I'm trying to probe a 30MHz clock signal, coming from an FPGA and routed to a CCD sensor.
There are no other components, other than connectors, between source/destination.
When I probe this signal with my oscilloscope, I get a distorted waveform which over shoots and undershoots. The probes I am using are the standard tektronics probes that come with the MSO2024B that we have. They have been calibrated to the scopes 5khz test point and show no overshoot.
The clock signal should be 3.3V peak to peak.
The scope probe ground clip is connected to the 0V reference point near the regulator for the 3v3 rail.
I am investiagting why we are seeing noise on our power supplies after the FPGA has powered up and starts providing the 30MHz clock to the external CCD.