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I'm creating a PCB to connect an ESP32 to a PHY (lan8720) and I want do route a trace under some resistors. Is there any problem (crosstalk) doing this? The trace is txd0 (txd- on picture) under the resistor txd1.

enter image description here

ocrdu
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rodrigtti
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    Worst for cross-talk: close, parallel tracks. Better: perpendicular tracks. Best: tracks far away from each other. – rdtsc Jul 27 '21 at 21:38

1 Answers1

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so there is any problem (crosstalk) doing this ?

Depends on what layer those traces are on, if they are on adjacent layers, there will be some cross capacitance in the pico-femto farad range. Take your schematic and see what adding in very small capacitors will do to the signal and then see if it will be a problem (probably not)

If there is a ground layer in between on the PCB stackup, then there will be negligible crosstalk.

Voltage Spike
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