OnChip Systems: Difference between revisions

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== Clones ==
[[ALFAAlfa RPARRpar AS]] produces the AS33xx equivalent ICs in DIP and SMT packages.
 
== The designs ==
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== Synthesizers using CEM ICs ==
=== Prebuilt ===
* [[Akai AX-60]] – 6 x CEM3394
* [[Akai AX-80]] – 6 x CEM3372
* [[Akai VX600]] - 12 x CEM3374B, 12 x CEM3378
* [[Behringer Crave]] - 1 x CEM3340
* [[Behringer Neutron]] - 2 x CEM3340
* [[Buchla 296e]] – 1 x CEM3360
* [[Cheetah MS6]] – 6 x CEM3396
* [[Crumar Bit 99]] – 6 x CEM3328
* [[Crumar Bit One]] – 6 x CEM3328 in late models
* [[Crumar Composer]] – 2 x CEM3310, 2 x CEM3320, 2 x CEM3330
* [[Crumar Spirit]] – 2 x CEM3340, 2 x CEM3350, 3 x CEM3360
* [[Crumar Stratus]] – 6 x CEM3310, 6 x CEM3320, 6 x CEM3330
* [[Crumar Trilogy]] – 6 x CEM3310, 6 x CEM3320, 6 x CEM3330
* [[Doepfer A-106-6 XP Filter]] - CEM3379
* [[Doepfer A-107 Multitype Morphing Filter]] - CEM3379
* [[Doepfer A-109 Voltage Controlled Signal Processor]] - CEM3379
* [[Doepfer A-111-1 High-End VCO]] - CEM3340
* [[Doepfer A-111-2 High End VCO II/VCLFO]] - CEM3340
* [[Doepfer A-111-3 Micro Precision VCO]] - CEM3340
* [[Doepfer A-111-4 Quad Precision VCO]] - CEM3340
* [[Doepfer A-111-5 Synthesizer Voice]] - CEM3394
* [[Doepfer A-121 Multimode Filter]] - CEM3320
* [[Doepfer A-122 24dB Curtis Low Pass Filter]] - CEM3320, CEM3379 in later versions
* [[Doepfer A-123 24dB High Pass]] - CEM3320
* [[Doepfer A-124 Wasp Filter]] - CEM3379
* [[Doepfer A-126 Voltage Controlled Frequency Shifter]] - CEM3382
* [[Doepfer A-130 Voltage Controlled Amplifier]] - CEM3381 in earlier models, alternately CEM3382
* [[Doepfer A-131 Voltage Controlled Amplifier]] - CEM3381 in earlier models, alternately CEM3382
* [[Doepfer A-132-3 Dual linear/exponential VCA]] - CEM3360 (early versions)
* [[Doepfer A-134-1 Voltage Controlled Panner/Crossfader]] - CEM3381
* [[Doepfer A-179 Light Controlled Voltage Source]] - CEM3320
* [[Doepfer Dark Energy]] - CEM3394 (original model)
* Dynacord Add-one - 8 x CEM3389
* [[EH-30 Modular]] – 2 CEM3310, 4 CEM3330, 4 CEM3340
* [[ElkaEH-30 SynthexModular]] – 82 CEM3320x CEM3310, 4 x CEM3330, 4 x CEM3340
* [[Elka EK-22]]Synthex68 CEM3396x CEM3320
* [[EnsoniqElka ESQ1]]EK-2216 CEM3360,x 8 CEM3379CEM3396
* [[Ensoniq ESQ2]]ESQ-1 – 1 x CEM3360, 8 x CEM3379
* [[Ensoniq Mirage]]ESQ-281 CEM3328x CEM3360
* [[Ensoniq SDP-1]]Mirage - 108 x CEM3328
* [[Ensoniq SQSDP-80]] – 1 CEM3360,- 10 8x CEM3379CEM3328
* [[Ensoniq SQ-81]]80 – 1 x CEM3360, 8 x CEM3379
* Ensoniq SQ-81 – 1 x CEM3360
* [[Fairlight CMI II]] – 8 CEM3320, in earlier versions
* [[Fender/RhodesFairlight Chroma]]CMI II – 8 CEM3350x CEM3320, 8in earlier CEM3360versions
* [[Fender/Rhodes Polaris]]Chroma68 CEM3372x CEM3350, 68 x CEM3374CEM3360
* Fender/Rhodes Polaris – 6 x CEM3372, 6 x CEM3374
* [[Forat F9000]] – 4 x CEM3320
* [[Hyperflange + Chorus]] by Craig Anderton - 1 x CEM3340
* [[Hohner PK150]] - 1 CEM3391
* [[Hohner PK250]]PK150 - 21 x CEM3391
* [[Hohner PK150]]PK250 - 12 x CEM3391
* [[Keytek CTS-2000]] – 8 x CEM3389, 1 x CEM5530
* [[Kurzweil K250]] – 8 x CEM3335
* [[Linndrum]] – 2 CEM3320, 1 CEM3360
* [[Linn 9000]]Linndrum42 x CEM3320, 1 x CEM3360
* Linn 9000 – 4 x CEM3320
* [[Marion Systems MSR-2]] - CEM3397
