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[[File:Solid State Micro Technology for Music logo.png|right|150px]]Usually referred to by the the acronym '''SSM''' which can mean '''Solid State Micro Technolgy''', '''Solid State Micro Technolgy for Music''', '''Solid State Music Technology''' or '''Solid State Microelectronics''' depending on which documentation one looks at.<ref name="emwssm">Electronic Music wiki:[http://electronicmusic.wikia.com/wiki/SSM SSM]</ref>
== The company ==
Founded in 1975<ref name="ss">[http://gyraf.dk/schematics/VCAs_Ben_Duncan.pdf ''VCAs Invesigated part two''] by Ben Duncan, Studio Sound, p.60, Jul. 1989</ref> by John Robert Burgoon,<ref name="hae">
SSMs first products were computer boards for the now-obsolete [[S-100 bus]] standard, including some boards intended for music applications. As [[Dave Rossum]] told the story in a 1981 interview with [[Polyphony (magazine)|Polyphony magazine]], an engineer named [[Ron Dow]] had come to [[E-mu Systems]] looking for funding to develop a [[voltage controlled amplifier]] on a chip. However, the proposed design would not have been compatible with the [[modular synthesizer]]s that E-mu was selling at the time, so they turned Dow down. Dow then went to SSM and they agreed to fund the project and market it. The result was the first synthesizer-specific integrated circuit, the SSM2000 VCA. The following year, Dow came back with an idea for an improved design that was compatible with E-mu's systems and E-mu became involved with SSM in the design, the result was the SSM2010.<ref name="emwssm" /><ref name="dri">[http://www.siliconbreakdown.com/rossum_interview.htm Interview of Dave Rossum] by Jay Lee in Polyphony Magazine Nov/Dec 1981</ref>
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SSM was bought out by PMI, which in turn was acquired by [[Analog Devices]], the current owner.<ref>[http://www.chipdocs.com/manufacturers/SSMTM.html ChipDocs]</ref> Most of the classic SSM synth-specific designs are long out of production, but AD does still produce some of the [[VCA]] circuits and [[matched transistor|matched transistor arrays]].<ref name="emwssm" />
==
Functionally equivalent ICs have been produced by [[Alfa Rpar AS]], [[Coolaudio International Ltd.]] and [[Sound Semiconductor Inc]].
== SSM ICs ==
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* [[SSM2014]] – Operational voltage controlled element
* [[SSM2015]] – Microphone preamplifier
* [[SSM2020]] – Monolithic /log/antilog amplifier, also as XR5101
* [[SSM2022]] – Dual linear-antilog VCA
* [[SSM2024]] – Quad [[current controlled amplifier]] (quad VCA)
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* [[SSM2036]] – VCO
* [[SSM2038]] – VCO
* [[SSM2040]] – [[Voltage controlled filter]] (VCF), also as XR5099
* [[SSM2044]] – four pole voltage controlled filter
* [[SSM2045]] – Music Voicing System (2-Pole and 4-Pole Low Pass VCF and Mixer/VCA)
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* [[SSM2164]] – Low Cost Quad Voltage Controlled Amplifier
* [[SSM2300]] – 8 channel [[Multiplex|multiplexed]] [[sample and hold]]
<ref name="cem">
== Synthesizers using x SSM ICs ==
=== Prebuilt ===
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* Oberheim DPX-1 - 1 x SSM2013, 8 x SSM2045, 5 x SSM2300
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* Sequential Circuits Prophet 5, Rev 1 & 2 – 10 x SSM2020, 11 x SSM2030, 5 x SSM2040, 10 x SSM2050
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* Simmons MTX9 – 1 x SSM2300
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* Solton TS4 - 2 x SSM2300
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* Waldorf Wave – 16 x SSM2024
=== DIY projects ===
* [[Aries System 300]] – 1 x SSM2030 in the AR-338, 2 x SSM2030 in the AR-341
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* [https://wiki.theretrowagon.com/wiki/Solid_State_Music_SB1 x SSM SB-1] - 1 x SSM2000
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* Thomas Henry
* Thomas Henry one-chip ADSR – x SSM2056<ref name="th" />
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<ref name="cem"/><ref name="sd">[http://www.sequencer.de/specials/synthesizer_chip.html Synthesizer Database] by Moogulator</ref><ref name="sch">Various schematics</ref>
== See also ==
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* [http://www.s100computers.com/Hardware%20Folder/SSM/History/History.htm Solid State Music history]
* [http://www.vintagecomputermusic.com/solid_state_music_system.php Solid State Music System]
* [http://ssmcurtis.com/
* [http://www.soundsemiconductor.com/ Sound Semiconductor Inc], reissuing SSM ICs
=== Data sheets ===
* [https://archive.org/details/solid-state-micro-technology-for-music-databook-1979 Solid State Micro Technology For Music Databook 1979]
[http://www.sdiy.info/wiki/File:SSM_Catalog.pdf SSM Catalog], [http://www.sdiy.info/wiki/File:SSM2010_datasheet.pdf SSM2010], [http://www.sdiy.info/wiki/File:SSM2012_datasheet.pdf SSM2012], [http://www.sdiy.info/wiki/File:SSM2013_datasheet.pdf SSM2013], [http://www.sdiy.info/wiki/File:SSM2014_datasheet.pdf SSM2014], [http://www.sdiy.info/wiki/File:SSM2015_datasheet.pdf SSM2015], [http://www.sdiy.info/wiki/File:SSM2020_datasheet.pdf SSM2020], [http://www.sdiy.info/wiki/File:SSM2022_datasheet.pdf SSM2022], [http://www.sdiy.info/wiki/File:SSM2024_datasheet.pdf SSM2024], [http://www.sdiy.info/wiki/File:SSM2030_datasheet.pdf SSM2030], [http://www.sdiy.info/wiki/File:SSM2031_datasheet.pdf SSM2031], [http://www.sdiy.info/wiki/File:SSM2033_datasheet.pdf SSM2033], [http://www.sdiy.info/wiki/File:SSM2038_datasheet.pdf SSM2038], [http://www.sdiy.info/wiki/File:SSM2040_datasheet.pdf SSM2040], [http://www.sdiy.info/wiki/File:SSM2044_datasheet.pdf SSM2044], [http://www.sdiy.info/wiki/File:SSM2045_datasheet.pdf SSM2045], [http://www.sdiy.info/wiki/File:SSM2047_datasheet.pdf SSM2047], [http://www.sdiy.info/wiki/File:SSM2050_datasheet.pdf SSM2050], [http://www.sdiy.info/wiki/File:SSM2056_datasheet.pdf SSM2056], [http://www.sdiy.info/wiki/File:SSM2100_datasheet.pdf SSM2100], [http://www.sdiy.info/wiki/File:SSM2120_datasheet.pdf SSM2120], [http://www.sdiy.info/wiki/File:SSM2164_datasheet.pdf SSM2164]▼
* [https://sdiy.info/wiki/File:SSM_Catalog.pdf SSM Catalog, 1986/87]
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Some are also freely available from:
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