Hello, what is the proper way to drive unused channels in AD9257?
Currently, we have them tied to ground but we are wondering if that is correct. Maybe tie to VCM?
Thanks in advance.
Is it possible that tying to ground would introduce noise into the chip?
eagunos, not if you have the scheme i showed above. you will still see some noise bits flicker in the data output. this is characterized by the input referred noise histogram.