* Marion Systems MS9C - 8 3387
* [[Moog Memorymoog]] – 12 x CEM3310, 19 x CEM3340, 26 x CEM3360
* [[Mutronics Mutator]]
* [[Oberheim DX]] – 3 x CEM3320
* [[Oberheim DMX]] – 1 x CEM3320, or CEM3350 depending upon the voice card
* [[Oberheim Martix 6|Oberheim MartixMatrix 6 & 6R]] – 6 x CEM3396
* [[Oberheim Matrix 12]] – 12 x CEM3374, 12 x CEM3372
* [[Oberheim Matrix 1000]] – 6 x CEM3396
* [[Oberheim OB-1]] – 2 x CEM3310
* [[Oberheim OB-8]] – 16 x CEM3310, 16 x CEM3320, 16 x CEM3340, 2 x CEM3360
* [[Oberheim OB-SX]] – 2 x CEM3310, 1 x CEM3320, 2 x CEM3340, 1 x CEM3360 per [[voice]]
* [[Oberheim OB-X]] – 2 x CEM3310
* [[Oberheim OB-Xa]] – 16 x CEM3310, 8 x CEM3320, 16 x CEM3340, 2 x CEM3360
* [[Oberheim Prommer]] – 1 x CEM3328<!-- or 3320?-->
* [[Oberheim Xpander]] – 6 x CEM3372, 6 x CEM3374
* [[Octave Plateau Voyetra 8]] – 16 x CEM3340
* [[Octave The Cat SRM II]] – CEM3340
* [[JLCooper filter mod|Oberheim JLCooper filter mod]] per voice: 1 x CEM3320 per voice
* [[Polyfusion Series 2000 Synthesizer]] - 3340 revision D only, revision A and B are based on the [[μA726]] and [[XR2207]]
* [[PPG Wave|PPG Wave 2.0]] – 4 x CEM3310, 4 x CEM3320
* [[PPG Wave|PPG Wave, 2.2 and 2.3]] – 4 x CEM3360
* [[Rhodes Chroma]] – 8 x CEM3350, 8 x CEM3360 (some versions have 9)
* [[Rhodes Polaris]] – 6 x CEM3372, 6 x CEM3374
* [[Roland Jupiter 6]] – 12 x CEM3340, 6 x CEM3360
* [[Roland Jupiter 8|Roland Jupiter 8/MKS-80]] to serial #511799 (early models) – 8 x CEM3340, 4 x CEM3360
* Roland Jupiter 8/MKS-80 serial #511800 up (later models) – 4 x CEM3360
* [[Roland MKS-20]] – 5 x CEM3360
* [[Roland Roland MC202]] – 1 x CEM3340
* [[Roland Roland SH101]] – 1 x CEM3340
* [[Sequential Circuits Drumtraks]] – 2 x CEM3320
* [[Sequential Circuits Max]] – 6 x CEM3394
* [[Sequential Circuits Multi-Trak]] – 6 x CEM3394
* [[Sequential Circuits Pro One]] – 2 x CEM3310, 1 x CEM3320, 3 x CEM3340
* [[Sequential Circuits Prophet 10]] – 20 x CEM3310, 10 x CEM3320, 22 x CEM3340
* [[Sequential Circuits Prophet 2000]] – 8 x CEM3379
* [[Sequential Circuits Prophet 3000]] – CEM3387
* [[Sequential Circuits Prophet-5]], Rev 3 – 10 CEM3310, 5 x CEM3320, 11 x CEM3340
* [[Sequential Circuits Prophet 600]] – 12 x CEM3340, 4 x CEM3360, 6 x CEM3372
* [[Sequential Circuits Six-Trax]] – 6 x CEM3394
* [[Sequential Circuits Split8]] – 8 x CEM3394
* [[Sequential Circuits Studio 440]] – 1 x CEM3360, 8 x CEM3389, 1 x CEM5530
* [[Sequential Circuits T8]] – 16 x CEM3340, 8 x CEM3372
* [[Sequential Circuits VS]] – 8 x CEM3378/3379, 4 x CEM3360, 2 x CEM3365, 4 x CEM5510, 2 x CEM5530
* [[Simmons SDS1000]] – 3 x CEM3394
* [[Simmons SDS200]] - 2 x CEM3394
* [[Simmons SDS400]] - 4 x CEM3394
* [[Simmons SDS7]]1 CEM3340 per module,: 1 CEM3372x perCEM3340, module1 x CEM3372
* [[Simmons SDS8]] – 5 x CEM3372
* [[Simmons SDS800]] – 4 x CEM3394
* [[Simmons SDS9]] – 1 x CEM3372, 3 x CEM3394
* [[Solton Programmer 24]] - 1 x CEM3350
* [[Solton TS3]] - 3 x CEM3360
* [[Solton TS4]] - 1 x CEM3360
* [[Steiner EVI]] – 1 x CEM3340, 1 SSM2040
* [[Syntec Banana]] – 12 x CEM3310, 12 x CEM3340, 12 x CEM3360
* [[Synton Synrix]] – 2 x CEM3310, 2 x CEM3340, 2 x CEM3350, 1 x CEM3360
* [[Voyetra 8]] - 16 x CEM3340
* [[Waldorf Microwave1 revision A]] – 8 x CEM3389
* [[Waldorf Microwave1 revision B]] – 8 x CEM3387
* [[Waldorf Wave]] – 16 x CEM3387
 
