For the PCB board high speed signal feature:XAUI interface 3.125Gbd serial different signal :60ps,how many bandwidth oscilloscope will measure it exact. What is the measurement error?
For XAUI interface3.125GBd serial different signal,the sound like InfiniBand signal.if use Sinusoidal interpolation method .or like equivalent sample collection, due to its own bandwidth and triggering factors ,when measure 100ps-130ps rising time, Using 7GHz differential probe will make sure error <3%,for measure < 80ps rising time,the errer will more than 10%, Although this is the best solution in a real-time oscilloscope,if just for measure rising time,use network analyzer is the best solution,because it is bandwidth will reach 50G.
