Hi everyone!
In the schematics of a reference design of an Ethernet Switch with 10G Interfaces, I have seen that the designer has used several capacitors that he called "Return Path Capacitors". These are 100nF and placed between the power supplies (see attachment). Some also placed towards ground.
Does anybody know what's the purpose of these capacitors? If yes, where should they be placed physically on the PCB? How many to use?
Thanks in advance!
Nikos
In the schematics of a reference design of an Ethernet Switch with 10G Interfaces, I have seen that the designer has used several capacitors that he called "Return Path Capacitors". These are 100nF and placed between the power supplies (see attachment). Some also placed towards ground.
Does anybody know what's the purpose of these capacitors? If yes, where should they be placed physically on the PCB? How many to use?
Thanks in advance!
Nikos
Attachments
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