latest reply on Oct 7, 2011 by Tguy



In our application the baseband processor feeds AD9125 with baseband digital I/Q using the "WORD" mode (I/Q interleaved). Is it possible to generate complex analog I/Q as well as real IF(IF frequency requires using the NCO) with the hardware configuration?

My frequency settings are as follows:

DAC clock frequency = 500MHz

Interpolation = 8X

Input sample rate = 500/8*2 = 125MSPS (I/Q Interleaved)

Input signal as baseband I/Q.


Output configurations

(1) Baseband analog I/Q

(2) IF @ 70MHz (Generated using the complex mixer of AD9125)