Digital signal processor

A digital signal processor (DSP) is a specialized microprocessor chip, with its architecture optimized for the operational needs of digital signal processing.^[1]^{: 104–107}^[2] DSPs are fabricated on metal–oxide–semiconductor (MOS) integrated circuit chips.^[3]^[4] 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.^[3]

The goal of a DSP is usually to measure, filter or compress continuous real-world analog signals. Most general-purpose microprocessors can also execute digital signal processing algorithms successfully, but may not be able to keep up with such processing continuously in real-time. Also, dedicated DSPs usually have better power efficiency, thus they are more suitable in portable devices such as mobile phones because of power consumption constraints.^[5] DSPs often use special memory architectures that are able to fetch multiple data or instructions at the same time.

^ Dyer, Stephen A.; Harms, Brian K. (13 August 1993). "Digital Signal Processing". In Yovits, Marshall C. (ed.). Advances in Computers. Vol. 37. Academic Press. pp. 59–118. doi:10.1016/S0065-2458(08)60403-9. ISBN 978-0120121373. ISSN 0065-2458. LCCN 59015761. OCLC 858439915. OL 10070096M.
^ Liptak, B. G. (2006). Process Control and Optimization. Instrument Engineers' Handbook. Vol. 2 (4th ed.). CRC Press. pp. 11–12. ISBN 978-0849310812 – via Google Books.
^ ^a ^b "1979: Single Chip Digital Signal Processor Introduced". The Silicon Engine. Computer History Museum. Retrieved 14 October 2019.
^ Taranovich, Steve (August 27, 2012). "30 years of DSP: From a child's toy to 4G and beyond". EDN. Retrieved 14 October 2019.
^ Ingrid Verbauwhede; Patrick Schaumont; Christian Piguet; Bart Kienhuis (2005-12-24). "Architectures and Design techniques for energy efficient embedded DSP and multimedia processing" (PDF). rijndael.ece.vt.edu. Retrieved 2017-06-13.

[1] Dyer, Stephen A.; Harms, Brian K. (13 August 1993). "Digital Signal Processing". In Yovits, Marshall C. (ed.). Advances in Computers. Vol. 37. Academic Press. pp. 59–118. doi:10.1016/S0065-2458(08)60403-9. ISBN 978-0120121373. ISSN 0065-2458. LCCN 59015761. OCLC 858439915. OL 10070096M.

[Liptak-2] Liptak, B. G. (2006). Process Control and Optimization. Instrument Engineers' Handbook. Vol. 2 (4th ed.). CRC Press. pp. 11–12. ISBN 978-0849310812 – via Google Books.

[computerhistory1979-3] "1979: Single Chip Digital Signal Processor Introduced". The Silicon Engine. Computer History Museum. Retrieved 14 October 2019.

[edn-4] Taranovich, Steve (August 27, 2012). "30 years of DSP: From a child's toy to 4G and beyond". EDN. Retrieved 14 October 2019.

[schaum-2004-5] Ingrid Verbauwhede; Patrick Schaumont; Christian Piguet; Bart Kienhuis (2005-12-24). "Architectures and Design techniques for energy efficient embedded DSP and multimedia processing" (PDF). rijndael.ece.vt.edu. Retrieved 2017-06-13.

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