List: time-nuts@lists.febo.com
From: ed breya
Frequency subtraction with D-flip flops
Tue, Jun 25, 2013 2:36 AM
It seems to me that whenever fd is much higher than fc (fd>>fc),
then it's clearly undersampling, so aliasing will occur, producing
fo=fd-n*fc, where n is the highest integer that allows fd>n*fc. If
so, then this should be true all the way down to fd>2*fc.