variable 1-20Mhz clock, possible??

Wendy

Joined Mar 24, 2008
23,797
What kind of accuracy are you looking for. Basically you are describing a frequency synthisizer, HP makes a wide range, as do other companies. How would you want to control it (assuming something on board), digitally?
 

Thread Starter

raffter

Joined Feb 28, 2008
113
well, I was thinking of a CMOS clock(using maybe schmitt trigger eg74HC14 or similar)... with minimal frequency drift.. using a pot to control freq....will use it to clock a PIC..

schmitt osc ->>buffer(another unused gate)-->>PIC ext clock input



Ralph
 
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