Jun 7, 2022 #1 F FreshmanNewbie Full Member level 6 Joined May 10, 2020 Messages 387 Helped 0 Reputation 0 Reaction score 2 Trophy points 18 Activity points 3,857 I am using this connector which has the internal magnetics. And connecting it to an Ethernet PHY device. In the datasheet, we can see, that it has internal capacitors of 100nF. I went through this Connector (CIRCUIT E) which has internal capacitors of 10nF. Can someone tell me what would be the impact of the 10nF and 100nF capacitors? What would be affected if we increase or decrease the value of these capacitors?
I am using this connector which has the internal magnetics. And connecting it to an Ethernet PHY device. In the datasheet, we can see, that it has internal capacitors of 100nF. I went through this Connector (CIRCUIT E) which has internal capacitors of 10nF. Can someone tell me what would be the impact of the 10nF and 100nF capacitors? What would be affected if we increase or decrease the value of these capacitors?
Jun 7, 2022 #2 F FreshmanNewbie Full Member level 6 Joined May 10, 2020 Messages 387 Helped 0 Reputation 0 Reaction score 2 Trophy points 18 Activity points 3,857 Why do we add capacitors on center taps to the magnetics when connecting to an Ethernet PHY? Also what is the reason on why we terminate the other side of the magnetics with a resistor and a capacitor? Upvote 0 Downvote
Why do we add capacitors on center taps to the magnetics when connecting to an Ethernet PHY? Also what is the reason on why we terminate the other side of the magnetics with a resistor and a capacitor?
Jun 7, 2022 #3 betwixt Super Moderator Staff member Joined Jul 4, 2009 Messages 16,256 Helped 5,140 Reputation 10,309 Reaction score 5,123 Trophy points 1,393 Location Aberdyfi, West Wales, UK Activity points 137,581 It is to keep the center tap at zero SIGNAL level while allowing the 'P' points to assume a different common mode voltage. Brian. Upvote 0 Downvote
It is to keep the center tap at zero SIGNAL level while allowing the 'P' points to assume a different common mode voltage. Brian.