Re: track length
Hi, if i'm not in error +/- 50Ps are plus or minus 50 Picosecond, intended for rise time.
For a critical lenght, are not so simple. You need impedance, capacitance, delay (for a correct rise time), and others for correct lenght calculation. With Designer assistance, you can read a data sheet for devices requirements.
Another important argument is the devices used, 25Mhz is not very higher frequency, but using very fast devices, this make a problem.
Best, SKywalker.