Digital signal processor: Difference between revisions

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Revision as of 09:48, 4 October 2021

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{{short description|Specialized microprocessor optimized for digital signal processing}}

[[File:Dsp chip.jpg|right|thumb|A [[Texas Instruments TMS320|TMS320]] digital signal processor chip found in a [[Effects unit|guitar effects unit]]. A [[crystal oscillator]] may be seen above.]]

[[File:NeXTcube motherboard.jpg|thumb|The [[NeXTcube]] from 1990 had a [[Motorola 68040]] (25 MHz) and a digital signal processor [[Motorola 56001]] with 2025 MHz which was directly accessible via an interface.]]

A '''digital signal processor''' ('''DSP''') is a specialized [[microprocessor]] chip, with its architecture optimized for the operational needs of [[digital signal processing]].<ref>{{ cite book | editor = Yovits, M. C. |author1=Dyer, S. A. |author2=Harms, B. K. | chapter = Digital Signal Processing | title = Advances in Computers | year = 1993 | volume = 37 | pages = 104–107 | publisher = Academic Press | doi = 10.1016/S0065-2458(08)60403-9 | isbn = 9780120121373 | chapter-url = https://books.google.com/books?id=vL-bB7GALAwC&pg=PA104 }}</ref><ref name="Liptak">{{ cite book | last = Liptak | first = B. G. | title = Process Control and Optimization | series = Instrument Engineers' Handbook | edition = 4th | year = 2006 | volume = 2 | pages = 11–12 | publisher = CRC Press | isbn = 9780849310812 | url = https://books.google.com/books?id=TxKynbyaIAMC&pg=PA11 }}</ref> DSPs are [[semiconductor device fabrication|fabricated]] on [[MOS integrated circuit]] chips.<ref name="computerhistory1979"/><ref name="edn"/> They are widely used in [[audio signal processing]], [[telecommunications]], [[digital image processing]], [[radar]], [[sonar]] and [[speech recognition]] systems, and in common [[consumer electronic]] devices such as [[mobile phones]], [[disk drives]] and [[high-definition television]] (HDTV) products.<ref name="computerhistory1979"/>