Sipex SP3232

Discussion in 'General Electronics Chat' started by mstewart, Nov 21, 2014.

  1. mstewart

    Thread Starter New Member

    Nov 21, 2014
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    HI All,
    I am having an issue with a Sipex sp3232 chip. I have tried doing the loopback test on the serial line but still get nothgin but im guessing very confused with what the datasheet says and what is posted elsewhere and was wondering if anybody has experience with them?
    basically the V+ pin, according to the reference should be tied to ground with a capacitor, but some pleaces online show this tied to vcc with a cap?
    also Does this need a decoupling cap between vcc and ground?

    many thanks,

    mark
     
  2. alfacliff

    Well-Known Member

    Dec 13, 2013
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    the vcc should be tied to the supply and bypassed with a cap.
     
  3. mstewart

    Thread Starter New Member

    Nov 21, 2014
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    0
    Hi, many thanks for your reply, slight misunderstanding, the way I explained it I think. the v+ pin is not the vcc pin, it's is I think part of the boost circuit for the rs232 data.

    thanks,

    mark
     
  4. kubeek

    AAC Fanatic!

    Sep 20, 2005
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