A low-power 416-lag 1.5-b 0.5-TMAC correlator in 0.6um CMOS.
2001 (English)In: IEEE Journal of Solid-State Circuits, ISSN 0018-9200, Vol. 36, 258-265 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2001. Vol. 36, 258-265 p.
clock distribution, CMOS digital integrated circuits, correlators, digital signal processing, integrated circuit design
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-34948Local ID: 24242OAI: oai:DiVA.org:liu-34948DiVA: diva2:255796