For the AD9361, what is the max output rate for the aux DAC? It is programmed by SPI but what limits the output frequency? What is the max output frequency? What is the recommended interface for output driver?
Input rate of AUXDAC depends on the SPI rate as the DAC words are written using SPI writes only.
There is no specific driver recommendation, there are various parameters to ser the vref, Aux DAC Vout. Depending on application you can select appropriate driver if required.
refer UG-671 AUXDAC registers section page 13
So the auxDAC will work up to the highest SPI data rate that is possible? Is there a bandwidth limitation in the DAC itself?
SPI rate is serial rate and DAC require parallel data, sample rate will not be same.
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