[sdiy] Cheap Midi->CV

[James Patchell]

My mistake...I was using the MAX514....but basically...the same idea....

At 06:38 PM 9/5/2005 -0700, James Patchell wrote:
>I would recommend against doing it this way ( if 
>http://www.ucapps.de/mbhp/mbhp_aout.pdf is what you are talking about).  I 
>did a similar thing on a project I did a few years ago ( 
>http://www.oldcrows.net/~patchell/smb1/smb.html )...and in hind sight....I 
>would have not done it that way.  The reason I did do it that was was lack 
>of board real estate...but the correct way is to use a single DAC and a 
>Mux with multiple sample/holds...
>
>The reason is...each DAC has its own gain...and they are off by just 
>enough that it is very annoying.
>
>Here is one of the solutions I came up with :
>
>http://www.oldcrows.net/~patchell/synthmodulesII/200-1017.pdf
>
>Although...that 12 bit DAC that I am using costs about $20....but you get 
>more bang for your buck as opposed to the MAX525 which I recall cost me 
>about $40 each....
>
>At 09:14 AM 9/6/2005 +0800, dougall wrote:
>>The midi box one on ucapps.de is very nice but it requires a MAX525
>>Digital-Analog-Converter which are very expensive.  Anyone on the list
>>know somewhere cheap to get these?
>>
>>There was talk a while back, of a redesign of the Analog Output board
>>to use some cheaper DAC's.
>>
>>--dougalli
>
>         -Jim
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>http://www.oldcrows.net/~patchell
>
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>

         -Jim
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http://www.oldcrows.net/~patchell

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