[sdiy] TMS3631 Programmable Top Octave generator data sheet ??

[jpdesroc at oricom.ca]

Hi list,

 

I’m trying to find a datasheet for a TMS3631 Programmable Top Octave generator with no success..

These generators (2 of them) are used in an Elkavox 83 electronic accordion

To generate all the ‘flute type’ and organ notes.

 

There are two variants of the chip, generating different note footings. 

TMS3631-R1104 generates the octave pitches (2' 4' 8' 16') 

and 

TMS3631-R1105A the 1/3' ones (10'2/3 5'1/3 2'2/3 1'1/3).

 

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