Dual-rail Asynchronous Autocorrelator Design [45]

 

In this chapter, we describe the asynchronous dual-rail design of an RSFQ all-digital one-bit autocorrelator for submillimeter spectrometry applications, featuring 4 GHz input signal bandwidth, double oversampling quantizer, and 16 Mbps-per-channel output rate. The correlator consists of a digital delay line with multiplication and an array of accumulators with parallel read-out. We report experimental results for a 3-stage delay line (294 Josephson junctions) and a array of accumulators (288 Josephson junctions) fabricated in HYPRES' standard - - Nb-trilayer process[7].

• Introduction
• Block diagram
• Digital Delay line and Multiplier.
• Accumulators
• Testing
• Conclusion