Rescuing 6 sources and tagging 0 as dead. #IABot (v2.0beta10ehf1)
(Rescuing 6 sources and tagging 0 as dead. #IABot (v2.0beta10ehf1)) |
|||
Line 4:
After working for four years at [[Interdesign, Inc.]] [[Doug Curtis]] went on to found Curtis Electromusic Specialties in 1979.<ref name="strom">[http://synth.stromeko.net/DIY.html#CEMpics Pictures of dead CEM chips] at Stromeko Synth World</ref> He did this specifically to design and manufacture [[integrated circuit]]s for [[Synthesizers|music synthesizers]]. Curtis Electromusic Specialties manufacturered a wide variety of [[Integrated circuit|ICs]], many of which incorporated an entire synthesizer functional component, for example, the [[CEM3340]], which contained a complete [[voltage controlled oscillator]]. By using chips from Curtis (and its competitor, [[SSM]]), synth manufacturers were able to considerably reduce the size of their circuitry. This (along with the advent of inexpensive [[microprocessor]] control) is what led to the wave of [[polyphonic]] [[analog synthesizer]]s in the 1980s. By using the Curtis and SSM chips, manufacturers were able to shrink the size of their circuitry to where it could all fit in a package no larger than what was necessary to also house a keyboard and control panel.<ref name="emwcem">[http://electronicmusic.wikia.com/wiki/Curtis_Electromusic Curtis Electromusic], Electronic Music wiki</ref>
Later developments included more highly integrated circuits such as the 3389 signal processor and the 3396 synth-on-a-chip. The further miniaturaization led to the creation of [[rackmount synthesizer]]s, played via [[MIDI]] from a [[keyboard controller|master keyboard]], and saving performers both money and space.<ref name="emwcem"/><ref>[https://web.archive.org/web/20171012050739/http://curtiselectromusic.com/Home_Page.html About the Company], Curtis Electromusic</ref>
== OnChip Systems ==
In 1988 with the advent of digital technology and software, Doug Curtis broadened his focus beyond synthesizers forming OnChip Systems and did no further design work on music synthesis products, except for occasional consulting for synth manufacturers until his premature death in 2007. Several more patents in his name are assigned for chips designed into various commercial products.<ref name="emwcem"/><ref>[https://web.archive.org/web/20130429124424/http://curtiselectromusic.com/Doug_Curtis.html Doug Curtis], Curtis Electromusic</ref><ref>[https://web.archive.org/web/20171012050739/http://curtiselectromusic.com/Home_Page.html About the Company], Curtis Electromusic</ref>
In 2016 OnChip Systems re-released the 3340, in response to [[Coolaudio International Limited|Coolaudio's]] [http://www.coolaudio.com/features-page.php?product=V3340D V3340] re-design of the part to the same specifications.<ref>[https://www.facebook.com/curtischips/posts/1173548609342828 Curtis Electromusic Specialties], Facebook, 5 June 2016</ref><ref>[https://ask.audio/articles/curtis-family-speaks-out-against-behringer-synth-clone-plans-using-cem3340 Curtis Family Speaks Out Against Behringer Synth Clone Plans Using CEM3340] by Rounik Sethi, Ask.Audio, 21 Mar 2017</ref>
Line 47:
* [[CEM5530]] – 30 Channel Sample & Hold, custom-made for Sequential Circuits
* [[CEM5570]] – [[Bus]] Controlled Signal Processor
<ref name="cemds">CEM data sheets</ref><ref name="sch">Various schematics</ref><ref name="cempo">Curtis Electromusic [https://web.archive.org/web/20130502090659/http://curtiselectromusic.com/Product_Overview.html Product Overview]</ref><ref>[http://www.synthtech.com/cem/cemdata.html ''What chip do I have in my synth?''] at www.synthtech.com</ref>
== Synthesizers using CEM ICs ==
Line 178:
* [[Waldorf Microwave1 revision B]] – 8 CEM3387
* [[Waldorf Wave]] – 16 CEM3387
<ref name="sch" /><ref name="cemci">Curtis Electromusic [https://web.archive.org/web/20130502132536/http://curtiselectromusic.com/Customers_and_Instruments.html Customers and Instruments]</ref><ref name="sd">[http://www.sequencer.de/specials/synthesizer_chip.html Synthesizer Database] by Moogulator</ref><ref name="pp">[http://patchpierre.blogspot.co.uk/2012/02/cem-chips-in-doepfer-modules.html CEM chips in Doepfer Modules] by Pierre Serné, 28 Feb. 2012</ref><ref>[http://www.midibox.org/dokuwiki/doku.php?id=midibox_3396 MIDIbox 3396]</ref><ref>[http://www.digisound80.co.uk/digisound/modules/modules.htm Digisound 80 Synthesizer Modules]</ref><ref>Wikipedia:[https://en.wikipedia.org/wiki/CEM_and_SSM_chips_in_synthesizers CEM and SSM chips in synthesizers]</ref>
== See also ==
Line 198:
=== Data sheets ===
[http://www.sdiy.info/wiki/File:CEM3310_datasheet.pdf CEM3310], [http://www.sdiy.info/wiki/File:CEM3310_datasheet_long.pdf CEM3310 long],[http://www.sdiy.info/wiki/File:CEM3312_datasheet.pdf CEM3312], [http://www.sdiy.info/wiki/File:CEM3320_datasheet.pdf CEM3320], [http://www.sdiy.info/wiki/File:CEM3320_datasheet_long.pdf CEM3320 long], [http://www.sdiy.info/wiki/File:CEM3328_datasheet.pdf CEM3328], [http://www.sdiy.info/wiki/File:CEM3330_datasheet.pdf CEM3330], [http://www.sdiy.info/wiki/File:CEM_3330-3335_long.pdf CEM_3330-3335 long], [http://www.sdiy.info/wiki/File:CEM3340_datasheet.pdf CEM3340], [http://www.sdiy.info/wiki/File:CEM3340-3345_long.pdf CEM_3340-3345 long], [http://www.sdiy.info/wiki/File:CEM3350_datasheet.pdf CEM3350], [http://www.sdiy.info/wiki/File:CEM3360_datasheet.pdf CEM3360], [http://www.sdiy.info/wiki/File:CEM3365_datasheet.pdf CEM3365], [http://www.sdiy.info/wiki/File:CEM3371_datasheet.pdf CEM3371], [http://www.sdiy.info/wiki/File:CEM3372_datasheet.pdf CEM3372], [http://www.sdiy.info/wiki/File:CEM3374_datasheet.pdf CEM3374], [http://www.sdiy.info/wiki/File:CEM3378_datasheet.pdf CEM3378], [http://www.sdiy.info/wiki/File:CEM3381_datasheet.pdf CEM3381], [http://www.sdiy.info/wiki/File:CEM3389_datasheet.pdf CEM3389], [http://www.sdiy.info/wiki/File:CEM3391_datasheet.pdf CEM3391], [http://www.sdiy.info/wiki/File:CEM3394_datasheet.pdf CEM3394], [http://www.sdiy.info/wiki/File:CEM3396_datasheet.pdf CEM3396], [http://www.sdiy.info/wiki/File:CEM5508_datasheet.pdf CEM5508], [http://www.sdiy.info/wiki/File:CEM5530_datasheet.pdf CEM5530]<br />Some are also freely available from:
* [https://web.archive.org/web/20130502090659/http://curtiselectromusic.com/Product_Overview.html Curtis Electromusic]
* [http://synfo.nl/ Synfo.nl]
| |||