3 ms·
The mental image I'm getting from your description is a high speed o-scope probe copy-pasted 80 times, which would obviously be insane. But keysight docs show w
by AlotOfReading 1y ago
The mental image I'm getting from your description is a high speed o-scope probe copy-pasted 80 times, which would obviously be insane. But keysight docs show what looks like an entirely normal PCB that literally interposes the BGA with trace wires on every pin, which looks far too simple for a multi GHz signal.
What do they actually look like and are there teardowns that show the analog magic?
- bobmcnamara 1y ago> The mental image I'm getting from your description is a high speed o-scope probe copy-pasted 80 times, which would obviously be insane It's a thing. It's expensive though. At some point you copy-paste scopes and trigger sync them. Edit: https://www.teledynelecroy.com/oscilloscope/oscilloscopeseries.aspx?mseries=484&capid=102&mid=506 https://www.teledynelecroy.com/oscilloscope/oscilloscopeseri...
- AlotOfReading 1y ago$157k starting price for a 4 channel is a bit rich for the kind of work I do.
- bobmcnamara 1y ago100%. I wonder if these are full sampling scopes. In the past we had Equivalent Time Sampling scope(wideband front end, fast sampling slow rate ADC, a variable delay trigger) and many buses have repeatable test patterns that let you trigger that way. They were always a fairly niche device.