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AD9953 amplitude control

Question asked by swisst on Sep 3, 2012
Latest reply on Oct 5, 2012 by DSB

Hi Everyone !


I need to built signal generator 10 Hz - 3 KHz. I've decided to use AD9953 DDS IC + AD8138 Differential DAC Driver.

AD9953 has DAC_Rset pin which is connected to AGND through Rset resistance. Rset value determines DAC maximum output current. The question is - Can I use digital potentiometer instaed of Rset resistance to control output amplitude ?