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Subject: The Distortion

Date: 05/09/03 at 12:51 AM
Posted by: ray
E-mail: purefenkimo@yahoo.com.tw
Message Posted:

hi, Mr. or Mrs. :
We all know that the distortion of the active low pass filter is serious at high frequency. And some text book say that the distortion of the filter cannot be measure by "THD" at corner frequency. Because using the Hspice simulate the distortion of the low pass filter, the THD at corner frequency is smaller than the THD at lower frequency. The simulation result is oppsite to the fact. Why the hspice get such wrong simulation result ?
Thanks for your reply.
Ray

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