A 0.8 micrometer CMOS 2-D Programmable Mixed-Signal Focal-Plane Array Processor with On-Chip Binary Imaging and Instructions Storage
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Tartalom: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumbe...
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published

Type = Article
Cím:
A 0.8 micrometer CMOS 2-D Programmable Mixed-Signal Focal-Plane Array Processor with On-Chip Binary Imaging and Instructions Storage
Létrehozó:
Dominguez-Castro, R.
Espejo, S. M.
Rodriguez-Vazquez, A.
Földesy, Péter
Zarándy, Ákos
Szolgay, Péter
Szirányi, Tamás
Roska, Tamás
Dátum:
1997
Téma:
TK Electrical engineering. Electronics Nuclear engineering / elektrotechnika, elektronika, atomtechnika
Tartalmi leírás:
This paper presents a CMOS chip for the parallel acquisition and concurrent analog processing of two-dimensional (2-D) binary images. Its processing function is determined by a reduced set of 19 analog coefficients whose values are programmable with 7-b accuracy. The internal programming signals are analog, but the external control interface is fully digital. On-chip nonlinear digital-to-analog converters (DAC's) map digitally coded weight values into analog control signals, using feedback to predistort their transfer characteristics in accordance to the response of the analog programming circuitry. This strategy cancels out the nonlinear dependence of the analog circuitry with the programming signal and reduces the influence of interchip technological parameters random fluctuations. The chip includes a small digital RAM memory to store eight sets of processing parameters in the periphery of the cell array and four 2-D binary images spatially distributed over the processing array. It also includes the necessary control circuitry to realize the stored instructions in any order and also to realize programmable logic operations among images. The chip architecture is based on the cellular neural/nonlinear network universal machine (CNN-UM). It has been fabricated in a 0.8-mu m single-poly double-metal technology and features 2-mu s operation speed (time required to process an image) and around 7-b accuracy in the analog processing operations.
Típus:
Article
PeerReviewed
Formátum:
text
Azonosító:
Dominguez-Castro, R. and Espejo, S. M. and Rodriguez-Vazquez, A. and Földesy, Péter and Zarándy, Ákos and Szolgay, Péter and Szirányi, Tamás and Roska, Tamás (1997) A 0.8 micrometer CMOS 2-D Programmable Mixed-Signal Focal-Plane Array Processor with On-Chip Binary Imaging and Instructions Storage. IEEE JOURNAL OF SOLID-STATE CIRCUITS, 32 (7). pp. 1013-1026. ISSN 0018-9200
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