06-18-2013 08:27 AM
Is there any way to bypass the GTP receiver and get the serial input signal on the fgpa interface?
I have a serial signal with 125MHz bitrate which goes to MGTRXP/N pins, I want to receive this signal at my FPGA interfaece without any deserialization. Is there any settings in the GTP to accomplish that?
06-18-2013 08:38 AM - edited 06-18-2013 08:38 AM
I do not think so. If you wired it to the wrong pins, you may need to change your design.
You could over-sample. Running the GTP at a multiple of the input rate allows you to recover the clock and data, but you have to undo the orver-sampling.
06-18-2013 10:29 AM
Thanks for the app note Austin. Its actually not a mistake. I have designed a board which receives 3G video signal on BNC and it utilizes GTP to deserialize that signal and it works fine. I am just researching the possibility of receiving a MADI signal (125MHz) on the same BNC. I guess I should start looking into oversampling.
by any chance do you know any ap note for MADI? I couldn't find any on the website.