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A low-power 416-lag 1.5-b 0.5-TMAC correlator in 0.6um CMOS.
Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för systemteknik, Datorteknik.
Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för systemteknik, Elektroniska komponenter.
2001 (engelsk)Inngår i: IEEE Journal of Solid-State Circuits, ISSN 0018-9200, E-ISSN 1558-173X, Vol. 36, s. 258-265Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The autocorrelation spectrometer is an important instrument for radio astronomy. In satellite-based spectrometers, low power consumption is essential. The correlator chip presented in this paper reduces the power consumption more than five times compared to other full-custom designs. This has been achieved by reducing the number of clocked transistors, using a compact layout of cells, which reduces wire lengths, and using parallel processing of data. Also, the low power performance is combined with a large number of lags and a high data throughput. The correlator performs 0.5-TMAC operations in 416 lags at a sample rate of 1.28-GSample/s with an input data precision of 1.5-b and a correlation period of one second. The chip is also designed to reduce noise generation by using multiple internal clock phases.

sted, utgiver, år, opplag, sider
2001. Vol. 36, s. 258-265
Emneord [en]
clock distribution, CMOS digital integrated circuits, correlators, digital signal processing, integrated circuit design
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Identifikatorer
URN: urn:nbn:se:liu:diva-34948Lokal ID: 24242OAI: oai:DiVA.org:liu-34948DiVA, id: diva2:255796
Tilgjengelig fra: 2009-10-10 Laget: 2009-10-10 Sist oppdatert: 2017-12-13

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