Propeller Head Plaza

Technical and scientific discussion of amps, cables and other topics.

Return to Propeller Head Plaza

Message Sort: Post Order or Asylum Reverse Threaded

unusual phase response amplifier

Posted on August 31, 2015 at 10:43:29

Posts: 50
Location: Gilze-Rijen (Holland)
Joined: November 27, 2004
Best all,

Isn`t this an anusual phase response of an amplifier?

The link is:


Hide full thread outline!
Negative group delay, posted on September 14, 2015 at 10:49:36

Posts: 1074
Joined: September 30, 2014
December 0, 0000
Yes, it does look unusual. And I can't explain it. It almost looks like a sign error. If you invert the Y-axis of the phase plot, then it would match with the bandpass response shown in the magnitude plot. Off the top of my head, I can't think of a filter topology that would produce a bandpass response and have a negative group delay through the low pass and high pass transitions.


Page processed in 0.022 seconds.