OnChip Systems: Difference between revisions
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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> |
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> |
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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>[http://curtiselectromusic.com/Home_Page.html About the Company], Curtis Electromusic</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> |
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== OnChip Systems == |
== OnChip Systems == |
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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>[http://curtiselectromusic.com/Doug_Curtis.html Doug Curtis], Curtis Electromusic</ref><ref>[http://curtiselectromusic.com/Home_Page.html About the Company], Curtis Electromusic</ref> |
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> |
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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> |
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> |
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* [[CEM5530]] – 30 Channel Sample & Hold, custom-made for Sequential Circuits |
* [[CEM5530]] – 30 Channel Sample & Hold, custom-made for Sequential Circuits |
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* [[CEM5570]] – [[Bus]] Controlled Signal Processor |
* [[CEM5570]] – [[Bus]] Controlled Signal Processor |
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<ref name="cemds">CEM data sheets</ref><ref name="sch">Various schematics</ref><ref name="cempo">Curtis Electromusic [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> |
<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> |
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== Synthesizers using CEM ICs == |
== Synthesizers using CEM ICs == |
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* [[Waldorf Microwave1 revision B]] – 8 CEM3387 |
* [[Waldorf Microwave1 revision B]] – 8 CEM3387 |
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* [[Waldorf Wave]] – 16 CEM3387 |
* [[Waldorf Wave]] – 16 CEM3387 |
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<ref name="sch" /><ref name="cemci">Curtis Electromusic [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> |
<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 == |
== See also == |
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=== Data sheets === |
=== Data sheets === |
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[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: |
[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: |
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* [http://curtiselectromusic.com/Product_Overview.html Curtis Electromusic] |
* [https://web.archive.org/web/20130502090659/http://curtiselectromusic.com/Product_Overview.html Curtis Electromusic] |
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* [http://synfo.nl/ Synfo.nl] |
* [http://synfo.nl/ Synfo.nl] |
||
Revision as of 01:42, 4 December 2018
OnChip Systems formerly known as Curtis Electromusic Specialities.
The company
After working for four years at Interdesign, Inc. Doug Curtis went on to found Curtis Electromusic Specialties in 1979.[1] He did this specifically to design and manufacture integrated circuits for music synthesizers. Curtis Electromusic Specialties manufacturered a wide variety of 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 synthesizers 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.[2]
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 synthesizers, played via MIDI from a master keyboard, and saving performers both money and space.[2][3]
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.[2][4][5]
In 2016 OnChip Systems re-released the 3340, in response to Coolaudio's V3340 re-design of the part to the same specifications.[6][7]
Clones
AS ALFA RPAR produces the AS3310, AS3320, AS3330, AS3340, AS3345 and AS3360 in DIP and SMD packages.
The designs
CEM ICs have part numbers of the form "33nn", and synth designers and techs often speak these part numbers without further attribution.[2] De-encapsulated (defective) CEM ICs are obviously bipolar arrays, although Interdesign or Ferranti die marks are missing. They exactly match the 1980 databook 201 Analog IC Designs from Interdesign.[1]
CEM ICs
- CEM3310 – Voltage Controlled Envelope Generator
- CEM3320 – Voltage Controlled Filter
- CEM3328 – Dual Voltage Controlled Amplifier
- CEM3330 – Dual Voltage Controlled Amplifier
- CEM3335 – Dual Voltage Controlled Amplifier
- CEM3340 – Voltage Controlled Oscillator
- CEM3345 – Voltage Controlled Oscillator
- CEM3350 – Dual VC State Variable Filter
- CEM3360 – Dual VCA
- CEM3365 – Fast Dual DAC Multiplier
- CEM3372 - µP Controllable Signal Processor
- CEM3374 – Dual VCO
- CEM3378 – Voltage Controlled Signal Processor, (two-channel voltage controlled mixer, four-pole low-pass VCF, and VCA)
- CEM3379 – Voltage Controlled Signal Processor, (two-channel voltage controlled output pan, four-pole low-pass VCF, and VCA)
- CEM3381 / PDA381 – Dual Low Rise VCA
- CEM3382 / PDA382 – Dual Low Rise VCA
- CEM3385 – Dual Low Noise VCF
- CEM3387 – Low Noise voltage controlled Signal Processor
- CEM3389 – Voltage Controlled Signal Processor
- CEM3391 - µP Controllable Dynamic Signal Processor
- CEM3394 - µP Controllable synthesizer voice
- CEM3396 - µP Controlled Waveshaper/Filter
- CEM5310 – Hex ADSR and VCA
- CEM5315 – Quant ADSR and Octave Divider
- CEM5508 / PD508 – Octal Sample & Hold
- CEM5512 – Octal Double Buffered Sample & Hold
- CEM5510 – Fast Octal Sample & Hold, custom-made for Sequential Circuits
- CEM5530 – 30 Channel Sample & Hold, custom-made for Sequential Circuits
- CEM5570 – Bus Controlled Signal Processor
Synthesizers using CEM ICs
- Akai AX-60 – 6 CEM3394
- Akai VX600 - 12 CEM3374B, 12 CEM3378
- Akai AX-80 – 6 CEM3372
- Behringer Neutron - 2 CEM3340
- Böhm Soundlab – CEM3310, CEM3320, CEM3330, CEM3340
- Buchla 296e – 1 CEM3360
- Cheetah MS6 – 6 CEM3396
- Crumar Bit 01 – 6 CEM3328 in late models
- Crumar Composer – 2 CEM3310, 2 CEM3320, 2 CEM3330
- Crumar Spirit – 2 CEM3340, 2 CEM3350, 3 CEM3360
- Stratus – 6 CEM3310, 6 CEM3320, 6 CEM3330
- Crumar Trilogy – 6 CEM3310, 6 CEM3320, 6 CEM3330
- Deckard's Dream - 17 CEM3340
- Digisound 80-10 – 1 CEM3310
- Digisound 80-16 – 1 CEM3350
- Digisound 80-18 – 1 CEM3310
- Digisound 80-19 – 1 CEM3360
- Digisound 80-2 – 1 CEM3340
- Digisound 80-21 – 1 CEM3340
- Digisound 80-3 – 1 CEM3340
- Digisound 80-4 – 3 CEM3330
- Digisound 80-6 – 1 CEM3320
- Digisound 80-7A – 1 CEM3320, 1 CEM3335
- Digisound 80-9 – 1 CEM3330
- Digisound 80-C9 – 2 CEM3310, 2 CEM3340, 1 CEM3360, 1 CEM3372
- Digisound 80 Dev-91 – 1 CEM3391
- 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 - CEM3394?
