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We present a detailed investigation into a source of distortion that affects the classic bootstrapped switch. Our analysis reveals that the transition phase between track mode and hold mode is a critical factor in causing the distortion. To address this issue, we propose a novel technique that effectively mitigates the problem. Our results, based on simulations conducted using a 22-nm FDSOI CMOS p
Abstract—The thorough analysis and the design of a complete 2.2 GHz quadrature receiver front-end suited for low-power applications is reported in this work. The circuit, built in a 90nm CMOS process, features a stacked single-ended low-noise amplifier and a self-oscillating mixer. The oscillator LC tank is designed to provide gain at low frequency without decreasing the quality factor at the osci
This paper presents a hardware implementation of a high quality acoustic echo canceller for use in handsfree telecommunication systems. The implementation is based on an algorithm with no delay in the signal path, attractive for communication systems where low delay is crucial. However, a zero delay algorithm has higher complexity compared to other canceller solutions. A custom silicon implementat
A differential geometric approach based on the gap metric is taken to examine the uniqueness of solutions of the equations describing a feedback interconnection. It is shown that under sufficiently small perturbations on the Fréchet derivative of a nonlinear plant as measured by the gap metric, the uniqueness property is preserved if solutions exist given exogenous signals. The results developed r
This paper presents an FPGA implementation of a novel snd Ihighl! scalable hardware architecture for inversion of triangiiliir matrices. An integral part of modern signal processing and communications applications involves manipulation of large matrices. Therefore, scalable and flexible hardware architectures are increasingly sought for. In this paper the traditional triangular shaped array archit
Education is one of the tools used by the Malaysian policy makers to foster unity and solidarity among people. A well-planned education system can be a useful medium in creating high moral and ethical values, to inculcate spirituality in society as well as to unite racial diversity. Nevertheless, under the complicated multicultural and ethnicity composition of Malaysian society, mother tongue lang
Dataflow is a natural way of modelling streaming applications, such as multimedia, networking and other signal processing applications. In order to cope with the computational and parallelism demands of such streaming applications, multiprocessor systems are replacing uniprocessor systems. Mapping and scheduling these applications on multiprocessor systems are crucial elements for efficient implem
