DC blocking Caps

Hi Folks!

Where to place AC coupling/DC blocking capacitor in PCB?near source or load?


  • sauravgoswami
    Depends on your design!!!
  • reachrkata
    Regarding AC Coupling caps I can say for sure that they need to be connected as close to the load as possible. This is because if there is a long path between the source and load there is every possibility to pick up noise. The cap would couple all the noise to GND and there would thus be a clean signal to the load.

    Regarding DC coupling I think it does not matter where you place it.

  • balaseven
    I think its better to have AC coupling at both(source and reciever) side.
  • just2rock

    AC coupling Capacitors should be placed near Load for noise cancellation,supply drop etc.If costing is not a factor ,you may can place it near source end also for immediate generated noise reductions etc.
    Regarding the DC blocking Capacitor ,it should be always better if you place it near source for Grounding of any DC supply that arises.

You are reading an archived discussion.

Related Posts

hello to all
i'm automobile engg. student and i need a seminar report about ELECTRONIC MODULATED SUSPENSION. So please help me
can anybody tell me how can i create a tns string in oracle 10g express edition
I think this falls in the purview of Computing. I have a sensor that will be in motion (so will it vibrate somewhat), and will either be a camera taking...
Hi I am doing my Second Year Computer science and Engineering . In my college they expect us to make a mini-project. The problem is They want an electronic circuit...