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From: umapu02@cc.ic.ac.uk (D.A.G. Gillies   Supvsr  Dr K.J. Bignell)
Newsgroups: sci.electronics
Subject: Re: SP0256-AL2 XTAL (was Re: Looking for SPO256-AL2 chip)
Message-ID: <1990Nov6.183117.5790@cc.ic.ac.uk>
Date: 6 Nov 90 18:31:17 GMT
References: <970015@hpdmd48.boi.hp.com> <1990Oct31.232018.24991@infonode.ingr.com> <1990Nov1.211506.6670@csrd.uiuc.edu>
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In article <1990Nov1.211506.6670@csrd.uiuc.edu> usevitch@s24.csrd.uiuc.edu (Bryan Usevitch) writes:
>girzong@infonode.ingr.com (Gary Girzon) writes:
>
>
>>does anyone know a good source for the 3.12 MHZ crystal required with
>>the SP0256? also, will a standard colorburst (3.58 MHZ) crystal work,
>>perhaps with a higher pitch?
>
>I was a teaching assistant for a group of students that built a speech
>synthesis board around this device.  They used different crystals for
>different effects (such as male and female voices) with good success.  I am
>not sure if they had to modify the digital timings of the circuit to 
>compensate for the different crystal values but as I remember they simply
>swapped crystal values.
 I used a standard 3.2768 MHz crystal in my SPO256 device - no hassle getting 
one of those - might even get one from the dreaded Tandy/RatShack...


 enjoy....





-- 
--Yer give it a twist, an' a flick o' yer wrist, an yer fling it right over
 yer 'ed. Oi !--
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