IR3109: Difference between revisions
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(Created page with "thumb|right|200px|Roland IR3109 VCF IC in DIP16 package. The '''IR3109''' was a VCF IC produced by [https://en.wikipedia.org/wiki/International_Rectifier International Rectifier] for [https://en.wikipedia.org/wiki/Roland_Corporation Roland Corporation]. It is essentially four independent buffered OTAs and a single input exponential frequency control. The four sections can be interconnected to provide a variety of filter res...") |
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[[File:Roland IR3109 DIP16 VCF IC.jpg|thumb|right|200px|Roland IR3109 VCF IC in DIP16 package.]] |
[[File:Roland IR3109 DIP16 VCF IC.jpg|thumb|right|200px|Roland IR3109 VCF IC in DIP16 package.]] |
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The '''IR3109''' was a [[VCF]] IC produced by [https://en.wikipedia.org/wiki/International_Rectifier International Rectifier] for [https://en.wikipedia.org/wiki/Roland_Corporation Roland Corporation]. It is essentially four independent buffered [[OTA]]s |
The '''IR3109''' was a [[VCF]] IC produced by [https://en.wikipedia.org/wiki/International_Rectifier International Rectifier] for [https://en.wikipedia.org/wiki/Roland_Corporation Roland Corporation]. It is essentially four independent buffered [[OTA]]s which can be interconnected to provide a variety of filter responses, and a single input exponential frequency control.<ref name="alfa">[https://www.alfarzpp.lv/eng/sc/AS3109.pdf AS3109 data sheet], Alfa Rpar</ref><ref name="reverse">[https://modwiggler.com/forum/viewtopic.php?t=126397 reverse engineering the IR3109], Mod Wiggler Forum, Nov 2014</ref> |
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== Synthesizers etc. using the IR3109 == |
== Synthesizers etc. using the IR3109 == |
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* [[SSM2040]] |
* [[SSM2040]] |
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* [[SSM2044]] |
* [[SSM2044]] |
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* [[SSM2045]] |
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== References == |
== References == |
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Revision as of 17:36, 14 February 2022
The IR3109 was a VCF IC produced by International Rectifier for Roland Corporation. It is essentially four independent buffered OTAs which can be interconnected to provide a variety of filter responses, and a single input exponential frequency control.[1][2]
Synthesizers etc. using the IR3109
Prebuilt
- Boss PH-2
- Boss RPH-10
- Roland Juno 6/Juno-60/HS-60
- Roland Jupiter 4/Promar - up to Serial number 800800 matched BA662 with FET buffers, later models IR3109[3]
- Roland Jupiter 6
- Roland Jupiter 8
- Roland JX-3P
- Roland MC-202
- Roland MKS-30
- Roland MKS-80 - until Revision 4, IR-3R05 in Revision 5[3]
- Roland SH-101
DIY projects
- AMSynths AM8060
- AMSynths AM8109
- Mutable Instruments Shruthi-1 IR3109 filter board
See also
References
- ^ AS3109 data sheet, Alfa Rpar
- ^ reverse engineering the IR3109, Mod Wiggler Forum, Nov 2014
- ^ a b Roland Filters by Florian Anwander
External links
- AS3109, SOIC-16 IR3109 clone by Alfa Rpar
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