T
treez
Guest
Hi,
For a comms system going from one board to another via a cable, (eg CAN, USB, RS232, RS484 etc etc) one can place common mode chokes in the signal lines. Should one place the common mode chokes in the signal lines at the transceiver on both PCBs?
Is there any instance when such common mode chokes should not be used? (I mean, I would have thought one could get unfortunate ringing between the stray diff mode inductance of the common mode choke and the stray capacitance at the transceivers?)
Common mode chokes for signal lines.
https://www.murata.com/-/media/webrenewal/products/emc/emifil/cmcc/pdf/consumer-signal.ashx?la=en-gb
For a comms system going from one board to another via a cable, (eg CAN, USB, RS232, RS484 etc etc) one can place common mode chokes in the signal lines. Should one place the common mode chokes in the signal lines at the transceiver on both PCBs?
Is there any instance when such common mode chokes should not be used? (I mean, I would have thought one could get unfortunate ringing between the stray diff mode inductance of the common mode choke and the stray capacitance at the transceivers?)
Common mode chokes for signal lines.
https://www.murata.com/-/media/webrenewal/products/emc/emifil/cmcc/pdf/consumer-signal.ashx?la=en-gb