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increase sample rate

Question asked by julianms on Jun 6, 2018
Latest reply on Jun 7, 2018 by travisfcollins

hi,

I know this is a question a litle bit exotic but I'm curious about it.

 

as you know the bottleneck of this board is the usb interface with about 26-24MB/s with the USB backend. This give us a max sample rate about 6 MSPS(2 bytes per sample and complex values).

 

the point is as the converters have 12 bits, 4 bits aren't used in data interface.

 

is we could use the extra 4 bits for sending part of next sample data we could increase the sample rate up to 8MSPS.

 

Even further, if we discard 4 bits of each sample and send just 8 bits (reducing SNR) per sample we could achieve 12MSPS.

 

what should be done in software and hardware to achieve this?.

 

thanks,

regards.

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