PDF-MPR121 Jitter and False Touch Detection

INTRODUCTION Touch acquisition takes a few different parts of the system in order to detect touch The baseline filter and touch detection atightly coupled The purpose of the touch detection block is. 52 M z will have a pe riod of 6430 pic sec onds for one c lete cycle Successi ve c cles of a no is free wa ve form will measure exactly 6430 picos ec onds The noise elements that will cause the cloc k pe riod to va ry from 6430 p S are kn own as jitt 5 15 25 35 Jitter Freqiency in MHz RMS Jitter Sensitivity in picoseconds Jitter Measurements Using Phase Locked Loops Z ZQZ Z QQZ Z 587Z Z Q DUT Direct Low Jitter Reference Oscillator Phase Detector Loop Filter Measurement Filter Output at this p MSPS). Extremely low jitter sampling clocks mustperformance is not degraded, because the total jitter is the root-sum-square of the internal sampling clock generation are more often specified in terms IMPACT ON CLOCK DISTRIBUTION IN LHC EXPERIMENTS. S. BARON - TWEPP 2012. AIM OF . this. talk. Understand. the contributions of all the . systems. to the . bunch. . clock. . jitter. RF system . Long distance transmission . Profiling . Memory Write Patterns . to Detect . Keystroke-Harvesting Malware. Stefano Ortolani. 1. , Cristiano . Giuffrida. 1. , and Bruno . Crispo. 2. 1. Vrije. . Universiteit. 2. University of Trento. 2.1.Jitter measurements Jitter (absolute) is the cycle-to-cycle variation of fundamental frequency, i.e. the average absolute difference between consecutive periods, expressed as: ()=-iiJitterabsolut Jonathan Owen. Project Purpose. Explain the following concepts:. Theory of DDS operations. Nyquist. zones. Basics of clock jitter. DAC output modes. Clock jitter effects on DDS Waveforms. Acronyms. DDS – Direct Digital Synthesis. Abstract: Total Jitter is an increasingly important quantity in the development and specification of serial data links but, while it is well defined, it is not well understood. Total Jitter is like pe a. nced. active quenching circuits for single-photon avalanche photodiodes. Mario Stipčević. Photonics and Quantum optics Research Group. Center of excellence for advanced materials and sensing devices. Amir Yazdanbakhsh, David . Palframan. , . Azadeh. . Davoodi. , . Mikko. . Lipasti. , Nam Sung Kim. Department of Electrical and Computer Engineering . Introduction. Technology scaling beyond 32nm degrades the manufacturing yield. Victor Alberto Lopez Nikolskiy. Some theory first. http://knowyourmeme.com/memes/pepe-silvia. Clock jitter. Jitter is the timing variation of a signal edge from its ideal value. In the frequency domain it would look like a broadening of the carrier frequency. Jitter is caused by the superposition of noise sources: the oscillator crystal has thermal noise and creates mechanical perturbations, . CS 469: Security Engineering. These slides are modified with permission from Bill Young (. Univ. of Texas). Coming up: Intrusion Detection. 1. Intrusion . Detection. An . intrusion detection system . State-of-the-art face detection demo. (Courtesy . Boris . Babenko. ). Face detection and recognition. Detection. Recognition. “Sally”. Face detection. Where are the faces? . Face Detection. What kind of features?. By. Harshith Reddy . Sarabudla. Anomaly detection approaches. Command-centric – focus on attack syntax. Mostly capture attack queries that have similar columns but process or display different row contents from those of normal queries.