AD9082 FFH using GPIO

Thanks for the inquiry. There is no setup/hold timing requirement for GPIO signal, but we will double check and get back to you along with the minimum strobe width.

Regards

YH

We confirm that there is no requirement for setup/hold time for GPIO. The minimum strobe width is 24 DACCLK cycles and the hop delay using GPIO is documented in the "Hop Time Delay" section of the UG-1578 document. In that section, you will find "As the GPIO pins are sampled asynchronously inside the device, some variance may exist when correlating the calculation to a measurement taken in a particular setup. The variance is typically within 2 nS. ". That's the reason why the setup/hold time doesn't matter.

-YH

We confirm that there is no requirement for setup/hold time for GPIO. The minimum strobe width is 24 DACCLK cycles and the hop delay using GPIO is documented in the "Hop Time Delay" section of the UG-1578 document. In that section, you will find "As the GPIO pins are sampled asynchronously inside the device, some variance may exist when correlating the calculation to a measurement taken in a particular setup. The variance is typically within 2 nS. ". That's the reason why the setup/hold time doesn't matter.

-YH