The output Amplitude of my AD9913 changes over frequency. I measured with an oscilloscope with an input resistance of 1MOhm. And i changed the DAC code, so i can alter the amplitude by myself. But for the same DAC code the amplitude is not the same.
The Ref_Clk is a 20MHz TCXO and is multiplied by 12 -->System Clock =240MHz.
Why is the amplitude changing? And what can i do against it?
all measured with DAC Code:1023 (which corresponds to the highest output current)
Good day. I believe this is an identical inquiry to the one that was already posted. Please refer to the thread: AD9913 amplitude is changing over the frequency. How to solve? instead.