The TMS320 family of digital signal processors
Article Abstract:
Digital signal processing applications have common characteristics which influence the design of processors. The characteristics include: mathematically intensive algorithms; real-time operation; sampled data implementation; and system flexibility. Large mainframes were first used for such applications, and array processors were later utilized. Advances in IC technology now make it possible to implement solutions in single chip designs. The TMS320 family of processors from Texas Instruments are single-chip digital signal processors. The basic architecture of these devices follows five concepts: Harvard architecture; extensive pipelining; dedicated hardware multiplier; special DSP instructions; and a fast instruction cycle. The TMS320C30 has a 60 to 75-nanosecond cycle time. Specific product characteristics and applications of the TMS320 family are discussed.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1987
User Contributions:
Comment about this article or add new information about this topic:
The application of gallium arsenide integrated circuit technology to the design and fabrication of future generation digital signal processors: promises and problems
Article Abstract:
Gallium Arsenide (GaAs) semiconductor technology offers high speed performance suitable for such applications as the next generation digital signal processors (DSPs), but the relative low complexity requires a different and integrated algorithm, design, development, and manufacturing strategy for DSPs. Digital signal processing algorithms will have to be tailored to take advantage of GaAs ICs with speeds of 200MHz or more while accommodating gate limits of 5,000 or less. Shorter GaAs gate delays will require more modeling and simulation at chip, device, and board levels. Other issues that must be addressed in an interrelated manner include memory layout, logic design, arithmetic implementation, interconnection, and chip, logic board, and system layout, materials, and packaging. Each issue and related problems are explored.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1988
User Contributions:
Comment about this article or add new information about this topic:
Fourier optical signal processors
Article Abstract:
Fourier optical signal processing is the intentional modification of the spectrum of an image to change the image or some process based on the image, such as image restoration, or recognition of the image by an autonomous system. The emphasis here is on image recognition in hopes that new algorithms and devices will allow a hybrid optical/digital system to be applicable in the workplace. Fourier optical processors rely on a lens to extract a two-dimensional Fourier transform of an input signal; the input illumination must be highly coherent light, and the computation must be done fully in parallel, that is, at the speed of light. The 'number crunching' potential of optical processing has motivated research in this area since the availability of the laser as a practical source for such a system.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1989
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: ATC ground communications system optimization techniques. Applicability of an augmented GPS for navigation in the National Airspace System
- Abstracts: Thin film deposition and microelectronic and optoelectronic device fabrication and characterization in monocrystalline alpha and beta silicon carbide
- Abstracts: Novel heterojunction varactors. Dependence of process parameters on planarization isolation and etching of sloped Vias in polyimides for GaAs ICs
- Abstracts: Fast packet switch architectures for broadband integrated services digital networks. Issues in packet radio network design
- Abstracts: Applications of highly stable oscillators to scientific measurements. Nonlinear oscillators, iterated maps, symbolic dynamics, and knotted orbits