Connect with us

Series resistor

Discussion in 'Electronic Design' started by eeh, May 18, 2005.

Scroll to continue with content
  1. eeh

    eeh Guest

    Hi,

    Recently I have a DSP filter project. From the DSP evaluation module
    circuit I found that for almost all digital outputs there are 33 ohm
    resistors connecting in series before to the target pin. I wonder if it
    is necessary as it would spend much PCB space in my custom board.

    Thanks!
     
  2. Robert Baer

    Robert Baer Guest

    Acts as a series termination, to "kill" reflections on the driven line.
    You obviously need some trace length to go from one IC to another; an
    0402 size chip will take no more space...
     
  3. eeh

    eeh Guest

    Thanks!
     
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

-