It is predicted that at the 90nm technolony node, leakage power will surpass dynamic power. This poses several challenges to high-speed circuit designers. By the same token, the complexity of low power, low operating frequency designs is threatened more and more by static power dissipation concerns. It has been recently shown that if energy per operation (EOP) is used as an optimization metric,...

Integrated Systems Group is focused on several key design aspects of modern integrated systems. The group is focused on building cutting edge, energy-efficient integrated systems through vertical optimization encompassing communications and signal processing algorithms and architectures, and digital and mixed-signal circuits. The main research topics include modeling of noise and dynamics in ci...

Continuous advances in IC (integrated circuits) processing technologies offer the possibility to produce integrated circuits with increased complexity and capability at a reduced cost. In addition, integrated circuits are composed more and more of heterogeneous embedded systems with various kinds of digital, analogue, and mixed-signal circuits and sensors that are integrated on the same IC. In ...

The traditional technique of generating MPSK signals is basically to use IQ modulator that involves analog processing like multiplication and addition where inaccuracies may exist and would lead to imbalance problems that affects the output modulated signal and hence the overall performance of the system. In this paper, a simple method is presented for generating the MPSK using logic circuits t...

Microorganisms are able to respond effectively to diverse signals from their environment and internal metabolism owing to their inherent sophisticated information processing capacity. A central aim of synthetic biology is to control and reprogramme the signal processing pathways within living cells so as to realise repurposed, beneficial applications ranging from disease diagnosis and environme...

The use of charge-coupled devic[; structures for analog signal processing is described. By operating in the charge domain, such structures offer the advantages of low··power, compact-layout, and high-speed operation. The circuits are digitally programmable and unlike continuous-time analog circuits, their operation can be fully synchronous. The application or the charge-domain circuits to on-ch...

Integrated Systems Group is focused on several key design aspects of modern integrated systems. The group is focused on building cutting edge, energy-efficient integrated systems through vertical optimization encompassing communications and signal processing algorithms and architectures, and digital and mixed-signal circuits. The main research topics include modeling of noise and dynamics in ci...

In this article we present a strategy how to estimate the signal probabilities for synchronous sequential circuits. For each line in the circuit an OBDDs is constructed only once. Using this OBDD the signal probabilities in every succeeding time frame is computed. We investigated a large set of the ISCAS'89 benchmark circuits, showing that the proposed strategy estimates 75% of all signals cons...

This paper presents a discussion on several methods that can be used to improve the testability of complex mixed-signal telecommunication integrated circuits. We begin by outlining the role of test and its impact on product cost and quality. A brief look at the pending test crises for mixed-signal circuits is also considered. Subsequently, we shall outline the evolution of test strategies with ...

The purpose of this part of the notes is to briefly review some of the prerequisite course materials related to characteristics of active device in microelectronic circuits. We summarize dc, large-signal and small-signal (incremental) models of two major types of active devices used in analog, digital and mixed-mode integrated circuits: metal-oxide-semiconductor field-effect transistors (MOSFET...