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Highest Bandwidth with the Lowest Latency interface to move lots of data into and out of ADSP-2158x

Question asked by on Apr 27, 2016
Latest reply on May 9, 2016 by Harshit.Gaharwar

Hello ADI Technical support,


My customer will have two ADCs pumping about 320MB/s of data into the DSP for processing. Really, the captured data will go to a FPGA first, then get passed to the DSP for processing/analysis.

1. What is the fastest interface with the lowest latency for getting the data into and out of the DSP?

     -> is the link port the interface with the fastest/highest bandwidth and the lowest latency? Should the customer consider using the ADSP-SC589 to get PCIe and will that be the fastest/highest bandwidth with the lowest latency? Looking for whatever ADI would recommend as the best solution for this requirement.

2. Using the fastest/highest bandwidth interface defined above, what is the latency to get data into/out of the DSP core for processing/analysis?

3. Are the engineering samples for the ADSP-SC58x and/or ADSP-2158x testing out at 450MHz as planned? Or what is the expected fastest core speed for the ADSP-SC58x / ADSP-2158x family?