Aim tti 20mhz dds function generator aim tti tg2000 p the aim ttitg2000 breaks new ground by offering a high quality dds function generator at a significantly lower price dds direct digital synthesis is a technique for generating waveforms digitally using a phase accumulator a look up table and a dac the accuracy and stability of the resulting waveforms is related to that of the crystal master clock when correctly engineered the dds generator offers not only exceptional accuracy