AD9854: digitally controlled oscillator

Document created by analog-archivist Employee on Feb 23, 2016
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Please, be so kind to let me know whether it is possible to use the
integrated circuit AD9854 as a digitally controlled oscillator with
oscillations phase dinamic control within the PLL-circuit


It is certainly possible to use the AD9854 as a digitally programmable
oscillator. And use the AD9854 interface to control the phase of the output. In
fact is you use the AD9854 in PSK mode, you can switch between two
pre-programmed phases using a single IO line.

And yes, you can use a PLL circuit to up convert the output of the AD9854 to a
higher frequency range. Check our dedicated DDS site for more information on
this and other applications