I tried different sclk frequencies in serial mode spi writing op.
Datasheet says, it works properly in max 80 MHz sclk. USB controls are disabled, I communicate by triple row headers.
When I set sclk 20 MHz, response as following pic;
when sclk is 5 MHz;
The question is that when we accept 80 MHz expression, why response time of AD9915 is so slow? Do you have any comments or opinion?