- 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
- Doepfer A-134-1 Voltage Controlled Panner/Crossfader - CEM3381
- Doepfer A-179 Light Controlled Voltage Source - CEM3320
- Doepfer Dark Energy - CEM3394 (original model)
- E&MM Spectrum Synthesizer – 2 CEM3310, 1 CEM3320, 2 CEM3330, 3 CEM3340
- EH-30 Modular – 2 CEM3310, 4 CEM3330, 4 CEM3340
- Elka Synthex – 8 CEM3320
- Elka EK-22 – 6 CEM3396
- Ensoniq ESQ1 – 1 CEM3360, 8 CEM3379
- Ensoniq ESQ2 – 1 CEM3360
- Ensoniq Mirage – 8 CEM3328
- Ensoniq SDP-1 - 10 CEM3328
- Ensoniq SQ-80 – 1 CEM3360, 8 CEM3379
- Ensoniq SQ-81 – 1 CEM3360
- Fairlight CMI II – 8 CEM3320, in earlier versions
- Fender/Rhodes Chroma – 8 CEM3350, 8 CEM3360
- Fender/Rhodes Polaris – 6 CEM3372, 6 CEM3374
- Forat F9000 – 4 CEM3320
- Hyperflange + Chorus by Craig Anderton - 1 CEM3340
- Hohner PK150 - 1 CEM3391
- Hohner PK250 - 2 CEM3391
- Juergen Haible Dual VCO - 2 CEM3340
- Keytek CTS-2000 – 8 CEM3389, 1 CEM5530
- Kurzweil K250 – 8 CEM3335
- Linndrum – 2 CEM3320, 1 CEM3360
- Linn 9000 – 4 CEM3320
- Marion Systems MSR-2 - CEM3397
- MIDIbox 3396 – CEM3396
- Moog Memorymoog – 12 CEM3310, 19 CEM3340, 26 CEM3360
- Mutronics Mutator
- Oberheim DX – 3 CEM3328
- Oberheim DMX – 1 CEM3320, or CEM3350 depending upon the voice card
- Oberheim Martix 6 & 6R – 6 CEM3396
- Oberheim Matrix 12 – 12 CEM3374, 12 CEM3372
- Oberheim Matrix 1000 – 6 CEM3396
- Oberheim OB-1 – 2 CEM3310
- Oberheim OB-8 – 16 CEM3310, 16 CEM3320, 16 CEM3340, 2 CEM3360
- Oberheim OB-SX – 2 CEM3310, 1 CEM3320, 2 CEM3340, 1 CEM3360 per voice
- Oberheim OB-X – 2 CEM3310
- Oberheim OB-Xa – 16 CEM3310, 8 CEM3320, 16 CEM3340, 2 CEM3360
- Oberheim Prommer – 1 CEM3328
- Oberheim Xpander – 6 CEM3372, 6 CEM3374
- Octave Plateau Voyetra 8 – 16 CEM3340
- Octave The Cat SRM II – CEM3340
- Oberheim JLCooper filter mod – 1 CEM3320 per voice
- Paia Proteus – 1 CEM3310, 1 CEM3320, 1 CEM3330, 2 CEM3340
- PAIA EKx-40 VCO - 1 CEM3340
- Powertran Transcendent Polysynth – 2 CEM3310 per voice, 2 CEM3340 per voice
- PPG Wave 2.0 – 4 CEM3310, 4 CEM3320
- PPG Wave, 2.2 and 2.3 – 4 CEM3360
- Rhodes Chroma – 8 CEM3350, 8 CEM3360 (some versions have 9)
- Rhodes Polaris – 6 CEM3372, 6 CEM3374
- Roland Jupiter 6 – 12 CEM3340, 6 CEM3360
- Roland Jupiter 8/MKS-80 to serial #511799 (early models) – 8 CEM3340, 4 CEM3360
- Roland Jupiter 8/MKS-80 serial #511800 up (later models) – 4 CEM3360
- Roland MKS-20 – 5 CEM3360
- Roland Roland MC202 – 1 CEM3340
- Roland Roland SH101 – 1 CEM3340
- Sequential Circuits Drumtraks – 2 CEM3320
- Sequential Circuits Max – 6 CEM3394
- Sequential Circuits Multi-Trak – 6 CEM3394
- Sequential Circuits Pro One – 2 CEM3310, 1 CEM3320, 3 CEM3340
- Sequential Circuits Prophet 10 – 20 CEM3310, 10 CEM3320, 22 CEM3340
- Sequential Circuits Prophet 2000 – 8 CEM3379
- Sequential Circuits Prophet 3000 – CEM3387
- Sequential Circuits Prophet-5, Rev 3 – 10 CEM3310, 5 CEM3320, 11 CEM3340