=== DIY projects ===
* [[Böhm Soundlab]] – CEM3310, CEM3320, CEM3330, CEM3340
* [[Deckard's Dream]] - 17 x CEM3340
* [[Digisound 80-10]] – 1 x CEM3310
* [[Digisound 80-16]] – 1 x CEM3350
* [[Digisound 80-18]] – 1 x CEM3310
* [[Digisound 80-19]] – 1 x CEM3360
* [[Digisound 80-2]] – 1 x CEM3340
* [[Digisound 80-21]] – 1 x CEM3340
* [[Digisound 80-3]] – 1 x CEM3340
* [[Digisound 80-4]] – 3 x CEM3330
* [[Digisound 80-6]] – 1 x CEM3320
* [[Digisound 80-7A]] – 1 x CEM3320, 1 x CEM3335
* [[Digisound 80-9]] – 1 x CEM3330
* [[Digisound 80-C9]] – 2 x CEM3310, 2 x CEM3340, 1 x CEM3360, 1 x CEM3372
* [[Digisound 80 Dev-91]] – 1 x CEM3391
* [[Dusk work Self-Tuning VCO]] - 1 x AS3340
* [[E&MM Spectrum Synthesizer]] – 2 x CEM3310, 1 x CEM3320, 2 x CEM3330, 32 x CEM3340
* [[JuergenElektor Haiblenew Dual VCOsynthesiser]] - 2 x CEM3310, 1 x CEM3320, 2 x CEM3340
* [[PaiaElektor Proteuspolyphonic synthesiser]] - 1per voice: 2 x CEM3310, 1 x CEM3320, 1 CEM3330,or 2 x CEM3340
* [[Kijimi]] - 16 AS3340, 24 CEM3360
* [[PAIAJuergen EKx-40Haible Dual VCO]] - 12 x CEM3340
* [[MIDIbox 3396]] – CEM3396
* [[Kijimi]] - 16 x AS3340, 24 x CEM3360
* [[Paia Proteus]] – 1 CEM3310, 1 CEM3320, 1 CEM3330, 2 CEM3340
* [[MIDIbox 3396]] – CEM3396
* [[PAIA EKx-40 VCO]] - 1 CEM3340
* [[PowertranPAiA TranscendentProteus polysynth1]] – 21 x CEM3310, per1 voicex CEM3320, 21 CEM3340x perCEM3330, voice2 x CEM3340
* PAIA EKx-40 VCO - 1 x CEM3340
* [[Thomas Henry]]: Deluxe VCO – CEM3340<ref name="th">Build a better music synthesiser by Thomas Henry, Tab Books Inc, 1987, {{ISBN|0830627553}}</ref>
* [[Powertran Transcendent polysynth]] - per voice: 2 x CEM3310, 2 x CEM3340
* [[Thomas Henry]]: Deluxe VCO – CEM3340<ref name="th">Build a better music synthesiser by Thomas Henry, Tab Books Inc, 1987, {{ISBN|0830627553}}</ref>
* Thomas Henry: A dual VCA – CEM3330<ref name="th" />
<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>
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== See also ==
* [[Solid State Micro Technology for Music]]
* [[Alfa Rpar AS]]
 
