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  1. T

    I'm combining 2 ground planes. Analog and Digital. What potential problems can happen?

    AGND AND DGND BOTH ARE FULL PLANES TAKING UP THE ENTIRE SPACE OF THE BOARD COLORED OUTLINES ARE JUST WHERE COMPONENTS WILL CONNECT TO THEIR RESPECTIVE GND'S TOP LEFT WHITE ARROW IS POINTING TO NET TIE'S CONNECTING ANALOG AND DIGITAL GROUND ONLY IN THAT AREA OF THE BOARD The ic on the top...
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    How do I make a via connect Ground 1 and Ground 2 planes without making them the same NET?

    GND and GND2 are 2 different ground planes with their own net. I have it like that on purpose to control return paths in different areas. I just want to connect them in this area but Kicad wont let me connect to planes with different via names. How am I supposed to do this?
  3. T

    Do Intersecting SPI signal return paths cause major issues or do they kind of just pass through each other like light?

    Ads1299 on left. MCU input pins on right. SPI signals going between them on layer 1 Layer 2 is a ground plane 0.11mm dielectric between planes Frequency of signals is around 60mhz. 8ns rise time. DOUT is GREEN and returns to DGND pin on the ADS1299 DIN is BLUE and returns the the...
  4. T

    Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?

    I tried to look it up. How many pages is it generally so i know im lookin at the right thing
  5. T

    Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?

    What are you guys talking about
  6. T

    Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?

    Lol
  7. T

    How Good Is Faraday Tape?

    Yea these eeg’s are a nightmare when it comes to emi. Thanks ill look into rfi
  8. T

    Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?

    I love music but im trying to fix people with paralysis and blindness.
  9. T

    How Good Is Faraday Tape?

    Does anyone have experience with faraday tape and is it good enough to block the signals in this video down to under 20uv, or .02mv if all exposed metal with signals running through it are covered?
  10. T

    Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?

    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...
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    Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?

    god dammit chatgpt told me this was a general pcb forum. it also keeps telling me im gay and I dont know why
  12. T

    Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?

    im gonna make the bom after i finish the pcb becuase ill likely just be adding new stuff to the bom anyways.
  13. T

    Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?

    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.
  14. T

    Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?

    what is a tube screamer?
  15. T

    Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?

    left input pin array is electrodes. right input pin array is spi, dout din , mcu connection
  16. T

    Assuming DOUT and Din (red traces on right side) are at 10ghz, Will emi interfere with electrode inputs on the left?

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