Input Output Latency

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peterbrad
Posts: 4
Joined: Sat Mar 03, 2018 11:51 pm

Input Output Latency

Post by peterbrad » Mon Apr 30, 2018 11:36 pm

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!

kasaudio
Posts: 7
Joined: Sun Mar 11, 2018 6:03 pm

Re: Input Output Latency

Post by kasaudio » Thu May 03, 2018 10:29 am

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.

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