[sdiy] Delays: how?

Ken Stone sasami at hotkey.net.au
Thu Dec 26 09:03:43 CET 2002


of course there are the Princeton Technologies chips PT2395, PT2396 and
PT2399 which do this internally. Or if you like, try something like the CVDM
chips from Motorola - MC3417 or MC3418

Ken


>Hi MED and all,
>
>there is a delay core (i.e. very long shift register) at my website. Its based 
>on an ATMEL 90S1200 controller. You could modify this circuit/firmware to
connect 
>a bit serial ADC/DAC. I've used a delta modulator copied from a delta lab
patent, 
>all you need to interface this to the register is to use a levelshifter (40109 
>for 5V->15V, 4050 for 15V->5V). The delta modulator and demodulator doesn't 
>really qualify as "simple", but at least the parts are easily obtainable
and cheap.
>
>Merry Christmas,
> René
>
>
>
>-- 
>uzs159 at uni-bonn.de
>http://www.uni-bonn.de/~uzs159
>
> 
>
>
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au  
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>



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