Connect with us

USB connector shield

Discussion in 'General Electronics Discussion' started by Rajinder, Apr 21, 2021.

Scroll to continue with content
  1. Rajinder

    Rajinder

    535
    10
    Jan 30, 2016
    Hi all,
    I wonder if someone could please clear this up for me.
    I have a portable tablet device which has a USB type A connector. Which I am going to connect a separate set of electronics, to get power and GND via a micro USB connector.
    Do I need to connect the shield of the micro USB to OV or can I leave it unconnected.
    I am using a FTDI IC FT232 device.
    I have seen on their guidelines, they use a 0R resistor to connect the shield to 0V. I have seen other documents showing the same connection using a ferrite bead. Also one where a Capacitor is used. I know this is for EMI, but which one do I use?
    My second question is that do I need to place the micro USB connector with a GND plane underneath or nothing? I think it may depend upon my the outcome of my first question.
    Any help would be appreciated, ask if I am really unsure.
    Thanks in advance.
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    11,794
    2,749
    Nov 17, 2011
    This question has been asked before - and answered.
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-