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Need help finding a USB hub schematic

Discussion in 'Datasheets, Manuals and Component Identification' started by KeithM, Nov 3, 2015.

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  1. KeithM

    KeithM

    41
    4
    Nov 3, 2015
    I'm still pretty new to electronics, and this is my first post on here, so please bear with me and any mis-use of proper terminology I might use ;)

    I'm working on designing my first PCB in Eagle, a board for the Intel Edison which breaks out 3 USB A female connectors, and a couple audio jacks that are ran off a USB soundcard also on the PCB.

    I was able to find all the information I need for how to connect usb to the Edison, and the schematics I needed for the audio card.

    Now I'm looking for a schematic of a powered usb hub with with 4 ports.

    I need a USB hub schematic so I can learn what chip(s) and circuits to use to connect the 4 USB jacks to the pins for one usb jack, that are available on the Edison.

    I've been searching around for the last hour trying to find a schematic, I though there would be a lot, but surprisingly I wasn't able to find any.

    Does anyone know of some USB hub schematics that they could share with me? I would really appreciate the help ;)
     
    Last edited by a moderator: Nov 3, 2015
  2. Bluejets

    Bluejets

    4,280
    909
    Oct 5, 2014
    Try this.........

    powered-usb-schematics.png
     
  3. KeithM

    KeithM

    41
    4
    Nov 3, 2015
    Yeah I found that, but it's a bit vague about the "USB hub logic" part
     
  4. KeithM

    KeithM

    41
    4
    Nov 3, 2015
    I've found what I needed, I ripped apart a USB hub I had, and found it used a "FE1.1s" chip for each set of 4 ports. Then I was able to search for the chip and find some schematics
     
    davenn likes this.
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