italie |
MAME owes italie many thank yous, hah
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Reged: 09/20/03
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Posts: 15246
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Loc: BoomTown
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Re: HELP:Measuring refresh rate of PCBs
01/05/11 11:22 PM
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> The reading on PIN3 of the LM1818 is stable now but it depends from the attenuation I > applied and not from the filtering with the resistor and capacitor.Infact I tried > another same circuit without capacitor and resistor and the problems remains without > the attenuation;with the attenuation it disappears but I don't know if the reading is > right though it's stable.
So the obvious answwer seems to be "use attenuation". Would appear to be measureing equipment setup then, rather than the compnents being measured.
Why do you assume the readings aren't correct if they are now stable? I'm now a little unclear on what exactly the problem is that you are trying to solve.
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