[SI-LIST] Re: SI analysis on Low frequency signals

  • From: steve weir <weirsi@xxxxxxxxxx>
  • To: "Umamaheswar U-TLS,Chennai" <umamaheswaruk@xxxxxx>
  • Date: Wed, 28 May 2008 03:41:10 -0700

Crosstalk depends only on:

*Aggressor signal magnitude
*Aggressor signal spectrum
*Interconnect geometry

Given the levels of your sensor, required resolution and the amplitude 
of the digital aggressors you can determine what noise rejection ratio 
you need and design appropriately.

Steve.
Umamaheswar U-TLS,Chennai wrote:
> Hi all,
>
>  
>
> We have a design where 500Hz signals are traveling from external sensor
> to the board; in the vicinity of the 500Hz signals, high frequency
> signals and digitals sections are present. So I am concerned with the
> signal quality( Crosstalk), is there any possibility that 500Hz signals
> get affected due to the nearby high frequency signals.
>
> Do I need to do SI analysis on that board to know the crosstalk, or any
> articles or theoretical analysis is sufficient to know the crosstalk and
> any guidelines in the PCB layout will work?
>
>  
>
> Please help me. 
>
>  
>
> Thanks in advance[Umamaheswar U-TLS,Chennai] .
>
>  
>
>  
>
> Thanks& Regards
>
> U.K.UMAMAHESWAR
>
>  
>
>
>
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