CEM3340: Difference between revisions
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The '''CEM3340''' and '''CEM3345''' are a self contained [[VCO]], originally produced by [[OnChip Systems|Curtis Electromusic Specialties]]. With both [[exponential]] and [[linear]] control inputs and up to four output waveforms: [[triangle]], [[sawtooth]], [[square]], and [[pulse]] with voltage controllable [[pulse width]]. It has full temperature compensation making it extremely stable. Also included is provision for [[oscillator sync|hard and soft synchronization]] of the [[frequency]], and an output for easy adjustment of [[VCO high frequency tracking|high frequency tracking]].<ref name="3340ds">[ |
The '''CEM3340''' and '''CEM3345''' are a self contained [[VCO]], originally produced by [[OnChip Systems|Curtis Electromusic Specialties]]. With both [[exponential]] and [[linear]] control inputs and up to four output waveforms: [[triangle]], [[sawtooth]], [[square]], and [[pulse]] with voltage controllable [[pulse width]]. It has full temperature compensation making it extremely stable. Also included is provision for [[oscillator sync|hard and soft synchronization]] of the [[frequency]], and an output for easy adjustment of [[VCO high frequency tracking|high frequency tracking]].<ref name="3340ds">[https://static.miraheze.org/sdiywikiwiki/1/1c/CEM3340-3345_long.pdf CEM3340/3345 data sheet]</ref> |
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== Clones and equivalents == |
== Clones and equivalents == |
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* [https://cabintechglobal.com/tune3340 Precision Tuning of the AS3340 VCO] by [[Rob Hordijk]], September 2018 |
* [https://cabintechglobal.com/tune3340 Precision Tuning of the AS3340 VCO] by [[Rob Hordijk]], September 2018 |
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* [http://electro-music.com/forum/topic-54623.html The VCO-555] by Thomas Henry an approximation of the CEM3340 |
* [http://electro-music.com/forum/topic-54623.html The VCO-555] by Thomas Henry an approximation of the CEM3340 |
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* [ |
* [https://static.miraheze.org/sdiywikiwiki/1/1c/CEM3340-3345_long.pdf CEM3340/3345 data sheet] |
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* [http://synth.stromeko.net/DIY.html#CEMpics Picture of de-encapsulated defect CEM3340] at Stromeko Synth World |
* [http://synth.stromeko.net/DIY.html#CEMpics Picture of de-encapsulated defect CEM3340] at Stromeko Synth World |
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* [http://jhaible.com/legacy/tonline_stuff/hj_modul.html Dual VCO (CEM3340-based, with [[Through-zero FM|thru-zero FM]] and various types of sync)] by Juergen Haible |
* [http://jhaible.com/legacy/tonline_stuff/hj_modul.html Dual VCO (CEM3340-based, with [[Through-zero FM|thru-zero FM]] and various types of sync)] by Juergen Haible |
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