Information Technology
CMOS Time-Mode Circuits and Systems Fundamentals and Applications
The rapid scaling of complementary metal oxide semiconductor (CMOS) technology has resulted in the sharp increase of time resolution and the continuous decrease of voltage headroom. As a result, time-mode circuits where information is represented by the time difference between the occurrence of digital events, rather than the nodal voltages or branch currents of electric networks, offer a viable and technology-friendly means to combat scaling-induced difficulties encountered in the design of mixed-mode systems. Time-mode approaches have found a broad spectrum of applications since their inception in time-of-flight measurement several decades ago. These applications include digital storage oscillators, laser-based vehicle navigation systems, analog-to-digital data converters, signal processing, medical imaging, instrumentation, infinite and finite impulse response filters, all digital phase-locked loops, gigabit-per-second (Gbps) serial links, and channel select filters for software- defined radio, to name a few. Various architectures and design techniques of time- mode circuits have emerged recently; a comprehensive examination of the principles of time-based signal processing and the design techniques of time-mode circuits, however, is not available. This book provides the fundamentals of time-based signal processing with an emphasis on the design techniques and applications of CMOS time-mode circuits.
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