Author Topic: How good is the signal at the 50Mhz  (Read 14306 times)

Anton Janovsky (ZR6AIC)

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How good is the signal at the 50Mhz
« on: December 02, 2014, 05:52:24 PM »
Description:

AD9851 uses advanced DDS technology, and is generating direct frequency synthesis.
The generator can produce good spectral purity, frequency and phase can be programmed and controlled.
The Local oscillator is increased relative to the AD9850 internal multiplier X 6, the reference clock is just 30MHZ, 180MHZ. Designed output off 0 ~ 70MHZ, effectively reducing the external frequency source phase noise generated.

Here is the 50Mhz Scope display.


and here is the scope view at 50Mhz. (not perfect but is acceptable)

and here is the scope view at 40Mhz
« Last Edit: December 02, 2014, 05:55:11 PM by Anton Janovsky (ZR6AIC) »