Title :
Hybrid Semiconductor-Superconductor Fast-Readout Memory for Digital RF Receivers
Author :
Mukhanov, O.A. ; Kirichenko, A.F. ; Filippov, T.V. ; Sarwana, S.
Author_Institution :
HYPRES, Inc., Elmsford, NY, USA
fDate :
6/1/2011 12:00:00 AM
Abstract :
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).
Keywords :
radio receivers; signal processing; superconducting memory circuits; BMG 30 G-64 M; Sympuls pattern generator; bit rate 30 Gbit/s; digital RF receivers; digital mixer; digital-RF signal processing; high capacity room-temperature memory; high speed on-chip superconductive cache; hybrid semiconductor-superconductor fast-readout memory; word length 67108864 bit; Clocks; Digital signal processing; Mixers; Radio frequency; Receivers; Synchronization; System-on-a-chip; Cryogenic; DRFM; DSP; RF template; RSFQ; SFQ; digital correlator; waveform library;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2010.2089409