== References ==
{{reflist}}
 
== Further reading ==
* ''[https://archive.org/details/ElektorMagazine/Elektor%5Bnonlinear.ir%5D%201981-10/page/n19/mode/1up Synthesiser IC's]'' by H. P. Baumann, Elektor 078, Oct 1981, pp. 10-18
* ''Electronic Music Circuits'' by Barry Klein, Howard Sams, 1982, {{ISBN|067221833X}}
 
== External links ==
* [https://web.archive.org/web/20080124170117/http://curtiselectromusic.com/ Curtis Electromusic] (- archived)
* [http://www.alfarzpp.lv/eng/sc/application.php Alfa application specific ICs]
* [http://retrosynthads.blogspot.co.uk/2011/07/curtis-electromusic-specialties-what.html What a Difference a Chip Makes] a quarter page advertisement in Contemporary Keyboard, February 1980
* [http://synth.stromeko.net/DIY.html#CEMpics Pictures of dead CEM chips] at Stromeko Synth World
* [http://www.aes.org/e-lib/browse.cfm?elib=2639 A Monolithic Voltage-Controlled Amplifier Employing Log-Antilog Techniques], by Douglas R Curtis, JAES Volume 24 Issue 2 pp. 93-102, March 1976
* [http://ssmcurtis.com/ SSM & Curtis Chips –Synth's Inside outOut]
* About the CEM3340 - [http://www.muzines.co.uk/articles/ics-for-electro-music/2561 ICs for Electro-Music (Part 1)] by Charles Blakey, Electronics & Music Maker, March 1981
* About the CEM3320, CEM3330 and CEM3310 - [http://www.muzines.co.uk/articles/ics-for-electro-music/2596 ICs for Electro-Music (Part 2)] by Charles Blakey, Electronics & Music Maker, April 1981
* [https://gearspace.com/board/electronic-music-instruments-and-electronic-music-production/1016749-cem-curtis-love-thread.html CEM (Curtis) Love Thread], Gearspace.com, Jul 2015
 
== YouTube ==
* [https://youtu.be/rslPZYUMQMw New vs. old Curtis CEM3340 rev G comparison]
=== 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:CEM3330-3335_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]