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</o:shapelayout></xml><![endif]--></head><body lang=FR-CA link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>I found my problem.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'> Thanks anyway.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=FR style='font-size:11.0pt;font-family:"Calibri",sans-serif'>De :</span></b><span lang=FR style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Synth-diy <synth-diy-bounces@synth-diy.org> <b>De la part de</b> Jean-Pierre Desrochers via Synth-diy<br><b>Envoyé :</b> 9 septembre 2025 11:37<br><b>À :</b> synth-diy@synth-diy.org<br><b>Objet :</b> [sdiy] TMS3631 Programmable Top Octave generator data sheet ??<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>Hi list,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>I’m trying to find a datasheet for a TMS3631 Programmable Top Octave generator with no success..<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>These generators (2 of them) are used in an Elkavox 83 electronic accordion<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>To generate all the ‘flute type’ and organ notes.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>There are two variants of the chip, generating different note footings. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>TMS3631-R1104 generates the octave pitches (2' 4' 8' 16') <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>and <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>TMS3631-R1105A the 1/3' ones (10'2/3 5'1/3 2'2/3 1'1/3).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'><o:p> </o:p></span></p></div></body></html>