This paper presents a new method of detecting Analog to Digital Converter harmonic distortion. The new method is based on Wavelet multi-resolution process to identify instantaneous harmonic components. In classical testing, Fourier transform algorithm was long adopted to estimate Total Harmonic Distortion by obtaining signal power spectrum. While the conventional method of Fourier transform ten...

Assessing volcanic hazard in regions of distributed volcanism is challenging because the uncertain location future vents. A statistical-mechanical strategy to forecast such locations was recently proposed: here, we further develop and test it with analog models. We stress a gelatin block laterally surface excavations, observe air-filled crack trajectories. use observed arrivals sample distribut...

A method for single hard fault detection in linear analog circuits based on simulation before testing approach is proposed in this paper. Simulation before testing approach locates or identifies faulty components of the circuit under test (CUT) by creating a fault dictionary for all the potentially faulty components from the simulation of CUT. In the proposed approach, the CUT is simulated usin...

This application note will present a detailed analysis of typical 1310 nm, analog, fiber-optic networks used in CATV systems applications. In the analysis, system calculations and data will be presented that demonstrate the effects of device characteristics on system performance. The laser transmitter, fiber, and optical receiver parameters will be discussed. It will be shown how incorrect devi...

With the upcoming trend towards built-in test structures and implicit testing, more and more issues of test design need to be resolved during circuit design. A basic requirement for manual as well as for automatic test generation is to assess how accurately a given test strategy will classify good and faulty circuits. Measurement error plays an important role here and must be taken into account...

Periodontitis is one of the most common conditions affecting oral health among adults, posing a great challenge for both patients and also dentists aiming to treat this disease. In severe stages such deterioration supporting tissues, namely periodontal ligaments bone, can occur, which will affect biomechanical behavior therefore longevity survival affected teeth. order be able plan subsequent r...

Modern System-on-Chip (SoC) designs are increasingly mixed-signal Very Large Scale Integrated (VLSI) designs that require efficient design and testing methodologies to manage the design complexity and the time-to-market constraints. Also, in mixed-signal integrated circuits (ICs), testing analog cores is the most difficult task and it’s one of the major cost factors in the overall IC manufactur...

Analog and mixed-signal integrated circuits (IC’s) are rapidly becoming more complex. In addition to the traditional problems associated with testing IC’s, such as limited controllability and observability, analog and mixed-signal test is vulnerable to measurement induced errors. Constraints on measuring analog signals significantly increase the complexity and cost of testers for such circuits....

© 2010 ETRI Journal, Volume 32, Number 1, February 2010 Oscillation-based testing of analog-to-digital converters represents a viable option for low-cost built-in self-testing in mixed-signal design. While numerous papers have addressed implementation issues, little attention has been paid to the measurement accuracy. In this letter, we highlight an inherent measurement uncertainty which has to...