Hi everyone.
I write hereby to ask you about splitting voltages and grounds in a double side PCB that I am designing. A colleague at work has adviced me to split the 5V and 3.3V in digital, RF and analog traces as well as the grounds ( I have uCs, opamps and communication modules). He says he has seen it in a Application Note somewhere but he haven't it. I have done and initial separation of the power electronic circuits (+24V, +12V) and now for the rest of circuits I don't have too much space for the traces (The size of the pcb is fixed), so I am struggling with it. I consider it would be necessary to split the ground for each voltage (because of the returning currents) and that seems enough for me. What could you suggest me? Have you any tips to route the voltage supply lines in a double side PCB?
Thank you in advance
I write hereby to ask you about splitting voltages and grounds in a double side PCB that I am designing. A colleague at work has adviced me to split the 5V and 3.3V in digital, RF and analog traces as well as the grounds ( I have uCs, opamps and communication modules). He says he has seen it in a Application Note somewhere but he haven't it. I have done and initial separation of the power electronic circuits (+24V, +12V) and now for the rest of circuits I don't have too much space for the traces (The size of the pcb is fixed), so I am struggling with it. I consider it would be necessary to split the ground for each voltage (because of the returning currents) and that seems enough for me. What could you suggest me? Have you any tips to route the voltage supply lines in a double side PCB?
Thank you in advance
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