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Hybrid Semiconductor-Superconductor Fast-Readout Memory for Digital RF Receivers

Results of the development of a new type of a hybrid memory for superconducting Digital-RF receivers supporting 30 Gbps memory readout speed are presented. The main feature of this memory is a combination of a high capacity room-temperature memory and a high speed on-chip superconductive cache in or...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2011-06, Vol.21 (3), p.797-800
Main Authors: Mukhanov, O A, Kirichenko, A F, Filippov, T V, Sarwana, S
Format: Article
Language:English
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Summary:Results of the development of a new type of a hybrid memory for superconducting Digital-RF receivers supporting 30 Gbps memory readout speed are presented. The main feature of this memory is a combination of a high capacity room-temperature memory and a high speed on-chip superconductive cache in order to provide digital waveform templates for Digital-RF signal processing. As a room-temperature high-capacity memory with fast readout, we selected Sympuls pattern generator BMG 30 G-64 M capable of producing a 30 Gbps serial data stream of programmable pattern of 67,108,864 bits. We designed, fabricated, and tested an on-chip cache which receives high-speed template serial data from the room temperature memory and converts it into a stream of 3-bit words of template of local oscillator (LO) for digital mixer. We integrated the memory with a 1 × 3-bit digital I/Q mixer (1-bit digitized RF stream multiplied by 3-bit digital LO).
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2010.2089409