On Tue, 2012-01-24 at 15:18 -0500, Nathan House wrote:
> When using a microcontroller that operates at a high clock speed, such
> as an 80MHz PIC32, is there an alternative to using a PLL? I don't see
> any 80MHz crystals on Digikey..

Actually there are higher value crystals out there. The question is
would the PICs crystal driver work at those speeds?

That said, the are alot of benefits to running with a lower crystal and
then using a PLL to get up to the speed you really want. You localize
the high speed clock, and PLLs can do lots of fancy stuff to ensure your
clock is clean.

If you REALLY don't want to use a PLL, use an oscillator. Tons of
options out there. I regularly use 100 and 125MHz oscillators.

TTYL

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