I have started playing with an AD9834 sythesizer which has a variable reference clock ( 50 MHZ ocxo on board). The synthesizer comes with some basic software to start you off, you can set up two frequency registers and two phase register and you can also adjust the reference clock. I will come to the point when I reduce the reference clock frequency by a factor of five the output frequency of the DDS is actually multiplied by the same factor.
Reference clock 50MHz output 1MHz
change reference to 10MHz the output changes to 5 MHz ???!!!
I would have expected the output to be reduced ( f = phasexMCLK/2pi)
If you reduce the multiplier doesn't it reduce f?? Can anybody through any light on what I think I am seeing
Reference clock 50MHz output 1MHz
change reference to 10MHz the output changes to 5 MHz ???!!!
I would have expected the output to be reduced ( f = phasexMCLK/2pi)
If you reduce the multiplier doesn't it reduce f?? Can anybody through any light on what I think I am seeing