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You're requirements aren't clear to me.
Do you need the sine output or only a variable clock?
Do you need a low jitter, analog interpolated clock or would a fractional clock be sufficient, as generate by your above example code? In the first case, you need all the analog stuff, e.g. a DAC and a low-pass filter, and using a DDS chip means less effort.
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I just want to design clock generator like dds with following specs.
Bandwidth : 50MHz
frequency resolution : 0.5Hz
Is above possible to use nco and comparator without analog stuff, e.g. a DAC, LPF and Comparator.
Thanks.
Honored Contributor
