[help needed] ADC Alt CAM, Alt CRANK RC filter
ADC Alt CAM, Alt CRANK RC filter
On Frankenso schematic, ADC section for ALT CAM and ALT CRANK have a label that said "low pass filter knee at 100kHz typical". Is the 10K before the diode clamp take into account? I don't think it correct, base on my calculation it should have a cutoff at around 1.5kHz not 100KHz. Is this too much filtering for trigger input? I'm using this input for NA8 Miata CAS input.
Re: ADC Alt CAM, Alt CRANK RC filter
The LPF is only for R313 and C310, filtering caused by external caps, and the influence of R312 are not included in that schematic note.
Required frequency is dependent on your crank wheel. More teeth needs more Hz, as well faster RPM's needs more Hz.
Required frequency is dependent on your crank wheel. More teeth needs more Hz, as well faster RPM's needs more Hz.
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Re: ADC Alt CAM, Alt CRANK RC filter
I am not sure if any miata runs on op-amps
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Re: ADC Alt CAM, Alt CRANK RC filter
My does work on op-amps Both Cam and Crank
Just having some issues above 6500RPM. I have still not found the source of the problem. It could be to do with filtering as you say "maximus64"
For now I'm waiting for another engine... As my current engine started to burn oil...
maximus64 - if you want there is some info here: https://rusefi.com/forum/viewtopic.php?f=3&t=1282
Just having some issues above 6500RPM. I have still not found the source of the problem. It could be to do with filtering as you say "maximus64"
For now I'm waiting for another engine... As my current engine started to burn oil...
maximus64 - if you want there is some info here: https://rusefi.com/forum/viewtopic.php?f=3&t=1282