2013/05/13 by Arthur J. Redfern, Kun Shi, Redfern, Arthur J. +1
Computer Science · Mathematics · #94A15 #FOS: Computer and information sciences #Information Theory (cs.IT) #cs.IT #math.IT #msc:94A15
paper · pdf · doi:10.48550/arxiv.1305.2801
4 pages, 6 figures
arxiv created 2013/05/13 · arxiv updated 2013/05/14
ADCs sit at the interface of the analog and digital worlds and fundamentally determine what information is available in the digital domain for processing. This paper shows that a configurable ADC can be designed for signals with non constant information as a function of frequency such that within a fixed power budget the ADC maximizes the information in the converted signal by frequency shaping the quantization noise. Quantization noise shaping can be realized via loop filter design for a single channel delta sigma ADC and extended to common time and frequency interleaved multi channel structures. Results are presented for example wireline and wireless style channels.