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Input Output Latency

Posted: Mon Apr 30, 2018 11:36 pm
by peterbrad
I wrote some simple verilog code to copy the signal from the fast input to the fast output, and noticed that there is a delay of around 100 ns between the output and input. I am just wondering if this is normal, since the clock rate is 125 MHz (8 ns). Thanks!

Re: Input Output Latency

Posted: Thu May 03, 2018 10:29 am
by kasaudio
In the world of audio, AD and DA converters have some processing latency due to digital oversampling filters. For typical converters this latency is around 0.2 ms (cca 10 samples) at 48 kHz sample rate.

I don't know whetehr this is the case with RP converters, but every AD DA conversion will have some latency (at least one sample) due to nature of the process.