Filter Design

Discussion in 'Wireless & RF Design' started by verdant2014, Apr 6, 2015.

  1. verdant2014

    Thread Starter New Member

    Apr 6, 2015
    1
    0
    Typically in order to build a filter at the o/p of a chip what data would you need?
    1) Spurious response or S-parameter data?
    2) What is the difference between the two data?
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,144
    1,790
    A specification of spurious response attenuation would be a good start, but we would need more. I'm assuming a bandpass filter since spurs can be above or below the carrier. S-Parameters are used to characterize 2-port networks. I'm not sure they would be useful unless you said something about using a particular device.
    http://en.wikipedia.org/wiki/Scattering_parameters

    How about:
    1. Passband, upper and lower edge
    2. Transition bandwidth and attenuation
    3. Stopband attenuation
    4. Passband ripple
    5. Stopband ripple
    Then we can talk about active, passive, or digital.

    A good reference is:
    Van Valkenburg,Analog Filter Design
    http://www.amazon.com/Analog-Filter-Design-M-E-Valkenburg/dp/0030592461/ref=sr_1_1?ie=UTF8&qid=1428361912&sr=8-1&keywords=Analog filter Design
     
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