Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?
- Thread starter tdengineer
- Start date
tdengineer
New member
left input pin array is electrodes. right input pin array is spi, dout din , mcu connection
PedalBuilder
Well-known member
What kind of tube screamer is that?
tdengineer
New member
what is a tube screamer?
pricklyrobot
Well-known member
Is this a bot trying to get people to do its EE homework? 
drgonzo1969
Well-known member
stupid bot. If he would have lied and told us it was a tube screamer his homework would have been done by now.
PedalBuilder
Well-known member
tdengineer
New member
what are you guys calling me a bot? this is an EEG PCB this has absolutely nothing to do with tube screamer. I don't know what your guys problems are, im just looking for help on my first pcb from experts but apparently you guys aren't experts because professionals don't act like that.
tdengineer
New member
im gonna make the bom after i finish the pcb becuase ill likely just be adding new stuff to the bom anyways.
pricklyrobot
Well-known member
EEG? As in electroencephalogram?
Unless it’s a brain-controlled Superfuzz (if so, kudos to you, sir!), you’re unlikely to find “professional experts” here…on the DIY guitar fx pedal forum…
* On a side note, can somebody help me debug the distorted repeats on my homebrew Defibrillator, or should I start a separate troubleshooting thread?
Unless it’s a brain-controlled Superfuzz (if so, kudos to you, sir!), you’re unlikely to find “professional experts” here…on the DIY guitar fx pedal forum…
* On a side note, can somebody help me debug the distorted repeats on my homebrew Defibrillator, or should I start a separate troubleshooting thread?
Last edited:
tegendemuur
Well-known member
EEG? As in electroencephalogram?
Unless it’s a brain-controlled Superfuzz (if so, kudos to you, sir!), you’re unlikely to find “professional experts” here…on the DIY guitar fx pedal forum…
* On a side note, can somebody help me debug the distorted repeats on my homebrew Defibrillator, or should I start a separate troubleshooting thread?
pricklyrobot
Well-known member
^ will it chug?
tegendemuur
Well-known member
Ready for the paddle board.EEG? As in electroencephalogram?
Unless it’s a brain-controlled Superfuzz (if so, kudos to you, sir!), you’re unlikely to find “professional experts” here…on the DIY guitar fx pedal forum…
* On a side note, can somebody help me debug the distorted repeats on my homebrew Defibrillator, or should I start a separate troubleshooting thread?
View attachment 105134
tdengineer
New member
god dammit chatgpt told me this was a general pcb forum. it also keeps telling me im gay and I dont know why
vigilante398
Authorized Vendor
You'll have to excuse the responses, but this is a forum dedicated to effect pedals for guitar and bass, so we're musicians, not general PCB experts.
That being said a few of us actually are EE's and like looking at all types of PCBs. If you're wondering about EMI effects though we'll need to know more about the system, specifically your board stackup with thickness and materials, as that will significantly impact things. But as mentioned a BOM (preferably with a schematic) will obviously be helpful. Ideally a netlist for the layout as well to see which traces are going where. There are some great software options out there for analyzing stripline or pseudo-stripline designs for high speed applications, but even at my day job I don't touch things that go into the GHz range very often so I haven't touched them in a while.
I will caveat this by saying I am not an EMI/EMC engineer by trade so I am not an expert in the field of E3, but in my experience most of the people that are experts wouldn't be super helpful unless they're getting paid.
Welcome to the forum, whether you're here on accident or not
vigilante398
Authorized Vendor
Anyone here remember the Burst Box thread over at diystompboxes?
tdengineer
New member
I measured the trise today to be 8ns so the frequency will be around 70mhz.. very slow for high speed. I think ill be good on emi my dielectric from signal to ground is .1mm fprg-4 and the traces are .2mm and 12mm long seperated by 5w. The digital stuff is completely on the other side of the analog stuff (left-right). The only problem might be that the signals im tryna get are 10uv, yes uv not mv. .010mv so its kinda like idk man anything could interfere. Ill be adding mounting holes for a potential emi shield for after i get the pcb if theres any problemsYou'll have to excuse the responses, but this is a forum dedicated to effect pedals for guitar and bass, so we're musicians, not general PCB experts.
That being said a few of us actually are EE's and like looking at all types of PCBs. If you're wondering about EMI effects though we'll need to know more about the system, specifically your board stackup with thickness and materials, as that will significantly impact things. But as mentioned a BOM (preferably with a schematic) will obviously be helpful. Ideally a netlist for the layout as well to see which traces are going where. There are some great software options out there for analyzing stripline or pseudo-stripline designs for high speed applications, but even at my day job I don't touch things that go into the GHz range very often so I haven't touched them in a while.
I will caveat this by saying I am not an EMI/EMC engineer by trade so I am not an expert in the field of E3, but in my experience most of the people that are experts wouldn't be super helpful unless they're getting paid.
Welcome to the forum, whether you're here on accident or not
tegendemuur
Well-known member
Grandpa, tell us your burst box story again!Anyone here remember the Burst Box thread over at diystompboxes?
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