FAQ: ADL5380 Performance below 400 MHz.

Document created by Qui Employee on Sep 20, 2011Last modified by AndyR on Jan 31, 2012
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Is the performance of the ADL5380 maintained below 400 MHz?




The minimum frequency as specified on the ADL5380 datasheet is 400 MHz.  Performance is not maintained below this frequency because the low frequency corner of the ADL5380 is determined by the polyphase filter and the overall effect is a degradation in quadrature accuracy.  Below is a graph of the performance of the ADL5380 at low frequencies.  The graph shows data from nominal and skew lots.