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ADL5511 phase skew

Question asked by LJM on Oct 31, 2011
Latest reply on Nov 3, 2011 by AndyR

I have been using the ADL5511 to demodulate an amplitude modulated signal. The carrier is 160MHz and the envelope is 20MHz. I have noticed that the phase delay (of the 20MHz envelope) changes with input signal level. What is the cause of this variable phase delay?