On March 27, 2005 06:47 am, microsoftwarecontrol wrote:
> I start using ad9833 to build LC meter, but
> found need a clk source and only pic has.
> Will osc2/clkout do the job?

The clock on the PIC should do fine.
If you do the math by hand, you realize that there are some factors that 
cancel themselves out and use time as a ratio between C1 and C2, where 
C1 is your calibrated value while C2 is your measured value.... 
likewise with L.
I once built a capacitance meter using a 0.5mhz computer, so a PIC 
running at whatever speed that is okay should do just fine.

Here is a possible application note which may fit your needs:
http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en011113
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