Concept

Gigue (électronique)

Publications associées (48)

Reduction of the effects of spurious PLL tones on A/D converters

In a non-ideal PLL circuit, leakage of the reference signal into the control line produces spurious tones. When the distorted PLL signal is used in an analog-to-digital converter (ADC), it creates spurious tones in the sampled data as well. This paper anal ...

IEEE2010

High Performance InP-Based Quantum Dash Semiconductor Mode-Locked Lasers for Optical Communications

Anthony Martinez

Several applications are pushing the development of high performance mode-locked lasers: generation of short pulses for extremely high bit rate transmission at 100 Gb/s and beyond, all-optical clock recovery at 40 Gb/s and beyond, generation of millimeter ...

2009

Exploiting the Path Propagation Time in Multipath Transmission with FEC

We consider a transmission of a delay-sensitive data stream from a single source to a single destination. The reliability of this transmission may suffer from bursty packet losses - the predominant type of failures in today's Internet. An effective and wel ...

2009

A Data-driven Approach to Speech/Non-speech Detection

Hynek Hermansky, Sree Hari Krishnan Parthasarathi

We present a data-driven approach to weighting the temporal context of signal energy to be used in a simple speech/non-speech detector (SND). The optimal weights are obtained using linear discriminant analysis (LDA). Regularization is performed to handle n ...

IDIAP2008

A Power-Efficient Clock and Data Recovery Circuit in 0.18-um CMOS Technology for Multi-Channel Short-Haul Optical Data Communication

Seyed Armin Tajalli, Yusuf Leblebici, Paul Victor Georges Muller

This paper studies the specifications of gated-oscillator-based clock and data recovery circuits (GO CDRs) designed for short haul optical data communication systems. Jitter tolerance (JTOL) and frequency tolerance (FTOL) are analyzed and modeled as two ma ...

2007

Performance of an Impulse Radio Communication System in the Presence of Gaussian Jitter

Pierre-André Farine, Cyril Botteron

In this paper, the bit error rate (BER) performance for an ultra-wide bandwidth (UWB) impulse radio in an additive white Gaussian noise (AWGN) transmission channel and with Gaussian jitter is estimated. The assumed receiver combines the received pulses to ...

2007

Tradeoffs in Design of Low-Power Gated-Oscillator CDR Circuits

Seyed Armin Tajalli, Yusuf Leblebici, Paul Victor Georges Muller

This article describes some techniques for implementing low- power clock and data recovery (CDR) circuits based on gated- oscillator (GO) topology for short distance applications. Here, the main tradeoffs in design of a high performance and power-efficient ...

2007

Comparison of a Timing-Error Tolerant Scheme with a Traditional Re-transmission Mechanism for Networks on Chips

Giovanni De Micheli, David Atienza Alonso, Luca Benini, Srinivasan Murali, Federico Angiolini

On-chip wires are becoming unreliable as the effect of various noise sources increases with technology scaling. This leads to unpredictable timing delay variations on the interconnect wires. There is a significant need to mitigate the effect of parasitics ...

2006

A delay optimal policy for symmetric broadcast channels

Stéphane Musy

We consider the rate allocation problem when two users (each one associated with one receiver) send packets through a symmetric broadcast channel. Under the assumption that the packet lengths are exponentially distributed, we establish the delay optimality ...

2006

A Low-Jitter and Low-Power CMOS PLL for Clock Multiplication

Pierre-André Farine, Steve Tanner, Michael Ansorge, Kilian Imfeld

this paper describes a phase-locked loop (PLL) designed for clock multiplication in a LVDS transmitter. The PLL consists of a novel low-jitter charge-pump, a fully differential ring-oscillator based VCO, a dynamic-logic PFD, a 2nd order passive loop filter ...

2006

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