optical voice link

[tenaja]

It's not so much the PIC's latency as it is the speed of the A/D converter. Some of the newer PICs are capable of decent sample rates, but the older ones aren't good for much more than LOW quality audio. Check the datasheet for your PIC in question for it's A/D converter max. sample rate.

I believe this is a myth generated by those who use the default adcin settings of the PBP compiler. For those people, it IS too slow, because the adcin compiler command consumes 100% of the cpu time, AND is much slower than necessary.

For those who read the datasheet so they may operate the adc manually, you get full use of the cpu for other calculations during charge and conversion, and you get it to run at maximum speed. Take note that this is twice as easy with an 18F, because they have a built in sample delay, so there is only one start. With 16F and lower, you have to delay, then start the sample.

[skimask]

I believe this is a myth generated.........

For those who read the datasheet........

I know that...you know that...a few other people know that...
That 2nd line above is the kicker for most 'first timers'...