On Tuesday 30 June 2009, Yusuf Caglar AKYUZ wrote:
> 
> > And ... seeking someone who has a bit of spare time,
> > a DM6446 EVM, and interest in solving it:  that EVM
> > can switch audio clocking at runtime, among six different
> > sample rates (of which those are two).
> > 
> > So it would be interesting to get that working.  :)
> > 
> 
> Do you mean controlling PLL1705 with i2c expander u18? I always wonder 
> why this is necessary for evm.

Yes.


> Isn't AIC33 able to create common audio 
> frequencies internally from a reasonable input clock, say 27 Mhz?

Some frequencies.  To get others, it helps to have
some choice of frequencies.  The PLL1705 is fed by
a 27 MHz oscillator ... that logic isn't integrated
into the AIC33, but it *is* part of the PLL chip.




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