We buy 27 pF caps by the thousands for other applications, so we
designed
them into the LP oscillator circuit as well. We have never had any
problems
with either startup or stability.
Mark Walsh
Alice Campbell wrote:
{Quote hidden}> hello all,
> can anyone recommend what caps to use for a 16c84 running on 33Khz?
> mchip databook stops at 100khz. the pattern seems to be, the lower
> the frequency, the more the difference in the caps. ive got a 10 pf
> on the left and about 300 pf on the right, but the oscillator isnt
> stable; it runs about 5 minutes and cuts out. the power is stable,
> from a 9v battery thru 7805. any help appreciated.
> thanks,
> alice
> alice