- Sequential Circuits Prophet 600 – 12 CEM3340, 4 CEM3360, 6 CEM3372
- Sequential Circuits Six-Trax – 6 CEM3394
- Sequential Circuits Split8 – 8 CEM3394
- Sequential Circuits Studio 440 – 1 CEM3360, 8 CEM3389, 1 CEM5530
- Sequential Circuits T8 – 16 CEM3340, 8 CEM3372
- Sequential Circuits VS – 8 CEM3378/3379, 4 CEM3360, 2 CEM3365, 4 CEM5510, 2 CEM5530
- Simmons SDS1000 – 3 CEM3394
- Simmons SDS200 - 2 CEM3394
- Simmons SDS400 - 4 CEM3394
- Simmons SDS7 – 1 CEM3340 per module, 1 CEM3372 per module
- Simmons SDS8 – 5 CEM3372
- Simmons SDS800 – 4 CEM3394
- Simmons SDS9 – 3 CEM3394
- Solton Programmer 24 1 CEM3350
- Steiner EVI – 1 CEM3340, 1 SSM2040
- Syntec Banana – 12 CEM3310, 12 CEM3340, 12 CEM3360
- Synton Synrix – 2 CEM3310, 2 CEM3340, 2 CEM3350, 1 CEM3360
- Thomas Henry: Deluxe VCO – CEM3340[12]
- Thomas Henry: A dual VCA – CEM3330[12]
- Waldorf Microwave1 revision A – 8 CEM3389
- Waldorf Microwave1 revision B – 8 CEM3387
- Waldorf Wave – 16 CEM3387
See also
References
- ^ a b Pictures of dead CEM chips at Stromeko Synth World
- ^ a b c d Curtis Electromusic, Electronic Music wiki
- ^ About the Company, Curtis Electromusic
- ^ Doug Curtis, Curtis Electromusic
- ^ About the Company, Curtis Electromusic
- ^ Curtis Electromusic Specialties, Facebook, 5 June 2016
- ^ Curtis Family Speaks Out Against Behringer Synth Clone Plans Using CEM3340 by Rounik Sethi, Ask.Audio, 21 Mar 2017
- ^ CEM data sheets
- ^ a b Various schematics
- ^ Curtis Electromusic Product Overview
- ^ What chip do I have in my synth? at www.synthtech.com
- ^ a b Build a better music synthesiser by Thomas Henry, Tab Books Inc, 1987, ISBN 0-8306-2753-3
- ^ Curtis Electromusic Customers and Instruments
- ^ Synthesizer Database by Moogulator
- ^ CEM chips in Doepfer Modules by Pierre Serné, 28 Feb. 2012
- ^ MIDIbox 3396
- ^ Digisound 80 Synthesizer Modules
- ^ Wikipedia:CEM and SSM chips in synthesizers
External links
- Curtis Electromusic
- Alfa application specific ICs
- What a Difference a Chip Makes a quarter page advertisement in Contemporary Keyboard, February 1980
- Pictures of dead CEM chips at Stromeko Synth World
- A Monolithic Voltage-Controlled Amplifier Employing Log-Antilog Techniques, by Douglas R Curtis, JAES Volume 24 Issue 2 pp. 93-102, March 1976
- SSM & Curtis Chips – Inside out
- About the CEM3340 - ICs for Electro-Music (Part 1) by Charles Blakey, Electronics & Music Maker, March 1981
- About the CEM3320, CEM3330 and CEM3310 - ICs for Electro-Music (Part 2) by Charles Blakey, Electronics & Music Maker, April 1981
Data sheets
CEM3310, CEM3310 long,CEM3312, CEM3320, CEM3320 long, CEM3328, CEM3330, CEM_3330-3335 long, CEM3340, CEM_3340-3345 long, CEM3350, CEM3360, CEM3365, CEM3371, CEM3372, CEM3374, CEM3378, CEM3381, CEM3389, CEM3391, CEM3394, CEM3396, CEM5508, CEM5530
Some are also freely available from: