[sdiy] dsPICs with DACs: external 16bit?

[Michael Zacherl]

Tom, you made my day! (I could have sought more thoroughly though ;-/ )


On Jul 7, 2008, at 6:22 PM, Tom Wiltshire wrote:

>
> On 7 Jul 2008, at 14:28, Michael Zacherl wrote:
>
>> So, more generally spoken: _If I wanted_ more accuracy, would it be  
>> reasonable to fit a set of 16bit ADC/DAC on a µC board (Arduino,  
>> PIC, ...)?
>> I just wondered when these little things hit their limits in  
>> respect data handling speed and I/O capabilities.
>> Just thinking of smaller apps like delays etc.
>>
>>   Michael.
>
> Seb Francis' 4xD flanger/delay is a example of exactly this ( http://burnit.co.uk/sdiy/index.php?page=4xd 
>  ).
>
> He's got a dsPIC connected up to a 24-bit codec for input and  
> output, though he's only using 16-bits (Cirrus 24-bit parts are so  
> cheap you might as well use them). There's another PIC to handle the  
> user interface to give you the maximum number of clock cycles for  
> the audio processing. He has some notes about using the board as a  
> general purpose DSP, and what he's already done gives some  
> indication of what is possible. It's good work.
>
> If I didn't have about another million projects already, I'd build  
> one ;)
>
> T.



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