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Low cost logic analyzer probe for Rigol MSO5000 EasyEDA project

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bbandi:
Hi,

This design should work with the 1074z, right? I mean, with a custom 68pin-50pin converter of course.

Thanks,
Andras

S. Petrukhin:
Yes.

justanothername:
Ok, I built this and it seems to work. The negative edges are omewhat jittery at 5 MHz (with the DG1022 as source). Can't tell why. I tried connecting the plane to gnd with solder jumper and I installed more decoupling capacitors.
Does not have any effect. Could be a display thing, or something with my generator or it could be caused by ringing (my guess). Since I do not have the original probe, I can't say if it behaves differently, better or worse...
Anyway for normal usage it is satisfactory so I wont dig any more into this. Thanks again for the design.

ebclr:
On the Output of MC33375ST-3.3t3g on schematics show 4v, The correct value isn't 3.3V? Or do you use another regulator?

normi:

--- Quote from: ebclr on March 26, 2021, 12:47:51 am ---On the Output of MC33375ST-3.3t3g on schematics show 4v, The correct value isn't 3.3V? Or do you use another regulator?

--- End quote ---

4V is the voltage supplied by the scope, and is regulated down to 3.3V.

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